[ty] enum.Flag

## Summary

This was previously the last commit in #19415, split out to make it
easier to review. This applies the fixes from c9b99e4, 5021f32, and
2922490cb8 to the new rendering code in `ruff_db`. I initially intended
only to fix the empty span after a line terminator (as you can see in
the branch name), but the two fixes were tied pretty closely together,
and my initial fix for the empty spans needed a big change after trying
to handle unprintable characters too. I can still split this up if it
would help with review. I would just start with the unprintable
characters first.

The implementation here is essentially copy-pasted from
`ruff_linter::message::text.rs`, with the `SourceCode` struct renamed to
`EscapedSourceCode` since there's already a `SourceCode` in scope in
`render.rs`. It's also updated slightly to account for the multiple
annotations for a single snippet. The original implementation used some
types from the `line_width` module from `ruff_linter`. I copied over
heavily stripped-down versions of these instead of trying to import
them. We could inline the remaining code entirely, if we want, but I
thought it was nice enough to keep.

I also moved over `ceil_char_boundary`, which is unchanged except to
make it a free function taking a `&str` instead of a `Locator` method.
All of this code could be deleted from `ruff_linter` if we also move
over the `grouped` output format, which will be the last user after
#19415.

## Test Plan

I added new tests in `ruff_linter` that call into the new rendering code
to snapshot the diagnostics for the affected cases. These are copies of
existing snapshots in Ruff, so it's helpful to compare them. These are a
bit noisy because of the other rendering differences in the header, but
all of the `^^^` indicators should be the same.

<details><summary>`empty_span_after_line_terminator` diff</summary>

```diff
diff --git a/crates/ruff_linter/src/rules/pycodestyle/snapshots/ruff_linter__rules__pycodestyle__tests__E112_E11.py.snap b/crates/ruff_linter/src/message/snapshots/ruff_linter__message__text__tests__empty_span_after_line_terminator.snap
index 5ade4346e0..6df75c16f0 100644
--- a/crates/ruff_linter/src/rules/pycodestyle/snapshots/ruff_linter__rules__pycodestyle__tests__E112_E11.py.snap
+++ b/crates/ruff_linter/src/message/snapshots/ruff_linter__message__text__tests__empty_span_after_line_terminator.snap
@@ -1,17 +1,20 @@
 ---
-source: crates/ruff_linter/src/rules/pycodestyle/mod.rs
+source: crates/ruff_linter/src/message/text.rs
+expression: value.to_string()
 ---
-E11.py:9:1: E112 Expected an indented block
+error[no-indented-block]: Expected an indented block
+  --> E11.py:9:1
    |
  7 | #: E112
  8 | if False:
  9 | print()
-   | ^ E112
+   | ^
 10 | #: E113
 11 | print()
    |
 
-E11.py:9:1: SyntaxError: Expected an indented block after `if` statement
+error[invalid-syntax]: SyntaxError: Expected an indented block after `if` statement
+  --> E11.py:9:1
    |
  7 | #: E112
  8 | if False:
@@ -21,7 +24,8 @@ E11.py:9:1: SyntaxError: Expected an indented block after `if` statement
 11 | print()
    |
 
-E11.py:12:1: SyntaxError: Unexpected indentation
+error[invalid-syntax]: SyntaxError: Unexpected indentation
+  --> E11.py:12:1
    |
 10 | #: E113
 11 | print()
@@ -31,7 +35,8 @@ E11.py:12:1: SyntaxError: Unexpected indentation
 14 | mimetype = 'application/x-directory'
    |
 
-E11.py:14:1: SyntaxError: Expected a statement
+error[invalid-syntax]: SyntaxError: Expected a statement
+  --> E11.py:14:1
    |
 12 |     print()
 13 | #: E114 E116
@@ -41,17 +46,19 @@ E11.py:14:1: SyntaxError: Expected a statement
 16 | create_date = False
    |
 
-E11.py:45:1: E112 Expected an indented block
+error[no-indented-block]: Expected an indented block
+  --> E11.py:45:1
    |
 43 | #: E112
 44 | if False:  #
 45 | print()
-   | ^ E112
+   | ^
 46 | #:
 47 | if False:
    |
 
-E11.py:45:1: SyntaxError: Expected an indented block after `if` statement
+error[invalid-syntax]: SyntaxError: Expected an indented block after `if` statement
+  --> E11.py:45:1
    |
 43 | #: E112
 44 | if False:  #
```

</details>

<details><summary>`unprintable_characters` diff</summary>

```diff
diff --git a/crates/ruff_linter/src/rules/pylint/snapshots/ruff_linter__rules__pylint__tests__PLE2512_invalid_characters.py.snap b/crates/ruff_linter/src/message/snapshots/ruff_linter__message__text__tests__unprintable_characters.snap
index 52cfdf9cce..fcfa1ac9f1 100644
--- a/crates/ruff_linter/src/rules/pylint/snapshots/ruff_linter__rules__pylint__tests__PLE2512_invalid_characters.py.snap
+++ b/crates/ruff_linter/src/message/snapshots/ruff_linter__message__text__tests__unprintable_characters.snap
@@ -1,161 +1,115 @@
 ---
-source: crates/ruff_linter/src/rules/pylint/mod.rs
+source: crates/ruff_linter/src/message/text.rs
+expression: value.to_string()
 ---
-invalid_characters.py:24:12: PLE2512 [*] Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:24:12
    |
 22 | cr_ok = f'\\r'
 23 |
 24 | sub = 'sub '
-   |            ^ PLE2512
+   |            ^
 25 | sub = f'sub '
    |
-   = help: Replace with escape sequence
+help: Replace with escape sequence
 
-ℹ Safe fix
-21 21 | cr_ok = '\\r'
-22 22 | cr_ok = f'\\r'
-23 23 | 
-24    |-sub = 'sub '
-   24 |+sub = 'sub \x1A'
-25 25 | sub = f'sub '
-26 26 | 
-27 27 | sub_ok = '\x1a'
-
-invalid_characters.py:25:13: PLE2512 [*] Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:25:13
    |
 24 | sub = 'sub '
 25 | sub = f'sub '
-   |             ^ PLE2512
+   |             ^
 26 |
 27 | sub_ok = '\x1a'
    |
-   = help: Replace with escape sequence
-
-ℹ Safe fix
-22 22 | cr_ok = f'\\r'
-23 23 | 
-24 24 | sub = 'sub '
-25    |-sub = f'sub '
-   25 |+sub = f'sub \x1A'
-26 26 | 
-27 27 | sub_ok = '\x1a'
-28 28 | sub_ok = f'\x1a'
+help: Replace with escape sequence
 
-invalid_characters.py:55:25: PLE2512 [*] Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:55:25
    |
 53 | zwsp_after_multicharacter_grapheme_cluster = f"ಫ್ರಾನ್ಸಿಸ್ಕೊ ​​"
 54 |
 55 | nested_fstrings = f'␈{f'{f'␛'}'}'
-   |                         ^ PLE2512
+   |                         ^
 56 |
 57 | # https://github.com/astral-sh/ruff/issues/7455#issuecomment-1741998106
    |
-   = help: Replace with escape sequence
-
-ℹ Safe fix
-52 52 | zwsp_after_multicharacter_grapheme_cluster = "ಫ್ರಾನ್ಸಿಸ್ಕೊ ​​"
-53 53 | zwsp_after_multicharacter_grapheme_cluster = f"ಫ್ರಾನ್ಸಿಸ್ಕೊ ​​"
-54 54 | 
-55    |-nested_fstrings = f'␈{f'{f'␛'}'}'
-   55 |+nested_fstrings = f'␈{f'\x1A{f'␛'}'}'
-56 56 | 
-57 57 | # https://github.com/astral-sh/ruff/issues/7455#issuecomment-1741998106
-58 58 | x = f"""}}ab"""
+help: Replace with escape sequence
 
-invalid_characters.py:58:12: PLE2512 [*] Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:58:12
    |
 57 | # https://github.com/astral-sh/ruff/issues/7455#issuecomment-1741998106
 58 | x = f"""}}ab"""
-   |            ^ PLE2512
+   |            ^
 59 | # https://github.com/astral-sh/ruff/issues/7455#issuecomment-1741998256
 60 | x = f"""}}a␛b"""
    |
-   = help: Replace with escape sequence
+help: Replace with escape sequence
 
-ℹ Safe fix
-55 55 | nested_fstrings = f'␈{f'{f'␛'}'}'
-56 56 | 
-57 57 | # https://github.com/astral-sh/ruff/issues/7455#issuecomment-1741998106
-58    |-x = f"""}}ab"""
-   58 |+x = f"""}}a\x1Ab"""
-59 59 | # https://github.com/astral-sh/ruff/issues/7455#issuecomment-1741998256
-60 60 | x = f"""}}a␛b"""
-61 61 | 
-
-invalid_characters.py:64:12: PLE2512 Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:64:12
    |
 63 | # https://github.com/astral-sh/ruff/issues/13294
 64 | print(r"""␈␛�​
-   |            ^ PLE2512
+   |            ^
 65 | """)
 66 | print(fr"""␈␛�​
    |
-   = help: Replace with escape sequence
+help: Replace with escape sequence
 
-invalid_characters.py:66:13: PLE2512 Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:66:13
    |
 64 | print(r"""␈␛�​
 65 | """)
 66 | print(fr"""␈␛�​
-   |             ^ PLE2512
+   |             ^
 67 | """)
 68 | print(Rf"""␈␛�​
    |
-   = help: Replace with escape sequence
+help: Replace with escape sequence
 
-invalid_characters.py:68:13: PLE2512 Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:68:13
    |
 66 | print(fr"""␈␛�​
 67 | """)
 68 | print(Rf"""␈␛�​
-   |             ^ PLE2512
+   |             ^
 69 | """)
    |
-   = help: Replace with escape sequence
+help: Replace with escape sequence
 
-invalid_characters.py:73:9: PLE2512 Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:73:9
    |
 71 | # https://github.com/astral-sh/ruff/issues/18815
 72 | b = "\␈"
 73 | sub = "\"
-   |         ^ PLE2512
+   |         ^
 74 | esc = "\␛"
 75 | zwsp = "\​"
    |
-   = help: Replace with escape sequence
+help: Replace with escape sequence
 
-invalid_characters.py:80:25: PLE2512 [*] Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:80:25
    |
 78 | # tstrings
 79 | esc = t'esc esc ␛'
 80 | nested_tstrings = t'␈{t'{t'␛'}'}'
-   |                         ^ PLE2512
+   |                         ^
 81 | nested_ftstrings = t'␈{f'{t'␛'}'}'
    |
-   = help: Replace with escape sequence
-
-ℹ Safe fix
-77 77 | 
-78 78 | # tstrings
-79 79 | esc = t'esc esc ␛'
-80    |-nested_tstrings = t'␈{t'{t'␛'}'}'
-   80 |+nested_tstrings = t'␈{t'\x1A{t'␛'}'}'
-81 81 | nested_ftstrings = t'␈{f'{t'␛'}'}'
-82 82 | 
+help: Replace with escape sequence
 
-invalid_characters.py:81:26: PLE2512 [*] Invalid unescaped character SUB, use "\x1A" instead
+error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
+  --> invalid_characters.py:81:26
    |
 79 | esc = t'esc esc ␛'
 80 | nested_tstrings = t'␈{t'{t'␛'}'}'
 81 | nested_ftstrings = t'␈{f'{t'␛'}'}'
-   |                          ^ PLE2512
+   |                          ^
    |
-   = help: Replace with escape sequence
-
-ℹ Safe fix
-78 78 | # tstrings
-79 79 | esc = t'esc esc ␛'
-80 80 | nested_tstrings = t'␈{t'{t'␛'}'}'
-81    |-nested_ftstrings = t'␈{f'{t'␛'}'}'
-   81 |+nested_ftstrings = t'␈{f'\x1A{t'␛'}'}'
-82 82 |
+help: Replace with escape sequence
```

</details>

.gitattributes

@@ -5,6 +5,9 @@ crates/ruff_linter/resources/test/fixtures/pycodestyle/W605_1.py text eol=crlf
 crates/ruff_linter/resources/test/fixtures/pycodestyle/W391_2.py text eol=crlf
 crates/ruff_linter/resources/test/fixtures/pycodestyle/W391_3.py text eol=crlf
 
+crates/ruff_python_formatter/resources/test/fixtures/ruff/f-string-carriage-return-newline.py text eol=crlf
+crates/ruff_python_formatter/tests/snapshots/format@f-string-carriage-return-newline.py.snap text eol=crlf
+
 crates/ruff_python_formatter/resources/test/fixtures/ruff/docstring_code_examples_crlf.py text eol=crlf
 crates/ruff_python_formatter/tests/snapshots/format@docstring_code_examples_crlf.py.snap text eol=crlf
 
@@ -21,6 +24,7 @@ crates/ruff_linter/resources/test/fixtures/pyupgrade/UP018_LF.py text eol=lf
 crates/ruff_python_parser/resources/inline linguist-generated=true
 
 ruff.schema.json -diff linguist-generated=true text=auto eol=lf
+ty.schema.json -diff linguist-generated=true text=auto eol=lf
 crates/ruff_python_ast/src/generated.rs -diff linguist-generated=true text=auto eol=lf
 crates/ruff_python_formatter/src/generated.rs -diff linguist-generated=true text=auto eol=lf
 *.md.snap linguist-language=Markdown

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,8 +1,9 @@
 <!--
-Thank you for contributing to Ruff! To help us out with reviewing, please consider the following:
+Thank you for contributing to Ruff/ty! To help us out with reviewing, please consider the following:
 
 - Does this pull request include a summary of the change? (See below.)
-- Does this pull request include a descriptive title?
+- Does this pull request include a descriptive title? (Please prefix with `[ty]` for ty pull
+  requests.)
 - Does this pull request include references to any relevant issues?
 -->
 

.github/actionlint.yaml

@@ -7,5 +7,7 @@ self-hosted-runner:
     - depot-ubuntu-latest-8
     - depot-ubuntu-22.04-16
     - depot-ubuntu-22.04-32
+    - depot-windows-2022-16
     - github-windows-2025-x86_64-8
     - github-windows-2025-x86_64-16
+    - codspeed-macro

.github/mypy-primer-ty.toml

@@ -0,0 +1,8 @@
+#:schema ../ty.schema.json
+# Configuration overrides for the mypy primer run
+
+# Enable off-by-default rules.
+[rules]
+possibly-unresolved-reference = "warn"
+unused-ignore-comment = "warn"
+division-by-zero = "warn"

.github/workflows/build-binaries.yml

@@ -49,7 +49,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build sdist"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           command: sdist
           args: --out dist
@@ -79,7 +79,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels - x86_64"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: x86_64
           args: --release --locked --out dist
@@ -121,7 +121,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels - aarch64"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: aarch64
           args: --release --locked --out dist
@@ -177,7 +177,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: ${{ matrix.platform.target }}
           args: --release --locked --out dist
@@ -230,7 +230,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: ${{ matrix.target }}
           manylinux: auto
@@ -304,13 +304,13 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: ${{ matrix.platform.target }}
           manylinux: auto
           docker-options: ${{ matrix.platform.maturin_docker_options }}
           args: --release --locked --out dist
-      - uses: uraimo/run-on-arch-action@ac33288c3728ca72563c97b8b88dda5a65a84448 # v2
+      - uses: uraimo/run-on-arch-action@d94c13912ea685de38fccc1109385b83fd79427d # v3.0.1
         if: ${{ matrix.platform.arch != 'ppc64' && matrix.platform.arch != 'ppc64le'}}
         name: Test wheel
         with:
@@ -370,7 +370,7 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: ${{ matrix.target }}
           manylinux: musllinux_1_2
@@ -435,13 +435,13 @@ jobs:
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           target: ${{ matrix.platform.target }}
           manylinux: musllinux_1_2
           args: --release --locked --out dist
           docker-options: ${{ matrix.platform.maturin_docker_options }}
-      - uses: uraimo/run-on-arch-action@ac33288c3728ca72563c97b8b88dda5a65a84448 # v2
+      - uses: uraimo/run-on-arch-action@d94c13912ea685de38fccc1109385b83fd79427d # v3.0.1
         name: Test wheel
         with:
           arch: ${{ matrix.platform.arch }}

.github/workflows/build-docker.yml

@@ -38,9 +38,9 @@ jobs:
           submodules: recursive
           persist-credentials: false
 
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -63,7 +63,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         with:
           images: ${{ env.RUFF_BASE_IMG }}
           # Defining this makes sure the org.opencontainers.image.version OCI label becomes the actual release version and not the branch name
@@ -79,7 +79,7 @@ jobs:
       # Adapted from https://docs.docker.com/build/ci/github-actions/multi-platform/
       - name: Build and push by digest
         id: build
-        uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 # v6
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
         with:
           context: .
           platforms: ${{ matrix.platform }}
@@ -119,11 +119,11 @@ jobs:
           pattern: digests-*
           merge-multiple: true
 
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         with:
           images: ${{ env.RUFF_BASE_IMG }}
           # Order is on purpose such that the label org.opencontainers.image.version has the first pattern with the full version
@@ -131,7 +131,7 @@ jobs:
             type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
             type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -167,9 +167,9 @@ jobs:
           - debian:bookworm-slim,bookworm-slim,debian-slim
           - buildpack-deps:bookworm,bookworm,debian
     steps:
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -219,7 +219,7 @@ jobs:
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         # ghcr.io prefers index level annotations
         env:
           DOCKER_METADATA_ANNOTATIONS_LEVELS: index
@@ -231,7 +231,7 @@ jobs:
             ${{ env.TAG_PATTERNS }}
 
       - name: Build and push
-        uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 # v6
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
         with:
           context: .
           platforms: linux/amd64,linux/arm64
@@ -262,11 +262,11 @@ jobs:
           pattern: digests-*
           merge-multiple: true
 
-      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         env:
           DOCKER_METADATA_ANNOTATIONS_LEVELS: index
         with:
@@ -276,7 +276,7 @@ jobs:
             type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
             type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}
 
-      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}

.github/workflows/ci.yaml

@@ -143,12 +143,12 @@ jobs:
         env:
           MERGE_BASE: ${{ steps.merge_base.outputs.sha }}
         run: |
-          if git diff --quiet "${MERGE_BASE}...HEAD" -- ':**' \
-            ':!**/*.md' \
-            ':crates/ty_python_semantic/resources/mdtest/**/*.md' \
+          # NOTE: Do not exclude all Markdown files here, but rather use
+          # specific exclude patterns like 'docs/**'), because tests for
+          # 'ty' are written in Markdown.
+          if git diff --quiet "${MERGE_BASE}...HEAD" -- \
             ':!docs/**' \
             ':!assets/**' \
-            ':.github/workflows/ci.yaml' \
           ; then
               echo "changed=false" >> "$GITHUB_OUTPUT"
           else
@@ -184,6 +184,7 @@ jobs:
             ':crates/ruff_python_trivia/**' \
             ':crates/ruff_source_file/**' \
             ':crates/ruff_text_size/**' \
+            ':crates/ruff_benchmark/**' \
             ':.github/workflows/ci.yaml' \
           ; then
               echo "changed=false" >> "$GITHUB_OUTPUT"
@@ -213,7 +214,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: |
           rustup component add clippy
@@ -233,17 +234,17 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
         with:
           tool: cargo-insta
       - name: ty mdtests (GitHub annotations)
@@ -291,17 +292,17 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
         with:
           tool: cargo-nextest
       - name: "Install cargo insta"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
         with:
           tool: cargo-insta
       - name: "Run tests"
@@ -312,7 +313,7 @@ jobs:
 
   cargo-test-windows:
     name: "cargo test (windows)"
-    runs-on: github-windows-2025-x86_64-16
+    runs-on: depot-windows-2022-16
     needs: determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
@@ -320,11 +321,11 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install cargo nextest"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
         with:
           tool: cargo-nextest
       - name: "Run tests"
@@ -347,7 +348,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup target add wasm32-unknown-unknown
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
@@ -376,11 +377,11 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
       - name: "Build"
         run: cargo build --release --locked
 
@@ -399,27 +400,18 @@ jobs:
         with:
           file: "Cargo.toml"
           field: "workspace.package.rust-version"
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         env:
           MSRV: ${{ steps.msrv.outputs.value }}
         run: rustup default "${MSRV}"
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
-      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
-        with:
-          tool: cargo-nextest
-      - name: "Install cargo insta"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
-        with:
-          tool: cargo-insta
-      - name: "Run tests"
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
+      - name: "Build tests"
         shell: bash
         env:
-          NEXTEST_PROFILE: "ci"
           MSRV: ${{ steps.msrv.outputs.value }}
-        run: cargo "+${MSRV}" insta test --all-features --unreferenced reject --test-runner nextest
+        run: cargo "+${MSRV}" test --no-run --all-features
 
   cargo-fuzz-build:
     name: "cargo fuzz build"
@@ -431,13 +423,13 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           workspaces: "fuzz -> target"
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install cargo-binstall"
-        uses: cargo-bins/cargo-binstall@63aaa5c1932cebabc34eceda9d92a70215dcead6 # v1.12.3
+        uses: cargo-bins/cargo-binstall@808dcb1b503398677d089d3216c51ac7cc11e7ab # v1.14.2
         with:
           tool: cargo-fuzz@0.11.2
       - name: "Install cargo-fuzz"
@@ -459,7 +451,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
       - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         name: Download Ruff binary to test
         id: download-cached-binary
@@ -493,7 +485,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup component add rustfmt
       # Run all code generation scripts, and verify that the current output is
@@ -504,12 +496,10 @@ jobs:
       # Verify that adding a plugin or rule produces clean code.
       - run: ./scripts/add_rule.py --name DoTheThing --prefix F --code 999 --linter pyflakes
       - run: cargo check
-      - run: cargo fmt --all --check
       - run: |
           ./scripts/add_plugin.py test --url https://pypi.org/project/-test/0.1.0/ --prefix TST
           ./scripts/add_rule.py --name FirstRule --prefix TST --code 001 --linter test
       - run: cargo check
-      - run: cargo fmt --all --check
 
   ecosystem:
     name: "ecosystem"
@@ -662,7 +652,7 @@ jobs:
           branch: ${{ github.event.pull_request.base.ref }}
           workflow: "ci.yaml"
           check_artifacts: true
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
       - name: Fuzz
         env:
           FORCE_COLOR: 1
@@ -692,7 +682,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: cargo-bins/cargo-binstall@63aaa5c1932cebabc34eceda9d92a70215dcead6 # v1.12.3
+      - uses: cargo-bins/cargo-binstall@808dcb1b503398677d089d3216c51ac7cc11e7ab # v1.14.2
       - run: cargo binstall --no-confirm cargo-shear
       - run: cargo shear
 
@@ -709,11 +699,11 @@ jobs:
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: x64
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Prep README.md"
         run: python scripts/transform_readme.py --target pypi
       - name: "Build wheels"
-        uses: PyO3/maturin-action@aef21716ff3dcae8a1c301d23ec3e4446972a6e3 # v1.49.1
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
         with:
           args: --out dist
       - name: "Test wheel"
@@ -732,7 +722,11 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: 22
       - name: "Cache pre-commit"
         uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
@@ -762,7 +756,7 @@ jobs:
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: "3.13"
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Add SSH key"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
         uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
@@ -771,7 +765,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
       - name: Install uv
-        uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
       - name: "Install Insiders dependencies"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
         run: uv pip install -r docs/requirements-insiders.txt --system
@@ -801,7 +795,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Run checks"
@@ -820,7 +814,7 @@ jobs:
       - determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     steps:
-      - uses: extractions/setup-just@dd310ad5a97d8e7b41793f8ef055398d51ad4de6 # v2
+      - uses: extractions/setup-just@e33e0265a09d6d736e2ee1e0eb685ef1de4669ff # v3.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -871,7 +865,7 @@ jobs:
           persist-credentials: false
       - name: "Install Rust toolchain"
         run: rustup target add wasm32-unknown-unknown
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
@@ -891,7 +885,7 @@ jobs:
         run: npm run fmt:check
         working-directory: playground
 
-  benchmarks:
+  benchmarks-instrumented:
     runs-on: ubuntu-24.04
     needs: determine_changes
     if: ${{ github.repository == 'astral-sh/ruff' && !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
@@ -902,21 +896,55 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
 
       - name: "Install Rust toolchain"
         run: rustup show
 
       - name: "Install codspeed"
-        uses: taiki-e/install-action@86c23eed46c17b80677df6d8151545ce3e236c61 # v2
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
         with:
           tool: cargo-codspeed
 
       - name: "Build benchmarks"
-        run: cargo codspeed build --features codspeed -p ruff_benchmark
+        run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark
 
       - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@0010eb0ca6e89b80c88e8edaaa07cfe5f3e6664d # v3.5.0
+        uses: CodSpeedHQ/action@0b6e7a3d96c9d2a6057e7bcea6b45aaf2f7ce60b # v3.8.0
+        with:
+          run: cargo codspeed run
+          token: ${{ secrets.CODSPEED_TOKEN }}
+
+  benchmarks-walltime:
+    runs-on: codspeed-macro
+    needs: determine_changes
+    if: ${{ github.repository == 'astral-sh/ruff' && !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.ty == 'true' || github.ref == 'refs/heads/main') }}
+    timeout-minutes: 20
+    env:
+      TY_LOG: ruff_benchmark=debug
+    steps:
+      - name: "Checkout Branch"
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
+
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+
+      - name: "Install Rust toolchain"
+        run: rustup show
+
+      - name: "Install codspeed"
+        uses: taiki-e/install-action@c99cc51b309eee71a866715cfa08c922f11cf898 # v2.56.19
+        with:
+          tool: cargo-codspeed
+
+      - name: "Build benchmarks"
+        run: cargo codspeed build --features "codspeed,walltime" --no-default-features -p ruff_benchmark
+
+      - name: "Run benchmarks"
+        uses: CodSpeedHQ/action@0b6e7a3d96c9d2a6057e7bcea6b45aaf2f7ce60b # v3.8.0
         with:
           run: cargo codspeed run
           token: ${{ secrets.CODSPEED_TOKEN }}

.github/workflows/daily_fuzz.yaml

@@ -34,12 +34,12 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
       - name: "Install Rust toolchain"
         run: rustup show
       - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
       - name: Build ruff
         # A debug build means the script runs slower once it gets started,
         # but this is outweighed by the fact that a release build takes *much* longer to compile in CI

.github/workflows/daily_property_tests.yaml

@@ -1,72 +0,0 @@
-name: Daily property test run
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "0 12 * * *"
-  pull_request:
-    paths:
-      - ".github/workflows/daily_property_tests.yaml"
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_NET_RETRY: 10
-  CARGO_TERM_COLOR: always
-  RUSTUP_MAX_RETRIES: 10
-  FORCE_COLOR: 1
-
-jobs:
-  property_tests:
-    name: Property tests
-    runs-on: ubuntu-latest
-    timeout-minutes: 20
-    # Don't run the cron job on forks:
-    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@e16410e7f8d9e167b74ad5697a9089a35126eb50 # v1
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
-      - name: Build ty
-        # A release build takes longer (2 min vs 1 min), but the property tests run much faster in release
-        # mode (1.5 min vs 14 min), so the overall time is shorter with a release build.
-        run: cargo build --locked --release --package ty_python_semantic --tests
-      - name: Run property tests
-        shell: bash
-        run: |
-          export QUICKCHECK_TESTS=100000
-          for _ in {1..5}; do
-            cargo test --locked --release --package ty_python_semantic -- --ignored list::property_tests
-            cargo test --locked --release --package ty_python_semantic -- --ignored types::property_tests::stable
-          done
-
-  create-issue-on-failure:
-    name: Create an issue if the daily property test run surfaced any bugs
-    runs-on: ubuntu-latest
-    needs: property_tests
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.property_tests.result == 'failure' }}
-    permissions:
-      issues: write
-    steps:
-      - uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            await github.rest.issues.create({
-              owner: "astral-sh",
-              repo: "ruff",
-              title: `Daily property test run failed on ${new Date().toDateString()}`,
-              body: "Run listed here: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
-              labels: ["bug", "ty", "testing"],
-            })

.github/workflows/mypy_primer.yaml

@@ -11,6 +11,8 @@ on:
       - "crates/ruff_python_parser"
       - ".github/workflows/mypy_primer.yaml"
       - ".github/workflows/mypy_primer_comment.yaml"
+      - "Cargo.lock"
+      - "!**.md"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
@@ -36,9 +38,9 @@ jobs:
           persist-credentials: false
 
       - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
 
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           workspaces: "ruff"
 
@@ -47,41 +49,13 @@ jobs:
 
       - name: Run mypy_primer
         shell: bash
+        env:
+          PRIMER_SELECTOR: crates/ty_python_semantic/resources/primer/good.txt
+          DIFF_FILE: mypy_primer.diff
         run: |
           cd ruff
-
-          PRIMER_SELECTOR="$(paste -s -d'|' crates/ty_python_semantic/resources/primer/good.txt)"
-
-          echo "new commit"
-          git rev-list --format=%s --max-count=1 "$GITHUB_SHA"
-
-          MERGE_BASE="$(git merge-base "$GITHUB_SHA" "origin/$GITHUB_BASE_REF")"
-          git checkout -b base_commit "$MERGE_BASE"
-          echo "base commit"
-          git rev-list --format=%s --max-count=1 base_commit
-
-          cd ..
-
-          echo "Project selector: $PRIMER_SELECTOR"
-          # Allow the exit code to be 0 or 1, only fail for actual mypy_primer crashes/bugs
-          uvx \
-            --from="git+https://github.com/hauntsaninja/mypy_primer@4b15cf3b07db69db67bbfaebfffb2a8a28040933" \
-            mypy_primer \
-            --repo ruff \
-            --type-checker ty \
-            --old base_commit \
-            --new "$GITHUB_SHA" \
-            --project-selector "/($PRIMER_SELECTOR)\$" \
-            --output concise \
-            --debug > mypy_primer.diff || [ $? -eq 1 ]
-
-          # Output diff with ANSI color codes
-          cat mypy_primer.diff
-
-          # Remove ANSI color codes before uploading
-          sed -ie 's/\x1b\[[0-9;]*m//g' mypy_primer.diff
-
-          echo ${{ github.event.number }} > pr-number
+          scripts/mypy_primer.sh
+          echo ${{ github.event.number }} > ../pr-number
 
       - name: Upload diff
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
@@ -94,3 +68,41 @@ jobs:
         with:
           name: pr-number
           path: pr-number
+
+  memory_usage:
+    name: Run memory statistics
+    runs-on: depot-ubuntu-22.04-32
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: ruff
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+
+      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+        with:
+          workspaces: "ruff"
+
+      - name: Install Rust toolchain
+        run: rustup show
+
+      - name: Run mypy_primer
+        shell: bash
+        env:
+          TY_MAX_PARALLELISM: 1 # for deterministic memory numbers
+          TY_MEMORY_REPORT: mypy_primer
+          PRIMER_SELECTOR: crates/ty_python_semantic/resources/primer/memory.txt
+          DIFF_FILE: mypy_primer_memory.diff
+        run: |
+          cd ruff
+          scripts/mypy_primer.sh
+
+      - name: Upload diff
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: mypy_primer_memory_diff
+          path: mypy_primer_memory.diff

.github/workflows/mypy_primer_comment.yaml

@@ -45,15 +45,28 @@ jobs:
           if_no_artifact_found: ignore
           allow_forks: true
 
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download mypy_primer memory results"
+        id: download-mypy_primer_memory_diff
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: mypy_primer_memory_diff
+          workflow: mypy_primer.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/mypy_primer_memory_diff
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
       - name: Generate comment content
         id: generate-comment
-        if: steps.download-mypy_primer_diff.outputs.found_artifact == 'true'
+        if: ${{ steps.download-mypy_primer_diff.outputs.found_artifact == 'true' && steps.download-mypy_primer_memory_diff.outputs.found_artifact == 'true' }}
         run: |
           # Guard against malicious mypy_primer results that symlink to a secret
           # file on this runner
-          if [[ -L pr/mypy_primer_diff/mypy_primer.diff ]]
+          if [[ -L pr/mypy_primer_diff/mypy_primer.diff ]] || [[ -L pr/mypy_primer_memory_diff/mypy_primer_memory.diff ]]
           then
-              echo "Error: mypy_primer.diff cannot be a symlink"
+              echo "Error: mypy_primer.diff and mypy_primer_memory.diff cannot be a symlink"
               exit 1
           fi
 
@@ -74,12 +87,24 @@ jobs:
             echo 'No ecosystem changes detected ✅' >> comment.txt
           fi
 
+          if [ -s "pr/mypy_primer_memory_diff/mypy_primer_memory.diff" ]; then
+            echo '<details>' >> comment.txt
+            echo '<summary>Memory usage changes were detected when running on open source projects</summary>' >> comment.txt
+            echo '' >> comment.txt
+            echo '```diff' >> comment.txt
+            cat pr/mypy_primer_memory_diff/mypy_primer_memory.diff >> comment.txt
+            echo '```' >> comment.txt
+            echo '</details>' >> comment.txt
+          else
+            echo 'No memory usage changes detected ✅' >> comment.txt
+          fi
+
           echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
           cat comment.txt >> "$GITHUB_OUTPUT"
           echo 'EOF' >> "$GITHUB_OUTPUT"
 
       - name: Find existing comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
         if: steps.generate-comment.outcome == 'success'
         id: find-comment
         with:

.github/workflows/pr-comment.yaml

@@ -70,7 +70,7 @@ jobs:
           echo 'EOF' >> "$GITHUB_OUTPUT"
 
       - name: Find existing comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
         if: steps.generate-comment.outcome == 'success'
         id: find-comment
         with:

.github/workflows/publish-docs.yml

@@ -68,7 +68,7 @@ jobs:
       - name: "Install Rust toolchain"
         run: rustup show
 
-      - uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
 
       - name: "Install Insiders dependencies"
         if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}

.github/workflows/publish-pypi.yml

@@ -22,7 +22,7 @@ jobs:
       id-token: write
     steps:
       - name: "Install uv"
-        uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
       - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           pattern: wheels-*

.github/workflows/release.yml

@@ -61,7 +61,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
         with:
           persist-credentials: false
           submodules: recursive
@@ -124,7 +124,7 @@ jobs:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       BUILD_MANIFEST_NAME: target/distrib/global-dist-manifest.json
     steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
         with:
           persist-credentials: false
           submodules: recursive
@@ -175,7 +175,7 @@ jobs:
     outputs:
       val: ${{ steps.host.outputs.manifest }}
     steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
         with:
           persist-credentials: false
           submodules: recursive
@@ -251,7 +251,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@85e6279cec87321a52edac9c87bce653a07cf6c2
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/sync_typeshed.yaml

@@ -1,5 +1,25 @@
 name: Sync typeshed
 
+# How this works:
+#
+# 1. A Linux worker:
+#    a. Checks out Ruff and typeshed
+#    b. Deletes the vendored typeshed stdlib stubs from Ruff
+#    c. Copies the latest versions of the stubs from typeshed
+#    d. Uses docstring-adder to sync all docstrings available on Linux
+#    e. Creates a new branch on the upstream astral-sh/ruff repository
+#    f. Commits the changes it's made and pushes them to the new upstream branch
+# 2. Once the Linux worker is done, a Windows worker:
+#    a. Checks out the branch created by the Linux worker
+#    b. Syncs all docstrings available on Windows that are not available on Linux
+#    c. Commits the changes and pushes them to the same upstream branch
+# 3. Once the Windows worker is done, a MacOS worker:
+#    a. Checks out the branch created by the Linux worker
+#    b. Syncs all docstrings available on MacOS that are not available on Linux or Windows
+#    c. Commits the changes and pushes them to the same upstream branch
+#    d. Creates a PR against the `main` branch using the branch all three workers have pushed to
+# 4. If any of steps 1-3 failed, an issue is created in the `astral-sh/ruff` repository
+
 on:
   workflow_dispatch:
   schedule:
@@ -10,7 +30,17 @@ env:
   FORCE_COLOR: 1
   GH_TOKEN: ${{ github.token }}
 
+  # The name of the upstream branch that the first worker creates,
+  # and which all three workers push to.
+  UPSTREAM_BRANCH: typeshedbot/sync-typeshed
+
+  # The path to the directory that contains the vendored typeshed stubs,
+  # relative to the root of the Ruff repository.
+  VENDORED_TYPESHED: crates/ty_vendored/vendor/typeshed
+
 jobs:
+  # Sync typeshed stubs, and sync all docstrings available on Linux.
+  # Push the changes to a new branch on the upstream repository.
   sync:
     name: Sync typeshed
     runs-on: ubuntu-latest
@@ -19,7 +49,6 @@ jobs:
     if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
     permissions:
       contents: write
-      pull-requests: write
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         name: Checkout Ruff
@@ -36,37 +65,130 @@ jobs:
         run: |
           git config --global user.name typeshedbot
           git config --global user.email '<>'
-      - name: Sync typeshed
-        id: sync
-        run: |
-          rm -rf ruff/crates/ty_vendored/vendor/typeshed
-          mkdir ruff/crates/ty_vendored/vendor/typeshed
-          cp typeshed/README.md ruff/crates/ty_vendored/vendor/typeshed
-          cp typeshed/LICENSE ruff/crates/ty_vendored/vendor/typeshed
-          cp -r typeshed/stdlib ruff/crates/ty_vendored/vendor/typeshed/stdlib
-          rm -rf ruff/crates/ty_vendored/vendor/typeshed/stdlib/@tests
-          git -C typeshed rev-parse HEAD > ruff/crates/ty_vendored/vendor/typeshed/source_commit.txt
-      - name: Commit the changes
-        id: commit
-        if: ${{ steps.sync.outcome == 'success' }}
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+      - name: Sync typeshed stubs
         run: |
+          rm -rf "ruff/${VENDORED_TYPESHED}"
+          mkdir "ruff/${VENDORED_TYPESHED}"
+          cp typeshed/README.md "ruff/${VENDORED_TYPESHED}"
+          cp typeshed/LICENSE "ruff/${VENDORED_TYPESHED}"
+
+          # The pyproject.toml file is needed by a later job for the black configuration.
+          # It's deleted before creating the PR.
+          cp typeshed/pyproject.toml "ruff/${VENDORED_TYPESHED}"
+
+          cp -r typeshed/stdlib "ruff/${VENDORED_TYPESHED}/stdlib"
+          rm -rf "ruff/${VENDORED_TYPESHED}/stdlib/@tests"
+          git -C typeshed rev-parse HEAD > "ruff/${VENDORED_TYPESHED}/source_commit.txt"
           cd ruff
-          git checkout -b typeshedbot/sync-typeshed
+          git checkout -b "${UPSTREAM_BRANCH}"
           git add .
-          git diff --staged --quiet || git commit -m "Sync typeshed. Source commit: https://github.com/python/typeshed/commit/$(git -C ../typeshed rev-parse HEAD)"
-      - name: Create a PR
-        if: ${{ steps.sync.outcome == 'success' && steps.commit.outcome == 'success' }}
+          git commit -m "Sync typeshed. Source commit: https://github.com/python/typeshed/commit/$(git -C ../typeshed rev-parse HEAD)" --allow-empty
+      - name: Sync Linux docstrings
+        if: ${{ success() }}
         run: |
           cd ruff
-          git push --force origin typeshedbot/sync-typeshed
-          gh pr list --repo "$GITHUB_REPOSITORY" --head typeshedbot/sync-typeshed --json id --jq length | grep 1 && exit 0 # exit if there is existing pr
-          gh pr create --title "Sync vendored typeshed stubs" --body "Close and reopen this PR to trigger CI" --label "internal"
+          ./scripts/codemod_docstrings.sh
+          git commit -am "Sync Linux docstrings" --allow-empty
+      - name: Push the changes
+        id: commit
+        if: ${{ success() }}
+        run: git -C ruff push --force --set-upstream origin "${UPSTREAM_BRANCH}"
+
+  # Checkout the branch created by the sync job,
+  # and sync all docstrings available on Windows that are not available on Linux.
+  # Commit the changes and push them to the same branch.
+  docstrings-windows:
+    runs-on: windows-latest
+    timeout-minutes: 20
+    needs: [sync]
+
+    # Don't run the cron job on forks.
+    # The job will also be skipped if the sync job failed, because it's specified in `needs` above,
+    # and we haven't used `always()` in the `if` condition here
+    # (https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#example-requiring-successful-dependent-jobs)
+    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
+
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        name: Checkout Ruff
+        with:
+          persist-credentials: true
+          ref: ${{ env.UPSTREAM_BRANCH}}
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+      - name: Setup git
+        run: |
+          git config --global user.name typeshedbot
+          git config --global user.email '<>'
+      - name: Sync Windows docstrings
+        id: docstrings
+        shell: bash
+        run: ./scripts/codemod_docstrings.sh
+      - name: Commit the changes
+        if: ${{ steps.docstrings.outcome == 'success' }}
+        run: |
+          git commit -am "Sync Windows docstrings" --allow-empty
+          git push
+
+  # Checkout the branch created by the sync job,
+  # and sync all docstrings available on macOS that are not available on Linux or Windows.
+  # Push the changes to the same branch and create a PR against the `main` branch using that branch.
+  docstrings-macos-and-pr:
+    runs-on: macos-latest
+    timeout-minutes: 20
+    needs: [sync, docstrings-windows]
+
+    # Don't run the cron job on forks.
+    # The job will also be skipped if the sync or docstrings-windows jobs failed,
+    # because they're specified in `needs` above and we haven't used an `always()` condition in the `if` here
+    # (https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#example-requiring-successful-dependent-jobs)
+    if: ${{ github.repository == 'astral-sh/ruff' || github.event_name != 'schedule' }}
+
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        name: Checkout Ruff
+        with:
+          persist-credentials: true
+          ref: ${{ env.UPSTREAM_BRANCH}}
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+      - name: Setup git
+        run: |
+          git config --global user.name typeshedbot
+          git config --global user.email '<>'
+      - name: Sync macOS docstrings
+        run: ./scripts/codemod_docstrings.sh
+      - name: Commit and push the changes
+        if: ${{ success() }}
+        run: |
+          git commit -am "Sync macOS docstrings" --allow-empty
+
+          # Here we just reformat the codemodded stubs so that they are
+          # consistent with the other typeshed stubs around them.
+          # Typeshed formats code using black in their CI, so we just invoke
+          # black on the stubs the same way that typeshed does.
+          uvx black "${VENDORED_TYPESHED}/stdlib" --config "${VENDORED_TYPESHED}/pyproject.toml" || true
+          git commit -am "Format codemodded docstrings" --allow-empty
+
+          rm "${VENDORED_TYPESHED}/pyproject.toml"
+          git commit -am "Remove pyproject.toml file"
+
+          git push
+      - name: Create a PR
+        if: ${{ success() }}
+        run: |
+          gh pr list --repo "${GITHUB_REPOSITORY}" --head "${UPSTREAM_BRANCH}" --json id --jq length | grep 1 && exit 0 # exit if there is existing pr
+          gh pr create --title "[ty] Sync vendored typeshed stubs" --body "Close and reopen this PR to trigger CI" --label "ty"
 
   create-issue-on-failure:
     name: Create an issue if the typeshed sync failed
     runs-on: ubuntu-latest
-    needs: [sync]
-    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && needs.sync.result == 'failure' }}
+    needs: [sync, docstrings-windows, docstrings-macos-and-pr]
+    if: ${{ github.repository == 'astral-sh/ruff' && always() && github.event_name == 'schedule' && (needs.sync.result == 'failure' || needs.docstrings-windows.result == 'failure' || needs.docstrings-macos-and-pr.result == 'failure') }}
     permissions:
       issues: write
     steps:

.github/workflows/ty-ecosystem-analyzer.yaml

@@ -0,0 +1,138 @@
+name: ty ecosystem-analyzer
+
+permissions: {}
+
+on:
+  pull_request:
+    types: [labeled]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+  RUST_BACKTRACE: 1
+  REF_NAME: ${{ github.ref_name }}
+  CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
+
+jobs:
+  ty-ecosystem-analyzer:
+    name: Compute diagnostic diff
+    runs-on: depot-ubuntu-22.04-32
+    timeout-minutes: 20
+    if: contains(github.event.label.name, 'ecosystem-analyzer')
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: ruff
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        with:
+          workspaces: "ruff"
+
+      - name: Install Rust toolchain
+        run: rustup show
+
+      - name: Compute diagnostic diff
+        shell: bash
+        run: |
+          cd ruff
+
+          echo "Enabling configuration overloads (see .github/mypy-primer-ty.toml)"
+          mkdir -p ~/.config/ty
+          cp .github/mypy-primer-ty.toml ~/.config/ty/ty.toml
+
+          echo "new commit"
+          git checkout -b new_commit "$GITHUB_SHA"
+          git rev-list --format=%s --max-count=1 new_commit
+          cp crates/ty_python_semantic/resources/primer/good.txt projects_new.txt
+
+          echo "old commit (merge base)"
+          MERGE_BASE="$(git merge-base "$GITHUB_SHA" "origin/$GITHUB_BASE_REF")"
+          git checkout -b old_commit "$MERGE_BASE"
+          git rev-list --format=%s --max-count=1 old_commit
+          cp crates/ty_python_semantic/resources/primer/good.txt projects_old.txt
+
+          cd ..
+
+          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@27dd66d9e397d986ef9c631119ee09556eab8af9"
+
+          ecosystem-analyzer \
+            --repository ruff \
+            diff \
+            --projects-old ruff/projects_old.txt \
+            --projects-new ruff/projects_new.txt \
+            --old old_commit \
+            --new new_commit \
+            --output-old diagnostics-old.json \
+            --output-new diagnostics-new.json
+
+          mkdir dist
+
+          ecosystem-analyzer \
+            generate-diff \
+            diagnostics-old.json \
+            diagnostics-new.json \
+            --old-name "main (merge base)" \
+            --new-name "$REF_NAME" \
+            --output-html dist/diff.html
+
+          ecosystem-analyzer \
+            generate-diff-statistics \
+            diagnostics-old.json \
+            diagnostics-new.json \
+            --old-name "main (merge base)" \
+            --new-name "$REF_NAME" \
+            --output diff-statistics.md
+
+          echo '## `ecosystem-analyzer` results' > comment.md
+          echo >> comment.md
+          cat diff-statistics.md >> comment.md
+
+          cat diff-statistics.md >> "$GITHUB_STEP_SUMMARY"
+
+          echo ${{ github.event.number }} > pr-number
+
+      - name: "Deploy to Cloudflare Pages"
+        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
+        id: deploy
+        uses: cloudflare/wrangler-action@da0e0dfe58b7a431659754fdf3f186c529afbe65 # v3.14.1
+        with:
+          apiToken: ${{ secrets.CF_API_TOKEN }}
+          accountId: ${{ secrets.CF_ACCOUNT_ID }}
+          command: pages deploy dist --project-name=ty-ecosystem --branch ${{ github.head_ref }} --commit-hash ${GITHUB_SHA}
+
+      - name: "Append deployment URL"
+        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
+        env:
+          DEPLOYMENT_URL: ${{ steps.deploy.outputs.pages-deployment-alias-url }}
+        run: |
+          echo >> comment.md
+          echo "**[Full report with detailed diff]($DEPLOYMENT_URL/diff)**" >> comment.md
+
+      - name: Upload comment
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: comment.md
+          path: comment.md
+
+      - name: Upload pr-number
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: pr-number
+          path: pr-number
+
+      - name: Upload diagnostics diff
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: diff.html
+          path: dist/diff.html

.github/workflows/ty-ecosystem-analyzer_comment.yaml

@@ -0,0 +1,85 @@
+name: PR comment (ty ecosystem-analyzer)
+
+on: # zizmor: ignore[dangerous-triggers]
+  workflow_run:
+    workflows: [ty ecosystem-analyzer]
+    types: [completed]
+  workflow_dispatch:
+    inputs:
+      workflow_run_id:
+        description: The ty ecosystem-analyzer workflow that triggers the workflow run
+        required: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-24.04
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download PR number
+        with:
+          name: pr-number
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Parse pull request number
+        id: pr-number
+        run: |
+          if [[ -f pr-number ]]
+          then
+            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+          fi
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download comment.md"
+        id: download-comment
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: comment.md
+          workflow: ty-ecosystem-analyzer.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/comment
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Generate comment content
+        id: generate-comment
+        if: ${{ steps.download-comment.outputs.found_artifact == 'true' }}
+        run: |
+          # Guard against malicious ty ecosystem-analyzer results that symlink to a secret
+          # file on this runner
+          if [[ -L pr/comment/comment.md ]]
+          then
+              echo "Error: comment.md cannot be a symlink"
+              exit 1
+          fi
+
+          # Note: this identifier is used to find the comment to update on subsequent runs
+          echo '<!-- generated-comment ty ecosystem-analyzer -->' > comment.md
+          echo >> comment.md
+          cat pr/comment/comment.md >> comment.md
+
+          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
+          cat comment.md >> "$GITHUB_OUTPUT"
+          echo 'EOF' >> "$GITHUB_OUTPUT"
+
+      - name: Find existing comment
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        if: steps.generate-comment.outcome == 'success'
+        id: find-comment
+        with:
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "<!-- generated-comment ty ecosystem-analyzer -->"
+
+      - name: Create or update comment
+        if: steps.find-comment.outcome == 'success'
+        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          body-path: comment.md
+          edit-mode: replace

.github/workflows/ty-ecosystem-report.yaml

@@ -0,0 +1,76 @@
+name: ty ecosystem-report
+
+permissions: {}
+
+on:
+  workflow_dispatch:
+  schedule:
+    # Run every Wednesday at 5:00 UTC:
+    - cron: 0 5 * * 3
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+  RUST_BACKTRACE: 1
+  CF_API_TOKEN_EXISTS: ${{ secrets.CF_API_TOKEN != '' }}
+
+jobs:
+  ty-ecosystem-report:
+    name: Create ecosystem report
+    runs-on: depot-ubuntu-22.04-32
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: ruff
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        with:
+          workspaces: "ruff"
+
+      - name: Install Rust toolchain
+        run: rustup show
+
+      - name: Create report
+        shell: bash
+        run: |
+          cd ruff
+
+          echo "Enabling configuration overloads (see .github/mypy-primer-ty.toml)"
+          mkdir -p ~/.config/ty
+          cp .github/mypy-primer-ty.toml ~/.config/ty/ty.toml
+
+          cd ..
+
+          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@27dd66d9e397d986ef9c631119ee09556eab8af9"
+
+          ecosystem-analyzer \
+            --verbose \
+            --repository ruff \
+            analyze \
+            --projects ruff/crates/ty_python_semantic/resources/primer/good.txt \
+            --output ecosystem-diagnostics.json
+
+          mkdir dist
+
+          ecosystem-analyzer \
+            generate-report \
+            --max-diagnostics-per-project=1200 \
+            ecosystem-diagnostics.json \
+            --output dist/index.html
+
+      - name: "Deploy to Cloudflare Pages"
+        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
+        id: deploy
+        uses: cloudflare/wrangler-action@da0e0dfe58b7a431659754fdf3f186c529afbe65 # v3.14.1
+        with:
+          apiToken: ${{ secrets.CF_API_TOKEN }}
+          accountId: ${{ secrets.CF_ACCOUNT_ID }}
+          command: pages deploy dist --project-name=ty-ecosystem --branch main --commit-hash ${GITHUB_SHA}

.github/workflows/typing_conformance.yaml

@@ -0,0 +1,109 @@
+name: Run typing conformance
+
+permissions: {}
+
+on:
+  pull_request:
+    paths:
+      - "crates/ty*/**"
+      - "crates/ruff_db"
+      - "crates/ruff_python_ast"
+      - "crates/ruff_python_parser"
+      - ".github/workflows/typing_conformance.yaml"
+      - ".github/workflows/typing_conformance_comment.yaml"
+      - "Cargo.lock"
+      - "!**.md"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  CARGO_TERM_COLOR: always
+  RUSTUP_MAX_RETRIES: 10
+  RUST_BACKTRACE: 1
+
+jobs:
+  typing_conformance:
+    name: Compute diagnostic diff
+    runs-on: depot-ubuntu-22.04-32
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: ruff
+          fetch-depth: 0
+          persist-credentials: false
+
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          repository: python/typing
+          ref: d4f39b27a4a47aac8b6d4019e1b0b5b3156fabdc
+          path: typing
+          persist-credentials: false
+
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
+
+      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        with:
+          workspaces: "ruff"
+
+      - name: Install Rust toolchain
+        run: rustup show
+
+      - name: Compute diagnostic diff
+        shell: bash
+        run: |
+          RUFF_DIR="$GITHUB_WORKSPACE/ruff"
+
+          # Build the executable for the old and new commit
+          (
+            cd ruff
+
+            echo "new commit"
+            git checkout -b new_commit "${{ github.event.pull_request.head.sha }}"
+            git rev-list --format=%s --max-count=1 new_commit
+            cargo build --release --bin ty
+            mv target/release/ty ty-new
+
+            echo "old commit (merge base)"
+            MERGE_BASE="$(git merge-base "$GITHUB_SHA" "origin/$GITHUB_BASE_REF")"
+            git checkout -b old_commit "$MERGE_BASE"
+            git rev-list --format=%s --max-count=1 old_commit
+            cargo build --release --bin ty
+            mv target/release/ty ty-old
+          )
+
+          (
+            cd typing/conformance/tests
+
+            echo "Running ty on old commit (merge base)"
+            "$RUFF_DIR/ty-old" check --color=never --output-format=concise . > "$GITHUB_WORKSPACE/old-output.txt" 2>&1 || true
+
+            echo "Running ty on new commit"
+            "$RUFF_DIR/ty-new" check --color=never --output-format=concise . > "$GITHUB_WORKSPACE/new-output.txt" 2>&1 || true
+          )
+
+          if ! diff -u old-output.txt new-output.txt > typing_conformance_diagnostics.diff; then
+            echo "Differences found between base and PR"
+          else
+            echo "No differences found"
+            touch typing_conformance_diagnostics.diff
+          fi
+
+          echo ${{ github.event.number }} > pr-number
+
+      - name: Upload diff
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: typing_conformance_diagnostics_diff
+          path: typing_conformance_diagnostics.diff
+
+      - name: Upload pr-number
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: pr-number
+          path: pr-number

.github/workflows/typing_conformance_comment.yaml

@@ -0,0 +1,97 @@
+name: PR comment (typing_conformance)
+
+on: # zizmor: ignore[dangerous-triggers]
+  workflow_run:
+    workflows: [Run typing conformance]
+    types: [completed]
+  workflow_dispatch:
+    inputs:
+      workflow_run_id:
+        description: The typing_conformance workflow that triggers the workflow run
+        required: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-24.04
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download PR number
+        with:
+          name: pr-number
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Parse pull request number
+        id: pr-number
+        run: |
+          if [[ -f pr-number ]]
+          then
+            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+          fi
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download typing_conformance results"
+        id: download-typing_conformance_diff
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: typing_conformance_diagnostics_diff
+          workflow: typing_conformance.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/typing_conformance_diagnostics_diff
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Generate comment content
+        id: generate-comment
+        if: ${{ steps.download-typing_conformance_diff.outputs.found_artifact == 'true' }}
+        run: |
+          # Guard against malicious typing_conformance results that symlink to a secret
+          # file on this runner
+          if [[ -L pr/typing_conformance_diagnostics_diff/typing_conformance_diagnostics.diff ]]
+          then
+              echo "Error: typing_conformance_diagnostics.diff cannot be a symlink"
+              exit 1
+          fi
+
+          # Note this identifier is used to find the comment to update on
+          # subsequent runs
+          echo '<!-- generated-comment typing_conformance_diagnostics_diff -->' >> comment.txt
+
+          echo '## Diagnostic diff on typing conformance tests' >> comment.txt
+          if [ -s "pr/typing_conformance_diagnostics_diff/typing_conformance_diagnostics.diff" ]; then
+            echo '<details>' >> comment.txt
+            echo '<summary>Changes were detected when running ty on typing conformance tests</summary>' >> comment.txt
+            echo '' >> comment.txt
+            echo '```diff' >> comment.txt
+            cat pr/typing_conformance_diagnostics_diff/typing_conformance_diagnostics.diff >> comment.txt
+            echo '```' >> comment.txt
+            echo '</details>' >> comment.txt
+          else
+            echo 'No changes detected when running ty on typing conformance tests ✅' >> comment.txt
+          fi
+
+          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
+          cat comment.txt >> "$GITHUB_OUTPUT"
+          echo 'EOF' >> "$GITHUB_OUTPUT"
+
+      - name: Find existing comment
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        if: steps.generate-comment.outcome == 'success'
+        id: find-comment
+        with:
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "<!-- generated-comment typing_conformance_diagnostics_diff -->"
+
+      - name: Create or update comment
+        if: steps.find-comment.outcome == 'success'
+        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          body-path: comment.txt
+          edit-mode: replace

.github/zizmor.yml

@@ -10,6 +10,8 @@ rules:
     ignore:
       - build-docker.yml
       - publish-playground.yml
+      - ty-ecosystem-analyzer.yaml
+      - ty-ecosystem-report.yaml
   excessive-permissions:
     # it's hard to test what the impact of removing these ignores would be
     # without actually running the release workflow...

.markdownlint.yaml

@@ -29,3 +29,7 @@ MD024:
 #
 # Ref: https://github.com/astral-sh/ruff/pull/15011#issuecomment-2544790854
 MD046: false
+
+# Link text should be descriptive
+# Disallows link text like *here* which is annoying.
+MD059: false

.pre-commit-config.yaml

@@ -5,6 +5,8 @@ exclude: |
     .github/workflows/release.yml|
     crates/ty_vendored/vendor/.*|
     crates/ty_project/resources/.*|
+    crates/ty_python_semantic/resources/corpus/.*|
+    crates/ty/docs/(configuration|rules|cli|environment).md|
     crates/ruff_benchmark/resources/.*|
     crates/ruff_linter/resources/.*|
     crates/ruff_linter/src/rules/.*/snapshots/.*|
@@ -42,7 +44,7 @@ repos:
           )$
 
   - repo: https://github.com/igorshubovych/markdownlint-cli
-    rev: v0.44.0
+    rev: v0.45.0
     hooks:
       - id: markdownlint-fix
         exclude: |
@@ -65,7 +67,7 @@ repos:
           - black==25.1.0
 
   - repo: https://github.com/crate-ci/typos
-    rev: v1.32.0
+    rev: v1.34.0
     hooks:
       - id: typos
 
@@ -79,17 +81,17 @@ repos:
         pass_filenames: false # This makes it a lot faster
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.11.8
+    rev: v0.12.5
     hooks:
       - id: ruff-format
-      - id: ruff
+      - id: ruff-check
         args: [--fix, --exit-non-zero-on-fix]
         types_or: [python, pyi]
         require_serial: true
 
   # Prettier
   - repo: https://github.com/rbubley/mirrors-prettier
-    rev: v3.5.3
+    rev: v3.6.2
     hooks:
       - id: prettier
         types: [yaml]
@@ -97,12 +99,12 @@ repos:
   # zizmor detects security vulnerabilities in GitHub Actions workflows.
   # Additional configuration for the tool is found in `.github/zizmor.yml`
   - repo: https://github.com/woodruffw/zizmor-pre-commit
-    rev: v1.6.0
+    rev: v1.11.0
     hooks:
       - id: zizmor
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.33.0
+    rev: 0.33.2
     hooks:
       - id: check-github-workflows
 
@@ -126,5 +128,10 @@ repos:
           # but the integration only works if shellcheck is installed
           - "github.com/wasilibs/go-shellcheck/cmd/shellcheck@v0.10.0"
 
+  - repo: https://github.com/shellcheck-py/shellcheck-py
+    rev: v0.10.0.1
+    hooks:
+      - id: shellcheck
+
 ci:
   skip: [cargo-fmt, dev-generate-all]

BREAKING_CHANGES.md

@@ -1,5 +1,39 @@
 # Breaking Changes
 
+## 0.12.0
+
+- **Detection of more syntax errors**
+
+    Ruff now detects version-related syntax errors, such as the use of the `match`
+    statement on Python versions before 3.10, and syntax errors emitted by
+    CPython's compiler, such as irrefutable `match` patterns before the final
+    `case` arm.
+
+- **New default Python version handling for syntax errors**
+
+    Ruff will default to the _latest_ supported Python version (3.13) when
+    checking for the version-related syntax errors mentioned above to prevent
+    false positives in projects without a Python version configured. The default
+    in all other cases, like applying lint rules, is unchanged and remains at the
+    minimum supported Python version (3.9).
+
+- **Updated f-string formatting**
+
+    Ruff now formats multi-line f-strings with format specifiers to avoid adding a
+    line break after the format specifier. This addresses a change to the Python
+    grammar in version 3.13.4 that made such a line break a syntax error.
+
+- **`rust-toolchain.toml` is no longer included in source distributions**
+
+    The `rust-toolchain.toml` is used to specify a higher Rust version than Ruff's
+    minimum supported Rust version (MSRV) for development and building release
+    artifacts. However, when present in source distributions, it would also cause
+    downstream package maintainers to pull in the same Rust toolchain, even if
+    their available toolchain was MSRV-compatible.
+
+- **[`suspicious-xmle-tree-usage`](https://docs.astral.sh/ruff/rules/suspicious-xmle-tree-usage/)
+    (`S320`) has been removed**
+
 ## 0.11.0
 
 This is a follow-up to release 0.10.0. Because of a mistake in the release process, the `requires-python` inference changes were not included in that release. Ruff 0.11.0 now includes this change as well as the stabilization of the preview behavior for `PGH004`.

CONTRIBUTING.md

@@ -2,6 +2,11 @@
 
 Welcome! We're happy to have you here. Thank you in advance for your contribution to Ruff.
 
+> [!NOTE]
+>
+> This guide is for Ruff. If you're looking to contribute to ty, please see [the ty contributing
+> guide](https://github.com/astral-sh/ruff/blob/main/crates/ty/CONTRIBUTING.md).
+
 ## The Basics
 
 Ruff welcomes contributions in the form of pull requests.
@@ -261,6 +266,13 @@ Finally, regenerate the documentation and generated code with `cargo dev generat
 
 ## MkDocs
 
+> [!NOTE]
+>
+> The documentation uses Material for MkDocs Insiders, which is closed-source software.
+> This means only members of the Astral organization can preview the documentation exactly as it
+> will appear in production.
+> Outside contributors can still preview the documentation, but there will be some differences. Consult [the Material for MkDocs documentation](https://squidfunk.github.io/mkdocs-material/insiders/benefits/#features) for which features are exclusively available in the insiders version.
+
 To preview any changes to the documentation locally:
 
 1. Install the [Rust toolchain](https://www.rust-lang.org/tools/install).
@@ -310,6 +322,17 @@ even patch releases may contain [non-backwards-compatible changes](https://semve
     - Often labels will be missing from pull requests they will need to be manually organized into the proper section
     - Changes should be edited to be user-facing descriptions, avoiding internal details
 
+    Additionally, for minor releases:
+
+    - Move the existing contents of `CHANGELOG.md` to `changelogs/0.MINOR.x.md`,
+        where `MINOR` is the previous minor release (e.g. `11` when preparing
+        the 0.12.0 release)
+    - Reverse the entries to put the oldest version first (`0.MINOR.0` instead
+        of `0.MINOR.LATEST` as in the main changelog)
+        - Use the
+            [`reverse-changelog.py`](https://github.com/astral-sh/uv/blob/main/scripts/reverse-changelog.py)
+            script from the uv repo to do this automatically
+
 1. Highlight any breaking changes in `BREAKING_CHANGES.md`
 
 1. Run `cargo check`. This should update the lock file with new versions.
@@ -406,7 +429,7 @@ cargo install hyperfine
 To benchmark the release build:
 
 ```shell
-cargo build --release && hyperfine --warmup 10 \
+cargo build --release --bin ruff && hyperfine --warmup 10 \
   "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ --no-cache -e" \
   "./target/release/ruff check ./crates/ruff_linter/resources/test/cpython/ -e"
 
@@ -605,8 +628,7 @@ Then convert the recorded profile
 perf script -F +pid > /tmp/test.perf
 ```
 
-You can now view the converted file with [firefox profiler](https://profiler.firefox.com/), with a
-more in-depth guide [here](https://profiler.firefox.com/docs/#/./guide-perf-profiling)
+You can now view the converted file with [firefox profiler](https://profiler.firefox.com/). To learn more about Firefox profiler, read the [Firefox profiler profiling-guide](https://profiler.firefox.com/docs/#/./guide-perf-profiling).
 
 An alternative is to convert the perf data to `flamegraph.svg` using
 [flamegraph](https://github.com/flamegraph-rs/flamegraph) (`cargo install flamegraph`):

Cargo.toml

@@ -3,8 +3,9 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-edition = "2021"
-rust-version = "1.84"
+# Please update rustfmt.toml when bumping the Rust edition
+edition = "2024"
+rust-version = "1.86"
 homepage = "https://docs.astral.sh/ruff"
 documentation = "https://docs.astral.sh/ruff"
 repository = "https://github.com/astral-sh/ruff"
@@ -23,6 +24,7 @@ ruff_index = { path = "crates/ruff_index" }
 ruff_linter = { path = "crates/ruff_linter" }
 ruff_macros = { path = "crates/ruff_macros" }
 ruff_notebook = { path = "crates/ruff_notebook" }
+ruff_options_metadata = { path = "crates/ruff_options_metadata" }
 ruff_python_ast = { path = "crates/ruff_python_ast" }
 ruff_python_codegen = { path = "crates/ruff_python_codegen" }
 ruff_python_formatter = { path = "crates/ruff_python_formatter" }
@@ -37,10 +39,12 @@ ruff_source_file = { path = "crates/ruff_source_file" }
 ruff_text_size = { path = "crates/ruff_text_size" }
 ruff_workspace = { path = "crates/ruff_workspace" }
 
+ty = { path = "crates/ty" }
 ty_ide = { path = "crates/ty_ide" }
 ty_project = { path = "crates/ty_project", default-features = false }
 ty_python_semantic = { path = "crates/ty_python_semantic" }
 ty_server = { path = "crates/ty_server" }
+ty_static = { path = "crates/ty_static" }
 ty_test = { path = "crates/ty_test" }
 ty_vendored = { path = "crates/ty_vendored" }
 
@@ -48,33 +52,43 @@ aho-corasick = { version = "1.1.3" }
 anstream = { version = "0.6.18" }
 anstyle = { version = "1.0.10" }
 anyhow = { version = "1.0.80" }
+arc-swap = { version = "1.7.1" }
 assert_fs = { version = "1.1.0" }
 argfile = { version = "0.2.0" }
-bincode = { version = "1.3.3" }
+bincode = { version = "2.0.0" }
 bitflags = { version = "2.5.0" }
+bitvec = { version = "1.0.1", default-features = false, features = [
+    "alloc",
+] }
 bstr = { version = "1.9.1" }
 cachedir = { version = "0.3.1" }
 camino = { version = "1.1.7" }
 clap = { version = "4.5.3", features = ["derive"] }
 clap_complete_command = { version = "0.6.0" }
 clearscreen = { version = "4.0.0" }
-codspeed-criterion-compat = { version = "2.6.0", default-features = false }
+divan = { package = "codspeed-divan-compat", version = "3.0.2" }
+codspeed-criterion-compat = { version = "3.0.2", default-features = false }
 colored = { version = "3.0.0" }
 console_error_panic_hook = { version = "0.1.7" }
 console_log = { version = "1.0.0" }
 countme = { version = "3.0.1" }
 compact_str = "0.9.0"
-criterion = { version = "0.5.1", default-features = false }
+criterion = { version = "0.7.0", default-features = false }
 crossbeam = { version = "0.8.4" }
 dashmap = { version = "6.0.1" }
 dir-test = { version = "0.4.0" }
 dunce = { version = "1.0.5" }
 drop_bomb = { version = "0.1.5" }
-env_logger = { version = "0.11.0" }
 etcetera = { version = "0.10.0" }
 fern = { version = "0.7.0" }
 filetime = { version = "0.2.23" }
 getrandom = { version = "0.3.1" }
+get-size2 = { version = "0.6.0", features = [
+    "derive",
+    "smallvec",
+    "hashbrown",
+    "compact-str",
+] }
 glob = { version = "0.3.1" }
 globset = { version = "0.4.14" }
 globwalk = { version = "0.9.1" }
@@ -83,11 +97,12 @@ hashbrown = { version = "0.15.0", default-features = false, features = [
     "equivalent",
     "inline-more",
 ] }
+heck = "0.5.0"
 ignore = { version = "0.4.22" }
 imara-diff = { version = "0.1.5" }
 imperative = { version = "1.0.4" }
 indexmap = { version = "2.6.0" }
-indicatif = { version = "0.17.8" }
+indicatif = { version = "0.18.0" }
 indoc = { version = "2.0.4" }
 insta = { version = "1.35.1" }
 insta-cmd = { version = "0.6.0" }
@@ -96,7 +111,7 @@ is-wsl = { version = "0.4.0" }
 itertools = { version = "0.14.0" }
 jiff = { version = "0.2.0" }
 js-sys = { version = "0.3.69" }
-jod-thread = { version = "0.1.2" }
+jod-thread = { version = "1.0.0" }
 libc = { version = "0.2.153" }
 libcst = { version = "1.1.0", default-features = false }
 log = { version = "0.4.17" }
@@ -122,9 +137,11 @@ quote = { version = "1.0.23" }
 rand = { version = "0.9.0" }
 rayon = { version = "1.10.0" }
 regex = { version = "1.10.2" }
+regex-automata = { version = "0.4.9" }
 rustc-hash = { version = "2.0.0" }
+rustc-stable-hash = { version = "0.1.2" }
 # When updating salsa, make sure to also update the revision in `fuzz/Cargo.toml`
-salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "f78a641d2086695ac0ef96cbe915bf80b5a690f2" }
+salsa = { git = "https://github.com/salsa-rs/salsa", rev = "dba66f1a37acca014c2402f231ed5b361bd7d8fe" }
 schemars = { version = "0.8.16" }
 seahash = { version = "4.1.0" }
 serde = { version = "1.0.197", features = ["derive"] }
@@ -136,7 +153,7 @@ serde_with = { version = "3.6.0", default-features = false, features = [
 ] }
 shellexpand = { version = "3.0.0" }
 similar = { version = "2.4.0", features = ["inline"] }
-smallvec = { version = "1.13.2" }
+smallvec = { version = "1.13.2", features = ["union", "const_generics", "const_new"] }
 snapbox = { version = "0.6.0", features = [
     "diff",
     "term-svg",
@@ -151,16 +168,17 @@ tempfile = { version = "3.9.0" }
 test-case = { version = "3.3.1" }
 thiserror = { version = "2.0.0" }
 tikv-jemallocator = { version = "0.6.0" }
-toml = { version = "0.8.11" }
+toml = { version = "0.9.0" }
 tracing = { version = "0.1.40" }
 tracing-flame = { version = "0.2.0" }
-tracing-indicatif = { version = "0.3.6" }
+tracing-indicatif = { version = "0.3.11" }
 tracing-log = { version = "0.2.0" }
 tracing-subscriber = { version = "0.3.18", default-features = false, features = [
     "env-filter",
     "fmt",
+    "ansi",
+    "smallvec",
 ] }
-tracing-tree = { version = "0.4.0" }
 tryfn = { version = "0.2.1" }
 typed-arena = { version = "2.0.2" }
 unic-ucd-category = { version = "0.9" }
@@ -169,12 +187,7 @@ unicode-width = { version = "0.2.0" }
 unicode_names2 = { version = "1.2.2" }
 unicode-normalization = { version = "0.1.23" }
 url = { version = "2.5.0" }
-uuid = { version = "1.6.1", features = [
-    "v4",
-    "fast-rng",
-    "macro-diagnostics",
-    "js",
-] }
+uuid = { version = "1.6.1", features = ["v4", "fast-rng", "macro-diagnostics"] }
 walkdir = { version = "2.3.2" }
 wasm-bindgen = { version = "0.2.92" }
 wasm-bindgen-test = { version = "0.3.42" }
@@ -182,7 +195,7 @@ wild = { version = "2" }
 zip = { version = "0.6.6", default-features = false }
 
 [workspace.metadata.cargo-shear]
-ignored = ["getrandom"]
+ignored = ["getrandom", "ruff_options_metadata", "uuid"]
 
 
 [workspace.lints.rust]
@@ -209,10 +222,12 @@ must_use_candidate = "allow"
 similar_names = "allow"
 single_match_else = "allow"
 too_many_lines = "allow"
-needless_continue = "allow"       # An explicit continue can be more readable, especially if the alternative is an empty block.
+needless_continue = "allow" # An explicit continue can be more readable, especially if the alternative is an empty block.
+unnecessary_debug_formatting = "allow" # too many instances, the display also doesn't quote the path which is often desired in logs where we use them the most often.
 # Without the hashes we run into a `rustfmt` bug in some snapshot tests, see #13250
 needless_raw_string_hashes = "allow"
 # Disallowed restriction lints
+ignore_without_reason = "allow" # Too many exsisting instances, and there's no auto fix.
 print_stdout = "warn"
 print_stderr = "warn"
 dbg_macro = "warn"
@@ -254,6 +269,9 @@ opt-level = 3
 [profile.dev.package.similar]
 opt-level = 3
 
+[profile.dev.package.salsa]
+opt-level = 3
+
 # Reduce complexity of a parser function that would trigger a locals limit in a wasm tool.
 # https://github.com/bytecodealliance/wasm-tools/blob/b5c3d98e40590512a3b12470ef358d5c7b983b15/crates/wasmparser/src/limits.rs#L29
 [profile.dev.package.ruff_python_parser]

README.md

@@ -34,8 +34,7 @@ An extremely fast Python linter and code formatter, written in Rust.
 - 🔧 Fix support, for automatic error correction (e.g., automatically remove unused imports)
 - 📏 Over [800 built-in rules](https://docs.astral.sh/ruff/rules/), with native re-implementations
     of popular Flake8 plugins, like flake8-bugbear
-- ⌨️ First-party [editor integrations](https://docs.astral.sh/ruff/integrations/) for
-    [VS Code](https://github.com/astral-sh/ruff-vscode) and [more](https://docs.astral.sh/ruff/editors/setup)
+- ⌨️ First-party [editor integrations](https://docs.astral.sh/ruff/editors) for [VS Code](https://github.com/astral-sh/ruff-vscode) and [more](https://docs.astral.sh/ruff/editors/setup)
 - 🌎 Monorepo-friendly, with [hierarchical and cascading configuration](https://docs.astral.sh/ruff/configuration/#config-file-discovery)
 
 Ruff aims to be orders of magnitude faster than alternative tools while integrating more
@@ -149,8 +148,8 @@ curl -LsSf https://astral.sh/ruff/install.sh | sh
 powershell -c "irm https://astral.sh/ruff/install.ps1 | iex"
 
 # For a specific version.
-curl -LsSf https://astral.sh/ruff/0.11.8/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.11.8/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.12.5/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.12.5/install.ps1 | iex"
 ```
 
 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -183,10 +182,10 @@ Ruff can also be used as a [pre-commit](https://pre-commit.com/) hook via [`ruff
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.11.8
+  rev: v0.12.5
   hooks:
     # Run the linter.
-    - id: ruff
+    - id: ruff-check
       args: [ --fix ]
     # Run the formatter.
     - id: ruff-format
@@ -255,7 +254,7 @@ indent-width = 4
 target-version = "py39"
 
 [lint]
-# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.
+# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`) codes by default.
 select = ["E4", "E7", "E9", "F"]
 ignore = []
 
@@ -424,12 +423,14 @@ Ruff is used by a number of major open-source projects and companies, including:
 
 - [Albumentations](https://github.com/albumentations-team/albumentations)
 - Amazon ([AWS SAM](https://github.com/aws/serverless-application-model))
+- [Anki](https://apps.ankiweb.net/)
 - Anthropic ([Python SDK](https://github.com/anthropics/anthropic-sdk-python))
 - [Apache Airflow](https://github.com/apache/airflow)
 - AstraZeneca ([Magnus](https://github.com/AstraZeneca/magnus-core))
 - [Babel](https://github.com/python-babel/babel)
 - Benchling ([Refac](https://github.com/benchling/refac))
 - [Bokeh](https://github.com/bokeh/bokeh)
+- Capital One ([datacompy](https://github.com/capitalone/datacompy))
 - CrowdCent ([NumerBlox](https://github.com/crowdcent/numerblox)) <!-- typos: ignore -->
 - [Cryptography (PyCA)](https://github.com/pyca/cryptography)
 - CERN ([Indico](https://getindico.io/))
@@ -506,6 +507,7 @@ Ruff is used by a number of major open-source projects and companies, including:
 - [Streamlit](https://github.com/streamlit/streamlit)
 - [The Algorithms](https://github.com/TheAlgorithms/Python)
 - [Vega-Altair](https://github.com/altair-viz/altair)
+- [Weblate](https://weblate.org/)
 - WordPress ([Openverse](https://github.com/WordPress/openverse))
 - [ZenML](https://github.com/zenml-io/zenml)
 - [Zulip](https://github.com/zulip/zulip)

_typos.toml

@@ -4,6 +4,10 @@ extend-exclude = [
     "crates/ty_vendored/vendor/**/*",
     "**/resources/**/*",
     "**/snapshots/**/*",
+    # Completion tests tend to have a lot of incomplete
+    # words naturally. It's annoying to have to make all
+    # of them actually words. So just ignore typos here.
+    "crates/ty_ide/src/completion.rs",
 ]
 
 [default.extend-words]

changelogs/0.1.x.md

@@ -0,0 +1,885 @@
+# Changelog 0.1.x
+
+## 0.1.0
+
+This is the first release which uses the `CHANGELOG` file. See [GitHub Releases](https://github.com/astral-sh/ruff/releases) for prior changelog entries.
+
+Read Ruff's new [versioning policy](https://docs.astral.sh/ruff/versioning/).
+
+### Breaking changes
+
+- Unsafe fixes are no longer displayed or applied without opt-in ([#7769](https://github.com/astral-sh/ruff/pull/7769))
+- Drop formatting specific rules from the default set ([#7900](https://github.com/astral-sh/ruff/pull/7900))
+- The deprecated `format` setting has been removed ([#7984](https://github.com/astral-sh/ruff/pull/7984))
+    - The `format` setting cannot be used to configure the output format, use `output-format` instead
+    - The `RUFF_FORMAT` environment variable is ignored, use `RUFF_OUTPUT_FORMAT` instead
+    - The `--format` option has been removed from `ruff check`, use `--output-format` instead
+
+### Rule changes
+
+- Extend `reimplemented-starmap` (`FURB140`) to catch calls with a single and starred argument ([#7768](https://github.com/astral-sh/ruff/pull/7768))
+- Improve cases covered by `RUF015` ([#7848](https://github.com/astral-sh/ruff/pull/7848))
+- Update `SIM15` to allow `open` followed by `close` ([#7916](https://github.com/astral-sh/ruff/pull/7916))
+- Respect `msgspec.Struct` default-copy semantics in `RUF012` ([#7786](https://github.com/astral-sh/ruff/pull/7786))
+- Add `sqlalchemy` methods to \`flake8-boolean-trap\`\` exclusion list ([#7874](https://github.com/astral-sh/ruff/pull/7874))
+- Add fix for `PLR1714` ([#7910](https://github.com/astral-sh/ruff/pull/7910))
+- Add fix for `PIE804` ([#7884](https://github.com/astral-sh/ruff/pull/7884))
+- Add fix for `PLC0208` ([#7887](https://github.com/astral-sh/ruff/pull/7887))
+- Add fix for `PYI055` ([#7886](https://github.com/astral-sh/ruff/pull/7886))
+- Update `non-pep695-type-alias` to require `--unsafe-fixes` outside of stub files ([#7836](https://github.com/astral-sh/ruff/pull/7836))
+- Improve fix message for `UP018` ([#7913](https://github.com/astral-sh/ruff/pull/7913))
+- Update `PLW3201` to support `Enum` [sunder names](https://docs.python.org/3/library/enum.html#supported-sunder-names) ([#7987](https://github.com/astral-sh/ruff/pull/7987))
+
+### Preview features
+
+- Only show warnings for empty preview selectors when enabling rules ([#7842](https://github.com/astral-sh/ruff/pull/7842))
+- Add `unnecessary-key-check` to simplify `key in dct and dct[key]` to `dct.get(key)` ([#7895](https://github.com/astral-sh/ruff/pull/7895))
+- Add `assignment-in-assert` to prevent walrus expressions in assert statements ([#7856](https://github.com/astral-sh/ruff/pull/7856))
+- \[`refurb`\] Add `single-item-membership-test` (`FURB171`) ([#7815](https://github.com/astral-sh/ruff/pull/7815))
+- \[`pylint`\] Add `and-or-ternary` (`R1706`) ([#7811](https://github.com/astral-sh/ruff/pull/7811))
+
+_New rules are added in [preview](https://docs.astral.sh/ruff/preview/)._
+
+### Configuration
+
+- Add `unsafe-fixes` setting ([#7769](https://github.com/astral-sh/ruff/pull/7769))
+- Add `extend-safe-fixes` and `extend-unsafe-fixes` for promoting and demoting fixes ([#7841](https://github.com/astral-sh/ruff/pull/7841))
+
+### CLI
+
+- Added `--unsafe-fixes` option for opt-in to display and apply unsafe fixes ([#7769](https://github.com/astral-sh/ruff/pull/7769))
+- Fix use of deprecated `--format` option in warning ([#7837](https://github.com/astral-sh/ruff/pull/7837))
+- Show changed files when running under `--check` ([#7788](https://github.com/astral-sh/ruff/pull/7788))
+- Write summary messages to stderr when fixing via stdin instead of omitting them ([#7838](https://github.com/astral-sh/ruff/pull/7838))
+- Update fix summary message in `check --diff` to include unsafe fix hints ([#7790](https://github.com/astral-sh/ruff/pull/7790))
+- Add notebook `cell` field to JSON output format ([#7664](https://github.com/astral-sh/ruff/pull/7664))
+- Rename applicability levels to `Safe`, `Unsafe`, and `Display` ([#7843](https://github.com/astral-sh/ruff/pull/7843))
+
+### Bug fixes
+
+- Fix bug where f-strings were allowed in match pattern literal ([#7857](https://github.com/astral-sh/ruff/pull/7857))
+- Fix `SIM110` with a yield in the condition ([#7801](https://github.com/astral-sh/ruff/pull/7801))
+- Preserve trailing comments in `C414` fixes ([#7775](https://github.com/astral-sh/ruff/pull/7775))
+- Check sequence type before triggering `unnecessary-enumerate` `len` suggestion ([#7781](https://github.com/astral-sh/ruff/pull/7781))
+- Use correct start location for class/function clause header ([#7802](https://github.com/astral-sh/ruff/pull/7802))
+- Fix incorrect fixes for `SIM101` ([#7798](https://github.com/astral-sh/ruff/pull/7798))
+- Format comment before parameter default correctly ([#7870](https://github.com/astral-sh/ruff/pull/7870))
+- Fix `E251` false positive inside f-strings ([#7894](https://github.com/astral-sh/ruff/pull/7894))
+- Allow bindings to be created and referenced within annotations ([#7885](https://github.com/astral-sh/ruff/pull/7885))
+- Show per-cell diffs when analyzing notebooks over `stdin` ([#7789](https://github.com/astral-sh/ruff/pull/7789))
+- Avoid curly brace escape in f-string format spec ([#7780](https://github.com/astral-sh/ruff/pull/7780))
+- Fix lexing single-quoted f-string with multi-line format spec ([#7787](https://github.com/astral-sh/ruff/pull/7787))
+- Consider nursery rules to be in-preview for `ruff rule` ([#7812](https://github.com/astral-sh/ruff/pull/7812))
+- Report precise location for invalid conversion flag ([#7809](https://github.com/astral-sh/ruff/pull/7809))
+- Visit pattern match guard as a boolean test ([#7911](https://github.com/astral-sh/ruff/pull/7911))
+- Respect `--unfixable` in `ISC` rules ([#7917](https://github.com/astral-sh/ruff/pull/7917))
+- Fix edge case with `PIE804` ([#7922](https://github.com/astral-sh/ruff/pull/7922))
+- Show custom message in `PTH118` for `Path.joinpath` with starred arguments ([#7852](https://github.com/astral-sh/ruff/pull/7852))
+- Fix false negative in `outdated-version-block` when using greater than comparisons ([#7920](https://github.com/astral-sh/ruff/pull/7920))
+- Avoid converting f-strings within Django `gettext` calls ([#7898](https://github.com/astral-sh/ruff/pull/7898))
+- Fix false positive in `PLR6301` ([#7933](https://github.com/astral-sh/ruff/pull/7933))
+- Treat type aliases as typing-only expressions e.g. resolves false positive in `TCH004` ([#7968](https://github.com/astral-sh/ruff/pull/7968))
+- Resolve `cache-dir` relative to project root ([#7962](https://github.com/astral-sh/ruff/pull/7962))
+- Respect subscripted base classes in type-checking rules e.g. resolves false positive in `TCH003` ([#7954](https://github.com/astral-sh/ruff/pull/7954))
+- Fix JSON schema limit for `line-length` ([#7883](https://github.com/astral-sh/ruff/pull/7883))
+- Fix commented-out `coalesce` keyword ([#7876](https://github.com/astral-sh/ruff/pull/7876))
+
+### Documentation
+
+- Document `reimplemented-starmap` performance effects ([#7846](https://github.com/astral-sh/ruff/pull/7846))
+- Default to following the system dark/light mode ([#7888](https://github.com/astral-sh/ruff/pull/7888))
+- Add documentation for fixes ([#7901](https://github.com/astral-sh/ruff/pull/7901))
+- Fix typo in docs of `PLR6301` ([#7831](https://github.com/astral-sh/ruff/pull/7831))
+- Update `UP038` docs to note that it results in slower code ([#7872](https://github.com/astral-sh/ruff/pull/7872))
+- crlf -> cr-lf ([#7766](https://github.com/astral-sh/ruff/pull/7766))
+- Add an example of an unsafe fix ([#7924](https://github.com/astral-sh/ruff/pull/7924))
+- Fix documented examples for `unnecessary-subscript-reversal` ([#7774](https://github.com/astral-sh/ruff/pull/7774))
+- Correct error in tuple example in ruff formatter docs ([#7822](https://github.com/astral-sh/ruff/pull/7822))
+- Add versioning policy to documentation ([#7923](https://github.com/astral-sh/ruff/pull/7923))
+- Fix invalid code in `FURB177` example ([#7832](https://github.com/astral-sh/ruff/pull/7832))
+
+### Formatter
+
+- Less scary `ruff format` message ([#7867](https://github.com/astral-sh/ruff/pull/7867))
+- Remove spaces from import statements ([#7859](https://github.com/astral-sh/ruff/pull/7859))
+- Formatter quoting for f-strings with triple quotes ([#7826](https://github.com/astral-sh/ruff/pull/7826))
+- Update `ruff_python_formatter` generate.py comment ([#7850](https://github.com/astral-sh/ruff/pull/7850))
+- Document one-call chaining deviation ([#7767](https://github.com/astral-sh/ruff/pull/7767))
+- Allow f-string modifications in line-shrinking cases ([#7818](https://github.com/astral-sh/ruff/pull/7818))
+- Add trailing comment deviation to README ([#7827](https://github.com/astral-sh/ruff/pull/7827))
+- Add trailing zero between dot and exponential ([#7956](https://github.com/astral-sh/ruff/pull/7956))
+- Force parentheses for power operations in unary expressions ([#7955](https://github.com/astral-sh/ruff/pull/7955))
+
+### Playground
+
+- Fix playground `Quick Fix` action ([#7824](https://github.com/astral-sh/ruff/pull/7824))
+
+## 0.1.1
+
+### Rule changes
+
+- Add unsafe fix for `escape-sequence-in-docstring` (`D301`) ([#7970](https://github.com/astral-sh/ruff/pull/7970))
+
+### Configuration
+
+- Respect `#(deprecated)` attribute in configuration options ([#8035](https://github.com/astral-sh/ruff/pull/8035))
+- Add `[format|lint].exclude` options ([#8000](https://github.com/astral-sh/ruff/pull/8000))
+- Respect `tab-size` setting in formatter ([#8006](https://github.com/astral-sh/ruff/pull/8006))
+- Add `lint.preview` ([#8002](https://github.com/astral-sh/ruff/pull/8002))
+
+### Preview features
+
+- \[`pylint`\] Implement `literal-membership` (`PLR6201`) ([#7973](https://github.com/astral-sh/ruff/pull/7973))
+- \[`pylint`\] Implement `too-many-boolean-expressions` (`PLR0916`) ([#7975](https://github.com/astral-sh/ruff/pull/7975))
+- \[`pylint`\] Implement `misplaced-bare-raise` (`E0704`) ([#7961](https://github.com/astral-sh/ruff/pull/7961))
+- \[`pylint`\] Implement `global-at-module-level` (`W0604`) ([#8058](https://github.com/astral-sh/ruff/pull/8058))
+- \[`pylint`\] Implement `unspecified-encoding` (`PLW1514`) ([#7939](https://github.com/astral-sh/ruff/pull/7939))
+- Add fix for `triple-single-quotes` (`D300`) ([#7967](https://github.com/astral-sh/ruff/pull/7967))
+
+### Formatter
+
+- New code style badge for `ruff format` ([#7878](https://github.com/astral-sh/ruff/pull/7878))
+- Fix comments outside expression parentheses ([#7873](https://github.com/astral-sh/ruff/pull/7873))
+- Add `--target-version` to `ruff format` ([#8055](https://github.com/astral-sh/ruff/pull/8055))
+- Skip over parentheses when detecting `in` keyword ([#8054](https://github.com/astral-sh/ruff/pull/8054))
+- Add `--diff` option to `ruff format` ([#7937](https://github.com/astral-sh/ruff/pull/7937))
+- Insert newline after nested function or class statements ([#7946](https://github.com/astral-sh/ruff/pull/7946))
+- Use `pass` over ellipsis in non-function/class contexts ([#8049](https://github.com/astral-sh/ruff/pull/8049))
+
+### Bug fixes
+
+- Lazily evaluate all PEP 695 type alias values ([#8033](https://github.com/astral-sh/ruff/pull/8033))
+- Avoid failed assertion when showing fixes from stdin ([#8029](https://github.com/astral-sh/ruff/pull/8029))
+- Avoid flagging HTTP and HTTPS literals in urllib-open ([#8046](https://github.com/astral-sh/ruff/pull/8046))
+- Avoid flagging `bad-dunder-method-name` for `_` ([#8015](https://github.com/astral-sh/ruff/pull/8015))
+- Remove Python 2-only methods from `URLOpen` audit ([#8047](https://github.com/astral-sh/ruff/pull/8047))
+- Use set bracket replacement for `iteration-over-set` to preserve whitespace and comments ([#8001](https://github.com/astral-sh/ruff/pull/8001))
+
+### Documentation
+
+- Update tutorial to match revised Ruff defaults ([#8066](https://github.com/astral-sh/ruff/pull/8066))
+- Update rule `B005` docs ([#8028](https://github.com/astral-sh/ruff/pull/8028))
+- Update GitHub actions example in docs to use `--output-format` ([#8014](https://github.com/astral-sh/ruff/pull/8014))
+- Document `lint.preview` and `format.preview` ([#8032](https://github.com/astral-sh/ruff/pull/8032))
+- Clarify that new rules should be added to `RuleGroup::Preview`. ([#7989](https://github.com/astral-sh/ruff/pull/7989))
+
+## 0.1.2
+
+This release includes the Beta version of the Ruff formatter — an extremely fast, Black-compatible Python formatter.
+Try it today with `ruff format`! [Check out the blog post](https://astral.sh/blog/the-ruff-formatter) and [read the docs](https://docs.astral.sh/ruff/formatter/).
+
+### Preview features
+
+- \[`pylint`\] Implement `non-ascii-module-import` (`C2403`) ([#8056](https://github.com/astral-sh/ruff/pull/8056))
+- \[`pylint`\] implement `non-ascii-name` (`C2401`) ([#8038](https://github.com/astral-sh/ruff/pull/8038))
+- \[`pylint`\] Implement unnecessary-lambda (W0108) ([#7953](https://github.com/astral-sh/ruff/pull/7953))
+- \[`refurb`\] Implement `read-whole-file` (`FURB101`) ([#7682](https://github.com/astral-sh/ruff/pull/7682))
+- Add fix for `E223`, `E224`, and `E242` ([#8143](https://github.com/astral-sh/ruff/pull/8143))
+- Add fix for `E225`, `E226`, `E227`, and `E228` ([#8136](https://github.com/astral-sh/ruff/pull/8136))
+- Add fix for `E252` ([#8142](https://github.com/astral-sh/ruff/pull/8142))
+- Add fix for `E261` ([#8114](https://github.com/astral-sh/ruff/pull/8114))
+- Add fix for `E273` and `E274` ([#8144](https://github.com/astral-sh/ruff/pull/8144))
+- Add fix for `E275` ([#8133](https://github.com/astral-sh/ruff/pull/8133))
+- Update `SIM401` to catch ternary operations ([#7415](https://github.com/astral-sh/ruff/pull/7415))
+- Update `E721` to allow `is` and `is` not for direct type comparisons ([#7905](https://github.com/astral-sh/ruff/pull/7905))
+
+### Rule changes
+
+- Add `backports.strenum` to `deprecated-imports` ([#8113](https://github.com/astral-sh/ruff/pull/8113))
+- Update `SIM112` to ignore `https_proxy`, `http_proxy`, and `no_proxy` ([#8140](https://github.com/astral-sh/ruff/pull/8140))
+- Update fix for `literal-membership` (`PLR6201`) to be unsafe ([#8097](https://github.com/astral-sh/ruff/pull/8097))
+- Update fix for `mutable-argument-defaults` (`B006`) to be unsafe ([#8108](https://github.com/astral-sh/ruff/pull/8108))
+
+### Formatter
+
+- Change `line-ending` default to `auto` ([#8057](https://github.com/astral-sh/ruff/pull/8057))
+- Respect parenthesized generators in `has_own_parentheses` ([#8100](https://github.com/astral-sh/ruff/pull/8100))
+- Add caching to formatter ([#8089](https://github.com/astral-sh/ruff/pull/8089))
+- Remove `--line-length` option from `format` command ([#8131](https://github.com/astral-sh/ruff/pull/8131))
+- Add formatter to `line-length` documentation ([#8150](https://github.com/astral-sh/ruff/pull/8150))
+- Warn about incompatible formatter options ([#8088](https://github.com/astral-sh/ruff/pull/8088))
+- Fix range of unparenthesized tuple subject in match statement ([#8101](https://github.com/astral-sh/ruff/pull/8101))
+- Remove experimental formatter warning ([#8148](https://github.com/astral-sh/ruff/pull/8148))
+- Don't move type param opening parenthesis comment ([#8163](https://github.com/astral-sh/ruff/pull/8163))
+- Update versions in format benchmark script ([#8110](https://github.com/astral-sh/ruff/pull/8110))
+- Avoid loading files for cached format results ([#8134](https://github.com/astral-sh/ruff/pull/8134))
+
+### CLI
+
+- Show the `ruff format` command in help menus ([#8167](https://github.com/astral-sh/ruff/pull/8167))
+- Add `ruff version` command with long version display ([#8034](https://github.com/astral-sh/ruff/pull/8034))
+
+### Configuration
+
+- New `pycodestyle.max-line-length` option ([#8039](https://github.com/astral-sh/ruff/pull/8039))
+
+### Bug fixes
+
+- Detect `sys.version_info` slices in `outdated-version-block` ([#8112](https://github.com/astral-sh/ruff/pull/8112))
+- Avoid if-else simplification for `TYPE_CHECKING` blocks ([#8072](https://github.com/astral-sh/ruff/pull/8072))
+- Avoid false-positive print separator diagnostic with starred argument ([#8079](https://github.com/astral-sh/ruff/pull/8079))
+
+### Documentation
+
+- Fix message for `too-many-arguments` lint ([#8092](https://github.com/astral-sh/ruff/pull/8092))
+- Fix `extend-unsafe-fixes` and `extend-safe-fixes` example ([#8139](https://github.com/astral-sh/ruff/pull/8139))
+- Add links to `flake8-import-conventions` options ([#8115](https://github.com/astral-sh/ruff/pull/8115))
+- Rework the documentation to incorporate the Ruff formatter ([#7732](https://github.com/astral-sh/ruff/pull/7732))
+- Fix `Options` JSON schema description ([#8081](https://github.com/astral-sh/ruff/pull/8081))
+- Fix typo (`pytext` -> `pytest`) ([#8117](https://github.com/astral-sh/ruff/pull/8117))
+- Improve `magic-value-comparison` example in docs ([#8111](https://github.com/astral-sh/ruff/pull/8111))
+
+## 0.1.3
+
+This release includes a variety of improvements to the Ruff formatter, removing several known and
+unintentional deviations from Black.
+
+### Formatter
+
+- Avoid space around pow for `None`, `True` and `False` ([#8189](https://github.com/astral-sh/ruff/pull/8189))
+- Avoid sorting all paths in the format command ([#8181](https://github.com/astral-sh/ruff/pull/8181))
+- Insert necessary blank line between class and leading comments ([#8224](https://github.com/astral-sh/ruff/pull/8224))
+- Avoid introducing new parentheses in annotated assignments ([#8233](https://github.com/astral-sh/ruff/pull/8233))
+- Refine the warnings about incompatible linter options ([#8196](https://github.com/astral-sh/ruff/pull/8196))
+- Add test and basic implementation for formatter preview mode ([#8044](https://github.com/astral-sh/ruff/pull/8044))
+- Refine warning about incompatible `isort` settings ([#8192](https://github.com/astral-sh/ruff/pull/8192))
+- Only omit optional parentheses for starting or ending with parentheses ([#8238](https://github.com/astral-sh/ruff/pull/8238))
+- Use source type to determine parser mode for formatting ([#8205](https://github.com/astral-sh/ruff/pull/8205))
+- Don't warn about magic trailing comma when `isort.force-single-line` is true ([#8244](https://github.com/astral-sh/ruff/pull/8244))
+- Use `SourceKind::diff` for formatter ([#8240](https://github.com/astral-sh/ruff/pull/8240))
+- Fix `fmt:off` with trailing child comment ([#8234](https://github.com/astral-sh/ruff/pull/8234))
+- Formatter parentheses support for `IpyEscapeCommand` ([#8207](https://github.com/astral-sh/ruff/pull/8207))
+
+### Linter
+
+- \[`pylint`\] Add buffer methods to `bad-dunder-method-name` (`PLW3201`) exclusions ([#8190](https://github.com/astral-sh/ruff/pull/8190))
+- Match rule prefixes from `external` codes setting in `unused-noqa` ([#8177](https://github.com/astral-sh/ruff/pull/8177))
+- Use `line-length` setting for isort in lieu of `pycodestyle.max-line-length` ([#8235](https://github.com/astral-sh/ruff/pull/8235))
+- Update fix for `unnecessary-paren-on-raise-exception` to unsafe for unknown types ([#8231](https://github.com/astral-sh/ruff/pull/8231))
+- Correct quick fix message for `W605` ([#8255](https://github.com/astral-sh/ruff/pull/8255))
+
+### Documentation
+
+- Fix typo in max-doc-length documentation ([#8201](https://github.com/astral-sh/ruff/pull/8201))
+- Improve documentation around linter-formatter conflicts ([#8257](https://github.com/astral-sh/ruff/pull/8257))
+- Fix link to error suppression documentation in `unused-noqa` ([#8172](https://github.com/astral-sh/ruff/pull/8172))
+- Add `external` option to `unused-noqa` documentation ([#8171](https://github.com/astral-sh/ruff/pull/8171))
+- Add title attribute to icons ([#8060](https://github.com/astral-sh/ruff/pull/8060))
+- Clarify unsafe case in RSE102 ([#8256](https://github.com/astral-sh/ruff/pull/8256))
+- Fix skipping formatting examples ([#8210](https://github.com/astral-sh/ruff/pull/8210))
+- docs: fix name of `magic-trailing-comma` option in README ([#8200](https://github.com/astral-sh/ruff/pull/8200))
+- Add note about scope of rule changing in versioning policy ([#8169](https://github.com/astral-sh/ruff/pull/8169))
+- Document: Fix default lint rules ([#8218](https://github.com/astral-sh/ruff/pull/8218))
+- Fix a wrong setting in configuration.md ([#8186](https://github.com/astral-sh/ruff/pull/8186))
+- Fix misspelled TOML headers in the tutorial ([#8209](https://github.com/astral-sh/ruff/pull/8209))
+
+## 0.1.4
+
+### Preview features
+
+- \[`flake8-trio`\] Implement `timeout-without-await` (`TRIO001`) ([#8439](https://github.com/astral-sh/ruff/pull/8439))
+- \[`numpy`\] Implement NumPy 2.0 migration rule (`NPY200`) ([#7702](https://github.com/astral-sh/ruff/pull/7702))
+- \[`pylint`\] Implement `bad-open-mode` (`W1501`) ([#8294](https://github.com/astral-sh/ruff/pull/8294))
+- \[`pylint`\] Implement `import-outside-toplevel` (`C0415`) rule ([#5180](https://github.com/astral-sh/ruff/pull/5180))
+- \[`pylint`\] Implement `useless-with-lock` (`W2101`) ([#8321](https://github.com/astral-sh/ruff/pull/8321))
+- \[`pyupgrade`\] Implement `timeout-error-alias` (`UP041`) ([#8476](https://github.com/astral-sh/ruff/pull/8476))
+- \[`refurb`\] Implement `isinstance-type-none` (`FURB168`) ([#8308](https://github.com/astral-sh/ruff/pull/8308))
+- Detect confusable Unicode-to-Unicode units in `RUF001`, `RUF002`, and `RUF003` ([#4430](https://github.com/astral-sh/ruff/pull/4430))
+- Add newline after module docstrings in preview style ([#8283](https://github.com/astral-sh/ruff/pull/8283))
+
+### Formatter
+
+- Add a note on line-too-long to the formatter docs ([#8314](https://github.com/astral-sh/ruff/pull/8314))
+- Preserve trailing statement semicolons when using `fmt: skip` ([#8273](https://github.com/astral-sh/ruff/pull/8273))
+- Preserve trailing semicolons when using `fmt: off` ([#8275](https://github.com/astral-sh/ruff/pull/8275))
+- Avoid duplicating linter-formatter compatibility warnings ([#8292](https://github.com/astral-sh/ruff/pull/8292))
+- Avoid inserting a newline after function docstrings ([#8375](https://github.com/astral-sh/ruff/pull/8375))
+- Insert newline between docstring and following own line comment ([#8216](https://github.com/astral-sh/ruff/pull/8216))
+- Split tuples in return positions by comma first ([#8280](https://github.com/astral-sh/ruff/pull/8280))
+- Avoid treating byte strings as docstrings ([#8350](https://github.com/astral-sh/ruff/pull/8350))
+- Add `--line-length` option to `format` command ([#8363](https://github.com/astral-sh/ruff/pull/8363))
+- Avoid parenthesizing unsplittable because of comments ([#8431](https://github.com/astral-sh/ruff/pull/8431))
+
+### CLI
+
+- Add `--output-format` to `ruff rule` and `ruff linter` ([#8203](https://github.com/astral-sh/ruff/pull/8203))
+
+### Bug fixes
+
+- Respect `--force-exclude` in `lint.exclude` and `format.exclude` ([#8393](https://github.com/astral-sh/ruff/pull/8393))
+- Respect `--extend-per-file-ignores` on the CLI ([#8329](https://github.com/astral-sh/ruff/pull/8329))
+- Extend `bad-dunder-method-name` to permit `__index__` ([#8300](https://github.com/astral-sh/ruff/pull/8300))
+- Fix panic with 8 in octal escape ([#8356](https://github.com/astral-sh/ruff/pull/8356))
+- Avoid raising `D300` when both triple quote styles are present ([#8462](https://github.com/astral-sh/ruff/pull/8462))
+- Consider unterminated f-strings in `FStringRanges` ([#8154](https://github.com/astral-sh/ruff/pull/8154))
+- Avoid including literal `shell=True` for truthy, non-`True` diagnostics ([#8359](https://github.com/astral-sh/ruff/pull/8359))
+- Avoid triggering single-element test for starred expressions ([#8433](https://github.com/astral-sh/ruff/pull/8433))
+- Detect and ignore Jupyter automagics ([#8398](https://github.com/astral-sh/ruff/pull/8398))
+- Fix invalid E231 error with f-strings ([#8369](https://github.com/astral-sh/ruff/pull/8369))
+- Avoid triggering `NamedTuple` rewrite with starred annotation ([#8434](https://github.com/astral-sh/ruff/pull/8434))
+- Avoid un-setting bracket flag in logical lines ([#8380](https://github.com/astral-sh/ruff/pull/8380))
+- Place 'r' prefix before 'f' for raw format strings ([#8464](https://github.com/astral-sh/ruff/pull/8464))
+- Remove trailing periods from NumPy 2.0 code actions ([#8475](https://github.com/astral-sh/ruff/pull/8475))
+- Fix bug where `PLE1307` was raised when formatting `%c` with characters ([#8407](https://github.com/astral-sh/ruff/pull/8407))
+- Remove unicode flag from comparable ([#8440](https://github.com/astral-sh/ruff/pull/8440))
+- Improve B015 message ([#8295](https://github.com/astral-sh/ruff/pull/8295))
+- Use `fixedOverflowWidgets` for playground popover ([#8458](https://github.com/astral-sh/ruff/pull/8458))
+- Mark `byte_bounds` as a non-backwards-compatible NumPy 2.0 change ([#8474](https://github.com/astral-sh/ruff/pull/8474))
+
+### Internals
+
+- Add a dedicated cache directory per Ruff version ([#8333](https://github.com/astral-sh/ruff/pull/8333))
+- Allow selective caching for `--fix` and `--diff` ([#8316](https://github.com/astral-sh/ruff/pull/8316))
+- Improve performance of comment parsing ([#8193](https://github.com/astral-sh/ruff/pull/8193))
+- Improve performance of string parsing ([#8227](https://github.com/astral-sh/ruff/pull/8227))
+- Use a dedicated sort key for isort import sorting ([#7963](https://github.com/astral-sh/ruff/pull/7963))
+
+## 0.1.5
+
+### Preview features
+
+- \[`flake8-bandit`\] Implement `mako-templates` (`S702`) ([#8533](https://github.com/astral-sh/ruff/pull/8533))
+- \[`flake8-trio`\] Implement `TRIO105` ([#8490](https://github.com/astral-sh/ruff/pull/8490))
+- \[`flake8-trio`\] Implement `TRIO109` ([#8534](https://github.com/astral-sh/ruff/pull/8534))
+- \[`flake8-trio`\] Implement `TRIO110` ([#8537](https://github.com/astral-sh/ruff/pull/8537))
+- \[`flake8-trio`\] Implement `TRIO115` ([#8486](https://github.com/astral-sh/ruff/pull/8486))
+- \[`refurb`\] Implement `type-none-comparison` (`FURB169`) ([#8487](https://github.com/astral-sh/ruff/pull/8487))
+- Flag all comparisons against builtin types in `E721` ([#8491](https://github.com/astral-sh/ruff/pull/8491))
+- Make `SIM118` fix as safe when the expression is a known dictionary ([#8525](https://github.com/astral-sh/ruff/pull/8525))
+
+### Formatter
+
+- Fix multiline lambda expression statement formatting ([#8466](https://github.com/astral-sh/ruff/pull/8466))
+
+### CLI
+
+- Add hidden `--extension` to override inference of source type from file extension ([#8373](https://github.com/astral-sh/ruff/pull/8373))
+
+### Configuration
+
+- Account for selector specificity when merging `extend_unsafe_fixes` and `override extend_safe_fixes` ([#8444](https://github.com/astral-sh/ruff/pull/8444))
+- Add support for disabling cache with `RUFF_NO_CACHE` environment variable ([#8538](https://github.com/astral-sh/ruff/pull/8538))
+
+### Bug fixes
+
+- \[`E721`\] Flag comparisons to `memoryview` ([#8485](https://github.com/astral-sh/ruff/pull/8485))
+- Allow collapsed-ellipsis bodies in other statements ([#8499](https://github.com/astral-sh/ruff/pull/8499))
+- Avoid `D301` autofix for `u` prefixed strings ([#8495](https://github.com/astral-sh/ruff/pull/8495))
+- Only flag `flake8-trio` rules when `trio` import is present ([#8550](https://github.com/astral-sh/ruff/pull/8550))
+- Reject more syntactically invalid Python programs ([#8524](https://github.com/astral-sh/ruff/pull/8524))
+- Avoid raising `TRIO115` violations for `trio.sleep(...)` calls with non-number values ([#8532](https://github.com/astral-sh/ruff/pull/8532))
+- Fix `F841` false negative on assignment to multiple variables ([#8489](https://github.com/astral-sh/ruff/pull/8489))
+
+### Documentation
+
+- Fix link to isort `known-first-party` ([#8562](https://github.com/astral-sh/ruff/pull/8562))
+- Add notes on fix safety to a few rules ([#8500](https://github.com/astral-sh/ruff/pull/8500))
+- Add missing toml config tabs ([#8512](https://github.com/astral-sh/ruff/pull/8512))
+- Add instructions for configuration of Emacs ([#8488](https://github.com/astral-sh/ruff/pull/8488))
+- Improve detail link contrast in dark mode ([#8548](https://github.com/astral-sh/ruff/pull/8548))
+- Fix typo in example ([#8506](https://github.com/astral-sh/ruff/pull/8506))
+- Added tabs for configuration files in the documentation ([#8480](https://github.com/astral-sh/ruff/pull/8480))
+- Recommend `project.requires-python` over `target-version` ([#8513](https://github.com/astral-sh/ruff/pull/8513))
+- Add singleton escape hatch to `B008` documentation ([#8501](https://github.com/astral-sh/ruff/pull/8501))
+- Fix tab configuration docs ([#8502](https://github.com/astral-sh/ruff/pull/8502))
+
+## 0.1.6
+
+### Preview features
+
+- \[`flake8-boolean-trap`\] Extend `boolean-type-hint-positional-argument` (`FBT001`) to include booleans in unions ([#7501](https://github.com/astral-sh/ruff/pull/7501))
+- \[`flake8-pie`\] Extend `reimplemented-list-builtin` (`PIE807`) to `dict` reimplementations ([#8608](https://github.com/astral-sh/ruff/pull/8608))
+- \[`flake8-pie`\] Extend `unnecessary-pass` (`PIE790`) to include ellipses (`...`) ([#8641](https://github.com/astral-sh/ruff/pull/8641))
+- \[`flake8-pie`\] Implement fix for `unnecessary-spread` (`PIE800`) ([#8668](https://github.com/astral-sh/ruff/pull/8668))
+- \[`flake8-quotes`\] Implement `unnecessary-escaped-quote` (`Q004`) ([#8630](https://github.com/astral-sh/ruff/pull/8630))
+- \[`pycodestyle`\] Implement fix for `multiple-spaces-after-keyword` (`E271`) and `multiple-spaces-before-keyword` (`E272`) ([#8622](https://github.com/astral-sh/ruff/pull/8622))
+- \[`pycodestyle`\] Implement fix for `multiple-spaces-after-operator` (`E222`) and `multiple-spaces-before-operator` (`E221`) ([#8623](https://github.com/astral-sh/ruff/pull/8623))
+- \[`pyflakes`\] Extend `is-literal` (`F632`) to include comparisons against mutable initializers ([#8607](https://github.com/astral-sh/ruff/pull/8607))
+- \[`pylint`\] Implement `redefined-argument-from-local` (`PLR1704`) ([#8159](https://github.com/astral-sh/ruff/pull/8159))
+- \[`pylint`\] Implement fix for `unnecessary-lambda` (`PLW0108`) ([#8621](https://github.com/astral-sh/ruff/pull/8621))
+- \[`refurb`\] Implement `if-expr-min-max` (`FURB136`) ([#8664](https://github.com/astral-sh/ruff/pull/8664))
+- \[`refurb`\] Implement `math-constant` (`FURB152`) ([#8727](https://github.com/astral-sh/ruff/pull/8727))
+
+### Rule changes
+
+- \[`flake8-annotations`\] Add autotyping-like return type inference for annotation rules ([#8643](https://github.com/astral-sh/ruff/pull/8643))
+- \[`flake8-future-annotations`\] Implement fix for `future-required-type-annotation` (`FA102`) ([#8711](https://github.com/astral-sh/ruff/pull/8711))
+- \[`flake8-implicit-namespace-package`\] Avoid missing namespace violations in scripts with shebangs ([#8710](https://github.com/astral-sh/ruff/pull/8710))
+- \[`pydocstyle`\] Update `over-indentation` (`D208`) to preserve indentation offsets when fixing overindented lines ([#8699](https://github.com/astral-sh/ruff/pull/8699))
+- \[`pyupgrade`\] Refine `timeout-error-alias` (`UP041`) to remove false positives ([#8587](https://github.com/astral-sh/ruff/pull/8587))
+
+### Formatter
+
+- Fix instability in `await` formatting with fluent style ([#8676](https://github.com/astral-sh/ruff/pull/8676))
+- Compare formatted and unformatted ASTs during formatter tests ([#8624](https://github.com/astral-sh/ruff/pull/8624))
+- Preserve trailing semicolon for Notebooks ([#8590](https://github.com/astral-sh/ruff/pull/8590))
+
+### CLI
+
+- Improve debug printing for resolving origin of config settings ([#8729](https://github.com/astral-sh/ruff/pull/8729))
+- Write unchanged, excluded files to stdout when read via stdin ([#8596](https://github.com/astral-sh/ruff/pull/8596))
+
+### Configuration
+
+- \[`isort`\] Support disabling sections with `no-sections = true` ([#8657](https://github.com/astral-sh/ruff/pull/8657))
+- \[`pep8-naming`\] Support local and dynamic class- and static-method decorators ([#8592](https://github.com/astral-sh/ruff/pull/8592))
+- \[`pydocstyle`\] Allow overriding pydocstyle convention rules ([#8586](https://github.com/astral-sh/ruff/pull/8586))
+
+### Bug fixes
+
+- Avoid syntax error via importing `trio.lowlevel` ([#8730](https://github.com/astral-sh/ruff/pull/8730))
+- Omit unrolled augmented assignments in `PIE794` ([#8634](https://github.com/astral-sh/ruff/pull/8634))
+- Slice source code instead of generating it for `EM` fixes ([#7746](https://github.com/astral-sh/ruff/pull/7746))
+- Allow whitespace around colon in slices for `whitespace-before-punctuation` (`E203`) ([#8654](https://github.com/astral-sh/ruff/pull/8654))
+- Use function range for `no-self-use` ([#8637](https://github.com/astral-sh/ruff/pull/8637))
+- F-strings doesn't contain bytes literal for `PLW0129` ([#8675](https://github.com/astral-sh/ruff/pull/8675))
+- Improve detection of `TYPE_CHECKING` blocks imported from `typing_extensions` or `_typeshed` ([#8429](https://github.com/astral-sh/ruff/pull/8429))
+- Treat display as a builtin in IPython ([#8707](https://github.com/astral-sh/ruff/pull/8707))
+- Avoid `FURB113` autofix if comments are present ([#8494](https://github.com/astral-sh/ruff/pull/8494))
+- Consider the new f-string tokens for `flake8-commas` ([#8582](https://github.com/astral-sh/ruff/pull/8582))
+- Remove erroneous bad-dunder-name reference ([#8742](https://github.com/astral-sh/ruff/pull/8742))
+- Avoid recommending Self usages in metaclasses ([#8639](https://github.com/astral-sh/ruff/pull/8639))
+- Detect runtime-evaluated base classes defined in the current file ([#8572](https://github.com/astral-sh/ruff/pull/8572))
+- Avoid inserting trailing commas within f-strings ([#8574](https://github.com/astral-sh/ruff/pull/8574))
+- Remove incorrect deprecation label for stdout and stderr ([#8743](https://github.com/astral-sh/ruff/pull/8743))
+- Fix unnecessary parentheses in UP007 fix ([#8610](https://github.com/astral-sh/ruff/pull/8610))
+- Remove repeated and erroneous scoped settings headers in docs ([#8670](https://github.com/astral-sh/ruff/pull/8670))
+- Trim trailing empty strings when converting to f-strings ([#8712](https://github.com/astral-sh/ruff/pull/8712))
+- Fix ordering for `force-sort-within-sections` ([#8665](https://github.com/astral-sh/ruff/pull/8665))
+- Run unicode prefix rule over tokens ([#8709](https://github.com/astral-sh/ruff/pull/8709))
+- Update UP032 to unescape curly braces in literal parts of converted strings ([#8697](https://github.com/astral-sh/ruff/pull/8697))
+- List all ipython builtins ([#8719](https://github.com/astral-sh/ruff/pull/8719))
+
+### Documentation
+
+- Document conventions in the FAQ ([#8638](https://github.com/astral-sh/ruff/pull/8638))
+- Redirect from rule codes to rule pages in docs ([#8636](https://github.com/astral-sh/ruff/pull/8636))
+- Fix permalink to convention setting ([#8575](https://github.com/astral-sh/ruff/pull/8575))
+
+## 0.1.7
+
+### Preview features
+
+- Implement multiline dictionary and list hugging for preview style ([#8293](https://github.com/astral-sh/ruff/pull/8293))
+- Implement the `fix_power_op_line_length` preview style ([#8947](https://github.com/astral-sh/ruff/pull/8947))
+- Use Python version to determine typing rewrite safety ([#8919](https://github.com/astral-sh/ruff/pull/8919))
+- \[`flake8-annotations`\] Enable auto-return-type involving `Optional` and `Union` annotations ([#8885](https://github.com/astral-sh/ruff/pull/8885))
+- \[`flake8-bandit`\] Implement `django-raw-sql` (`S611`) ([#8651](https://github.com/astral-sh/ruff/pull/8651))
+- \[`flake8-bandit`\] Implement `tarfile-unsafe-members` (`S202`) ([#8829](https://github.com/astral-sh/ruff/pull/8829))
+- \[`flake8-pyi`\] Implement fix for `unnecessary-literal-union` (`PYI030`) ([#7934](https://github.com/astral-sh/ruff/pull/7934))
+- \[`flake8-simplify`\] Extend `dict-get-with-none-default` (`SIM910`) to non-literals ([#8762](https://github.com/astral-sh/ruff/pull/8762))
+- \[`pylint`\] - add `unnecessary-list-index-lookup` (`PLR1736`) + autofix ([#7999](https://github.com/astral-sh/ruff/pull/7999))
+- \[`pylint`\] - implement R0202 and R0203 with autofixes ([#8335](https://github.com/astral-sh/ruff/pull/8335))
+- \[`pylint`\] Implement `repeated-keyword` (`PLe1132`) ([#8706](https://github.com/astral-sh/ruff/pull/8706))
+- \[`pylint`\] Implement `too-many-positional` (`PLR0917`) ([#8995](https://github.com/astral-sh/ruff/pull/8995))
+- \[`pylint`\] Implement `unnecessary-dict-index-lookup` (`PLR1733`) ([#8036](https://github.com/astral-sh/ruff/pull/8036))
+- \[`refurb`\] Implement `redundant-log-base` (`FURB163`) ([#8842](https://github.com/astral-sh/ruff/pull/8842))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Allow booleans in `@override` methods ([#8882](https://github.com/astral-sh/ruff/pull/8882))
+- \[`flake8-bugbear`\] Avoid `B015`,`B018` for last expression in a cell ([#8815](https://github.com/astral-sh/ruff/pull/8815))
+- \[`flake8-pie`\] Allow ellipses for enum values in stub files ([#8825](https://github.com/astral-sh/ruff/pull/8825))
+- \[`flake8-pyi`\] Check PEP 695 type aliases for `snake-case-type-alias` and `t-suffixed-type-alias` ([#8966](https://github.com/astral-sh/ruff/pull/8966))
+- \[`flake8-pyi`\] Check for kwarg and vararg `NoReturn` type annotations ([#8948](https://github.com/astral-sh/ruff/pull/8948))
+- \[`flake8-simplify`\] Omit select context managers from `SIM117` ([#8801](https://github.com/astral-sh/ruff/pull/8801))
+- \[`pep8-naming`\] Allow Django model loads in `non-lowercase-variable-in-function` (`N806`) ([#8917](https://github.com/astral-sh/ruff/pull/8917))
+- \[`pycodestyle`\] Avoid `E703` for last expression in a cell ([#8821](https://github.com/astral-sh/ruff/pull/8821))
+- \[`pycodestyle`\] Update `E402` to work at cell level for notebooks ([#8872](https://github.com/astral-sh/ruff/pull/8872))
+- \[`pydocstyle`\] Avoid `D100` for Jupyter Notebooks ([#8816](https://github.com/astral-sh/ruff/pull/8816))
+- \[`pylint`\] Implement fix for `unspecified-encoding` (`PLW1514`) ([#8928](https://github.com/astral-sh/ruff/pull/8928))
+
+### Formatter
+
+- Avoid unstable formatting in ellipsis-only body with trailing comment ([#8984](https://github.com/astral-sh/ruff/pull/8984))
+- Inline trailing comments for type alias similar to assignments ([#8941](https://github.com/astral-sh/ruff/pull/8941))
+- Insert trailing comma when function breaks with single argument ([#8921](https://github.com/astral-sh/ruff/pull/8921))
+
+### CLI
+
+- Update `ruff check` and `ruff format` to default to the current directory ([#8791](https://github.com/astral-sh/ruff/pull/8791))
+- Stop at the first resolved parent configuration ([#8864](https://github.com/astral-sh/ruff/pull/8864))
+
+### Configuration
+
+- \[`pylint`\] Default `max-positional-args` to `max-args` ([#8998](https://github.com/astral-sh/ruff/pull/8998))
+- \[`pylint`\] Add `allow-dunder-method-names` setting for `bad-dunder-method-name` (`PLW3201`) ([#8812](https://github.com/astral-sh/ruff/pull/8812))
+- \[`isort`\] Add support for `from-first` setting ([#8663](https://github.com/astral-sh/ruff/pull/8663))
+- \[`isort`\] Add support for `length-sort` settings ([#8841](https://github.com/astral-sh/ruff/pull/8841))
+
+### Bug fixes
+
+- Add support for `@functools.singledispatch` ([#8934](https://github.com/astral-sh/ruff/pull/8934))
+- Avoid off-by-one error in stripping noqa following multi-byte char ([#8979](https://github.com/astral-sh/ruff/pull/8979))
+- Avoid off-by-one error in with-item named expressions ([#8915](https://github.com/astral-sh/ruff/pull/8915))
+- Avoid syntax error via invalid ur string prefix ([#8971](https://github.com/astral-sh/ruff/pull/8971))
+- Avoid underflow in `get_model` matching ([#8965](https://github.com/astral-sh/ruff/pull/8965))
+- Avoid unnecessary index diagnostics when value is modified ([#8970](https://github.com/astral-sh/ruff/pull/8970))
+- Convert over-indentation rule to use number of characters ([#8983](https://github.com/astral-sh/ruff/pull/8983))
+- Detect implicit returns in auto-return-types ([#8952](https://github.com/astral-sh/ruff/pull/8952))
+- Fix start >= end error in over-indentation ([#8982](https://github.com/astral-sh/ruff/pull/8982))
+- Ignore `@overload` and `@override` methods for too-many-arguments checks ([#8954](https://github.com/astral-sh/ruff/pull/8954))
+- Lexer start of line is false only for `Mode::Expression` ([#8880](https://github.com/astral-sh/ruff/pull/8880))
+- Mark `pydantic_settings.BaseSettings` as having default copy semantics ([#8793](https://github.com/astral-sh/ruff/pull/8793))
+- Respect dictionary unpacking in `NamedTuple` assignments ([#8810](https://github.com/astral-sh/ruff/pull/8810))
+- Respect local subclasses in `flake8-type-checking` ([#8768](https://github.com/astral-sh/ruff/pull/8768))
+- Support type alias statements in simple statement positions ([#8916](https://github.com/astral-sh/ruff/pull/8916))
+- \[`flake8-annotations`\] Avoid filtering out un-representable types in return annotation ([#8881](https://github.com/astral-sh/ruff/pull/8881))
+- \[`flake8-pie`\] Retain extra ellipses in protocols and abstract methods ([#8769](https://github.com/astral-sh/ruff/pull/8769))
+- \[`flake8-pyi`\] Respect local enum subclasses in `simple-defaults` (`PYI052`) ([#8767](https://github.com/astral-sh/ruff/pull/8767))
+- \[`flake8-trio`\] Use correct range for `TRIO115` fix ([#8933](https://github.com/astral-sh/ruff/pull/8933))
+- \[`flake8-trio`\] Use full arguments range for zero-sleep-call ([#8936](https://github.com/astral-sh/ruff/pull/8936))
+- \[`isort`\] fix: mark `__main__` as first-party import ([#8805](https://github.com/astral-sh/ruff/pull/8805))
+- \[`pep8-naming`\] Avoid `N806` errors for type alias statements ([#8785](https://github.com/astral-sh/ruff/pull/8785))
+- \[`perflint`\] Avoid `PERF101` if there's an append in loop body ([#8809](https://github.com/astral-sh/ruff/pull/8809))
+- \[`pycodestyle`\] Allow space-before-colon after end-of-slice ([#8838](https://github.com/astral-sh/ruff/pull/8838))
+- \[`pydocstyle`\] Avoid non-character breaks in `over-indentation` (`D208`) ([#8866](https://github.com/astral-sh/ruff/pull/8866))
+- \[`pydocstyle`\] Ignore underlines when determining docstring logical lines ([#8929](https://github.com/astral-sh/ruff/pull/8929))
+- \[`pylint`\] Extend `self-assigning-variable` to multi-target assignments ([#8839](https://github.com/astral-sh/ruff/pull/8839))
+- \[`tryceratops`\] Avoid repeated triggers in nested `tryceratops` diagnostics ([#8772](https://github.com/astral-sh/ruff/pull/8772))
+
+### Documentation
+
+- Add advice for fixing RUF008 when mutability is not desired ([#8853](https://github.com/astral-sh/ruff/pull/8853))
+- Added the command to run ruff using pkgx to the installation.md ([#8955](https://github.com/astral-sh/ruff/pull/8955))
+- Document fix safety for flake8-comprehensions and some pyupgrade rules ([#8918](https://github.com/astral-sh/ruff/pull/8918))
+- Fix doc formatting for zero-sleep-call ([#8937](https://github.com/astral-sh/ruff/pull/8937))
+- Remove duplicate imports from os-stat documentation ([#8930](https://github.com/astral-sh/ruff/pull/8930))
+- Replace generated reference to MkDocs ([#8806](https://github.com/astral-sh/ruff/pull/8806))
+- Update Arch Linux package URL in installation.md ([#8802](https://github.com/astral-sh/ruff/pull/8802))
+- \[`flake8-pyi`\] Fix error in `t-suffixed-type-alias` (`PYI043`) example ([#8963](https://github.com/astral-sh/ruff/pull/8963))
+- \[`flake8-pyi`\] Improve motivation for `custom-type-var-return-type` (`PYI019`) ([#8766](https://github.com/astral-sh/ruff/pull/8766))
+
+## 0.1.8
+
+This release includes opt-in support for formatting Python snippets within
+docstrings via the `docstring-code-format` setting.
+[Check out the blog post](https://astral.sh/blog/ruff-v0.1.8) for more details!
+
+### Preview features
+
+- Add `"preserve"` quote-style to mimic Black's skip-string-normalization ([#8822](https://github.com/astral-sh/ruff/pull/8822))
+- Implement `prefer_splitting_right_hand_side_of_assignments` preview style ([#8943](https://github.com/astral-sh/ruff/pull/8943))
+- \[`pycodestyle`\] Add fix for `unexpected-spaces-around-keyword-parameter-equals` ([#9072](https://github.com/astral-sh/ruff/pull/9072))
+- \[`pycodestyle`\] Add fix for comment-related whitespace rules ([#9075](https://github.com/astral-sh/ruff/pull/9075))
+- \[`pycodestyle`\] Allow `sys.path` modifications between imports ([#9047](https://github.com/astral-sh/ruff/pull/9047))
+- \[`refurb`\] Implement `hashlib-digest-hex` (`FURB181`) ([#9077](https://github.com/astral-sh/ruff/pull/9077))
+
+### Rule changes
+
+- Allow `flake8-type-checking` rules to automatically quote runtime-evaluated references ([#6001](https://github.com/astral-sh/ruff/pull/6001))
+- Allow transparent cell magics in Jupyter Notebooks ([#8911](https://github.com/astral-sh/ruff/pull/8911))
+- \[`flake8-annotations`\] Avoid `ANN2xx` fixes for abstract methods with empty bodies ([#9034](https://github.com/astral-sh/ruff/pull/9034))
+- \[`flake8-self`\] Ignore underscore references in type annotations ([#9036](https://github.com/astral-sh/ruff/pull/9036))
+- \[`pep8-naming`\] Allow class names when `apps.get_model` is a non-string ([#9065](https://github.com/astral-sh/ruff/pull/9065))
+- \[`pycodestyle`\] Allow `matplotlib.use` calls to intersperse imports ([#9094](https://github.com/astral-sh/ruff/pull/9094))
+- \[`pyflakes`\] Support fixing unused assignments in tuples by renaming variables (`F841`) ([#9107](https://github.com/astral-sh/ruff/pull/9107))
+- \[`pylint`\] Add fix for `subprocess-run-without-check` (`PLW1510`) ([#6708](https://github.com/astral-sh/ruff/pull/6708))
+
+### Formatter
+
+- Add `docstring-code-format` knob to enable docstring snippet formatting ([#8854](https://github.com/astral-sh/ruff/pull/8854))
+- Use double quotes for all docstrings, including single-quoted docstrings ([#9020](https://github.com/astral-sh/ruff/pull/9020))
+- Implement "dynamic" line width mode for docstring code formatting ([#9098](https://github.com/astral-sh/ruff/pull/9098))
+- Support reformatting Markdown code blocks ([#9030](https://github.com/astral-sh/ruff/pull/9030))
+- add support for formatting reStructuredText code snippets ([#9003](https://github.com/astral-sh/ruff/pull/9003))
+- Avoid trailing comma for single-argument with positional separator ([#9076](https://github.com/astral-sh/ruff/pull/9076))
+- Fix handling of trailing target comment ([#9051](https://github.com/astral-sh/ruff/pull/9051))
+
+### CLI
+
+- Hide unsafe fix suggestions when explicitly disabled ([#9095](https://github.com/astral-sh/ruff/pull/9095))
+- Add SARIF support to `--output-format` ([#9078](https://github.com/astral-sh/ruff/pull/9078))
+
+### Bug fixes
+
+- Apply unnecessary index rule prior to enumerate rewrite ([#9012](https://github.com/astral-sh/ruff/pull/9012))
+- \[`flake8-err-msg`\] Allow `EM` fixes even if `msg` variable is defined ([#9059](https://github.com/astral-sh/ruff/pull/9059))
+- \[`flake8-pie`\] Prevent keyword arguments duplication ([#8450](https://github.com/astral-sh/ruff/pull/8450))
+- \[`flake8-pie`\] Respect trailing comma in `unnecessary-dict-kwargs` (`PIE804`) ([#9015](https://github.com/astral-sh/ruff/pull/9015))
+- \[`flake8-raise`\] Avoid removing parentheses on ctypes.WinError ([#9027](https://github.com/astral-sh/ruff/pull/9027))
+- \[`isort`\] Avoid invalid combination of `force-sort-within-types` and `lines-between-types` ([#9041](https://github.com/astral-sh/ruff/pull/9041))
+- \[`isort`\] Ensure that from-style imports are always ordered first in `__future__` ([#9039](https://github.com/astral-sh/ruff/pull/9039))
+- \[`pycodestyle`\] Allow tab indentation before keyword ([#9099](https://github.com/astral-sh/ruff/pull/9099))
+- \[`pylint`\] Ignore `@overrides` and `@overloads` for `too-many-positional` ([#9000](https://github.com/astral-sh/ruff/pull/9000))
+- \[`pyupgrade`\] Enable `printf-string-formatting` fix with comments on right-hand side ([#9037](https://github.com/astral-sh/ruff/pull/9037))
+- \[`refurb`\] Make `math-constant` (`FURB152`) rule more targeted ([#9054](https://github.com/astral-sh/ruff/pull/9054))
+- \[`refurb`\] Support floating-point base in `redundant-log-base` (`FURB163`) ([#9100](https://github.com/astral-sh/ruff/pull/9100))
+- \[`ruff`\] Detect `unused-asyncio-dangling-task` (`RUF006`) on unused assignments ([#9060](https://github.com/astral-sh/ruff/pull/9060))
+
+## 0.1.9
+
+### Breaking changes
+
+- Add site-packages to default exclusions ([#9188](https://github.com/astral-sh/ruff/pull/9188))
+
+### Preview features
+
+- Fix: Avoid parenthesizing subscript targets and values ([#9209](https://github.com/astral-sh/ruff/pull/9209))
+- \[`pylint`\] Implement `too-many-locals` (`PLR0914`) ([#9163](https://github.com/astral-sh/ruff/pull/9163))
+- Implement `reimplemented_operator` (FURB118) ([#9171](https://github.com/astral-sh/ruff/pull/9171))
+- Add a rule to detect string members in runtime-evaluated unions ([#9143](https://github.com/astral-sh/ruff/pull/9143))
+- Implement `no_blank_line_before_class_docstring` preview style ([#9154](https://github.com/astral-sh/ruff/pull/9154))
+
+### Rule changes
+
+- `CONSTANT_CASE` variables are improperly flagged for yoda violation (`SIM300`) ([#9164](https://github.com/astral-sh/ruff/pull/9164))
+- \[`flake8-pyi`\] Cover ParamSpecs and TypeVarTuples (`PYI018`) ([#9198](https://github.com/astral-sh/ruff/pull/9198))
+- \[`flake8-bugbear`\] Add fix for `zip-without-explicit-strict` (`B905`) ([#9176](https://github.com/astral-sh/ruff/pull/9176))
+- Add fix to automatically remove `print` and `pprint` statements (`T201`, `T203`) ([#9208](https://github.com/astral-sh/ruff/pull/9208))
+- Prefer `Never` to `NoReturn` in auto-typing in Python >= 3.11 (`ANN201`) ([#9213](https://github.com/astral-sh/ruff/pull/9213))
+
+### Formatter
+
+- `can_omit_optional_parentheses`: Exit early for unparenthesized expressions ([#9125](https://github.com/astral-sh/ruff/pull/9125))
+- Fix `dynamic` mode with doctests so that it doesn't exceed configured line width ([#9129](https://github.com/astral-sh/ruff/pull/9129))
+- Fix `can_omit_optional_parentheses` for expressions with a right most fstring ([#9124](https://github.com/astral-sh/ruff/pull/9124))
+- Add `target_version` to formatter options ([#9220](https://github.com/astral-sh/ruff/pull/9220))
+
+### CLI
+
+- Update `ruff format --check` to display message for already formatted files ([#9153](https://github.com/astral-sh/ruff/pull/9153))
+
+### Bug fixes
+
+- Reverse order of arguments for `operator.contains` ([#9192](https://github.com/astral-sh/ruff/pull/9192))
+- Iterate over lambdas in deferred type annotations ([#9175](https://github.com/astral-sh/ruff/pull/9175))
+- Fix panic in `D208` with multibyte indent ([#9147](https://github.com/astral-sh/ruff/pull/9147))
+- Add support for `NoReturn` in auto-return-typing ([#9206](https://github.com/astral-sh/ruff/pull/9206))
+- Allow removal of `typing` from `exempt-modules` ([#9214](https://github.com/astral-sh/ruff/pull/9214))
+- Avoid `mutable-class-default` violations for Pydantic subclasses ([#9187](https://github.com/astral-sh/ruff/pull/9187))
+- Fix dropped union expressions for piped non-types in `PYI055` autofix ([#9161](https://github.com/astral-sh/ruff/pull/9161))
+- Enable annotation quoting for multi-line expressions ([#9142](https://github.com/astral-sh/ruff/pull/9142))
+- Deduplicate edits when quoting annotations ([#9140](https://github.com/astral-sh/ruff/pull/9140))
+- Prevent invalid utf8 indexing in cell magic detection ([#9146](https://github.com/astral-sh/ruff/pull/9146))
+- Avoid nested quotations in auto-quoting fix ([#9168](https://github.com/astral-sh/ruff/pull/9168))
+- Add base-class inheritance detection to flake8-django rules ([#9151](https://github.com/astral-sh/ruff/pull/9151))
+- Avoid `asyncio-dangling-task` violations on shadowed bindings ([#9215](https://github.com/astral-sh/ruff/pull/9215))
+
+### Documentation
+
+- Fix blog post URL in changelog ([#9119](https://github.com/astral-sh/ruff/pull/9119))
+- Add error suppression hint for multi-line strings ([#9205](https://github.com/astral-sh/ruff/pull/9205))
+- Fix typo in SemanticModel.parent_expression docstring ([#9167](https://github.com/astral-sh/ruff/pull/9167))
+- Document link between import sorting and formatter ([#9117](https://github.com/astral-sh/ruff/pull/9117))
+
+## 0.1.10
+
+### Preview features
+
+- Improve `dummy_implementations` preview style formatting ([#9240](https://github.com/astral-sh/ruff/pull/9240))
+- Normalise Hex and unicode escape sequences in strings ([#9280](https://github.com/astral-sh/ruff/pull/9280))
+- Parenthesize long type annotations in annotated assignments ([#9210](https://github.com/astral-sh/ruff/pull/9210))
+- Parenthesize multi-context managers in `with` statements ([#9222](https://github.com/astral-sh/ruff/pull/9222))
+- \[`flake8-pyi`\] Implement `generator-return-from-iter-method` (`PYI058`) ([#9313](https://github.com/astral-sh/ruff/pull/9313))
+- \[`pylint`\] Implement `empty-comment` (`PLR2044`) ([#9174](https://github.com/astral-sh/ruff/pull/9174))
+- \[`refurb`\] Implement `bit-count` (`FURB161`) ([#9265](https://github.com/astral-sh/ruff/pull/9265))
+- \[`ruff`\] Add `never-union` rule to detect redundant `typing.NoReturn` and `typing.Never` ([#9217](https://github.com/astral-sh/ruff/pull/9217))
+
+### CLI
+
+- Add paths to TOML parse errors ([#9358](https://github.com/astral-sh/ruff/pull/9358))
+- Add row and column numbers to formatter parse errors ([#9321](https://github.com/astral-sh/ruff/pull/9321))
+- Improve responsiveness when invoked via Python ([#9315](https://github.com/astral-sh/ruff/pull/9315))
+- Short rule messages should not end with a period ([#9345](https://github.com/astral-sh/ruff/pull/9345))
+
+### Configuration
+
+- Respect runtime-required decorators on functions ([#9317](https://github.com/astral-sh/ruff/pull/9317))
+
+### Bug fixes
+
+- Avoid `asyncio-dangling-task` for nonlocal and global bindings ([#9263](https://github.com/astral-sh/ruff/pull/9263))
+- Escape trailing placeholders in rule documentation ([#9301](https://github.com/astral-sh/ruff/pull/9301))
+- Fix continuation detection following multi-line strings ([#9332](https://github.com/astral-sh/ruff/pull/9332))
+- Fix scoping for generators in named expressions in classes ([#9248](https://github.com/astral-sh/ruff/pull/9248))
+- Port from obsolete wsl crate to is-wsl ([#9356](https://github.com/astral-sh/ruff/pull/9356))
+- Remove special pre-visit for module docstrings ([#9261](https://github.com/astral-sh/ruff/pull/9261))
+- Respect `__str__` definitions from super classes ([#9338](https://github.com/astral-sh/ruff/pull/9338))
+- Respect `unused-noqa` via `per-file-ignores` ([#9300](https://github.com/astral-sh/ruff/pull/9300))
+- Respect attribute chains when resolving builtin call paths ([#9309](https://github.com/astral-sh/ruff/pull/9309))
+- Treat all `typing_extensions` members as typing aliases ([#9335](https://github.com/astral-sh/ruff/pull/9335))
+- Use `Display` for formatter parse errors ([#9316](https://github.com/astral-sh/ruff/pull/9316))
+- Wrap subscripted dicts in parens for f-string conversion ([#9238](https://github.com/astral-sh/ruff/pull/9238))
+- \[`flake8-annotations`\] Avoid adding return types to stub methods ([#9277](https://github.com/astral-sh/ruff/pull/9277))
+- \[`flake8-annotations`\] Respect mixed `return` and `raise` cases in return-type analysis ([#9310](https://github.com/astral-sh/ruff/pull/9310))
+- \[`flake8-bandit`\] Don't report violations when `SafeLoader` is imported from `yaml.loader` (`S506`) ([#9299](https://github.com/astral-sh/ruff/pull/9299))
+- \[`pylint`\] Avoid panic when comment is preceded by Unicode ([#9331](https://github.com/astral-sh/ruff/pull/9331))
+- \[`pylint`\] Change `PLR0917` error message to match other `PLR09XX` messages ([#9308](https://github.com/astral-sh/ruff/pull/9308))
+- \[`refurb`\] Avoid false positives for `math-constant` (`FURB152`) ([#9290](https://github.com/astral-sh/ruff/pull/9290))
+
+### Documentation
+
+- Expand target name for better rule documentation ([#9302](https://github.com/astral-sh/ruff/pull/9302))
+- Fix typos found by codespell ([#9346](https://github.com/astral-sh/ruff/pull/9346))
+- \[`perflint`\] Document `PERF102` fix un-safety ([#9351](https://github.com/astral-sh/ruff/pull/9351))
+- \[`pyupgrade`\] Document `UP007` fix un-safety ([#9306](https://github.com/astral-sh/ruff/pull/9306))
+
+## 0.1.11
+
+### Preview features
+
+- \[`pylint`\] Implement `super-without-brackets` (`W0245`) ([#9257](https://github.com/astral-sh/ruff/pull/9257))
+
+### Bug fixes
+
+- Check path string properly in `python -m ruff` invocations ([#9367](https://github.com/astral-sh/ruff/pull/9367))
+
+### Documentation
+
+- Tweak `relative-imports` message ([#9365](https://github.com/astral-sh/ruff/pull/9365))
+- Add fix safety note for `yield-in-for-loop` ([#9364](https://github.com/astral-sh/ruff/pull/9364))
+
+## 0.1.12
+
+### Preview features
+
+- Formatter: Hug multiline-strings in preview style ([#9243](https://github.com/astral-sh/ruff/pull/9243))
+- \[`flake8-bandit`\] Add `ssl-with-no-version` (`S504`) ([#9384](https://github.com/astral-sh/ruff/pull/9384))
+- \[`flake8-bandit`\] Implement `ssl-insecure-version` (`S502`) ([#9390](https://github.com/astral-sh/ruff/pull/9390))
+- \[`flake8-bandit`\] Implement `ssl-with-bad-defaults` (`S503`) ([#9391](https://github.com/astral-sh/ruff/pull/9391))
+- \[`flake8-bandit`\] Implement suspicious import rules (`S4XX`) ([#8831](https://github.com/astral-sh/ruff/pull/8831))
+- \[`flake8-simplify`\] Implement `zip-dict-keys-and-values` (`SIM911`) ([#9460](https://github.com/astral-sh/ruff/pull/9460))
+- \[`pyflakes`\] Add a fix for `redefined-while-unused` (`F811`) ([#9419](https://github.com/astral-sh/ruff/pull/9419))
+- \[`pylint`\] Implement `unnecessary-dunder-call` (`C2801`) ([#9166](https://github.com/astral-sh/ruff/pull/9166))
+- \[`ruff`\] Add `parenthesize-chained-operators` (`RUF021`) to enforce parentheses in `a or b and c` ([#9440](https://github.com/astral-sh/ruff/pull/9440))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Allow Boolean positional arguments in setters ([#9429](https://github.com/astral-sh/ruff/pull/9429))
+- \[`flake8-builtins`\] Restrict `builtin-attribute-shadowing` (`A003`) to actual shadowed references ([#9462](https://github.com/astral-sh/ruff/pull/9462))
+- \[`flake8-pyi`\] Add fix for `generator-return-from-iter-method` (`PYI058`) ([#9355](https://github.com/astral-sh/ruff/pull/9355))
+- \[`pyflakes`\] Don't flag `redefined-while-unused` (`F811`) in `if` branches ([#9418](https://github.com/astral-sh/ruff/pull/9418))
+- \[`pyupgrade`\] Add some additional Python 3.12 typing members to `deprecated-import` ([#9445](https://github.com/astral-sh/ruff/pull/9445))
+- \[`ruff`\] Add fix for `parenthesize-chained-operators` (`RUF021`) ([#9449](https://github.com/astral-sh/ruff/pull/9449))
+- \[`ruff`\] Include subscripts and attributes in static key rule (`RUF011`) ([#9416](https://github.com/astral-sh/ruff/pull/9416))
+- \[`ruff`\] Support variable keys in static dictionary key rule (`RUF011`) ([#9411](https://github.com/astral-sh/ruff/pull/9411))
+
+### Formatter
+
+- Generate deterministic IDs when formatting notebooks ([#9359](https://github.com/astral-sh/ruff/pull/9359))
+- Allow `# fmt: skip` with interspersed same-line comments ([#9395](https://github.com/astral-sh/ruff/pull/9395))
+- Parenthesize breaking named expressions in match guards ([#9396](https://github.com/astral-sh/ruff/pull/9396))
+
+### Bug fixes
+
+- Add cell indexes to all diagnostics ([#9387](https://github.com/astral-sh/ruff/pull/9387))
+- Avoid infinite loop in constant vs. `None` comparisons ([#9376](https://github.com/astral-sh/ruff/pull/9376))
+- Handle raises with implicit alternate branches ([#9377](https://github.com/astral-sh/ruff/pull/9377))
+- Ignore trailing quotes for unclosed l-brace errors ([#9388](https://github.com/astral-sh/ruff/pull/9388))
+- Respect multi-segment submodule imports when resolving qualified names ([#9382](https://github.com/astral-sh/ruff/pull/9382))
+- Use `DisplayParseError` for stdin parser errors ([#9409](https://github.com/astral-sh/ruff/pull/9409))
+- Use `comment_ranges` for isort directive extraction ([#9414](https://github.com/astral-sh/ruff/pull/9414))
+- Use transformed source code for diagnostic locations ([#9408](https://github.com/astral-sh/ruff/pull/9408))
+- \[`flake8-pyi`\] Exclude `warnings.deprecated` and `typing_extensions.deprecated` arguments ([#9423](https://github.com/astral-sh/ruff/pull/9423))
+- \[`flake8-pyi`\] Fix false negative for `unused-private-protocol` (`PYI046`) with unused generic protocols ([#9405](https://github.com/astral-sh/ruff/pull/9405))
+- \[`pydocstyle`\] Disambiguate argument descriptors from section headers ([#9427](https://github.com/astral-sh/ruff/pull/9427))
+- \[`pylint`\] Homogenize `PLR0914` message to match other `PLR09XX` rules ([#9399](https://github.com/astral-sh/ruff/pull/9399))
+- \[`ruff`\] Allow `Hashable = None` in type annotations (`RUF013`) ([#9442](https://github.com/astral-sh/ruff/pull/9442))
+
+### Documentation
+
+- Fix admonition hyperlink colouring ([#9385](https://github.com/astral-sh/ruff/pull/9385))
+- Add missing preview link ([#9386](https://github.com/astral-sh/ruff/pull/9386))
+
+## 0.1.13
+
+### Bug fixes
+
+- Include base pyproject when initializing cache settings ([#9480](https://github.com/astral-sh/ruff/pull/9480))
+- \[`flake8-simplify`\] Account for possibly-empty f-string values in truthiness logic ([#9484](https://github.com/astral-sh/ruff/pull/9484))
+- \[`pylint`\] Add the missing period in `unnecessary-dunder-call` ([#9485](https://github.com/astral-sh/ruff/pull/9485))
+- \[`pylint`\] Fix `__aenter__` message in `unnecessary-dunder-call` ([#9492](https://github.com/astral-sh/ruff/pull/9492))
+
+## 0.1.14
+
+### Preview features
+
+- \[`flake8-bugbear`\] Add fix for `duplicate-value` (`B033`) ([#9510](https://github.com/astral-sh/ruff/pull/9510))
+- \[`flake8-simplify`\] Implement `enumerate-for-loop` (`SIM113`) ([#7777](https://github.com/astral-sh/ruff/pull/7777))
+- \[`pygrep_hooks`\] Add fix for `deprecated-log-warn` (`PGH002`) ([#9519](https://github.com/astral-sh/ruff/pull/9519))
+- \[`pylint`\] Implement `import-private-name` (`C2701`) ([#5920](https://github.com/astral-sh/ruff/pull/5920))
+- \[`refurb`\] Implement `regex-flag-alias` with fix (`FURB167`) ([#9516](https://github.com/astral-sh/ruff/pull/9516))
+- \[`ruff`\] Add rule and fix to sort contents of `__all__` (`RUF022`) ([#9474](https://github.com/astral-sh/ruff/pull/9474))
+- \[`tryceratops`\] Add fix for `error-instead-of-exception` (`TRY400`) ([#9520](https://github.com/astral-sh/ruff/pull/9520))
+
+### Rule changes
+
+- \[`flake8-pyi`\] Fix `PYI047` false negatives on PEP-695 type aliases ([#9566](https://github.com/astral-sh/ruff/pull/9566))
+- \[`flake8-pyi`\] Fix `PYI049` false negatives on call-based `TypedDict`s ([#9567](https://github.com/astral-sh/ruff/pull/9567))
+- \[`pylint`\] Exclude `self` and `cls` when counting method arguments (`PLR0917`) ([#9563](https://github.com/astral-sh/ruff/pull/9563))
+
+### CLI
+
+- `--show-settings` displays active settings in a far more readable format ([#9464](https://github.com/astral-sh/ruff/pull/9464))
+- Add `--extension` support to the formatter ([#9483](https://github.com/astral-sh/ruff/pull/9483))
+
+### Configuration
+
+- Ignore preview status for fixable and unfixable selectors ([#9538](https://github.com/astral-sh/ruff/pull/9538))
+- \[`pycodestyle`\] Use the configured tab size when expanding indents ([#9506](https://github.com/astral-sh/ruff/pull/9506))
+
+### Bug fixes
+
+- Recursively visit deferred AST nodes ([#9541](https://github.com/astral-sh/ruff/pull/9541))
+- Visit deferred lambdas before type definitions ([#9540](https://github.com/astral-sh/ruff/pull/9540))
+- \[`flake8-simplify`\] Avoid some more `enumerate-for-loop` false positives (`SIM113`) ([#9515](https://github.com/astral-sh/ruff/pull/9515))
+- \[`pandas-vet`\] Limit inplace diagnostics to methods that accept inplace ([#9495](https://github.com/astral-sh/ruff/pull/9495))
+- \[`pylint`\] Add the `__prepare__` method to the list of recognized dunder method ([#9529](https://github.com/astral-sh/ruff/pull/9529))
+- \[`pylint`\] Ignore unnecessary dunder calls within dunder definitions ([#9496](https://github.com/astral-sh/ruff/pull/9496))
+- \[`refurb`\] Avoid bailing when `reimplemented-operator` is called on function (`FURB118`) ([#9556](https://github.com/astral-sh/ruff/pull/9556))
+- \[`ruff`\] Avoid treating named expressions as static keys (`RUF011`) ([#9494](https://github.com/astral-sh/ruff/pull/9494))
+
+### Documentation
+
+- Add instructions on using `noqa` with isort rules ([#9555](https://github.com/astral-sh/ruff/pull/9555))
+- Documentation update for URL giving 'page not found' ([#9565](https://github.com/astral-sh/ruff/pull/9565))
+- Fix admonition in dark mode ([#9502](https://github.com/astral-sh/ruff/pull/9502))
+- Update contributing docs to use `cargo bench -p ruff_benchmark` ([#9535](https://github.com/astral-sh/ruff/pull/9535))
+- Update emacs integration section to include `emacs-ruff-format` ([#9403](https://github.com/astral-sh/ruff/pull/9403))
+- \[`flake8-blind-except`\] Document exceptions to `blind-except` rule ([#9580](https://github.com/astral-sh/ruff/pull/9580))
+
+## 0.1.15
+
+### Preview features
+
+- Error when `NURSERY` selector is used with `--preview` ([#9682](https://github.com/astral-sh/ruff/pull/9682))
+- Preserve indentation around multiline strings in formatter ([#9637](https://github.com/astral-sh/ruff/pull/9637))
+- \[`flake8-return`\] Add fixes for all rules (`RET505`, `RET506`, `RET507`, `RET508`) ([#9595](https://github.com/astral-sh/ruff/pull/9595))
+- \[`flake8-simplify`\] Add fix for `if-with-same-arms` (`SIM114`) ([#9591](https://github.com/astral-sh/ruff/pull/9591))
+- \[`pycodestyle`\] Add fix for `multiple-imports-on-one-line` (`E401`) ([#9518](https://github.com/astral-sh/ruff/pull/9518))
+- \[`pylint`\] Add fix for `collapsible-else-if` (`PLR5501`) ([#9594](https://github.com/astral-sh/ruff/pull/9594))
+- \[`pylint`\] Add fix for `useless-else-on-loop` (`PLW0120`) ([#9590](https://github.com/astral-sh/ruff/pull/9590))
+- \[`pylint`\] Implement `assigning-non-slot` (`E0237`) ([#9623](https://github.com/astral-sh/ruff/pull/9623))
+- \[`pylint`\] Implement `potential-index-error` (`PLE0643`) ([#9545](https://github.com/astral-sh/ruff/pull/9545))
+- \[`pylint`\] Implement `too-many-nested-blocks` (`PLR1702`) ([#9172](https://github.com/astral-sh/ruff/pull/9172))
+- \[`ruff`\] Add rule to sort `__slots__` and `__match_args__` ([#9564](https://github.com/astral-sh/ruff/pull/9564))
+- \[`ruff`\] Detect unnecessary `dict` comprehensions for iterables (`RUF025`) ([#9613](https://github.com/astral-sh/ruff/pull/9613))
+- \[`ruff`\] Guard against use of `default_factory` as a keyword argument (`RUF026`) ([#9651](https://github.com/astral-sh/ruff/pull/9651))
+- \[`ruff`\] Implement `mutable-fromkeys-value` (`RUF024`) ([#9597](https://github.com/astral-sh/ruff/pull/9597))
+
+### CLI
+
+- Enable auto-wrapping of `--help` output ([#9633](https://github.com/astral-sh/ruff/pull/9633))
+
+### Bug fixes
+
+- Avoid rendering display-only rules as fixable ([#9649](https://github.com/astral-sh/ruff/pull/9649))
+- Detect automagic-like assignments in notebooks ([#9653](https://github.com/astral-sh/ruff/pull/9653))
+- Generate custom JSON schema for dynamic setting ([#9632](https://github.com/astral-sh/ruff/pull/9632))
+- \[`flake8-no-pep420`\] Include global `--config` when determining namespace packages ([#9603](https://github.com/astral-sh/ruff/pull/9603))
+- \[`flake8-pie`\] Omit bound tuples passed to `.startswith` or `.endswith` ([#9661](https://github.com/astral-sh/ruff/pull/9661))
+- \[`flake8-return`\] Avoid panic when fixing inlined else blocks ([#9657](https://github.com/astral-sh/ruff/pull/9657))
+- \[`flake8-return`\] Consider exception suppression in unnecessary assignment ([#9673](https://github.com/astral-sh/ruff/pull/9673))
+- \[`flake8-return`\] Take `NoReturn` annotation into account when analyzing implicit returns ([#9636](https://github.com/astral-sh/ruff/pull/9636))
+- \[`flake8-simplify`\] Support inverted returns in `needless-bool` (`SIM103`) ([#9619](https://github.com/astral-sh/ruff/pull/9619))
+- \[`flake8-type-checking`\] Add Pydantic's `BaseConfig` to default-copy list ([#9650](https://github.com/astral-sh/ruff/pull/9650))
+- \[`flake8-type-checking`\] Avoid marking `InitVar` as a typing-only annotation ([#9688](https://github.com/astral-sh/ruff/pull/9688))
+- \[`pycodestyle`\] Allow `dtype` comparisons in `type-comparison` ([#9676](https://github.com/astral-sh/ruff/pull/9676))
+- \[`pydocstyle`\] Re-implement `last-line-after-section` (`D413`) ([#9654](https://github.com/astral-sh/ruff/pull/9654))
+
+### Documentation
+
+- \[`flake8-pytest-style`\] Add fix safety documentation for `duplicate-parameterize-test-cases` ([#9678](https://github.com/astral-sh/ruff/pull/9678))
+- \[`pylint`\] Document `literal-membership` fix safety conditions ([#9677](https://github.com/astral-sh/ruff/pull/9677))
+- \[`isort`\] Fix reference to `isort` rule code ([#9598](https://github.com/astral-sh/ruff/pull/9598))

changelogs/0.10.x.md

@@ -0,0 +1,101 @@
+# Changelog 0.10.x
+
+## 0.10.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.10.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- **Changes to how the Python version is inferred when a `target-version` is not specified** ([#16319](https://github.com/astral-sh/ruff/pull/16319))
+
+    Because of a mistake in the release process, the `requires-python` inference changes are not included in this release and instead shipped as part of 0.11.0.
+    You can find a description of this change in the 0.11.0 section.
+
+- **Updated `TYPE_CHECKING` behavior** ([#16669](https://github.com/astral-sh/ruff/pull/16669))
+
+    Previously, Ruff only recognized typechecking blocks that tested the `typing.TYPE_CHECKING` symbol. Now, Ruff recognizes any local variable named `TYPE_CHECKING`. This release also removes support for the legacy `if 0:` and `if False:` typechecking checks. Use a local `TYPE_CHECKING` variable instead.
+
+- **More robust noqa parsing** ([#16483](https://github.com/astral-sh/ruff/pull/16483))
+
+    The syntax for both file-level and in-line suppression comments has been unified and made more robust to certain errors. In most cases, this will result in more suppression comments being read by Ruff, but there are a few instances where previously read comments will now log an error to the user instead. Please refer to the documentation on [_Error suppression_](https://docs.astral.sh/ruff/linter/#error-suppression) for the full specification.
+
+- **Avoid unnecessary parentheses around with statements with a single context manager and a trailing comment** ([#14005](https://github.com/astral-sh/ruff/pull/14005))
+
+    This change fixes a bug in the formatter where it introduced unnecessary parentheses around with statements with a single context manager and a trailing comment. This change may result in a change in formatting for some users.
+
+- **Bump alpine default tag to 3.21 for derived Docker images** ([#16456](https://github.com/astral-sh/ruff/pull/16456))
+
+    Alpine 3.21 was released in Dec 2024 and is used in the official Alpine-based Python images. Now the ruff:alpine image will use 3.21 instead of 3.20 and ruff:alpine3.20 will no longer be updated.
+
+### Deprecated Rules
+
+The following rules have been deprecated:
+
+- [`non-pep604-isinstance`](https://docs.astral.sh/ruff/rules/non-pep604-isinstance/) (`UP038`)
+- [`suspicious-xmle-tree-usage`](https://docs.astral.sh/ruff/rules/suspicious-xmle-tree-usage/) (`S320`)
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- \[`unsafe-markup-use`\]: `RUF035` to `S704`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`batched-without-explicit-strict`](https://docs.astral.sh/ruff/rules/batched-without-explicit-strict) (`B911`)
+- [`unnecessary-dict-comprehension-for-iterable`](https://docs.astral.sh/ruff/rules/unnecessary-dict-comprehension-for-iterable) (`C420`)
+- [`datetime-min-max`](https://docs.astral.sh/ruff/rules/datetime-min-max) (`DTZ901`)
+- [`fast-api-unused-path-parameter`](https://docs.astral.sh/ruff/rules/fast-api-unused-path-parameter) (`FAST003`)
+- [`root-logger-call`](https://docs.astral.sh/ruff/rules/root-logger-call) (`LOG015`)
+- [`len-test`](https://docs.astral.sh/ruff/rules/len-test) (`PLC1802`)
+- [`shallow-copy-environ`](https://docs.astral.sh/ruff/rules/shallow-copy-environ) (`PLW1507`)
+- [`os-listdir`](https://docs.astral.sh/ruff/rules/os-listdir) (`PTH208`)
+- [`invalid-pathlib-with-suffix`](https://docs.astral.sh/ruff/rules/invalid-pathlib-with-suffix) (`PTH210`)
+- [`invalid-assert-message-literal-argument`](https://docs.astral.sh/ruff/rules/invalid-assert-message-literal-argument) (`RUF040`)
+- [`unnecessary-nested-literal`](https://docs.astral.sh/ruff/rules/unnecessary-nested-literal) (`RUF041`)
+- [`unnecessary-cast-to-int`](https://docs.astral.sh/ruff/rules/unnecessary-cast-to-int) (`RUF046`)
+- [`map-int-version-parsing`](https://docs.astral.sh/ruff/rules/map-int-version-parsing) (`RUF048`)
+- [`if-key-in-dict-del`](https://docs.astral.sh/ruff/rules/if-key-in-dict-del) (`RUF051`)
+- [`unsafe-markup-use`](https://docs.astral.sh/ruff/rules/unsafe-markup-use) (`S704`). This rule has also been renamed from `RUF035`.
+- [`split-static-string`](https://docs.astral.sh/ruff/rules/split-static-string) (`SIM905`)
+- [`runtime-cast-value`](https://docs.astral.sh/ruff/rules/runtime-cast-value) (`TC006`)
+- [`unquoted-type-alias`](https://docs.astral.sh/ruff/rules/unquoted-type-alias) (`TC007`)
+- [`non-pep646-unpack`](https://docs.astral.sh/ruff/rules/non-pep646-unpack) (`UP044`)
+
+The following behaviors have been stabilized:
+
+- [`bad-staticmethod-argument`](https://docs.astral.sh/ruff/rules/bad-staticmethod-argument/) (`PLW0211`) [`invalid-first-argument-name-for-class-method`](https://docs.astral.sh/ruff/rules/invalid-first-argument-name-for-class-method/) (`N804`): `__new__` methods are now no longer flagged by `invalid-first-argument-name-for-class-method` (`N804`) but instead by `bad-staticmethod-argument` (`PLW0211`)
+- [`bad-str-strip-call`](https://docs.astral.sh/ruff/rules/bad-str-strip-call/) (`PLE1310`): The rule now applies to objects which are known to have type `str` or `bytes`.
+- [`custom-type-var-for-self`](https://docs.astral.sh/ruff/rules/custom-type-var-for-self/) (`PYI019`): More accurate detection of custom `TypeVars` replaceable by `Self`. The range of the diagnostic is now the full function header rather than just the return annotation.
+- [`invalid-argument-name`](https://docs.astral.sh/ruff/rules/invalid-argument-name/) (`N803`): Ignore argument names of functions decorated with `typing.override`
+- [`invalid-envvar-default`](https://docs.astral.sh/ruff/rules/invalid-envvar-default/) (`PLW1508`): Detect default value arguments to `os.environ.get` with invalid type.
+- [`pytest-raises-with-multiple-statements`](https://docs.astral.sh/ruff/rules/pytest-raises-with-multiple-statements/) (`PT012`) [`pytest-warns-with-multiple-statements`](https://docs.astral.sh/ruff/rules/pytest-warns-with-multiple-statements/) (`PT031`): Allow `for` statements with an empty body in `pytest.raises` and `pytest.warns` `with` statements.
+- [`redundant-open-modes`](https://docs.astral.sh/ruff/rules/redundant-open-modes/) (`UP015`): The diagnostic range is now the range of the redundant mode argument where it previously was the range of the entire open call. You may have to replace your `noqa` comments when suppressing `UP015`.
+- [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) (`A005`): Changes the default value of `lint.flake8-builtins.strict-checking` from `true` to `false`.
+- [`type-none-comparison`](https://docs.astral.sh/ruff/rules/type-none-comparison/) (`FURB169`): Now also recognizes `type(expr) is type(None)` comparisons where `expr` isn't a name expression.
+
+The following fixes or improvements to fixes have been stabilized:
+
+- [`repeated-equality-comparison`](https://docs.astral.sh/ruff/rules/repeated-equality-comparison/) (`PLR1714`) ([#16685](https://github.com/astral-sh/ruff/pull/16685))
+- [`needless-bool`](https://docs.astral.sh/ruff/rules/needless-bool/) (`SIM103`) ([#16684](https://github.com/astral-sh/ruff/pull/16684))
+- [`unused-private-type-var`](https://docs.astral.sh/ruff/rules/unused-private-type-var/) (`PYI018`) ([#16682](https://github.com/astral-sh/ruff/pull/16682))
+
+### Server
+
+- Remove logging output for `ruff.printDebugInformation` ([#16617](https://github.com/astral-sh/ruff/pull/16617))
+
+### Configuration
+
+- \[`flake8-builtins`\] Deprecate the `builtins-` prefixed options in favor of the unprefixed options (e.g. `builtins-allowed-modules` is now deprecated in favor of `allowed-modules`) ([#16092](https://github.com/astral-sh/ruff/pull/16092))
+
+### Bug fixes
+
+- [flake8-bandit] Fix mixed-case hash algorithm names (S324) ([#16552](https://github.com/astral-sh/ruff/pull/16552))
+
+### CLI
+
+- [ruff] Fix `last_tag`/`commits_since_last_tag` for `version` command ([#16686](https://github.com/astral-sh/ruff/pull/16686))

changelogs/0.11.x.md

@@ -0,0 +1,373 @@
+# Changelog 0.11.x
+
+## 0.11.0
+
+This is a follow-up to release 0.10.0. Because of a mistake in the release process, the `requires-python` inference changes were not included in that release. Ruff 0.11.0 now includes this change as well as the stabilization of the preview behavior for `PGH004`.
+
+### Breaking changes
+
+- **Changes to how the Python version is inferred when a `target-version` is not specified** ([#16319](https://github.com/astral-sh/ruff/pull/16319))
+
+    In previous versions of Ruff, you could specify your Python version with:
+
+    - The `target-version` option in a `ruff.toml` file or the `[tool.ruff]` section of a pyproject.toml file.
+    - The `project.requires-python` field in a `pyproject.toml` file with a `[tool.ruff]` section.
+
+    These options worked well in most cases, and are still recommended for fine control of the Python version. However, because of the way Ruff discovers config files, `pyproject.toml` files without a `[tool.ruff]` section would be ignored, including the `requires-python` setting. Ruff would then use the default Python version (3.9 as of this writing) instead, which is surprising when you've attempted to request another version.
+
+    In v0.10, config discovery has been updated to address this issue:
+
+    - If Ruff finds a `ruff.toml` file without a `target-version`, it will check
+        for a `pyproject.toml` file in the same directory and respect its
+        `requires-python` version, even if it does not contain a `[tool.ruff]`
+        section.
+    - If Ruff finds a user-level configuration, the `requires-python` field of the closest `pyproject.toml` in a parent directory will take precedence.
+    - If there is no config file (`ruff.toml`or `pyproject.toml` with a
+        `[tool.ruff]` section) in the directory of the file being checked, Ruff will
+        search for the closest `pyproject.toml` in the parent directories and use its
+        `requires-python` setting.
+
+### Stabilization
+
+The following behaviors have been stabilized:
+
+- [`blanket-noqa`](https://docs.astral.sh/ruff/rules/blanket-noqa/) (`PGH004`): Also detect blanked file-level noqa comments (and not just line level comments).
+
+### Preview features
+
+- [syntax-errors] Tuple unpacking in `for` statement iterator clause before Python 3.9 ([#16558](https://github.com/astral-sh/ruff/pull/16558))
+
+## 0.11.1
+
+### Preview features
+
+- \[`airflow`\] Add `chain`, `chain_linear` and `cross_downstream` for `AIR302` ([#16647](https://github.com/astral-sh/ruff/pull/16647))
+- [syntax-errors] Improve error message and range for pre-PEP-614 decorator syntax errors ([#16581](https://github.com/astral-sh/ruff/pull/16581))
+- [syntax-errors] PEP 701 f-strings before Python 3.12 ([#16543](https://github.com/astral-sh/ruff/pull/16543))
+- [syntax-errors] Parenthesized context managers before Python 3.9 ([#16523](https://github.com/astral-sh/ruff/pull/16523))
+- [syntax-errors] Star annotations before Python 3.11 ([#16545](https://github.com/astral-sh/ruff/pull/16545))
+- [syntax-errors] Star expression in index before Python 3.11 ([#16544](https://github.com/astral-sh/ruff/pull/16544))
+- [syntax-errors] Unparenthesized assignment expressions in sets and indexes ([#16404](https://github.com/astral-sh/ruff/pull/16404))
+
+### Bug fixes
+
+- Server: Allow `FixAll` action in presence of version-specific syntax errors ([#16848](https://github.com/astral-sh/ruff/pull/16848))
+- \[`flake8-bandit`\] Allow raw strings in `suspicious-mark-safe-usage` (`S308`) #16702 ([#16770](https://github.com/astral-sh/ruff/pull/16770))
+- \[`refurb`\] Avoid panicking `unwrap` in `verbose-decimal-constructor` (`FURB157`) ([#16777](https://github.com/astral-sh/ruff/pull/16777))
+- \[`refurb`\] Fix starred expressions fix (`FURB161`) ([#16550](https://github.com/astral-sh/ruff/pull/16550))
+- Fix `--statistics` reporting for unsafe fixes ([#16756](https://github.com/astral-sh/ruff/pull/16756))
+
+### Rule changes
+
+- \[`flake8-executables`\] Allow `uv run` in shebang line for `shebang-missing-python` (`EXE003`) ([#16849](https://github.com/astral-sh/ruff/pull/16849),[#16855](https://github.com/astral-sh/ruff/pull/16855))
+
+### CLI
+
+- Add `--exit-non-zero-on-format` ([#16009](https://github.com/astral-sh/ruff/pull/16009))
+
+### Documentation
+
+- Update Ruff tutorial to avoid non-existent fix in `__init__.py` ([#16818](https://github.com/astral-sh/ruff/pull/16818))
+- \[`flake8-gettext`\] Swap `format-` and `printf-in-get-text-func-call` examples (`INT002`, `INT003`) ([#16769](https://github.com/astral-sh/ruff/pull/16769))
+
+## 0.11.2
+
+### Preview features
+
+- [syntax-errors] Fix false-positive syntax errors emitted for annotations on variadic parameters before Python 3.11 ([#16878](https://github.com/astral-sh/ruff/pull/16878))
+
+## 0.11.3
+
+### Preview features
+
+- \[`airflow`\] Add more autofixes for `AIR302` ([#16876](https://github.com/astral-sh/ruff/pull/16876), [#16977](https://github.com/astral-sh/ruff/pull/16977), [#16976](https://github.com/astral-sh/ruff/pull/16976), [#16965](https://github.com/astral-sh/ruff/pull/16965))
+- \[`airflow`\] Move `AIR301` to `AIR002` ([#16978](https://github.com/astral-sh/ruff/pull/16978))
+- \[`airflow`\] Move `AIR302` to `AIR301` and `AIR303` to `AIR302` ([#17151](https://github.com/astral-sh/ruff/pull/17151))
+- \[`flake8-bandit`\] Mark `str` and `list[str]` literals as trusted input (`S603`) ([#17136](https://github.com/astral-sh/ruff/pull/17136))
+- \[`ruff`\] Support slices in `RUF005` ([#17078](https://github.com/astral-sh/ruff/pull/17078))
+- [syntax-errors] Start detecting compile-time syntax errors ([#16106](https://github.com/astral-sh/ruff/pull/16106))
+- [syntax-errors] Duplicate type parameter names ([#16858](https://github.com/astral-sh/ruff/pull/16858))
+- [syntax-errors] Irrefutable `case` pattern before final case ([#16905](https://github.com/astral-sh/ruff/pull/16905))
+- [syntax-errors] Multiple assignments in `case` pattern ([#16957](https://github.com/astral-sh/ruff/pull/16957))
+- [syntax-errors] Single starred assignment target ([#17024](https://github.com/astral-sh/ruff/pull/17024))
+- [syntax-errors] Starred expressions in `return`, `yield`, and `for` ([#17134](https://github.com/astral-sh/ruff/pull/17134))
+- [syntax-errors] Store to or delete `__debug__` ([#16984](https://github.com/astral-sh/ruff/pull/16984))
+
+### Bug fixes
+
+- Error instead of `panic!` when running Ruff from a deleted directory (#16903) ([#17054](https://github.com/astral-sh/ruff/pull/17054))
+- [syntax-errors] Fix false positive for parenthesized tuple index ([#16948](https://github.com/astral-sh/ruff/pull/16948))
+
+### CLI
+
+- Check `pyproject.toml` correctly when it is passed via stdin ([#16971](https://github.com/astral-sh/ruff/pull/16971))
+
+### Configuration
+
+- \[`flake8-import-conventions`\] Add import `numpy.typing as npt` to default `flake8-import-conventions.aliases` ([#17133](https://github.com/astral-sh/ruff/pull/17133))
+
+### Documentation
+
+- \[`refurb`\] Document why `UserDict`, `UserList`, and `UserString` are preferred over `dict`, `list`, and `str` (`FURB189`) ([#16927](https://github.com/astral-sh/ruff/pull/16927))
+
+## 0.11.4
+
+### Preview features
+
+- \[`ruff`\] Implement `invalid-rule-code` as `RUF102` ([#17138](https://github.com/astral-sh/ruff/pull/17138))
+- [syntax-errors] Detect duplicate keys in `match` mapping patterns ([#17129](https://github.com/astral-sh/ruff/pull/17129))
+- [syntax-errors] Detect duplicate attributes in `match` class patterns ([#17186](https://github.com/astral-sh/ruff/pull/17186))
+- [syntax-errors] Detect invalid syntax in annotations ([#17101](https://github.com/astral-sh/ruff/pull/17101))
+
+### Bug fixes
+
+- [syntax-errors] Fix multiple assignment error for class fields in `match` patterns ([#17184](https://github.com/astral-sh/ruff/pull/17184))
+- Don't skip visiting non-tuple slice in `typing.Annotated` subscripts ([#17201](https://github.com/astral-sh/ruff/pull/17201))
+
+## 0.11.5
+
+### Preview features
+
+- \[`airflow`\] Add missing `AIR302` attribute check ([#17115](https://github.com/astral-sh/ruff/pull/17115))
+- \[`airflow`\] Expand module path check to individual symbols (`AIR302`) ([#17278](https://github.com/astral-sh/ruff/pull/17278))
+- \[`airflow`\] Extract `AIR312` from `AIR302` rules (`AIR302`, `AIR312`) ([#17152](https://github.com/astral-sh/ruff/pull/17152))
+- \[`airflow`\] Update outdated `AIR301`, `AIR302` rules ([#17123](https://github.com/astral-sh/ruff/pull/17123))
+- [syntax-errors] Async comprehension in sync comprehension ([#17177](https://github.com/astral-sh/ruff/pull/17177))
+- [syntax-errors] Check annotations in annotated assignments ([#17283](https://github.com/astral-sh/ruff/pull/17283))
+- [syntax-errors] Extend annotation checks to `await` ([#17282](https://github.com/astral-sh/ruff/pull/17282))
+
+### Bug fixes
+
+- \[`flake8-pie`\] Avoid false positive for multiple assignment with `auto()` (`PIE796`) ([#17274](https://github.com/astral-sh/ruff/pull/17274))
+
+### Rule changes
+
+- \[`ruff`\] Fix `RUF100` to detect unused file-level `noqa` directives with specific codes (#17042) ([#17061](https://github.com/astral-sh/ruff/pull/17061))
+- \[`flake8-pytest-style`\] Avoid false positive for legacy form of `pytest.raises` (`PT011`) ([#17231](https://github.com/astral-sh/ruff/pull/17231))
+
+### Documentation
+
+- Fix formatting of "See Style Guide" link ([#17272](https://github.com/astral-sh/ruff/pull/17272))
+
+## 0.11.6
+
+### Preview features
+
+- Avoid adding whitespace to the end of a docstring after an escaped quote ([#17216](https://github.com/astral-sh/ruff/pull/17216))
+- \[`airflow`\] Extract `AIR311` from `AIR301` rules (`AIR301`, `AIR311`) ([#17310](https://github.com/astral-sh/ruff/pull/17310), [#17422](https://github.com/astral-sh/ruff/pull/17422))
+
+### Bug fixes
+
+- Raise syntax error when `\` is at end of file ([#17409](https://github.com/astral-sh/ruff/pull/17409))
+
+## 0.11.7
+
+### Preview features
+
+- \[`airflow`\] Apply auto fixes to cases where the names have changed in Airflow 3 (`AIR301`) ([#17355](https://github.com/astral-sh/ruff/pull/17355))
+- \[`perflint`\] Implement fix for `manual-dict-comprehension` (`PERF403`) ([#16719](https://github.com/astral-sh/ruff/pull/16719))
+- [syntax-errors] Make duplicate parameter names a semantic error ([#17131](https://github.com/astral-sh/ruff/pull/17131))
+
+### Bug fixes
+
+- \[`airflow`\] Fix typos in provider package names (`AIR302`, `AIR312`) ([#17574](https://github.com/astral-sh/ruff/pull/17574))
+- \[`flake8-type-checking`\] Visit keyword arguments in checks involving `typing.cast`/`typing.NewType` arguments ([#17538](https://github.com/astral-sh/ruff/pull/17538))
+- \[`pyupgrade`\] Preserve parenthesis when fixing native literals containing newlines (`UP018`) ([#17220](https://github.com/astral-sh/ruff/pull/17220))
+- \[`refurb`\] Mark the `FURB161` fix unsafe except for integers and booleans ([#17240](https://github.com/astral-sh/ruff/pull/17240))
+
+### Rule changes
+
+- \[`perflint`\] Allow list function calls to be replaced with a comprehension (`PERF401`) ([#17519](https://github.com/astral-sh/ruff/pull/17519))
+- \[`pycodestyle`\] Auto-fix redundant boolean comparison (`E712`) ([#17090](https://github.com/astral-sh/ruff/pull/17090))
+- \[`pylint`\] make fix unsafe if delete comments (`PLR1730`) ([#17459](https://github.com/astral-sh/ruff/pull/17459))
+
+### Documentation
+
+- Add fix safety sections to docs for several rules ([#17410](https://github.com/astral-sh/ruff/pull/17410),[#17440](https://github.com/astral-sh/ruff/pull/17440),[#17441](https://github.com/astral-sh/ruff/pull/17441),[#17443](https://github.com/astral-sh/ruff/pull/17443),[#17444](https://github.com/astral-sh/ruff/pull/17444))
+
+## 0.11.8
+
+### Preview features
+
+- \[`airflow`\] Apply auto fixes to cases where the names have changed in Airflow 3 (`AIR302`, `AIR311`) ([#17553](https://github.com/astral-sh/ruff/pull/17553), [#17570](https://github.com/astral-sh/ruff/pull/17570), [#17571](https://github.com/astral-sh/ruff/pull/17571))
+- \[`airflow`\] Extend `AIR301` rule ([#17598](https://github.com/astral-sh/ruff/pull/17598))
+- \[`airflow`\] Update existing `AIR302` rules with better suggestions ([#17542](https://github.com/astral-sh/ruff/pull/17542))
+- \[`refurb`\] Mark fix as safe for `readlines-in-for` (`FURB129`) ([#17644](https://github.com/astral-sh/ruff/pull/17644))
+- [syntax-errors] `nonlocal` declaration at module level ([#17559](https://github.com/astral-sh/ruff/pull/17559))
+- [syntax-errors] Detect single starred expression assignment `x = *y` ([#17624](https://github.com/astral-sh/ruff/pull/17624))
+
+### Bug fixes
+
+- \[`flake8-pyi`\] Ensure `Literal[None,] | Literal[None,]` is not autofixed to `None | None` (`PYI061`) ([#17659](https://github.com/astral-sh/ruff/pull/17659))
+- \[`flake8-use-pathlib`\] Avoid suggesting `Path.iterdir()` for `os.listdir` with file descriptor (`PTH208`) ([#17715](https://github.com/astral-sh/ruff/pull/17715))
+- \[`flake8-use-pathlib`\] Fix `PTH104` false positive when `rename` is passed a file descriptor ([#17712](https://github.com/astral-sh/ruff/pull/17712))
+- \[`flake8-use-pathlib`\] Fix `PTH116` false positive when `stat` is passed a file descriptor ([#17709](https://github.com/astral-sh/ruff/pull/17709))
+- \[`flake8-use-pathlib`\] Fix `PTH123` false positive when `open` is passed a file descriptor from a function call ([#17705](https://github.com/astral-sh/ruff/pull/17705))
+- \[`pycodestyle`\] Fix duplicated diagnostic in `E712` ([#17651](https://github.com/astral-sh/ruff/pull/17651))
+- \[`pylint`\] Detect `global` declarations in module scope (`PLE0118`) ([#17411](https://github.com/astral-sh/ruff/pull/17411))
+- [syntax-errors] Make `async-comprehension-in-sync-comprehension` more specific ([#17460](https://github.com/astral-sh/ruff/pull/17460))
+
+### Configuration
+
+- Add option to disable `typing_extensions` imports ([#17611](https://github.com/astral-sh/ruff/pull/17611))
+
+### Documentation
+
+- Fix example syntax for the `lint.pydocstyle.ignore-var-parameters` option ([#17740](https://github.com/astral-sh/ruff/pull/17740))
+- Add fix safety sections (`ASYNC116`, `FLY002`, `D200`, `RUF005`, `RUF017`, `RUF027`, `RUF028`, `RUF057`) ([#17497](https://github.com/astral-sh/ruff/pull/17497), [#17496](https://github.com/astral-sh/ruff/pull/17496), [#17502](https://github.com/astral-sh/ruff/pull/17502), [#17484](https://github.com/astral-sh/ruff/pull/17484), [#17480](https://github.com/astral-sh/ruff/pull/17480), [#17485](https://github.com/astral-sh/ruff/pull/17485), [#17722](https://github.com/astral-sh/ruff/pull/17722), [#17483](https://github.com/astral-sh/ruff/pull/17483))
+
+### Other changes
+
+- Add Python 3.14 to configuration options ([#17647](https://github.com/astral-sh/ruff/pull/17647))
+- Make syntax error for unparenthesized except tuples version specific to before 3.14 ([#17660](https://github.com/astral-sh/ruff/pull/17660))
+
+## 0.11.9
+
+### Preview features
+
+- Default to latest supported Python version for version-related syntax errors ([#17529](https://github.com/astral-sh/ruff/pull/17529))
+- Implement deferred annotations for Python 3.14 ([#17658](https://github.com/astral-sh/ruff/pull/17658))
+- \[`airflow`\] Fix `SQLTableCheckOperator` typo (`AIR302`) ([#17946](https://github.com/astral-sh/ruff/pull/17946))
+- \[`airflow`\] Remove `airflow.utils.dag_parsing_context.get_parsing_context` (`AIR301`) ([#17852](https://github.com/astral-sh/ruff/pull/17852))
+- \[`airflow`\] Skip attribute check in try catch block (`AIR301`) ([#17790](https://github.com/astral-sh/ruff/pull/17790))
+- \[`flake8-bandit`\] Mark tuples of string literals as trusted input in `S603` ([#17801](https://github.com/astral-sh/ruff/pull/17801))
+- \[`isort`\] Check full module path against project root(s) when categorizing first-party imports ([#16565](https://github.com/astral-sh/ruff/pull/16565))
+- \[`ruff`\] Add new rule `in-empty-collection` (`RUF060`) ([#16480](https://github.com/astral-sh/ruff/pull/16480))
+
+### Bug fixes
+
+- Fix missing `combine` call for `lint.typing-extensions` setting ([#17823](https://github.com/astral-sh/ruff/pull/17823))
+- \[`flake8-async`\] Fix module name in `ASYNC110`, `ASYNC115`, and `ASYNC116` fixes ([#17774](https://github.com/astral-sh/ruff/pull/17774))
+- \[`pyupgrade`\] Add spaces between tokens as necessary to avoid syntax errors in `UP018` autofix ([#17648](https://github.com/astral-sh/ruff/pull/17648))
+- \[`refurb`\] Fix false positive for float and complex numbers in `FURB116` ([#17661](https://github.com/astral-sh/ruff/pull/17661))
+- [parser] Flag single unparenthesized generator expr with trailing comma in arguments. ([#17893](https://github.com/astral-sh/ruff/pull/17893))
+
+### Documentation
+
+- Add instructions on how to upgrade to a newer Rust version ([#17928](https://github.com/astral-sh/ruff/pull/17928))
+- Update code of conduct email address ([#17875](https://github.com/astral-sh/ruff/pull/17875))
+- Add fix safety sections to `PLC2801`, `PLR1722`, and `RUF013` ([#17825](https://github.com/astral-sh/ruff/pull/17825), [#17826](https://github.com/astral-sh/ruff/pull/17826), [#17759](https://github.com/astral-sh/ruff/pull/17759))
+- Add link to `check-typed-exception` from `S110` and `S112` ([#17786](https://github.com/astral-sh/ruff/pull/17786))
+
+### Other changes
+
+- Allow passing a virtual environment to `ruff analyze graph` ([#17743](https://github.com/astral-sh/ruff/pull/17743))
+
+## 0.11.10
+
+### Preview features
+
+- \[`ruff`\] Implement a recursive check for `RUF060` ([#17976](https://github.com/astral-sh/ruff/pull/17976))
+- \[`airflow`\] Enable autofixes for `AIR301` and `AIR311` ([#17941](https://github.com/astral-sh/ruff/pull/17941))
+- \[`airflow`\] Apply try catch guard to all `AIR3` rules ([#17887](https://github.com/astral-sh/ruff/pull/17887))
+- \[`airflow`\] Extend `AIR311` rules ([#17913](https://github.com/astral-sh/ruff/pull/17913))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Ignore `B028` if `skip_file_prefixes` is present ([#18047](https://github.com/astral-sh/ruff/pull/18047))
+- \[`flake8-pie`\] Mark autofix for `PIE804` as unsafe if the dictionary contains comments ([#18046](https://github.com/astral-sh/ruff/pull/18046))
+- \[`flake8-simplify`\] Correct behavior for `str.split`/`rsplit` with `maxsplit=0` (`SIM905`) ([#18075](https://github.com/astral-sh/ruff/pull/18075))
+- \[`flake8-simplify`\] Fix `SIM905` autofix for `rsplit` creating a reversed list literal ([#18045](https://github.com/astral-sh/ruff/pull/18045))
+- \[`flake8-use-pathlib`\] Suppress diagnostics for all `os.*` functions that have the `dir_fd` parameter (`PTH`) ([#17968](https://github.com/astral-sh/ruff/pull/17968))
+- \[`refurb`\] Mark autofix as safe only for number literals (`FURB116`) ([#17692](https://github.com/astral-sh/ruff/pull/17692))
+
+### Rule changes
+
+- \[`flake8-bandit`\] Skip `S608` for expressionless f-strings ([#17999](https://github.com/astral-sh/ruff/pull/17999))
+- \[`flake8-pytest-style`\] Don't recommend `usefixtures` for `parametrize` values (`PT019`) ([#17650](https://github.com/astral-sh/ruff/pull/17650))
+- \[`pyupgrade`\] Add `resource.error` as deprecated alias of `OSError` (`UP024`) ([#17933](https://github.com/astral-sh/ruff/pull/17933))
+
+### CLI
+
+- Disable jemalloc on Android ([#18033](https://github.com/astral-sh/ruff/pull/18033))
+
+### Documentation
+
+- Update Neovim setup docs ([#18108](https://github.com/astral-sh/ruff/pull/18108))
+- \[`flake8-simplify`\] Add fix safety section (`SIM103`) ([#18086](https://github.com/astral-sh/ruff/pull/18086))
+- \[`flake8-simplify`\] Add fix safety section (`SIM112`) ([#18099](https://github.com/astral-sh/ruff/pull/18099))
+- \[`pylint`\] Add fix safety section (`PLC0414`) ([#17802](https://github.com/astral-sh/ruff/pull/17802))
+- \[`pylint`\] Add fix safety section (`PLE4703`) ([#17824](https://github.com/astral-sh/ruff/pull/17824))
+- \[`pylint`\] Add fix safety section (`PLW1514`) ([#17932](https://github.com/astral-sh/ruff/pull/17932))
+- \[`pylint`\] Add fix safety section (`PLW3301`) ([#17878](https://github.com/astral-sh/ruff/pull/17878))
+- \[`ruff`\] Add fix safety section (`RUF007`) ([#17755](https://github.com/astral-sh/ruff/pull/17755))
+- \[`ruff`\] Add fix safety section (`RUF033`) ([#17760](https://github.com/astral-sh/ruff/pull/17760))
+
+## 0.11.11
+
+### Preview features
+
+- \[`airflow`\] Add autofixes for `AIR302` and `AIR312` ([#17942](https://github.com/astral-sh/ruff/pull/17942))
+- \[`airflow`\] Move rules from `AIR312` to `AIR302` ([#17940](https://github.com/astral-sh/ruff/pull/17940))
+- \[`airflow`\] Update `AIR301` and `AIR311` with the latest Airflow implementations ([#17985](https://github.com/astral-sh/ruff/pull/17985))
+- \[`flake8-simplify`\] Enable fix in preview mode (`SIM117`) ([#18208](https://github.com/astral-sh/ruff/pull/18208))
+
+### Bug fixes
+
+- Fix inconsistent formatting of match-case on `[]` and `_` ([#18147](https://github.com/astral-sh/ruff/pull/18147))
+- \[`pylint`\] Fix `PLW1514` not recognizing the `encoding` positional argument of `codecs.open` ([#18109](https://github.com/astral-sh/ruff/pull/18109))
+
+### CLI
+
+- Add full option name in formatter warning ([#18217](https://github.com/astral-sh/ruff/pull/18217))
+
+### Documentation
+
+- Fix rendering of admonition in docs ([#18163](https://github.com/astral-sh/ruff/pull/18163))
+- \[`flake8-print`\] Improve print/pprint docs for `T201` and `T203` ([#18130](https://github.com/astral-sh/ruff/pull/18130))
+- \[`flake8-simplify`\] Add fix safety section (`SIM110`,`SIM210`) ([#18114](https://github.com/astral-sh/ruff/pull/18114),[#18100](https://github.com/astral-sh/ruff/pull/18100))
+- \[`pylint`\] Fix docs example that produced different output (`PLW0603`) ([#18216](https://github.com/astral-sh/ruff/pull/18216))
+
+## 0.11.12
+
+### Preview features
+
+- \[`airflow`\] Revise fix titles (`AIR3`) ([#18215](https://github.com/astral-sh/ruff/pull/18215))
+- \[`pylint`\] Implement `missing-maxsplit-arg` (`PLC0207`) ([#17454](https://github.com/astral-sh/ruff/pull/17454))
+- \[`pyupgrade`\] New rule `UP050` (`useless-class-metaclass-type`) ([#18334](https://github.com/astral-sh/ruff/pull/18334))
+- \[`flake8-use-pathlib`\] Replace `os.symlink` with `Path.symlink_to` (`PTH211`) ([#18337](https://github.com/astral-sh/ruff/pull/18337))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Ignore `__debug__` attribute in `B010` ([#18357](https://github.com/astral-sh/ruff/pull/18357))
+- \[`flake8-async`\] Fix `anyio.sleep` argument name (`ASYNC115`, `ASYNC116`) ([#18262](https://github.com/astral-sh/ruff/pull/18262))
+- \[`refurb`\] Fix `FURB129` autofix generating invalid syntax ([#18235](https://github.com/astral-sh/ruff/pull/18235))
+
+### Rule changes
+
+- \[`flake8-implicit-str-concat`\] Add autofix for `ISC003` ([#18256](https://github.com/astral-sh/ruff/pull/18256))
+- \[`pycodestyle`\] Improve the diagnostic message for `E712` ([#18328](https://github.com/astral-sh/ruff/pull/18328))
+- \[`flake8-2020`\] Fix diagnostic message for `!=` comparisons (`YTT201`) ([#18293](https://github.com/astral-sh/ruff/pull/18293))
+- \[`pyupgrade`\] Make fix unsafe if it deletes comments (`UP010`) ([#18291](https://github.com/astral-sh/ruff/pull/18291))
+
+### Documentation
+
+- Simplify rules table to improve readability ([#18297](https://github.com/astral-sh/ruff/pull/18297))
+- Update editor integrations link in README ([#17977](https://github.com/astral-sh/ruff/pull/17977))
+- \[`flake8-bugbear`\] Add fix safety section (`B006`) ([#17652](https://github.com/astral-sh/ruff/pull/17652))
+
+## 0.11.13
+
+### Preview features
+
+- \[`airflow`\] Add unsafe fix for module moved cases (`AIR301`,`AIR311`,`AIR312`,`AIR302`) ([#18367](https://github.com/astral-sh/ruff/pull/18367),[#18366](https://github.com/astral-sh/ruff/pull/18366),[#18363](https://github.com/astral-sh/ruff/pull/18363),[#18093](https://github.com/astral-sh/ruff/pull/18093))
+- \[`refurb`\] Add coverage of `set` and `frozenset` calls (`FURB171`) ([#18035](https://github.com/astral-sh/ruff/pull/18035))
+- \[`refurb`\] Mark `FURB180` fix unsafe when class has bases ([#18149](https://github.com/astral-sh/ruff/pull/18149))
+
+### Bug fixes
+
+- \[`perflint`\] Fix missing parentheses for lambda and ternary conditions (`PERF401`, `PERF403`) ([#18412](https://github.com/astral-sh/ruff/pull/18412))
+- \[`pyupgrade`\] Apply `UP035` only on py313+ for `get_type_hints()` ([#18476](https://github.com/astral-sh/ruff/pull/18476))
+- \[`pyupgrade`\] Make fix unsafe if it deletes comments (`UP004`,`UP050`) ([#18393](https://github.com/astral-sh/ruff/pull/18393), [#18390](https://github.com/astral-sh/ruff/pull/18390))
+
+### Rule changes
+
+- \[`fastapi`\] Avoid false positive for class dependencies (`FAST003`) ([#18271](https://github.com/astral-sh/ruff/pull/18271))
+
+### Documentation
+
+- Update editor setup docs for Neovim and Vim ([#18324](https://github.com/astral-sh/ruff/pull/18324))
+
+### Other changes
+
+- Support Python 3.14 template strings (t-strings) in formatter and parser ([#17851](https://github.com/astral-sh/ruff/pull/17851))

changelogs/0.2.x.md

@@ -0,0 +1,271 @@
+# Changelog 0.2.x
+
+## 0.2.0
+
+### Breaking changes
+
+- The `NURSERY` selector cannot be used anymore
+- Legacy selection of nursery rules by exact codes is no longer allowed without preview enabled
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+### Deprecations
+
+The following rules are now deprecated:
+
+- [`missing-type-self`](https://docs.astral.sh/ruff/rules/missing-type-self/) (`ANN101`)
+- [`missing-type-cls`](https://docs.astral.sh/ruff/rules/missing-type-cls/) (`ANN102`)
+
+The following command line options are now deprecated:
+
+- `--show-source`; use `--output-format full` instead
+- `--no-show-source`; use `--output-format concise` instead
+- `--output-format text`; use `full` or `concise` instead
+
+The following settings have moved and the previous name is deprecated:
+
+- `ruff.allowed-confusables` → [`ruff.lint.allowed-confusables`](https://docs.astral.sh//ruff/settings/#lint_allowed-confusables)
+- `ruff.dummy-variable-rgx` → [`ruff.lint.dummy-variable-rgx`](https://docs.astral.sh//ruff/settings/#lint_dummy-variable-rgx)
+- `ruff.explicit-preview-rules` → [`ruff.lint.explicit-preview-rules`](https://docs.astral.sh//ruff/settings/#lint_explicit-preview-rules)
+- `ruff.extend-fixable` → [`ruff.lint.extend-fixable`](https://docs.astral.sh//ruff/settings/#lint_extend-fixable)
+- `ruff.extend-ignore` → [`ruff.lint.extend-ignore`](https://docs.astral.sh//ruff/settings/#lint_extend-ignore)
+- `ruff.extend-per-file-ignores` → [`ruff.lint.extend-per-file-ignores`](https://docs.astral.sh//ruff/settings/#lint_extend-per-file-ignores)
+- `ruff.extend-safe-fixes` → [`ruff.lint.extend-safe-fixes`](https://docs.astral.sh//ruff/settings/#lint_extend-safe-fixes)
+- `ruff.extend-select` → [`ruff.lint.extend-select`](https://docs.astral.sh//ruff/settings/#lint_extend-select)
+- `ruff.extend-unfixable` → [`ruff.lint.extend-unfixable`](https://docs.astral.sh//ruff/settings/#lint_extend-unfixable)
+- `ruff.extend-unsafe-fixes` → [`ruff.lint.extend-unsafe-fixes`](https://docs.astral.sh//ruff/settings/#lint_extend-unsafe-fixes)
+- `ruff.external` → [`ruff.lint.external`](https://docs.astral.sh//ruff/settings/#lint_external)
+- `ruff.fixable` → [`ruff.lint.fixable`](https://docs.astral.sh//ruff/settings/#lint_fixable)
+- `ruff.flake8-annotations` → [`ruff.lint.flake8-annotations`](https://docs.astral.sh//ruff/settings/#lint_flake8-annotations)
+- `ruff.flake8-bandit` → [`ruff.lint.flake8-bandit`](https://docs.astral.sh//ruff/settings/#lint_flake8-bandit)
+- `ruff.flake8-bugbear` → [`ruff.lint.flake8-bugbear`](https://docs.astral.sh//ruff/settings/#lint_flake8-bugbear)
+- `ruff.flake8-builtins` → [`ruff.lint.flake8-builtins`](https://docs.astral.sh//ruff/settings/#lint_flake8-builtins)
+- `ruff.flake8-comprehensions` → [`ruff.lint.flake8-comprehensions`](https://docs.astral.sh//ruff/settings/#lint_flake8-comprehensions)
+- `ruff.flake8-copyright` → [`ruff.lint.flake8-copyright`](https://docs.astral.sh//ruff/settings/#lint_flake8-copyright)
+- `ruff.flake8-errmsg` → [`ruff.lint.flake8-errmsg`](https://docs.astral.sh//ruff/settings/#lint_flake8-errmsg)
+- `ruff.flake8-gettext` → [`ruff.lint.flake8-gettext`](https://docs.astral.sh//ruff/settings/#lint_flake8-gettext)
+- `ruff.flake8-implicit-str-concat` → [`ruff.lint.flake8-implicit-str-concat`](https://docs.astral.sh//ruff/settings/#lint_flake8-implicit-str-concat)
+- `ruff.flake8-import-conventions` → [`ruff.lint.flake8-import-conventions`](https://docs.astral.sh//ruff/settings/#lint_flake8-import-conventions)
+- `ruff.flake8-pytest-style` → [`ruff.lint.flake8-pytest-style`](https://docs.astral.sh//ruff/settings/#lint_flake8-pytest-style)
+- `ruff.flake8-quotes` → [`ruff.lint.flake8-quotes`](https://docs.astral.sh//ruff/settings/#lint_flake8-quotes)
+- `ruff.flake8-self` → [`ruff.lint.flake8-self`](https://docs.astral.sh//ruff/settings/#lint_flake8-self)
+- `ruff.flake8-tidy-imports` → [`ruff.lint.flake8-tidy-imports`](https://docs.astral.sh//ruff/settings/#lint_flake8-tidy-imports)
+- `ruff.flake8-type-checking` → [`ruff.lint.flake8-type-checking`](https://docs.astral.sh//ruff/settings/#lint_flake8-type-checking)
+- `ruff.flake8-unused-arguments` → [`ruff.lint.flake8-unused-arguments`](https://docs.astral.sh//ruff/settings/#lint_flake8-unused-arguments)
+- `ruff.ignore` → [`ruff.lint.ignore`](https://docs.astral.sh//ruff/settings/#lint_ignore)
+- `ruff.ignore-init-module-imports` → [`ruff.lint.ignore-init-module-imports`](https://docs.astral.sh//ruff/settings/#lint_ignore-init-module-imports)
+- `ruff.isort` → [`ruff.lint.isort`](https://docs.astral.sh//ruff/settings/#lint_isort)
+- `ruff.logger-objects` → [`ruff.lint.logger-objects`](https://docs.astral.sh//ruff/settings/#lint_logger-objects)
+- `ruff.mccabe` → [`ruff.lint.mccabe`](https://docs.astral.sh//ruff/settings/#lint_mccabe)
+- `ruff.pep8-naming` → [`ruff.lint.pep8-naming`](https://docs.astral.sh//ruff/settings/#lint_pep8-naming)
+- `ruff.per-file-ignores` → [`ruff.lint.per-file-ignores`](https://docs.astral.sh//ruff/settings/#lint_per-file-ignores)
+- `ruff.pycodestyle` → [`ruff.lint.pycodestyle`](https://docs.astral.sh//ruff/settings/#lint_pycodestyle)
+- `ruff.pydocstyle` → [`ruff.lint.pydocstyle`](https://docs.astral.sh//ruff/settings/#lint_pydocstyle)
+- `ruff.pyflakes` → [`ruff.lint.pyflakes`](https://docs.astral.sh//ruff/settings/#lint_pyflakes)
+- `ruff.pylint` → [`ruff.lint.pylint`](https://docs.astral.sh//ruff/settings/#lint_pylint)
+- `ruff.pyupgrade` → [`ruff.lint.pyupgrade`](https://docs.astral.sh//ruff/settings/#lint_pyupgrade)
+- `ruff.select` → [`ruff.lint.select`](https://docs.astral.sh//ruff/settings/#lint_select)
+- `ruff.task-tags` → [`ruff.lint.task-tags`](https://docs.astral.sh//ruff/settings/#lint_task-tags)
+- `ruff.typing-modules` → [`ruff.lint.typing-modules`](https://docs.astral.sh//ruff/settings/#lint_typing-modules)
+- `ruff.unfixable` → [`ruff.lint.unfixable`](https://docs.astral.sh//ruff/settings/#lint_unfixable)
+
+### Remapped rules
+
+The following rules have been remapped to new codes:
+
+- [`raise-without-from-inside-except`](https://docs.astral.sh/ruff/rules/raise-without-from-inside-except/): `TRY200` to `B904`
+- [`suspicious-eval-usage`](https://docs.astral.sh/ruff/rules/suspicious-eval-usage/): `PGH001` to `S307`
+- [`logging-warn`](https://docs.astral.sh/ruff/rules/logging-warn/): `PGH002` to `G010`
+- [`static-key-dict-comprehension`](https://docs.astral.sh/ruff/rules/static-key-dict-comprehension): `RUF011` to `B035`
+- [`runtime-string-union`](https://docs.astral.sh/ruff/rules/runtime-string-union): `TCH006` to `TCH010`
+
+### Stabilizations
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`trio-timeout-without-await`](https://docs.astral.sh/ruff/rules/trio-timeout-without-await) (`TRIO100`)
+- [`trio-sync-call`](https://docs.astral.sh/ruff/rules/trio-sync-call) (`TRIO105`)
+- [`trio-async-function-with-timeout`](https://docs.astral.sh/ruff/rules/trio-async-function-with-timeout) (`TRIO109`)
+- [`trio-unneeded-sleep`](https://docs.astral.sh/ruff/rules/trio-unneeded-sleep) (`TRIO110`)
+- [`trio-zero-sleep-call`](https://docs.astral.sh/ruff/rules/trio-zero-sleep-call) (`TRIO115`)
+- [`unnecessary-escaped-quote`](https://docs.astral.sh/ruff/rules/unnecessary-escaped-quote) (`Q004`)
+- [`enumerate-for-loop`](https://docs.astral.sh/ruff/rules/enumerate-for-loop) (`SIM113`)
+- [`zip-dict-keys-and-values`](https://docs.astral.sh/ruff/rules/zip-dict-keys-and-values) (`SIM911`)
+- [`timeout-error-alias`](https://docs.astral.sh/ruff/rules/timeout-error-alias) (`UP041`)
+- [`flask-debug-true`](https://docs.astral.sh/ruff/rules/flask-debug-true) (`S201`)
+- [`tarfile-unsafe-members`](https://docs.astral.sh/ruff/rules/tarfile-unsafe-members) (`S202`)
+- [`ssl-insecure-version`](https://docs.astral.sh/ruff/rules/ssl-insecure-version) (`S502`)
+- [`ssl-with-bad-defaults`](https://docs.astral.sh/ruff/rules/ssl-with-bad-defaults) (`S503`)
+- [`ssl-with-no-version`](https://docs.astral.sh/ruff/rules/ssl-with-no-version) (`S504`)
+- [`weak-cryptographic-key`](https://docs.astral.sh/ruff/rules/weak-cryptographic-key) (`S505`)
+- [`ssh-no-host-key-verification`](https://docs.astral.sh/ruff/rules/ssh-no-host-key-verification) (`S507`)
+- [`django-raw-sql`](https://docs.astral.sh/ruff/rules/django-raw-sql) (`S611`)
+- [`mako-templates`](https://docs.astral.sh/ruff/rules/mako-templates) (`S702`)
+- [`generator-return-from-iter-method`](https://docs.astral.sh/ruff/rules/generator-return-from-iter-method) (`PYI058`)
+- [`runtime-string-union`](https://docs.astral.sh/ruff/rules/runtime-string-union) (`TCH006`)
+- [`numpy2-deprecation`](https://docs.astral.sh/ruff/rules/numpy2-deprecation) (`NPY201`)
+- [`quadratic-list-summation`](https://docs.astral.sh/ruff/rules/quadratic-list-summation) (`RUF017`)
+- [`assignment-in-assert`](https://docs.astral.sh/ruff/rules/assignment-in-assert) (`RUF018`)
+- [`unnecessary-key-check`](https://docs.astral.sh/ruff/rules/unnecessary-key-check) (`RUF019`)
+- [`never-union`](https://docs.astral.sh/ruff/rules/never-union) (`RUF020`)
+- [`direct-logger-instantiation`](https://docs.astral.sh/ruff/rules/direct-logger-instantiation) (`LOG001`)
+- [`invalid-get-logger-argument`](https://docs.astral.sh/ruff/rules/invalid-get-logger-argument) (`LOG002`)
+- [`exception-without-exc-info`](https://docs.astral.sh/ruff/rules/exception-without-exc-info) (`LOG007`)
+- [`undocumented-warn`](https://docs.astral.sh/ruff/rules/undocumented-warn) (`LOG009`)
+
+Fixes for the following rules have been stabilized and are now available without preview:
+
+- [`triple-single-quotes`](https://docs.astral.sh/ruff/rules/triple-single-quotes) (`D300`)
+- [`non-pep604-annotation`](https://docs.astral.sh/ruff/rules/non-pep604-annotation) (`UP007`)
+- [`dict-get-with-none-default`](https://docs.astral.sh/ruff/rules/dict-get-with-none-default) (`SIM910`)
+- [`in-dict-keys`](https://docs.astral.sh/ruff/rules/in-dict-keys) (`SIM118`)
+- [`collapsible-else-if`](https://docs.astral.sh/ruff/rules/collapsible-else-if) (`PLR5501`)
+- [`if-with-same-arms`](https://docs.astral.sh/ruff/rules/if-with-same-arms) (`SIM114`)
+- [`useless-else-on-loop`](https://docs.astral.sh/ruff/rules/useless-else-on-loop) (`PLW0120`)
+- [`unnecessary-literal-union`](https://docs.astral.sh/ruff/rules/unnecessary-literal-union) (`PYI030`)
+- [`unnecessary-spread`](https://docs.astral.sh/ruff/rules/unnecessary-spread) (`PIE800`)
+- [`error-instead-of-exception`](https://docs.astral.sh/ruff/rules/error-instead-of-exception) (`TRY400`)
+- [`redefined-while-unused`](https://docs.astral.sh/ruff/rules/redefined-while-unused) (`F811`)
+- [`duplicate-value`](https://docs.astral.sh/ruff/rules/duplicate-value) (`B033`)
+- [`multiple-imports-on-one-line`](https://docs.astral.sh/ruff/rules/multiple-imports-on-one-line) (`E401`)
+- [`non-pep585-annotation`](https://docs.astral.sh/ruff/rules/non-pep585-annotation) (`UP006`)
+
+Fixes for the following rules have been promoted from unsafe to safe:
+
+- [`unaliased-collections-abc-set-import`](https://docs.astral.sh/ruff/rules/unaliased-collections-abc-set-import) (`PYI025`)
+
+The following behaviors have been stabilized:
+
+- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`) allows `sys.path` modifications between imports
+- [`reimplemented-container-builtin`](https://docs.astral.sh/ruff/rules/reimplemented-container-builtin/) (`PIE807`) includes lambdas that can be replaced with `dict`
+- [`unnecessary-placeholder`](https://docs.astral.sh/ruff/rules/unnecessary-placeholder/) (`PIE790`) applies to unnecessary ellipses (`...`)
+- [`if-else-block-instead-of-dict-get`](https://docs.astral.sh/ruff/rules/if-else-block-instead-of-dict-get/) (`SIM401`) applies to `if-else` expressions
+
+### Preview features
+
+- \[`refurb`\] Implement `metaclass_abcmeta` (`FURB180`) ([#9658](https://github.com/astral-sh/ruff/pull/9658))
+- Implement `blank_line_after_nested_stub_class` preview style ([#9155](https://github.com/astral-sh/ruff/pull/9155))
+- The preview rule [`and-or-ternary`](https://docs.astral.sh/ruff/rules/and-or-ternary) (`PLR1706`) was removed
+
+### Bug fixes
+
+- \[`flake8-async`\] Take `pathlib.Path` into account when analyzing async functions ([#9703](https://github.com/astral-sh/ruff/pull/9703))
+- \[`flake8-return`\] - fix indentation syntax error (`RET505`) ([#9705](https://github.com/astral-sh/ruff/pull/9705))
+- Detect multi-statement lines in else removal ([#9748](https://github.com/astral-sh/ruff/pull/9748))
+- `RUF022`, `RUF023`: never add two trailing commas to the end of a sequence ([#9698](https://github.com/astral-sh/ruff/pull/9698))
+- `RUF023`: Don't sort `__match_args__`, only `__slots__` ([#9724](https://github.com/astral-sh/ruff/pull/9724))
+- \[`flake8-simplify`\] - Fix syntax error in autofix (`SIM114`) ([#9704](https://github.com/astral-sh/ruff/pull/9704))
+- \[`pylint`\] Show verbatim constant in `magic-value-comparison` (`PLR2004`) ([#9694](https://github.com/astral-sh/ruff/pull/9694))
+- Removing trailing whitespace inside multiline strings is unsafe ([#9744](https://github.com/astral-sh/ruff/pull/9744))
+- Support `IfExp` with dual string arms in `invalid-envvar-default` ([#9734](https://github.com/astral-sh/ruff/pull/9734))
+- \[`pylint`\] Add `__mro_entries__` to known dunder methods (`PLW3201`) ([#9706](https://github.com/astral-sh/ruff/pull/9706))
+
+### Documentation
+
+- Removed rules are now retained in the documentation ([#9691](https://github.com/astral-sh/ruff/pull/9691))
+- Deprecated rules are now indicated in the documentation ([#9689](https://github.com/astral-sh/ruff/pull/9689))
+
+## 0.2.1
+
+This release includes support for range formatting (i.e., the ability to format specific lines
+within a source file).
+
+### Preview features
+
+- \[`refurb`\] Implement `missing-f-string-syntax` (`RUF027`) ([#9728](https://github.com/astral-sh/ruff/pull/9728))
+- Format module-level docstrings ([#9725](https://github.com/astral-sh/ruff/pull/9725))
+
+### Formatter
+
+- Add `--range` option to `ruff format` ([#9733](https://github.com/astral-sh/ruff/pull/9733))
+- Don't trim last empty line in docstrings ([#9813](https://github.com/astral-sh/ruff/pull/9813))
+
+### Bug fixes
+
+- Skip empty lines when determining base indentation ([#9795](https://github.com/astral-sh/ruff/pull/9795))
+- Drop `__get__` and `__set__` from `unnecessary-dunder-call` ([#9791](https://github.com/astral-sh/ruff/pull/9791))
+- Respect generic `Protocol` in ellipsis removal ([#9841](https://github.com/astral-sh/ruff/pull/9841))
+- Revert "Use publicly available Apple Silicon runners (#9726)" ([#9834](https://github.com/astral-sh/ruff/pull/9834))
+
+### Performance
+
+- Skip LibCST parsing for standard dedent adjustments ([#9769](https://github.com/astral-sh/ruff/pull/9769))
+- Remove CST-based fixer for `C408` ([#9822](https://github.com/astral-sh/ruff/pull/9822))
+- Add our own ignored-names abstractions ([#9802](https://github.com/astral-sh/ruff/pull/9802))
+- Remove CST-based fixers for `C400`, `C401`, `C410`, and `C418` ([#9819](https://github.com/astral-sh/ruff/pull/9819))
+- Use `AhoCorasick` to speed up quote match ([#9773](https://github.com/astral-sh/ruff/pull/9773))
+- Remove CST-based fixers for `C405` and `C409` ([#9821](https://github.com/astral-sh/ruff/pull/9821))
+- Add fast-path for comment detection ([#9808](https://github.com/astral-sh/ruff/pull/9808))
+- Invert order of checks in `zero-sleep-call` ([#9766](https://github.com/astral-sh/ruff/pull/9766))
+- Short-circuit typing matches based on imports ([#9800](https://github.com/astral-sh/ruff/pull/9800))
+- Run dunder method rule on methods directly ([#9815](https://github.com/astral-sh/ruff/pull/9815))
+- Track top-level module imports in the semantic model ([#9775](https://github.com/astral-sh/ruff/pull/9775))
+- Slight speed-up for lowercase and uppercase identifier checks ([#9798](https://github.com/astral-sh/ruff/pull/9798))
+- Remove LibCST-based fixer for `C403` ([#9818](https://github.com/astral-sh/ruff/pull/9818))
+
+### Documentation
+
+- Update `max-pos-args` example to `max-positional-args` ([#9797](https://github.com/astral-sh/ruff/pull/9797))
+- Fixed example code in `weak_cryptographic_key.rs` ([#9774](https://github.com/astral-sh/ruff/pull/9774))
+- Fix references to deprecated `ANN` rules in changelog ([#9771](https://github.com/astral-sh/ruff/pull/9771))
+- Fix default for `max-positional-args` ([#9838](https://github.com/astral-sh/ruff/pull/9838))
+
+## 0.2.2
+
+Highlights include:
+
+- Initial support formatting f-strings (in `--preview`).
+- Support for overriding arbitrary configuration options via the CLI through an expanded `--config` argument (e.g., `--config "lint.isort.combine-as-imports=false"`).
+- Significant performance improvements in Ruff's lexer, parser, and lint rules.
+
+### Preview features
+
+- Implement minimal f-string formatting ([#9642](https://github.com/astral-sh/ruff/pull/9642))
+- \[`pycodestyle`\] Add blank line(s) rules (`E301`, `E302`, `E303`, `E304`, `E305`, `E306`) ([#9266](https://github.com/astral-sh/ruff/pull/9266))
+- \[`refurb`\] Implement `readlines_in_for` (`FURB129`) ([#9880](https://github.com/astral-sh/ruff/pull/9880))
+
+### Rule changes
+
+- \[`ruff`\] Ensure closing parentheses for multiline sequences are always on their own line (`RUF022`, `RUF023`) ([#9793](https://github.com/astral-sh/ruff/pull/9793))
+- \[`numpy`\] Add missing deprecation violations (`NPY002`) ([#9862](https://github.com/astral-sh/ruff/pull/9862))
+- \[`flake8-bandit`\] Detect `mark_safe` usages in decorators ([#9887](https://github.com/astral-sh/ruff/pull/9887))
+- \[`ruff`\] Expand `asyncio-dangling-task` (`RUF006`) to include `new_event_loop` ([#9976](https://github.com/astral-sh/ruff/pull/9976))
+- \[`flake8-pyi`\] Ignore 'unused' private type dicts in class scopes ([#9952](https://github.com/astral-sh/ruff/pull/9952))
+
+### Formatter
+
+- Docstring formatting: Preserve tab indentation when using `indent-style=tabs` ([#9915](https://github.com/astral-sh/ruff/pull/9915))
+- Disable top-level docstring formatting for notebooks ([#9957](https://github.com/astral-sh/ruff/pull/9957))
+- Stabilize quote-style's `preserve` mode ([#9922](https://github.com/astral-sh/ruff/pull/9922))
+
+### CLI
+
+- Allow arbitrary configuration options to be overridden via the CLI ([#9599](https://github.com/astral-sh/ruff/pull/9599))
+
+### Bug fixes
+
+- Make `show-settings` filters directory-agnostic ([#9866](https://github.com/astral-sh/ruff/pull/9866))
+- Respect duplicates when rewriting type aliases ([#9905](https://github.com/astral-sh/ruff/pull/9905))
+- Respect tuple assignments in typing analyzer ([#9969](https://github.com/astral-sh/ruff/pull/9969))
+- Use atomic write when persisting cache ([#9981](https://github.com/astral-sh/ruff/pull/9981))
+- Use non-parenthesized range for `DebugText` ([#9953](https://github.com/astral-sh/ruff/pull/9953))
+- \[`flake8-simplify`\] Avoid false positive with `async` for loops (`SIM113`) ([#9996](https://github.com/astral-sh/ruff/pull/9996))
+- \[`flake8-trio`\] Respect `async with` in `timeout-without-await` ([#9859](https://github.com/astral-sh/ruff/pull/9859))
+- \[`perflint`\] Catch a wider range of mutations in `PERF101` ([#9955](https://github.com/astral-sh/ruff/pull/9955))
+- \[`pycodestyle`\] Fix `E30X` panics on blank lines with trailing white spaces ([#9907](https://github.com/astral-sh/ruff/pull/9907))
+- \[`pydocstyle`\] Allow using `parameters` as a subsection header (`D405`) ([#9894](https://github.com/astral-sh/ruff/pull/9894))
+- \[`pydocstyle`\] Fix blank-line docstring rules for module-level docstrings ([#9878](https://github.com/astral-sh/ruff/pull/9878))
+- \[`pylint`\] Accept 0.0 and 1.0 as common magic values (`PLR2004`) ([#9964](https://github.com/astral-sh/ruff/pull/9964))
+- \[`pylint`\] Avoid suggesting set rewrites for non-hashable types ([#9956](https://github.com/astral-sh/ruff/pull/9956))
+- \[`ruff`\] Avoid false negatives with string literals inside of method calls (`RUF027`) ([#9865](https://github.com/astral-sh/ruff/pull/9865))
+- \[`ruff`\] Fix panic on with f-string detection (`RUF027`) ([#9990](https://github.com/astral-sh/ruff/pull/9990))
+- \[`ruff`\] Ignore builtins when detecting missing f-strings ([#9849](https://github.com/astral-sh/ruff/pull/9849))
+
+### Performance
+
+- Use `memchr` for string lexing ([#9888](https://github.com/astral-sh/ruff/pull/9888))
+- Use `memchr` for tab-indentation detection ([#9853](https://github.com/astral-sh/ruff/pull/9853))
+- Reduce `Result<Tok, LexicalError>` size by using `Box<str>` instead of `String` ([#9885](https://github.com/astral-sh/ruff/pull/9885))
+- Reduce size of `Expr` from 80 to 64 bytes ([#9900](https://github.com/astral-sh/ruff/pull/9900))
+- Improve trailing comma rule performance ([#9867](https://github.com/astral-sh/ruff/pull/9867))
+- Remove unnecessary string cloning from the parser ([#9884](https://github.com/astral-sh/ruff/pull/9884))

changelogs/0.3.x.md

@@ -0,0 +1,308 @@
+# Changelog 0.3.x
+
+## 0.3.0
+
+This release introduces the new Ruff formatter 2024.2 style and adds a new lint rule to
+detect invalid formatter suppression comments.
+
+### Preview features
+
+- \[`flake8-bandit`\] Remove suspicious-lxml-import (`S410`) ([#10154](https://github.com/astral-sh/ruff/pull/10154))
+- \[`pycodestyle`\] Allow `os.environ` modifications between imports (`E402`) ([#10066](https://github.com/astral-sh/ruff/pull/10066))
+- \[`pycodestyle`\] Don't warn about a single whitespace character before a comma in a tuple (`E203`) ([#10094](https://github.com/astral-sh/ruff/pull/10094))
+
+### Rule changes
+
+- \[`eradicate`\] Detect commented out `case` statements (`ERA001`) ([#10055](https://github.com/astral-sh/ruff/pull/10055))
+- \[`eradicate`\] Detect single-line code for `try:`, `except:`, etc. (`ERA001`) ([#10057](https://github.com/astral-sh/ruff/pull/10057))
+- \[`flake8-boolean-trap`\] Allow boolean positionals in `__post_init__` ([#10027](https://github.com/astral-sh/ruff/pull/10027))
+- \[`flake8-copyright`\] Allow © in copyright notices ([#10065](https://github.com/astral-sh/ruff/pull/10065))
+- \[`isort`\]: Use one blank line after imports in typing stub files ([#9971](https://github.com/astral-sh/ruff/pull/9971))
+- \[`pylint`\] New Rule `dict-iter-missing-items` (`PLE1141`) ([#9845](https://github.com/astral-sh/ruff/pull/9845))
+- \[`pylint`\] Ignore `sys.version` and `sys.platform` (`PLR1714`) ([#10054](https://github.com/astral-sh/ruff/pull/10054))
+- \[`pyupgrade`\] Detect literals with unary operators (`UP018`) ([#10060](https://github.com/astral-sh/ruff/pull/10060))
+- \[`ruff`\] Expand rule for `list(iterable).pop(0)` idiom (`RUF015`) ([#10148](https://github.com/astral-sh/ruff/pull/10148))
+
+### Formatter
+
+This release introduces the Ruff 2024.2 style, stabilizing the following changes:
+
+- Prefer splitting the assignment's value over the target or type annotation ([#8943](https://github.com/astral-sh/ruff/pull/8943))
+- Remove blank lines before class docstrings ([#9154](https://github.com/astral-sh/ruff/pull/9154))
+- Wrap multiple context managers in `with` parentheses when targeting Python 3.9 or newer ([#9222](https://github.com/astral-sh/ruff/pull/9222))
+- Add a blank line after nested classes with a dummy body (`...`) in typing stub files ([#9155](https://github.com/astral-sh/ruff/pull/9155))
+- Reduce vertical spacing for classes and functions with a dummy (`...`) body ([#7440](https://github.com/astral-sh/ruff/issues/7440), [#9240](https://github.com/astral-sh/ruff/pull/9240))
+- Add a blank line after the module docstring ([#8283](https://github.com/astral-sh/ruff/pull/8283))
+- Parenthesize long type hints in assignments ([#9210](https://github.com/astral-sh/ruff/pull/9210))
+- Preserve indent for single multiline-string call-expressions ([#9673](https://github.com/astral-sh/ruff/pull/9637))
+- Normalize hex escape and unicode escape sequences ([#9280](https://github.com/astral-sh/ruff/pull/9280))
+- Format module docstrings ([#9725](https://github.com/astral-sh/ruff/pull/9725))
+
+### CLI
+
+- Explicitly disallow `extend` as part of a `--config` flag ([#10135](https://github.com/astral-sh/ruff/pull/10135))
+- Remove `build` from the default exclusion list ([#10093](https://github.com/astral-sh/ruff/pull/10093))
+- Deprecate `ruff <path>`, `ruff --explain`, `ruff --clean`, and `ruff --generate-shell-completion` in favor of `ruff check <path>`, `ruff rule`, `ruff clean`, and `ruff generate-shell-completion` ([#10169](https://github.com/astral-sh/ruff/pull/10169))
+- Remove the deprecated CLI option `--format` from `ruff rule` and `ruff linter` ([#10170](https://github.com/astral-sh/ruff/pull/10170))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Avoid adding default initializers to stubs (`B006`) ([#10152](https://github.com/astral-sh/ruff/pull/10152))
+- \[`flake8-type-checking`\] Respect runtime-required decorators for function signatures ([#10091](https://github.com/astral-sh/ruff/pull/10091))
+- \[`pycodestyle`\] Mark fixes overlapping with a multiline string as unsafe (`W293`) ([#10049](https://github.com/astral-sh/ruff/pull/10049))
+- \[`pydocstyle`\] Trim whitespace when removing blank lines after section (`D413`) ([#10162](https://github.com/astral-sh/ruff/pull/10162))
+- \[`pylint`\] Delete entire statement, including semicolons (`PLR0203`) ([#10074](https://github.com/astral-sh/ruff/pull/10074))
+- \[`ruff`\] Avoid f-string false positives in `gettext` calls (`RUF027`) ([#10118](https://github.com/astral-sh/ruff/pull/10118))
+- Fix `ruff` crashing on PowerPC systems because of too small page size ([#10080](https://github.com/astral-sh/ruff/pull/10080))
+
+### Performance
+
+- Add cold attribute to less likely printer queue branches in the formatter ([#10121](https://github.com/astral-sh/ruff/pull/10121))
+- Skip unnecessary string normalization in the formatter ([#10116](https://github.com/astral-sh/ruff/pull/10116))
+
+### Documentation
+
+- Remove "Beta" Label from formatter documentation ([#10144](https://github.com/astral-sh/ruff/pull/10144))
+- `line-length` option: fix link to `pycodestyle.max-line-length` ([#10136](https://github.com/astral-sh/ruff/pull/10136))
+
+## 0.3.1
+
+### Preview features
+
+- \[`pycodestyle`\] Fix E301 not triggering on decorated methods. ([#10117](https://github.com/astral-sh/ruff/pull/10117))
+- \[`pycodestyle`\] Respect `isort` settings in blank line rules (`E3*`) ([#10096](https://github.com/astral-sh/ruff/pull/10096))
+- \[`pycodestyle`\] Make blank lines in typing stub files optional (`E3*`) ([#10098](https://github.com/astral-sh/ruff/pull/10098))
+- \[`pylint`\] Implement `singledispatch-method` (`E1519`) ([#10140](https://github.com/astral-sh/ruff/pull/10140))
+- \[`pylint`\] Implement `useless-exception-statement` (`W0133`) ([#10176](https://github.com/astral-sh/ruff/pull/10176))
+
+### Rule changes
+
+- \[`flake8-debugger`\] Check for use of `debugpy` and `ptvsd` debug modules (#10177) ([#10194](https://github.com/astral-sh/ruff/pull/10194))
+- \[`pyupgrade`\] Generate diagnostic for all valid f-string conversions regardless of line length (`UP032`) ([#10238](https://github.com/astral-sh/ruff/pull/10238))
+- \[`pep8_naming`\] Add fixes for `N804` and `N805` ([#10215](https://github.com/astral-sh/ruff/pull/10215))
+
+### CLI
+
+- Colorize the output of `ruff format --diff` ([#10110](https://github.com/astral-sh/ruff/pull/10110))
+- Make `--config` and `--isolated` global flags ([#10150](https://github.com/astral-sh/ruff/pull/10150))
+- Correctly expand tildes and environment variables in paths passed to `--config` ([#10219](https://github.com/astral-sh/ruff/pull/10219))
+
+### Configuration
+
+- Accept a PEP 440 version specifier for `required-version` ([#10216](https://github.com/astral-sh/ruff/pull/10216))
+- Implement isort's `default-section` setting ([#10149](https://github.com/astral-sh/ruff/pull/10149))
+
+### Bug fixes
+
+- Remove trailing space from `CapWords` message ([#10220](https://github.com/astral-sh/ruff/pull/10220))
+- Respect external codes in file-level exemptions ([#10203](https://github.com/astral-sh/ruff/pull/10203))
+- \[`flake8-raise`\] Avoid false-positives for parens-on-raise with `future.exception()` (`RSE102`) ([#10206](https://github.com/astral-sh/ruff/pull/10206))
+- \[`pylint`\] Add fix for unary expressions in `PLC2801` ([#9587](https://github.com/astral-sh/ruff/pull/9587))
+- \[`ruff`\] Fix RUF028 not allowing `# fmt: skip` on match cases ([#10178](https://github.com/astral-sh/ruff/pull/10178))
+
+## 0.3.2
+
+### Preview features
+
+- Improve single-`with` item formatting for Python 3.8 or older ([#10276](https://github.com/astral-sh/ruff/pull/10276))
+
+### Rule changes
+
+- \[`pyupgrade`\] Allow fixes for f-string rule regardless of line length (`UP032`) ([#10263](https://github.com/astral-sh/ruff/pull/10263))
+- \[`pycodestyle`\] Include actual conditions in E712 diagnostics ([#10254](https://github.com/astral-sh/ruff/pull/10254))
+
+### Bug fixes
+
+- Fix trailing kwargs end of line comment after slash ([#10297](https://github.com/astral-sh/ruff/pull/10297))
+- Fix unstable `with` items formatting ([#10274](https://github.com/astral-sh/ruff/pull/10274))
+- Avoid repeating function calls in f-string conversions ([#10265](https://github.com/astral-sh/ruff/pull/10265))
+- Fix E203 false positive for slices in format strings ([#10280](https://github.com/astral-sh/ruff/pull/10280))
+- Fix incorrect `Parameter` range for `*args` and `**kwargs` ([#10283](https://github.com/astral-sh/ruff/pull/10283))
+- Treat `typing.Annotated` subscripts as type definitions ([#10285](https://github.com/astral-sh/ruff/pull/10285))
+
+## 0.3.3
+
+### Preview features
+
+- \[`flake8-bandit`\]: Implement `S610` rule ([#10316](https://github.com/astral-sh/ruff/pull/10316))
+- \[`pycodestyle`\] Implement `blank-line-at-end-of-file` (`W391`) ([#10243](https://github.com/astral-sh/ruff/pull/10243))
+- \[`pycodestyle`\] Implement `redundant-backslash` (`E502`) ([#10292](https://github.com/astral-sh/ruff/pull/10292))
+- \[`pylint`\] - implement `redeclared-assigned-name` (`W0128`) ([#9268](https://github.com/astral-sh/ruff/pull/9268))
+
+### Rule changes
+
+- \[`flake8_comprehensions`\] Handled special case for `C400` which also matches `C416` ([#10419](https://github.com/astral-sh/ruff/pull/10419))
+- \[`flake8-bandit`\] Implement upstream updates for `S311`, `S324` and `S605` ([#10313](https://github.com/astral-sh/ruff/pull/10313))
+- \[`pyflakes`\] Remove `F401` fix for `__init__` imports by default and allow opt-in to unsafe fix ([#10365](https://github.com/astral-sh/ruff/pull/10365))
+- \[`pylint`\] Implement `invalid-bool-return-type` (`E304`) ([#10377](https://github.com/astral-sh/ruff/pull/10377))
+- \[`pylint`\] Include builtin warnings in useless-exception-statement (`PLW0133`) ([#10394](https://github.com/astral-sh/ruff/pull/10394))
+
+### CLI
+
+- Add message on success to `ruff check` ([#8631](https://github.com/astral-sh/ruff/pull/8631))
+
+### Bug fixes
+
+- \[`PIE970`\] Allow trailing ellipsis in `typing.TYPE_CHECKING` ([#10413](https://github.com/astral-sh/ruff/pull/10413))
+- Avoid `TRIO115` if the argument is a variable ([#10376](https://github.com/astral-sh/ruff/pull/10376))
+- \[`F811`\] Avoid removing shadowed imports that point to different symbols ([#10387](https://github.com/astral-sh/ruff/pull/10387))
+- Fix `F821` and `F822` false positives in `.pyi` files ([#10341](https://github.com/astral-sh/ruff/pull/10341))
+- Fix `F821` false negatives in `.py` files when `from __future__ import annotations` is active ([#10362](https://github.com/astral-sh/ruff/pull/10362))
+- Fix case where `Indexer` fails to identify continuation preceded by newline #10351 ([#10354](https://github.com/astral-sh/ruff/pull/10354))
+- Sort hash maps in `Settings` display ([#10370](https://github.com/astral-sh/ruff/pull/10370))
+- Track conditional deletions in the semantic model ([#10415](https://github.com/astral-sh/ruff/pull/10415))
+- \[`C413`\] Wrap expressions in parentheses when negating ([#10346](https://github.com/astral-sh/ruff/pull/10346))
+- \[`pycodestyle`\] Do not ignore lines before the first logical line in blank lines rules. ([#10382](https://github.com/astral-sh/ruff/pull/10382))
+- \[`pycodestyle`\] Do not trigger `E225` and `E275` when the next token is a ')' ([#10315](https://github.com/astral-sh/ruff/pull/10315))
+- \[`pylint`\] Avoid false-positive slot non-assignment for `__dict__` (`PLE0237`) ([#10348](https://github.com/astral-sh/ruff/pull/10348))
+- Gate f-string struct size test for Rustc < 1.76 ([#10371](https://github.com/astral-sh/ruff/pull/10371))
+
+### Documentation
+
+- Use `ruff.toml` format in README ([#10393](https://github.com/astral-sh/ruff/pull/10393))
+- \[`RUF008`\] Make it clearer that a mutable default in a dataclass is only valid if it is typed as a ClassVar ([#10395](https://github.com/astral-sh/ruff/pull/10395))
+- \[`pylint`\] Extend docs and test in `invalid-str-return-type` (`E307`) ([#10400](https://github.com/astral-sh/ruff/pull/10400))
+- Remove `.` from `check` and `format` commands ([#10217](https://github.com/astral-sh/ruff/pull/10217))
+
+## 0.3.4
+
+### Preview features
+
+- \[`flake8-simplify`\] Detect implicit `else` cases in `needless-bool` (`SIM103`) ([#10414](https://github.com/astral-sh/ruff/pull/10414))
+- \[`pylint`\] Implement `nan-comparison` (`PLW0117`) ([#10401](https://github.com/astral-sh/ruff/pull/10401))
+- \[`pylint`\] Implement `nonlocal-and-global` (`E115`) ([#10407](https://github.com/astral-sh/ruff/pull/10407))
+- \[`pylint`\] Implement `singledispatchmethod-function` (`PLE5120`) ([#10428](https://github.com/astral-sh/ruff/pull/10428))
+- \[`refurb`\] Implement `list-reverse-copy` (`FURB187`) ([#10212](https://github.com/astral-sh/ruff/pull/10212))
+
+### Rule changes
+
+- \[`flake8-pytest-style`\] Add automatic fix for `pytest-parametrize-values-wrong-type` (`PT007`) ([#10461](https://github.com/astral-sh/ruff/pull/10461))
+- \[`pycodestyle`\] Allow SPDX license headers to exceed the line length (`E501`) ([#10481](https://github.com/astral-sh/ruff/pull/10481))
+
+### Formatter
+
+- Fix unstable formatting for trailing subscript end-of-line comment ([#10492](https://github.com/astral-sh/ruff/pull/10492))
+
+### Bug fixes
+
+- Avoid code comment detection in PEP 723 script tags ([#10464](https://github.com/astral-sh/ruff/pull/10464))
+- Avoid incorrect tuple transformation in single-element case (`C409`) ([#10491](https://github.com/astral-sh/ruff/pull/10491))
+- Bug fix: Prevent fully defined links [`name`](link) from being reformatted ([#10442](https://github.com/astral-sh/ruff/pull/10442))
+- Consider raw source code for `W605` ([#10480](https://github.com/astral-sh/ruff/pull/10480))
+- Docs: Link inline settings when not part of options section ([#10499](https://github.com/astral-sh/ruff/pull/10499))
+- Don't treat annotations as redefinitions in `.pyi` files ([#10512](https://github.com/astral-sh/ruff/pull/10512))
+- Fix `E231` bug: Inconsistent catch compared to pycodestyle, such as when dict nested in list ([#10469](https://github.com/astral-sh/ruff/pull/10469))
+- Fix pylint upstream categories not showing in docs ([#10441](https://github.com/astral-sh/ruff/pull/10441))
+- Add missing `Options` references to blank line docs ([#10498](https://github.com/astral-sh/ruff/pull/10498))
+- 'Revert "F821: Fix false negatives in .py files when `from __future__ import annotations` is active (#10362)"' ([#10513](https://github.com/astral-sh/ruff/pull/10513))
+- Apply NFKC normalization to unicode identifiers in the lexer ([#10412](https://github.com/astral-sh/ruff/pull/10412))
+- Avoid failures due to non-deterministic binding ordering ([#10478](https://github.com/astral-sh/ruff/pull/10478))
+- \[`flake8-bugbear`\] Allow tuples of exceptions (`B030`) ([#10437](https://github.com/astral-sh/ruff/pull/10437))
+- \[`flake8-quotes`\] Avoid syntax errors due to invalid quotes (`Q000, Q002`) ([#10199](https://github.com/astral-sh/ruff/pull/10199))
+
+## 0.3.5
+
+### Preview features
+
+- \[`pylint`\] Implement `modified-iterating-set` (`E4703`) ([#10473](https://github.com/astral-sh/ruff/pull/10473))
+- \[`refurb`\] Implement `for-loop-set-mutations` (`FURB142`) ([#10583](https://github.com/astral-sh/ruff/pull/10583))
+- \[`refurb`\] Implement `unnecessary-from-float` (`FURB164`) ([#10647](https://github.com/astral-sh/ruff/pull/10647))
+- \[`refurb`\] Implement `verbose-decimal-constructor` (`FURB157`) ([#10533](https://github.com/astral-sh/ruff/pull/10533))
+
+### Rule changes
+
+- \[`flake8-comprehensions`\] Handled special case for `C401` which also matches `C416` ([#10596](https://github.com/astral-sh/ruff/pull/10596))
+- \[`flake8-pyi`\] Mark `unaliased-collections-abc-set-import` fix as "safe" for more cases in stub files (`PYI025`) ([#10547](https://github.com/astral-sh/ruff/pull/10547))
+- \[`numpy`\] Add `row_stack` to NumPy 2.0 migration rule ([#10646](https://github.com/astral-sh/ruff/pull/10646))
+- \[`pycodestyle`\] Allow cell magics before an import (`E402`) ([#10545](https://github.com/astral-sh/ruff/pull/10545))
+- \[`pycodestyle`\] Avoid blank line rules for the first logical line in cell ([#10291](https://github.com/astral-sh/ruff/pull/10291))
+
+### Configuration
+
+- Respected nested namespace packages ([#10541](https://github.com/astral-sh/ruff/pull/10541))
+- \[`flake8-boolean-trap`\] Add setting for user defined allowed boolean trap ([#10531](https://github.com/astral-sh/ruff/pull/10531))
+
+### Bug fixes
+
+- Correctly handle references in `__all__` definitions when renaming symbols in autofixes ([#10527](https://github.com/astral-sh/ruff/pull/10527))
+- Track ranges of names inside `__all__` definitions ([#10525](https://github.com/astral-sh/ruff/pull/10525))
+- \[`flake8-bugbear`\] Avoid false positive for usage after `continue` (`B031`) ([#10539](https://github.com/astral-sh/ruff/pull/10539))
+- \[`flake8-copyright`\] Accept commas in default copyright pattern ([#9498](https://github.com/astral-sh/ruff/pull/9498))
+- \[`flake8-datetimez`\] Allow f-strings with `%z` for `DTZ007` ([#10651](https://github.com/astral-sh/ruff/pull/10651))
+- \[`flake8-pytest-style`\] Fix `PT014` autofix for last item in list ([#10532](https://github.com/astral-sh/ruff/pull/10532))
+- \[`flake8-quotes`\] Ignore `Q000`, `Q001` when string is inside forward ref ([#10585](https://github.com/astral-sh/ruff/pull/10585))
+- \[`isort`\] Always place non-relative imports after relative imports ([#10669](https://github.com/astral-sh/ruff/pull/10669))
+- \[`isort`\] Respect Unicode characters in import sorting ([#10529](https://github.com/astral-sh/ruff/pull/10529))
+- \[`pyflakes`\] Fix F821 false negatives when `from __future__ import annotations` is active (attempt 2) ([#10524](https://github.com/astral-sh/ruff/pull/10524))
+- \[`pyflakes`\] Make `unnecessary-lambda` an always-unsafe fix ([#10668](https://github.com/astral-sh/ruff/pull/10668))
+- \[`pylint`\] Fixed false-positive on the rule `PLW1641` (`eq-without-hash`) ([#10566](https://github.com/astral-sh/ruff/pull/10566))
+- \[`ruff`\] Fix panic in unused `# noqa` removal with multi-byte space (`RUF100`) ([#10682](https://github.com/astral-sh/ruff/pull/10682))
+
+### Documentation
+
+- Add PR title format to `CONTRIBUTING.md` ([#10665](https://github.com/astral-sh/ruff/pull/10665))
+- Fix list markup to include blank lines required ([#10591](https://github.com/astral-sh/ruff/pull/10591))
+- Put `flake8-logging` next to the other flake8 plugins in registry ([#10587](https://github.com/astral-sh/ruff/pull/10587))
+- \[`flake8-bandit`\] Update warning message for rule `S305` to address insecure block cipher mode use ([#10602](https://github.com/astral-sh/ruff/pull/10602))
+- \[`flake8-bugbear`\] Document use of anonymous assignment in `useless-expression` ([#10551](https://github.com/astral-sh/ruff/pull/10551))
+- \[`flake8-datetimez`\] Clarify error messages and docs for `DTZ` rules ([#10621](https://github.com/astral-sh/ruff/pull/10621))
+- \[`pycodestyle`\] Use same before vs. after numbers for `space-around-operator` ([#10640](https://github.com/astral-sh/ruff/pull/10640))
+- \[`ruff`\] Change `quadratic-list-summation` docs to use `iadd` consistently ([#10666](https://github.com/astral-sh/ruff/pull/10666))
+
+## 0.3.6
+
+### Preview features
+
+- \[`pylint`\] Implement `bad-staticmethod-argument` (`PLW0211`) ([#10781](https://github.com/astral-sh/ruff/pull/10781))
+- \[`pylint`\] Implement `if-stmt-min-max` (`PLR1730`, `PLR1731`) ([#10002](https://github.com/astral-sh/ruff/pull/10002))
+- \[`pyupgrade`\] Replace `str,Enum` multiple inheritance with `StrEnum` `UP042` ([#10713](https://github.com/astral-sh/ruff/pull/10713))
+- \[`refurb`\] Implement `if-expr-instead-of-or-operator` (`FURB110`) ([#10687](https://github.com/astral-sh/ruff/pull/10687))
+- \[`refurb`\] Implement `int-on-sliced-str` (`FURB166`) ([#10650](https://github.com/astral-sh/ruff/pull/10650))
+- \[`refurb`\] Implement `write-whole-file` (`FURB103`) ([#10802](https://github.com/astral-sh/ruff/pull/10802))
+- \[`refurb`\] Support `itemgetter` in `reimplemented-operator` (`FURB118`) ([#10526](https://github.com/astral-sh/ruff/pull/10526))
+- \[`flake8_comprehensions`\] Add `sum`/`min`/`max` to unnecessary comprehension check (`C419`) ([#10759](https://github.com/astral-sh/ruff/pull/10759))
+
+### Rule changes
+
+- \[`pydocstyle`\] Require capitalizing docstrings where the first sentence is a single word (`D403`) ([#10776](https://github.com/astral-sh/ruff/pull/10776))
+- \[`pycodestyle`\] Ignore annotated lambdas in class scopes (`E731`) ([#10720](https://github.com/astral-sh/ruff/pull/10720))
+- \[`flake8-pyi`\] Various improvements to PYI034 ([#10807](https://github.com/astral-sh/ruff/pull/10807))
+- \[`flake8-slots`\] Flag subclasses of call-based `typing.NamedTuple`s as well as subclasses of `collections.namedtuple()` (`SLOT002`) ([#10808](https://github.com/astral-sh/ruff/pull/10808))
+- \[`pyflakes`\] Allow forward references in class bases in stub files (`F821`) ([#10779](https://github.com/astral-sh/ruff/pull/10779))
+- \[`pygrep-hooks`\] Improve `blanket-noqa` error message (`PGH004`) ([#10851](https://github.com/astral-sh/ruff/pull/10851))
+
+### CLI
+
+- Support `FORCE_COLOR` env var ([#10839](https://github.com/astral-sh/ruff/pull/10839))
+
+### Configuration
+
+- Support negated patterns in `[extend-]per-file-ignores` ([#10852](https://github.com/astral-sh/ruff/pull/10852))
+
+### Bug fixes
+
+- \[`flake8-import-conventions`\] Accept non-aliased (but correct) import in `unconventional-import-alias` (`ICN001`) ([#10729](https://github.com/astral-sh/ruff/pull/10729))
+- \[`flake8-quotes`\] Add semantic model flag when inside f-string replacement field ([#10766](https://github.com/astral-sh/ruff/pull/10766))
+- \[`pep8-naming`\] Recursively resolve `TypeDicts` for N815 violations ([#10719](https://github.com/astral-sh/ruff/pull/10719))
+- \[`flake8-quotes`\] Respect `Q00*` ignores in `flake8-quotes` rules ([#10728](https://github.com/astral-sh/ruff/pull/10728))
+- \[`flake8-simplify`\] Show negated condition in `needless-bool` diagnostics (`SIM103`) ([#10854](https://github.com/astral-sh/ruff/pull/10854))
+- \[`ruff`\] Use within-scope shadowed bindings in `asyncio-dangling-task` (`RUF006`) ([#10793](https://github.com/astral-sh/ruff/pull/10793))
+- \[`flake8-pytest-style`\] Fix single-tuple conversion in `pytest-parametrize-values-wrong-type` (`PT007`) ([#10862](https://github.com/astral-sh/ruff/pull/10862))
+- \[`flake8-return`\] Ignore assignments to annotated variables in `unnecessary-assign` (`RET504`) ([#10741](https://github.com/astral-sh/ruff/pull/10741))
+- \[`refurb`\] Do not allow any keyword arguments for `read-whole-file` in `rb` mode (`FURB101`) ([#10803](https://github.com/astral-sh/ruff/pull/10803))
+- \[`pylint`\] Don't recommend decorating staticmethods with `@singledispatch` (`PLE1519`, `PLE1520`) ([#10637](https://github.com/astral-sh/ruff/pull/10637))
+- \[`pydocstyle`\] Use section name range for all section-related docstring diagnostics ([#10740](https://github.com/astral-sh/ruff/pull/10740))
+- Respect `# noqa` directives on `__all__` openers ([#10798](https://github.com/astral-sh/ruff/pull/10798))
+
+## 0.3.7
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement `loop-iterator-mutation` (`B909`) ([#9578](https://github.com/astral-sh/ruff/pull/9578))
+- \[`pylint`\] Implement rule to prefer augmented assignment (`PLR6104`) ([#9932](https://github.com/astral-sh/ruff/pull/9932))
+
+### Bug fixes
+
+- Avoid TOCTOU errors in cache initialization ([#10884](https://github.com/astral-sh/ruff/pull/10884))
+- \[`pylint`\] Recode `nan-comparison` rule to `W0177` ([#10894](https://github.com/astral-sh/ruff/pull/10894))
+- \[`pylint`\] Reverse min-max logic in `if-stmt-min-max` ([#10890](https://github.com/astral-sh/ruff/pull/10890))

changelogs/0.4.x.md

@@ -0,0 +1,415 @@
+# Changelog 0.4.x
+
+## 0.4.0
+
+### A new, hand-written parser
+
+Ruff's new parser is **>2x faster**, which translates to a **20-40% speedup** for all linting and formatting invocations.
+There's a lot to say about this exciting change, so check out the [blog post](https://astral.sh/blog/ruff-v0.4.0) for more details!
+
+See [#10036](https://github.com/astral-sh/ruff/pull/10036) for implementation details.
+
+### A new language server in Rust
+
+With this release, we also want to highlight our new language server. `ruff server` is a Rust-powered language
+server that comes built-in with Ruff. It can be used with any editor that supports the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/) (LSP).
+It uses a multi-threaded, lock-free architecture inspired by `rust-analyzer` and it will open the door for a lot
+of exciting features. It’s also faster than our previous [Python-based language server](https://github.com/astral-sh/ruff-lsp)
+-- but you probably guessed that already.
+
+`ruff server` is only in alpha, but it has a lot of features that you can try out today:
+
+- Lints Python files automatically and shows quick-fixes when available
+- Formats Python files, with support for range formatting
+- Comes with commands for quickly performing actions: `ruff.applyAutofix`, `ruff.applyFormat`, and `ruff.applyOrganizeImports`
+- Supports `source.fixAll` and `source.organizeImports` source actions
+- Automatically reloads your project configuration when you change it
+
+To setup `ruff server` with your editor, refer to the [README.md](https://github.com/astral-sh/ruff/blob/main/crates/ruff_server/README.md).
+
+### Preview features
+
+- \[`pycodestyle`\] Do not trigger `E3` rules on `def`s following a function/method with a dummy body ([#10704](https://github.com/astral-sh/ruff/pull/10704))
+- \[`pylint`\] Implement `invalid-bytes-returned` (`E0308`) ([#10959](https://github.com/astral-sh/ruff/pull/10959))
+- \[`pylint`\] Implement `invalid-length-returned` (`E0303`) ([#10963](https://github.com/astral-sh/ruff/pull/10963))
+- \[`pylint`\] Implement `self-cls-assignment` (`W0642`) ([#9267](https://github.com/astral-sh/ruff/pull/9267))
+- \[`pylint`\] Omit stubs from `invalid-bool` and `invalid-str-return-type` ([#11008](https://github.com/astral-sh/ruff/pull/11008))
+- \[`ruff`\] New rule `unused-async` (`RUF029`) to detect unneeded `async` keywords on functions ([#9966](https://github.com/astral-sh/ruff/pull/9966))
+
+### Rule changes
+
+- \[`flake8-bandit`\] Allow `urllib.request.urlopen` calls with static `Request` argument (`S310`) ([#10964](https://github.com/astral-sh/ruff/pull/10964))
+- \[`flake8-bugbear`\] Treat `raise NotImplemented`-only bodies as stub functions (`B006`) ([#10990](https://github.com/astral-sh/ruff/pull/10990))
+- \[`flake8-slots`\] Respect same-file `Enum` subclasses (`SLOT000`) ([#11006](https://github.com/astral-sh/ruff/pull/11006))
+- \[`pylint`\] Support inverted comparisons (`PLR1730`) ([#10920](https://github.com/astral-sh/ruff/pull/10920))
+
+### Linter
+
+- Improve handling of builtin symbols in linter rules ([#10919](https://github.com/astral-sh/ruff/pull/10919))
+- Improve display of rules in `--show-settings` ([#11003](https://github.com/astral-sh/ruff/pull/11003))
+- Improve inference capabilities of the `BuiltinTypeChecker` ([#10976](https://github.com/astral-sh/ruff/pull/10976))
+- Resolve classes and functions relative to script name ([#10965](https://github.com/astral-sh/ruff/pull/10965))
+- Improve performance of `RuleTable::any_enabled` ([#10971](https://github.com/astral-sh/ruff/pull/10971))
+
+### Server
+
+_This section is devoted to updates for our new language server, written in Rust._
+
+- Enable ruff-specific source actions ([#10916](https://github.com/astral-sh/ruff/pull/10916))
+- Refreshes diagnostics for open files when file configuration is changed ([#10988](https://github.com/astral-sh/ruff/pull/10988))
+- Important errors are now shown as popups ([#10951](https://github.com/astral-sh/ruff/pull/10951))
+- Introduce settings for directly configuring the linter and formatter ([#10984](https://github.com/astral-sh/ruff/pull/10984))
+- Resolve configuration for each document individually ([#10950](https://github.com/astral-sh/ruff/pull/10950))
+- Write a setup guide for Neovim ([#10987](https://github.com/astral-sh/ruff/pull/10987))
+
+### Configuration
+
+- Add `RUFF_OUTPUT_FILE` environment variable support ([#10992](https://github.com/astral-sh/ruff/pull/10992))
+
+### Bug fixes
+
+- Avoid `non-augmented-assignment` for reversed, non-commutative operators (`PLR6104`) ([#10909](https://github.com/astral-sh/ruff/pull/10909))
+- Limit commutative non-augmented-assignments to primitive data types (`PLR6104`) ([#10912](https://github.com/astral-sh/ruff/pull/10912))
+- Respect `per-file-ignores` for `RUF100` on blanket `# noqa` ([#10908](https://github.com/astral-sh/ruff/pull/10908))
+- Consider `if` expression for parenthesized with items parsing ([#11010](https://github.com/astral-sh/ruff/pull/11010))
+- Consider binary expr for parenthesized with items parsing ([#11012](https://github.com/astral-sh/ruff/pull/11012))
+- Reset `FOR_TARGET` context for all kinds of parentheses ([#11009](https://github.com/astral-sh/ruff/pull/11009))
+
+## 0.4.1
+
+### Preview features
+
+- \[`pylint`\] Implement `invalid-hash-returned` (`PLE0309`) ([#10961](https://github.com/astral-sh/ruff/pull/10961))
+- \[`pylint`\] Implement `invalid-index-returned` (`PLE0305`) ([#10962](https://github.com/astral-sh/ruff/pull/10962))
+
+### Bug fixes
+
+- \[`pylint`\] Allow `NoReturn`-like functions for `__str__`, `__len__`, etc. (`PLE0307`) ([#11017](https://github.com/astral-sh/ruff/pull/11017))
+- Parser: Use empty range when there's "gap" in token source ([#11032](https://github.com/astral-sh/ruff/pull/11032))
+- \[`ruff`\] Ignore stub functions in `unused-async` (`RUF029`) ([#11026](https://github.com/astral-sh/ruff/pull/11026))
+- Parser: Expect indented case block instead of match stmt ([#11033](https://github.com/astral-sh/ruff/pull/11033))
+
+## 0.4.2
+
+### Rule changes
+
+- \[`flake8-pyi`\] Allow for overloaded `__exit__` and `__aexit__` definitions (`PYI036`) ([#11057](https://github.com/astral-sh/ruff/pull/11057))
+- \[`pyupgrade`\] Catch usages of `"%s" % var` and provide an unsafe fix (`UP031`) ([#11019](https://github.com/astral-sh/ruff/pull/11019))
+- \[`refurb`\] Implement new rule that suggests min/max over `sorted()` (`FURB192`) ([#10868](https://github.com/astral-sh/ruff/pull/10868))
+
+### Server
+
+- Fix an issue with missing diagnostics for Neovim and Helix ([#11092](https://github.com/astral-sh/ruff/pull/11092))
+- Implement hover documentation for `noqa` codes ([#11096](https://github.com/astral-sh/ruff/pull/11096))
+- Introduce common Ruff configuration options with new server settings ([#11062](https://github.com/astral-sh/ruff/pull/11062))
+
+### Bug fixes
+
+- Use `macos-12` for building release wheels to enable macOS 11 compatibility ([#11146](https://github.com/astral-sh/ruff/pull/11146))
+- \[`flake8-blind-expect`\] Allow raise from in `BLE001` ([#11131](https://github.com/astral-sh/ruff/pull/11131))
+- \[`flake8-pyi`\] Allow simple assignments to `None` in enum class scopes (`PYI026`) ([#11128](https://github.com/astral-sh/ruff/pull/11128))
+- \[`flake8-simplify`\] Avoid raising `SIM911` for non-`zip` attribute calls ([#11126](https://github.com/astral-sh/ruff/pull/11126))
+- \[`refurb`\] Avoid `operator.itemgetter` suggestion for single-item tuple ([#11095](https://github.com/astral-sh/ruff/pull/11095))
+- \[`ruff`\] Respect per-file-ignores for `RUF100` with no other diagnostics ([#11058](https://github.com/astral-sh/ruff/pull/11058))
+- \[`ruff`\] Fix async comprehension false positive (`RUF029`) ([#11070](https://github.com/astral-sh/ruff/pull/11070))
+
+### Documentation
+
+- \[`flake8-bugbear`\] Document explicitly disabling strict zip (`B905`) ([#11040](https://github.com/astral-sh/ruff/pull/11040))
+- \[`flake8-type-checking`\] Mention `lint.typing-modules` in `TCH001`, `TCH002`, and `TCH003` ([#11144](https://github.com/astral-sh/ruff/pull/11144))
+- \[`isort`\] Improve documentation around custom `isort` sections ([#11050](https://github.com/astral-sh/ruff/pull/11050))
+- \[`pylint`\] Fix documentation oversight for `invalid-X-returns` ([#11094](https://github.com/astral-sh/ruff/pull/11094))
+
+### Performance
+
+- Use `matchit` to resolve per-file settings ([#11111](https://github.com/astral-sh/ruff/pull/11111))
+
+## 0.4.3
+
+### Enhancements
+
+- Add support for PEP 696 syntax ([#11120](https://github.com/astral-sh/ruff/pull/11120))
+
+### Preview features
+
+- \[`refurb`\] Use function range for `reimplemented-operator` diagnostics ([#11271](https://github.com/astral-sh/ruff/pull/11271))
+- \[`refurb`\] Ignore methods in `reimplemented-operator` (`FURB118`) ([#11270](https://github.com/astral-sh/ruff/pull/11270))
+- \[`refurb`\] Implement `fstring-number-format` (`FURB116`) ([#10921](https://github.com/astral-sh/ruff/pull/10921))
+- \[`ruff`\] Implement `redirected-noqa` (`RUF101`) ([#11052](https://github.com/astral-sh/ruff/pull/11052))
+- \[`pyflakes`\] Distinguish between first-party and third-party imports for fix suggestions ([#11168](https://github.com/astral-sh/ruff/pull/11168))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Ignore non-abstract class attributes when enforcing `B024` ([#11210](https://github.com/astral-sh/ruff/pull/11210))
+- \[`flake8-logging`\] Include inline instantiations when detecting loggers ([#11154](https://github.com/astral-sh/ruff/pull/11154))
+- \[`pylint`\] Also emit `PLR0206` for properties with variadic parameters ([#11200](https://github.com/astral-sh/ruff/pull/11200))
+- \[`ruff`\] Detect duplicate codes as part of `unused-noqa` (`RUF100`) ([#10850](https://github.com/astral-sh/ruff/pull/10850))
+
+### Formatter
+
+- Avoid multiline expression if format specifier is present ([#11123](https://github.com/astral-sh/ruff/pull/11123))
+
+### LSP
+
+- Write `ruff server` setup guide for Helix ([#11183](https://github.com/astral-sh/ruff/pull/11183))
+- `ruff server` no longer hangs after shutdown ([#11222](https://github.com/astral-sh/ruff/pull/11222))
+- `ruff server` reads from a configuration TOML file in the user configuration directory if no local configuration exists ([#11225](https://github.com/astral-sh/ruff/pull/11225))
+- `ruff server` respects `per-file-ignores` configuration ([#11224](https://github.com/astral-sh/ruff/pull/11224))
+- `ruff server`: Support a custom TOML configuration file ([#11140](https://github.com/astral-sh/ruff/pull/11140))
+- `ruff server`: Support setting to prioritize project configuration over editor configuration ([#11086](https://github.com/astral-sh/ruff/pull/11086))
+
+### Bug fixes
+
+- Avoid debug assertion around NFKC renames ([#11249](https://github.com/astral-sh/ruff/pull/11249))
+- \[`pyflakes`\] Prioritize `redefined-while-unused` over `unused-import` ([#11173](https://github.com/astral-sh/ruff/pull/11173))
+- \[`ruff`\] Respect `async` expressions in comprehension bodies ([#11219](https://github.com/astral-sh/ruff/pull/11219))
+- \[`pygrep_hooks`\] Fix `blanket-noqa` panic when last line has noqa with no newline (`PGH004`) ([#11108](https://github.com/astral-sh/ruff/pull/11108))
+- \[`perflint`\] Ignore list-copy recommendations for async `for` loops ([#11250](https://github.com/astral-sh/ruff/pull/11250))
+- \[`pyflakes`\] Improve `invalid-print-syntax` documentation ([#11171](https://github.com/astral-sh/ruff/pull/11171))
+
+### Performance
+
+- Avoid allocations for isort module names ([#11251](https://github.com/astral-sh/ruff/pull/11251))
+- Build a separate ARM wheel for macOS ([#11149](https://github.com/astral-sh/ruff/pull/11149))
+
+### Windows
+
+- Increase the minimum requirement to Windows 10.
+
+## 0.4.4
+
+### Preview features
+
+- \[`pycodestyle`\] Ignore end-of-line comments when determining blank line rules ([#11342](https://github.com/astral-sh/ruff/pull/11342))
+- \[`pylint`\] Detect `pathlib.Path.open` calls in `unspecified-encoding` (`PLW1514`) ([#11288](https://github.com/astral-sh/ruff/pull/11288))
+- \[`flake8-pyi`\] Implement `PYI059` (`generic-not-last-base-class`) ([#11233](https://github.com/astral-sh/ruff/pull/11233))
+- \[`flake8-pyi`\] Implement `PYI062` (`duplicate-literal-member`) ([#11269](https://github.com/astral-sh/ruff/pull/11269))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Allow passing booleans as positional-only arguments in code such as `set(True)` ([#11287](https://github.com/astral-sh/ruff/pull/11287))
+- \[`flake8-bugbear`\] Ignore enum classes in `cached-instance-method` (`B019`) ([#11312](https://github.com/astral-sh/ruff/pull/11312))
+
+### Server
+
+- Expand tildes when resolving Ruff server configuration file ([#11283](https://github.com/astral-sh/ruff/pull/11283))
+- Fix `ruff server` hanging after Neovim closes ([#11291](https://github.com/astral-sh/ruff/pull/11291))
+- Editor settings are used by default if no file-based configuration exists ([#11266](https://github.com/astral-sh/ruff/pull/11266))
+
+### Bug fixes
+
+- \[`pylint`\] Consider `with` statements for `too-many-branches` (`PLR0912`) ([#11321](https://github.com/astral-sh/ruff/pull/11321))
+- \[`flake8-blind-except`, `tryceratops`\] Respect logged and re-raised expressions in nested statements (`BLE001`, `TRY201`) ([#11301](https://github.com/astral-sh/ruff/pull/11301))
+- Recognise assignments such as `__all__ = builtins.list(["foo", "bar"])` as valid `__all__` definitions ([#11335](https://github.com/astral-sh/ruff/pull/11335))
+
+## 0.4.5
+
+### Ruff's language server is now in Beta
+
+`v0.4.5` marks the official Beta release of `ruff server`, an integrated language server built into Ruff.
+`ruff server` supports the same feature set as `ruff-lsp`, powering linting, formatting, and
+code fixes in Ruff's editor integrations -- but with superior performance and
+no installation required. We'd love your feedback!
+
+You can enable `ruff server` in the [VS Code extension](https://github.com/astral-sh/ruff-vscode?tab=readme-ov-file#enabling-the-rust-based-language-server) today.
+
+To read more about this exciting milestone, check out our [blog post](https://astral.sh/blog/ruff-v0.4.5)!
+
+### Rule changes
+
+- \[`flake8-future-annotations`\] Reword `future-rewritable-type-annotation` (`FA100`) message ([#11381](https://github.com/astral-sh/ruff/pull/11381))
+- \[`isort`\] Expanded the set of standard-library modules to include `_string`, etc. ([#11374](https://github.com/astral-sh/ruff/pull/11374))
+- \[`pycodestyle`\] Consider soft keywords for `E27` rules ([#11446](https://github.com/astral-sh/ruff/pull/11446))
+- \[`pyflakes`\] Recommend adding unused import bindings to `__all__` ([#11314](https://github.com/astral-sh/ruff/pull/11314))
+- \[`pyflakes`\] Update documentation and deprecate `ignore_init_module_imports` ([#11436](https://github.com/astral-sh/ruff/pull/11436))
+- \[`pyupgrade`\] Mark quotes as unnecessary for non-evaluated annotations ([#11485](https://github.com/astral-sh/ruff/pull/11485))
+
+### Formatter
+
+- Avoid multiline quotes warning with `quote-style = preserve` ([#11490](https://github.com/astral-sh/ruff/pull/11490))
+
+### Server
+
+- Support Jupyter Notebook files ([#11206](https://github.com/astral-sh/ruff/pull/11206))
+- Support `noqa` comment code actions ([#11276](https://github.com/astral-sh/ruff/pull/11276))
+- Fix automatic configuration reloading ([#11492](https://github.com/astral-sh/ruff/pull/11492))
+- Fix several issues with configuration in Neovim and Helix ([#11497](https://github.com/astral-sh/ruff/pull/11497))
+
+### CLI
+
+- Add `--output-format` as a CLI option for `ruff config` ([#11438](https://github.com/astral-sh/ruff/pull/11438))
+
+### Bug fixes
+
+- Avoid `PLE0237` for property with setter ([#11377](https://github.com/astral-sh/ruff/pull/11377))
+- Avoid `TCH005` for `if` stmt with `elif`/`else` block ([#11376](https://github.com/astral-sh/ruff/pull/11376))
+- Avoid flagging `__future__` annotations as required for non-evaluated type annotations ([#11414](https://github.com/astral-sh/ruff/pull/11414))
+- Check for ruff executable in 'bin' directory as installed by 'pip install --target'. ([#11450](https://github.com/astral-sh/ruff/pull/11450))
+- Sort edits prior to deduplicating in quotation fix ([#11452](https://github.com/astral-sh/ruff/pull/11452))
+- Treat escaped newline as valid sequence ([#11465](https://github.com/astral-sh/ruff/pull/11465))
+- \[`flake8-pie`\] Preserve parentheses in `unnecessary-dict-kwargs` ([#11372](https://github.com/astral-sh/ruff/pull/11372))
+- \[`pylint`\] Ignore `__slots__` with dynamic values ([#11488](https://github.com/astral-sh/ruff/pull/11488))
+- \[`pylint`\] Remove `try` body from branch counting ([#11487](https://github.com/astral-sh/ruff/pull/11487))
+- \[`refurb`\] Respect operator precedence in `FURB110` ([#11464](https://github.com/astral-sh/ruff/pull/11464))
+
+### Documentation
+
+- Add `--preview` to the README ([#11395](https://github.com/astral-sh/ruff/pull/11395))
+- Add Python 3.13 to list of allowed Python versions ([#11411](https://github.com/astral-sh/ruff/pull/11411))
+- Simplify Neovim setup documentation ([#11489](https://github.com/astral-sh/ruff/pull/11489))
+- Update CONTRIBUTING.md to reflect the new parser ([#11434](https://github.com/astral-sh/ruff/pull/11434))
+- Update server documentation with new migration guide ([#11499](https://github.com/astral-sh/ruff/pull/11499))
+- \[`pycodestyle`\] Clarify motivation for `E713` and `E714` ([#11483](https://github.com/astral-sh/ruff/pull/11483))
+- \[`pyflakes`\] Update docs to describe WAI behavior (F541) ([#11362](https://github.com/astral-sh/ruff/pull/11362))
+- \[`pylint`\] Clearly indicate what is counted as a branch ([#11423](https://github.com/astral-sh/ruff/pull/11423))
+
+## 0.4.6
+
+### Breaking changes
+
+- Use project-relative paths when calculating GitLab fingerprints ([#11532](https://github.com/astral-sh/ruff/pull/11532))
+- Bump minimum supported Windows version to Windows 10 ([#11613](https://github.com/astral-sh/ruff/pull/11613))
+
+### Preview features
+
+- \[`flake8-async`\] Sleep with >24 hour interval should usually sleep forever (`ASYNC116`) ([#11498](https://github.com/astral-sh/ruff/pull/11498))
+
+### Rule changes
+
+- \[`numpy`\] Add missing functions to NumPy 2.0 migration rule ([#11528](https://github.com/astral-sh/ruff/pull/11528))
+- \[`mccabe`\] Consider irrefutable pattern similar to `if .. else` for `C901` ([#11565](https://github.com/astral-sh/ruff/pull/11565))
+- Consider `match`-`case` statements for `C901`, `PLR0912`, and `PLR0915` ([#11521](https://github.com/astral-sh/ruff/pull/11521))
+- Remove empty strings when converting to f-string (`UP032`) ([#11524](https://github.com/astral-sh/ruff/pull/11524))
+- \[`flake8-bandit`\] `request-without-timeout` should warn for `requests.request` ([#11548](https://github.com/astral-sh/ruff/pull/11548))
+- \[`flake8-self`\] Ignore sunder accesses in `flake8-self` rules ([#11546](https://github.com/astral-sh/ruff/pull/11546))
+- \[`pyupgrade`\] Lint for `TypeAliasType` usages (`UP040`) ([#11530](https://github.com/astral-sh/ruff/pull/11530))
+
+### Server
+
+- Respect excludes in `ruff server` configuration discovery ([#11551](https://github.com/astral-sh/ruff/pull/11551))
+- Use default settings if initialization options is empty or not provided ([#11566](https://github.com/astral-sh/ruff/pull/11566))
+- `ruff server` correctly treats `.pyi` files as stub files ([#11535](https://github.com/astral-sh/ruff/pull/11535))
+- `ruff server` searches for configuration in parent directories ([#11537](https://github.com/astral-sh/ruff/pull/11537))
+- `ruff server`: An empty code action filter no longer returns notebook source actions ([#11526](https://github.com/astral-sh/ruff/pull/11526))
+
+### Bug fixes
+
+- \[`flake8-logging-format`\] Fix autofix title in `logging-warn` (`G010`) ([#11514](https://github.com/astral-sh/ruff/pull/11514))
+- \[`refurb`\] Avoid recommending `operator.itemgetter` with dependence on lambda arguments ([#11574](https://github.com/astral-sh/ruff/pull/11574))
+- \[`flake8-simplify`\] Avoid recommending context manager in `__enter__` implementations ([#11575](https://github.com/astral-sh/ruff/pull/11575))
+- Create intermediary directories for `--output-file` ([#11550](https://github.com/astral-sh/ruff/pull/11550))
+- Propagate reads on global variables ([#11584](https://github.com/astral-sh/ruff/pull/11584))
+- Treat all `singledispatch` arguments as runtime-required ([#11523](https://github.com/astral-sh/ruff/pull/11523))
+
+## 0.4.7
+
+### Preview features
+
+- \[`flake8-pyi`\] Implement `PYI064` ([#11325](https://github.com/astral-sh/ruff/pull/11325))
+- \[`flake8-pyi`\] Implement `PYI066` ([#11541](https://github.com/astral-sh/ruff/pull/11541))
+- \[`flake8-pyi`\] Implement `PYI057` ([#11486](https://github.com/astral-sh/ruff/pull/11486))
+- \[`pyflakes`\] Enable `F822` in `__init__.py` files by default ([#11370](https://github.com/astral-sh/ruff/pull/11370))
+
+### Formatter
+
+- Fix incorrect placement of trailing stub function comments ([#11632](https://github.com/astral-sh/ruff/pull/11632))
+
+### Server
+
+- Respect file exclusions in `ruff server` ([#11590](https://github.com/astral-sh/ruff/pull/11590))
+- Add support for documents not exist on disk ([#11588](https://github.com/astral-sh/ruff/pull/11588))
+- Add Vim and Kate setup guide for `ruff server` ([#11615](https://github.com/astral-sh/ruff/pull/11615))
+
+### Bug fixes
+
+- Avoid removing newlines between docstring headers and rST blocks ([#11609](https://github.com/astral-sh/ruff/pull/11609))
+- Infer indentation with imports when logical indent is absent ([#11608](https://github.com/astral-sh/ruff/pull/11608))
+- Use char index rather than position for indent slice ([#11645](https://github.com/astral-sh/ruff/pull/11645))
+- \[`flake8-comprehension`\] Strip parentheses around generators in `C400` ([#11607](https://github.com/astral-sh/ruff/pull/11607))
+- Mark `repeated-isinstance-calls` as unsafe on Python 3.10 and later ([#11622](https://github.com/astral-sh/ruff/pull/11622))
+
+## 0.4.8
+
+### Performance
+
+- Linter performance has been improved by around 10% on some microbenchmarks by refactoring the lexer and parser to maintain synchronicity between them ([#11457](https://github.com/astral-sh/ruff/pull/11457))
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement `return-in-generator` (`B901`) ([#11644](https://github.com/astral-sh/ruff/pull/11644))
+- \[`flake8-pyi`\] Implement `pep484-style-positional-only-parameter` (`PYI063`) ([#11699](https://github.com/astral-sh/ruff/pull/11699))
+- \[`pygrep_hooks`\] Check blanket ignores via file-level pragmas (`PGH004`) ([#11540](https://github.com/astral-sh/ruff/pull/11540))
+
+### Rule changes
+
+- \[`pyupgrade`\] Update `UP035` for Python 3.13 and the latest version of `typing_extensions` ([#11693](https://github.com/astral-sh/ruff/pull/11693))
+- \[`numpy`\] Update `NPY001` rule for NumPy 2.0 ([#11735](https://github.com/astral-sh/ruff/pull/11735))
+
+### Server
+
+- Formatting a document with syntax problems no longer spams a visible error popup ([#11745](https://github.com/astral-sh/ruff/pull/11745))
+
+### CLI
+
+- Add RDJson support for `--output-format` flag ([#11682](https://github.com/astral-sh/ruff/pull/11682))
+
+### Bug fixes
+
+- \[`pyupgrade`\] Write empty string in lieu of panic when fixing `UP032` ([#11696](https://github.com/astral-sh/ruff/pull/11696))
+- \[`flake8-simplify`\] Simplify double negatives in `SIM103` ([#11684](https://github.com/astral-sh/ruff/pull/11684))
+- Ensure the expression generator adds a newline before `type` statements ([#11720](https://github.com/astral-sh/ruff/pull/11720))
+- Respect per-file ignores for blanket and redirected noqa rules ([#11728](https://github.com/astral-sh/ruff/pull/11728))
+
+## 0.4.9
+
+### Preview features
+
+- \[`pylint`\] Implement `consider-dict-items` (`C0206`) ([#11688](https://github.com/astral-sh/ruff/pull/11688))
+- \[`refurb`\] Implement `repeated-global` (`FURB154`) ([#11187](https://github.com/astral-sh/ruff/pull/11187))
+
+### Rule changes
+
+- \[`pycodestyle`\] Adapt fix for `E203` to work identical to `ruff format` ([#10999](https://github.com/astral-sh/ruff/pull/10999))
+
+### Formatter
+
+- Fix formatter instability for lines only consisting of zero-width characters ([#11748](https://github.com/astral-sh/ruff/pull/11748))
+
+### Server
+
+- Add supported commands in server capabilities ([#11850](https://github.com/astral-sh/ruff/pull/11850))
+- Use real file path when available in `ruff server` ([#11800](https://github.com/astral-sh/ruff/pull/11800))
+- Improve error message when a command is run on an unavailable document ([#11823](https://github.com/astral-sh/ruff/pull/11823))
+- Introduce the `ruff.printDebugInformation` command ([#11831](https://github.com/astral-sh/ruff/pull/11831))
+- Tracing system now respects log level and trace level, with options to log to a file ([#11747](https://github.com/astral-sh/ruff/pull/11747))
+
+### CLI
+
+- Handle non-printable characters in diff view ([#11687](https://github.com/astral-sh/ruff/pull/11687))
+
+### Bug fixes
+
+- \[`refurb`\] Avoid suggesting starmap when arguments are used outside call (`FURB140`) ([#11830](https://github.com/astral-sh/ruff/pull/11830))
+- \[`flake8-bugbear`\] Avoid panic in `B909` when checking large loop blocks ([#11772](https://github.com/astral-sh/ruff/pull/11772))
+- \[`refurb`\] Fix misbehavior of `operator.itemgetter` when getter param is a tuple (`FURB118`) ([#11774](https://github.com/astral-sh/ruff/pull/11774))
+
+## 0.4.10
+
+### Parser
+
+- Implement re-lexing logic for better error recovery ([#11845](https://github.com/astral-sh/ruff/pull/11845))
+
+### Rule changes
+
+- \[`flake8-copyright`\] Update `CPY001` to check the first 4096 bytes instead of 1024 ([#11927](https://github.com/astral-sh/ruff/pull/11927))
+- \[`pycodestyle`\] Update `E999` to show all syntax errors instead of just the first one ([#11900](https://github.com/astral-sh/ruff/pull/11900))
+
+### Server
+
+- Add tracing setup guide to Helix documentation ([#11883](https://github.com/astral-sh/ruff/pull/11883))
+- Add tracing setup guide to Neovim documentation ([#11884](https://github.com/astral-sh/ruff/pull/11884))
+- Defer notebook cell deletion to avoid an error message ([#11864](https://github.com/astral-sh/ruff/pull/11864))
+
+### Security
+
+- Guard against malicious ecosystem comment artifacts ([#11879](https://github.com/astral-sh/ruff/pull/11879))

changelogs/0.5.x.md

@@ -0,0 +1,402 @@
+# Changelog 0.5.x
+
+## 0.5.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.5.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- Follow the XDG specification to discover user-level configurations on macOS (same as on other Unix platforms)
+- Selecting `ALL` now excludes deprecated rules
+- The released archives now include an extra level of nesting, which can be removed with `--strip-components=1` when untarring.
+- The release artifact's file name no longer includes the version tag. This enables users to install via `/latest` URLs on GitHub.
+- The diagnostic ranges for some `flake8-bandit` rules were modified ([#10667](https://github.com/astral-sh/ruff/pull/10667)).
+
+### Deprecations
+
+The following rules are now deprecated:
+
+- [`syntax-error`](https://docs.astral.sh/ruff/rules/syntax-error/) (`E999`): Syntax errors are now always shown
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- [`blocking-http-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-http-call-in-async-function/): `ASYNC100` to `ASYNC210`
+- [`open-sleep-or-subprocess-in-async-function`](https://docs.astral.sh/ruff/rules/open-sleep-or-subprocess-in-async-function/): `ASYNC101` split into `ASYNC220`, `ASYNC221`, `ASYNC230`, and `ASYNC251`
+- [`blocking-os-call-in-async-function`](https://docs.astral.sh/ruff/rules/blocking-os-call-in-async-function/): `ASYNC102` has been merged into `ASYNC220` and `ASYNC221`
+- [`trio-timeout-without-await`](https://docs.astral.sh/ruff/rules/trio-timeout-without-await/): `TRIO100` to `ASYNC100`
+- [`trio-sync-call`](https://docs.astral.sh/ruff/rules/trio-sync-call/): `TRIO105` to `ASYNC105`
+- [`trio-async-function-with-timeout`](https://docs.astral.sh/ruff/rules/trio-async-function-with-timeout/): `TRIO109` to `ASYNC109`
+- [`trio-unneeded-sleep`](https://docs.astral.sh/ruff/rules/trio-unneeded-sleep/): `TRIO110` to `ASYNC110`
+- [`trio-zero-sleep-call`](https://docs.astral.sh/ruff/rules/trio-zero-sleep-call/): `TRIO115` to `ASYNC115`
+- [`repeated-isinstance-calls`](https://docs.astral.sh/ruff/rules/repeated-isinstance-calls/): `PLR1701` to `SIM101`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`mutable-fromkeys-value`](https://docs.astral.sh/ruff/rules/mutable-fromkeys-value/) (`RUF024`)
+- [`default-factory-kwarg`](https://docs.astral.sh/ruff/rules/default-factory-kwarg/) (`RUF026`)
+- [`django-extra`](https://docs.astral.sh/ruff/rules/django-extra/) (`S610`)
+- [`manual-dict-comprehension`](https://docs.astral.sh/ruff/rules/manual-dict-comprehension/) (`PERF403`)
+- [`print-empty-string`](https://docs.astral.sh/ruff/rules/print-empty-string/) (`FURB105`)
+- [`readlines-in-for`](https://docs.astral.sh/ruff/rules/readlines-in-for/) (`FURB129`)
+- [`if-expr-min-max`](https://docs.astral.sh/ruff/rules/if-expr-min-max/) (`FURB136`)
+- [`bit-count`](https://docs.astral.sh/ruff/rules/bit-count/) (`FURB161`)
+- [`redundant-log-base`](https://docs.astral.sh/ruff/rules/redundant-log-base/) (`FURB163`)
+- [`regex-flag-alias`](https://docs.astral.sh/ruff/rules/regex-flag-alias/) (`FURB167`)
+- [`isinstance-type-none`](https://docs.astral.sh/ruff/rules/isinstance-type-none/) (`FURB168`)
+- [`type-none-comparison`](https://docs.astral.sh/ruff/rules/type-none-comparison/) (`FURB169`)
+- [`implicit-cwd`](https://docs.astral.sh/ruff/rules/implicit-cwd/) (`FURB177`)
+- [`hashlib-digest-hex`](https://docs.astral.sh/ruff/rules/hashlib-digest-hex/) (`FURB181`)
+- [`list-reverse-copy`](https://docs.astral.sh/ruff/rules/list-reverse-copy/) (`FURB187`)
+- [`bad-open-mode`](https://docs.astral.sh/ruff/rules/bad-open-mode/) (`PLW1501`)
+- [`empty-comment`](https://docs.astral.sh/ruff/rules/empty-comment/) (`PLR2044`)
+- [`global-at-module-level`](https://docs.astral.sh/ruff/rules/global-at-module-level/) (`PLW0604`)
+- [`misplaced-bare-raise`](https://docs.astral.sh/ruff/rules/misplaced-bare-raise/) (`PLE0744`)
+- [`non-ascii-import-name`](https://docs.astral.sh/ruff/rules/non-ascii-import-name/) (`PLC2403`)
+- [`non-ascii-name`](https://docs.astral.sh/ruff/rules/non-ascii-name/) (`PLC2401`)
+- [`nonlocal-and-global`](https://docs.astral.sh/ruff/rules/nonlocal-and-global/) (`PLE0115`)
+- [`potential-index-error`](https://docs.astral.sh/ruff/rules/potential-index-error/) (`PLE0643`)
+- [`redeclared-assigned-name`](https://docs.astral.sh/ruff/rules/redeclared-assigned-name/) (`PLW0128`)
+- [`redefined-argument-from-local`](https://docs.astral.sh/ruff/rules/redefined-argument-from-local/) (`PLR1704`)
+- [`repeated-keyword-argument`](https://docs.astral.sh/ruff/rules/repeated-keyword-argument/) (`PLE1132`)
+- [`super-without-brackets`](https://docs.astral.sh/ruff/rules/super-without-brackets/) (`PLW0245`)
+- [`unnecessary-list-index-lookup`](https://docs.astral.sh/ruff/rules/unnecessary-list-index-lookup/) (`PLR1736`)
+- [`useless-exception-statement`](https://docs.astral.sh/ruff/rules/useless-exception-statement/) (`PLW0133`)
+- [`useless-with-lock`](https://docs.astral.sh/ruff/rules/useless-with-lock/) (`PLW2101`)
+
+The following behaviors have been stabilized:
+
+- [`is-literal`](https://docs.astral.sh/ruff/rules/is-literal/) (`F632`) now warns for identity checks against list, set or dictionary literals
+- [`needless-bool`](https://docs.astral.sh/ruff/rules/needless-bool/) (`SIM103`) now detects `if` expressions with implicit `else` branches
+- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`) now allows `os.environ` modifications between import statements
+- [`type-comparison`](https://docs.astral.sh/ruff/rules/type-comparison/) (`E721`) now allows idioms such as `type(x) is int`
+- [`yoda-condition`](https://docs.astral.sh/ruff/rules/yoda-conditions/) (`SIM300`) now flags a wider range of expressions
+
+### Removals
+
+The following deprecated settings have been removed:
+
+- `output-format=text`; use `output-format=concise` or `output-format=full`
+- `tab-size`; use `indent-width`
+
+The following deprecated CLI options have been removed:
+
+- `--show-source`; use `--output-format=full`
+- `--no-show-source`; use `--output-format=concise`
+
+The following deprecated CLI commands have been removed:
+
+- `ruff <path>`; use `ruff check <path>`
+- `ruff --clean`; use `ruff clean`
+- `ruff --generate-shell-completion`; use `ruff generate-shell-completion`
+
+### Preview features
+
+- \[`ruff`\] Add `assert-with-print-message` rule ([#11981](https://github.com/astral-sh/ruff/pull/11981))
+
+### CLI
+
+- Use rule name rather than message in `--statistics` ([#11697](https://github.com/astral-sh/ruff/pull/11697))
+- Use the output format `full` by default ([#12010](https://github.com/astral-sh/ruff/pull/12010))
+- Don't log syntax errors to the console ([#11902](https://github.com/astral-sh/ruff/pull/11902))
+
+### Rule changes
+
+- \[`ruff`\] Fix false positives if `gettext` is imported using an alias (`RUF027`) ([#12025](https://github.com/astral-sh/ruff/pull/12025))
+- \[`numpy`\] Update `trapz` and `in1d` deprecation (`NPY201`) ([#11948](https://github.com/astral-sh/ruff/pull/11948))
+- \[`flake8-bandit`\] Modify diagnostic ranges for shell-related rules ([#10667](https://github.com/astral-sh/ruff/pull/10667))
+
+### Server
+
+- Closing an untitled, unsaved notebook document no longer throws an error ([#11942](https://github.com/astral-sh/ruff/pull/11942))
+- Support the usage of tildes and environment variables in `logFile` ([#11945](https://github.com/astral-sh/ruff/pull/11945))
+- Add option to configure whether to show syntax errors ([#12059](https://github.com/astral-sh/ruff/pull/12059))
+
+### Bug fixes
+
+- \[`pycodestyle`\] Avoid `E203` for f-string debug expression ([#12024](https://github.com/astral-sh/ruff/pull/12024))
+- \[`pep8-naming`\] Match import-name ignores against both name and alias (`N812`, `N817`) ([#12033](https://github.com/astral-sh/ruff/pull/12033))
+- \[`pyflakes`\] Detect assignments that shadow definitions (`F811`) ([#11961](https://github.com/astral-sh/ruff/pull/11961))
+
+### Parser
+
+- Emit a syntax error for an empty type parameter list ([#12030](https://github.com/astral-sh/ruff/pull/12030))
+- Avoid consuming the newline for unterminated strings ([#12067](https://github.com/astral-sh/ruff/pull/12067))
+- Do not include the newline in the unterminated string range ([#12017](https://github.com/astral-sh/ruff/pull/12017))
+- Use the correct range to highlight line continuation errors ([#12016](https://github.com/astral-sh/ruff/pull/12016))
+- Consider 2-character EOL before line continuations ([#12035](https://github.com/astral-sh/ruff/pull/12035))
+- Consider line continuation character for re-lexing ([#12008](https://github.com/astral-sh/ruff/pull/12008))
+
+### Other changes
+
+- Upgrade the Unicode table used for measuring the line-length ([#11194](https://github.com/astral-sh/ruff/pull/11194))
+- Remove the deprecation error message for the nursery selector ([#10172](https://github.com/astral-sh/ruff/pull/10172))
+
+## 0.5.1
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement mutable-contextvar-default (B039) ([#12113](https://github.com/astral-sh/ruff/pull/12113))
+- \[`pycodestyle`\] Whitespace after decorator (`E204`) ([#12140](https://github.com/astral-sh/ruff/pull/12140))
+- \[`pytest`\] Reverse `PT001` and `PT0023` defaults ([#12106](https://github.com/astral-sh/ruff/pull/12106))
+
+### Rule changes
+
+- Enable token-based rules on source with syntax errors ([#11950](https://github.com/astral-sh/ruff/pull/11950))
+- \[`flake8-bandit`\] Detect `httpx` for `S113` ([#12174](https://github.com/astral-sh/ruff/pull/12174))
+- \[`numpy`\] Update `NPY201` to include exception deprecations ([#12065](https://github.com/astral-sh/ruff/pull/12065))
+- \[`pylint`\] Generate autofix for `duplicate-bases` (`PLE0241`) ([#12105](https://github.com/astral-sh/ruff/pull/12105))
+
+### Server
+
+- Avoid syntax error notification for source code actions ([#12148](https://github.com/astral-sh/ruff/pull/12148))
+- Consider the content of the new cells during notebook sync ([#12203](https://github.com/astral-sh/ruff/pull/12203))
+- Fix replacement edit range computation ([#12171](https://github.com/astral-sh/ruff/pull/12171))
+
+### Bug fixes
+
+- Disable auto-fix when source has syntax errors ([#12134](https://github.com/astral-sh/ruff/pull/12134))
+- Fix cache key collisions for paths with separators ([#12159](https://github.com/astral-sh/ruff/pull/12159))
+- Make `requires-python` inference robust to `==` ([#12091](https://github.com/astral-sh/ruff/pull/12091))
+- Use char-wise width instead of `str`-width ([#12135](https://github.com/astral-sh/ruff/pull/12135))
+- \[`pycodestyle`\] Avoid `E275` if keyword followed by comma ([#12136](https://github.com/astral-sh/ruff/pull/12136))
+- \[`pycodestyle`\] Avoid `E275` if keyword is followed by a semicolon ([#12095](https://github.com/astral-sh/ruff/pull/12095))
+- \[`pylint`\] Skip [dummy variables](https://docs.astral.sh/ruff/settings/#lint_dummy-variable-rgx) for `PLR1704` ([#12190](https://github.com/astral-sh/ruff/pull/12190))
+
+### Performance
+
+- Remove allocation in `parse_identifier` ([#12103](https://github.com/astral-sh/ruff/pull/12103))
+- Use `CompactString` for `Identifier` AST node ([#12101](https://github.com/astral-sh/ruff/pull/12101))
+
+## 0.5.2
+
+### Preview features
+
+- Use `space` separator before parenthesized expressions in comprehensions with leading comments ([#12282](https://github.com/astral-sh/ruff/pull/12282))
+- \[`flake8-async`\] Update `ASYNC100` to include `anyio` and `asyncio` ([#12221](https://github.com/astral-sh/ruff/pull/12221))
+- \[`flake8-async`\] Update `ASYNC109` to include `anyio` and `asyncio` ([#12236](https://github.com/astral-sh/ruff/pull/12236))
+- \[`flake8-async`\] Update `ASYNC110` to include `anyio` and `asyncio` ([#12261](https://github.com/astral-sh/ruff/pull/12261))
+- \[`flake8-async`\] Update `ASYNC115` to include `anyio` and `asyncio` ([#12262](https://github.com/astral-sh/ruff/pull/12262))
+- \[`flake8-async`\] Update `ASYNC116` to include `anyio` and `asyncio` ([#12266](https://github.com/astral-sh/ruff/pull/12266))
+
+### Rule changes
+
+- \[`flake8-return`\] Exempt properties from explicit return rule (`RET501`) ([#12243](https://github.com/astral-sh/ruff/pull/12243))
+- \[`numpy`\] Add `np.NAN`-to-`np.nan` diagnostic ([#12292](https://github.com/astral-sh/ruff/pull/12292))
+- \[`refurb`\] Make `list-reverse-copy` an unsafe fix ([#12303](https://github.com/astral-sh/ruff/pull/12303))
+
+### Server
+
+- Consider `include` and `extend-include` settings in native server ([#12252](https://github.com/astral-sh/ruff/pull/12252))
+- Include nested configurations in settings reloading ([#12253](https://github.com/astral-sh/ruff/pull/12253))
+
+### CLI
+
+- Omit code frames for fixes with empty ranges ([#12304](https://github.com/astral-sh/ruff/pull/12304))
+- Warn about formatter incompatibility for `D203` ([#12238](https://github.com/astral-sh/ruff/pull/12238))
+
+### Bug fixes
+
+- Make cache-write failures non-fatal on Windows ([#12302](https://github.com/astral-sh/ruff/pull/12302))
+- Treat `not` operations as boolean tests ([#12301](https://github.com/astral-sh/ruff/pull/12301))
+- \[`flake8-bandit`\] Avoid `S310` violations for HTTP-safe f-strings ([#12305](https://github.com/astral-sh/ruff/pull/12305))
+- \[`flake8-bandit`\] Support explicit string concatenations in S310 HTTP detection ([#12315](https://github.com/astral-sh/ruff/pull/12315))
+- \[`flake8-bandit`\] fix S113 false positive for httpx without `timeout` argument ([#12213](https://github.com/astral-sh/ruff/pull/12213))
+- \[`pycodestyle`\] Remove "non-obvious" allowance for E721 ([#12300](https://github.com/astral-sh/ruff/pull/12300))
+- \[`pyflakes`\] Consider `with` blocks as single-item branches for redefinition analysis ([#12311](https://github.com/astral-sh/ruff/pull/12311))
+- \[`refurb`\] Restrict forwarding for `newline` argument in `open()` calls to Python versions >= 3.10 ([#12244](https://github.com/astral-sh/ruff/pull/12244))
+
+### Documentation
+
+- Update help and documentation to reflect `--output-format full` default ([#12248](https://github.com/astral-sh/ruff/pull/12248))
+
+### Performance
+
+- Use more threads when discovering Python files ([#12258](https://github.com/astral-sh/ruff/pull/12258))
+
+## 0.5.3
+
+**Ruff 0.5.3 marks the stable release of the Ruff language server and introduces revamped
+[documentation](https://docs.astral.sh/ruff/editors), including [setup guides for your editor of
+choice](https://docs.astral.sh/ruff/editors/setup) and [the language server
+itself](https://docs.astral.sh/ruff/editors/settings)**.
+
+### Preview features
+
+- Formatter: Insert empty line between suite and alternative branch after function/class definition ([#12294](https://github.com/astral-sh/ruff/pull/12294))
+- \[`pyupgrade`\] Implement `unnecessary-default-type-args` (`UP043`) ([#12371](https://github.com/astral-sh/ruff/pull/12371))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Detect enumerate iterations in `loop-iterator-mutation` (`B909`) ([#12366](https://github.com/astral-sh/ruff/pull/12366))
+- \[`flake8-bugbear`\] Remove `discard`, `remove`, and `pop` allowance for `loop-iterator-mutation` (`B909`) ([#12365](https://github.com/astral-sh/ruff/pull/12365))
+- \[`pylint`\] Allow `repeated-equality-comparison` for mixed operations (`PLR1714`) ([#12369](https://github.com/astral-sh/ruff/pull/12369))
+- \[`pylint`\] Ignore `self` and `cls` when counting arguments (`PLR0913`) ([#12367](https://github.com/astral-sh/ruff/pull/12367))
+- \[`pylint`\] Use UTF-8 as default encoding in `unspecified-encoding` fix (`PLW1514`) ([#12370](https://github.com/astral-sh/ruff/pull/12370))
+
+### Server
+
+- Build settings index in parallel for the native server ([#12299](https://github.com/astral-sh/ruff/pull/12299))
+- Use fallback settings when indexing the project ([#12362](https://github.com/astral-sh/ruff/pull/12362))
+- Consider `--preview` flag for `server` subcommand for the linter and formatter ([#12208](https://github.com/astral-sh/ruff/pull/12208))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Allow additional arguments for `sum` and `max` comprehensions (`C419`) ([#12364](https://github.com/astral-sh/ruff/pull/12364))
+- \[`pylint`\] Avoid dropping extra boolean operations in `repeated-equality-comparison` (`PLR1714`) ([#12368](https://github.com/astral-sh/ruff/pull/12368))
+- \[`pylint`\] Consider expression before statement when determining binding kind (`PLR1704`) ([#12346](https://github.com/astral-sh/ruff/pull/12346))
+
+### Documentation
+
+- Add docs for Ruff language server ([#12344](https://github.com/astral-sh/ruff/pull/12344))
+- Migrate to standalone docs repo ([#12341](https://github.com/astral-sh/ruff/pull/12341))
+- Update versioning policy for editor integration ([#12375](https://github.com/astral-sh/ruff/pull/12375))
+
+### Other changes
+
+- Publish Wasm API to npm ([#12317](https://github.com/astral-sh/ruff/pull/12317))
+
+## 0.5.4
+
+### Rule changes
+
+- \[`ruff`\] Rename `RUF007` to `zip-instead-of-pairwise` ([#12399](https://github.com/astral-sh/ruff/pull/12399))
+
+### Bug fixes
+
+- \[`flake8-builtins`\] Avoid shadowing diagnostics for `@override` methods ([#12415](https://github.com/astral-sh/ruff/pull/12415))
+- \[`flake8-comprehensions`\] Insert parentheses for multi-argument generators ([#12422](https://github.com/astral-sh/ruff/pull/12422))
+- \[`pydocstyle`\] Handle escaped docstrings within docstring (`D301`) ([#12192](https://github.com/astral-sh/ruff/pull/12192))
+
+### Documentation
+
+- Fix GitHub link to Neovim setup ([#12410](https://github.com/astral-sh/ruff/pull/12410))
+- Fix `output-format` default in settings reference ([#12409](https://github.com/astral-sh/ruff/pull/12409))
+
+## 0.5.5
+
+### Preview features
+
+- \[`fastapi`\] Implement `fastapi-redundant-response-model` (`FAST001`) and `fastapi-non-annotated-dependency`(`FAST002`) ([#11579](https://github.com/astral-sh/ruff/pull/11579))
+- \[`pydoclint`\] Implement `docstring-missing-exception` (`DOC501`) and `docstring-extraneous-exception` (`DOC502`) ([#11471](https://github.com/astral-sh/ruff/pull/11471))
+
+### Rule changes
+
+- \[`numpy`\] Fix NumPy 2.0 rule for `np.alltrue` and `np.sometrue` ([#12473](https://github.com/astral-sh/ruff/pull/12473))
+- \[`numpy`\] Ignore `NPY201` inside `except` blocks for compatibility with older numpy versions ([#12490](https://github.com/astral-sh/ruff/pull/12490))
+- \[`pep8-naming`\] Avoid applying `ignore-names` to `self` and `cls` function names (`N804`, `N805`) ([#12497](https://github.com/astral-sh/ruff/pull/12497))
+
+### Formatter
+
+- Fix incorrect placement of leading function comment with type params ([#12447](https://github.com/astral-sh/ruff/pull/12447))
+
+### Server
+
+- Do not bail code action resolution when a quick fix is requested ([#12462](https://github.com/astral-sh/ruff/pull/12462))
+
+### Bug fixes
+
+- Fix `Ord` implementation of `cmp_fix` ([#12471](https://github.com/astral-sh/ruff/pull/12471))
+- Raise syntax error for unparenthesized generator expression in multi-argument call ([#12445](https://github.com/astral-sh/ruff/pull/12445))
+- \[`pydoclint`\] Fix panic in `DOC501` reported in [#12428](https://github.com/astral-sh/ruff/pull/12428) ([#12435](https://github.com/astral-sh/ruff/pull/12435))
+- \[`flake8-bugbear`\] Allow singleton tuples with starred expressions in `B013` ([#12484](https://github.com/astral-sh/ruff/pull/12484))
+
+### Documentation
+
+- Add Eglot setup guide for Emacs editor ([#12426](https://github.com/astral-sh/ruff/pull/12426))
+- Add note about the breaking change in `nvim-lspconfig` ([#12507](https://github.com/astral-sh/ruff/pull/12507))
+- Add note to include notebook files for native server ([#12449](https://github.com/astral-sh/ruff/pull/12449))
+- Add setup docs for Zed editor ([#12501](https://github.com/astral-sh/ruff/pull/12501))
+
+## 0.5.6
+
+Ruff 0.5.6 automatically enables linting and formatting of notebooks in _preview mode_.
+You can opt-out of this behavior by adding `*.ipynb` to the `extend-exclude` setting.
+
+```toml
+[tool.ruff]
+extend-exclude = ["*.ipynb"]
+```
+
+### Preview features
+
+- Enable notebooks by default in preview mode ([#12621](https://github.com/astral-sh/ruff/pull/12621))
+- \[`flake8-builtins`\] Implement import, lambda, and module shadowing ([#12546](https://github.com/astral-sh/ruff/pull/12546))
+- \[`pydoclint`\] Add `docstring-missing-returns` (`DOC201`) and `docstring-extraneous-returns` (`DOC202`) ([#12485](https://github.com/astral-sh/ruff/pull/12485))
+
+### Rule changes
+
+- \[`flake8-return`\] Exempt cached properties and other property-like decorators from explicit return rule (`RET501`) ([#12563](https://github.com/astral-sh/ruff/pull/12563))
+
+### Server
+
+- Make server panic hook more error resilient ([#12610](https://github.com/astral-sh/ruff/pull/12610))
+- Use `$/logTrace` for server trace logs in Zed and VS Code ([#12564](https://github.com/astral-sh/ruff/pull/12564))
+- Keep track of deleted cells for reorder change request ([#12575](https://github.com/astral-sh/ruff/pull/12575))
+
+### Configuration
+
+- \[`flake8-implicit-str-concat`\] Always allow explicit multi-line concatenations when implicit concatenations are banned ([#12532](https://github.com/astral-sh/ruff/pull/12532))
+
+### Bug fixes
+
+- \[`flake8-async`\] Avoid flagging `asyncio.timeout`s as unused when the context manager includes `asyncio.TaskGroup` ([#12605](https://github.com/astral-sh/ruff/pull/12605))
+- \[`flake8-slots`\] Avoid recommending `__slots__` for classes that inherit from more than `namedtuple` ([#12531](https://github.com/astral-sh/ruff/pull/12531))
+- \[`isort`\] Avoid marking required imports as unused ([#12537](https://github.com/astral-sh/ruff/pull/12537))
+- \[`isort`\] Preserve trailing inline comments on import-from statements ([#12498](https://github.com/astral-sh/ruff/pull/12498))
+- \[`pycodestyle`\] Add newlines before comments (`E305`) ([#12606](https://github.com/astral-sh/ruff/pull/12606))
+- \[`pycodestyle`\] Don't attach comments with mismatched indents ([#12604](https://github.com/astral-sh/ruff/pull/12604))
+- \[`pyflakes`\] Fix preview-mode bugs in `F401` when attempting to autofix unused first-party submodule imports in an `__init__.py` file ([#12569](https://github.com/astral-sh/ruff/pull/12569))
+- \[`pylint`\] Respect start index in `unnecessary-list-index-lookup` ([#12603](https://github.com/astral-sh/ruff/pull/12603))
+- \[`pyupgrade`\] Avoid recommending no-argument super in `slots=True` dataclasses ([#12530](https://github.com/astral-sh/ruff/pull/12530))
+- \[`pyupgrade`\] Use colon rather than dot formatting for integer-only types ([#12534](https://github.com/astral-sh/ruff/pull/12534))
+- Fix NFKC normalization bug when removing unused imports ([#12571](https://github.com/astral-sh/ruff/pull/12571))
+
+### Other changes
+
+- Consider more stdlib decorators to be property-like ([#12583](https://github.com/astral-sh/ruff/pull/12583))
+- Improve handling of metaclasses in various linter rules ([#12579](https://github.com/astral-sh/ruff/pull/12579))
+- Improve consistency between linter rules in determining whether a function is property ([#12581](https://github.com/astral-sh/ruff/pull/12581))
+
+## 0.5.7
+
+### Preview features
+
+- \[`flake8-comprehensions`\] Account for list and set comprehensions in `unnecessary-literal-within-tuple-call` (`C409`) ([#12657](https://github.com/astral-sh/ruff/pull/12657))
+- \[`flake8-pyi`\] Add autofix for `future-annotations-in-stub` (`PYI044`) ([#12676](https://github.com/astral-sh/ruff/pull/12676))
+- \[`flake8-return`\] Avoid syntax error when auto-fixing `RET505` with mixed indentation (space and tabs) ([#12740](https://github.com/astral-sh/ruff/pull/12740))
+- \[`pydoclint`\] Add `docstring-missing-yields` (`DOC402`) and `docstring-extraneous-yields` (`DOC403`) ([#12538](https://github.com/astral-sh/ruff/pull/12538))
+- \[`pydoclint`\] Avoid `DOC201` if docstring begins with "Return", "Returns", "Yield", or "Yields" ([#12675](https://github.com/astral-sh/ruff/pull/12675))
+- \[`pydoclint`\] Deduplicate collected exceptions after traversing function bodies (`DOC501`) ([#12642](https://github.com/astral-sh/ruff/pull/12642))
+- \[`pydoclint`\] Ignore `DOC` errors for stub functions ([#12651](https://github.com/astral-sh/ruff/pull/12651))
+- \[`pydoclint`\] Teach rules to understand reraised exceptions as being explicitly raised (`DOC501`, `DOC502`) ([#12639](https://github.com/astral-sh/ruff/pull/12639))
+- \[`ruff`\] Implement `incorrectly-parenthesized-tuple-in-subscript` (`RUF031`) ([#12480](https://github.com/astral-sh/ruff/pull/12480))
+- \[`ruff`\] Mark `RUF023` fix as unsafe if `__slots__` is not a set and the binding is used elsewhere ([#12692](https://github.com/astral-sh/ruff/pull/12692))
+
+### Rule changes
+
+- \[`refurb`\] Add autofix for `implicit-cwd` (`FURB177`) ([#12708](https://github.com/astral-sh/ruff/pull/12708))
+- \[`ruff`\] Add autofix for `zip-instead-of-pairwise` (`RUF007`) ([#12663](https://github.com/astral-sh/ruff/pull/12663))
+- \[`tryceratops`\] Add `BaseException` to `raise-vanilla-class` rule (`TRY002`) ([#12620](https://github.com/astral-sh/ruff/pull/12620))
+
+### Server
+
+- Ignore non-file workspace URL; Ruff will display a warning notification in this case ([#12725](https://github.com/astral-sh/ruff/pull/12725))
+
+### CLI
+
+- Fix cache invalidation for nested `pyproject.toml` files ([#12727](https://github.com/astral-sh/ruff/pull/12727))
+
+### Bug fixes
+
+- \[`flake8-async`\] Fix false positives with multiple `async with` items (`ASYNC100`) ([#12643](https://github.com/astral-sh/ruff/pull/12643))
+- \[`flake8-bandit`\] Avoid false-positives for list concatenations in SQL construction (`S608`) ([#12720](https://github.com/astral-sh/ruff/pull/12720))
+- \[`flake8-bugbear`\] Treat `return` as equivalent to `break` (`B909`) ([#12646](https://github.com/astral-sh/ruff/pull/12646))
+- \[`flake8-comprehensions`\] Set comprehensions not a violation for `sum` in `unnecessary-comprehension-in-call` (`C419`) ([#12691](https://github.com/astral-sh/ruff/pull/12691))
+- \[`flake8-simplify`\] Parenthesize conditions based on precedence when merging if arms (`SIM114`) ([#12737](https://github.com/astral-sh/ruff/pull/12737))
+- \[`pydoclint`\] Try both 'Raises' section styles when convention is unspecified (`DOC501`) ([#12649](https://github.com/astral-sh/ruff/pull/12649))

changelogs/0.6.x.md

@@ -0,0 +1,331 @@
+# Changelog 0.6.x
+
+## 0.6.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.6.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- Lint and format Jupyter Notebook by default ([#12878](https://github.com/astral-sh/ruff/pull/12878)).
+- Detect imports in `src` layouts by default for `isort` rules ([#12848](https://github.com/astral-sh/ruff/pull/12848))
+- The pytest rules `PT001` and `PT023` now default to omitting the decorator parentheses when there are no arguments ([#12838](https://github.com/astral-sh/ruff/pull/12838)).
+
+### Deprecations
+
+The following rules are now deprecated:
+
+- [`pytest-missing-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-missing-fixture-name-underscore/) (`PT004`)
+- [`pytest-incorrect-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-incorrect-fixture-name-underscore/) (`PT005`)
+- [`unpacked-list-comprehension`](https://docs.astral.sh/ruff/rules/unpacked-list-comprehension/) (`UP027`)
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- [`unnecessary-dict-comprehension-for-iterable`](https://docs.astral.sh/ruff/rules/unnecessary-dict-comprehension-for-iterable/): `RUF025` to `C420`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`singledispatch-method`](https://docs.astral.sh/ruff/rules/singledispatch-method/) (`PLE1519`)
+- [`singledispatchmethod-function`](https://docs.astral.sh/ruff/rules/singledispatchmethod-function/) (`PLE1520`)
+- [`bad-staticmethod-argument`](https://docs.astral.sh/ruff/rules/bad-staticmethod-argument/) (`PLW0211`)
+- [`if-stmt-min-max`](https://docs.astral.sh/ruff/rules/if-stmt-min-max/) (`PLR1730`)
+- [`invalid-bytes-return-type`](https://docs.astral.sh/ruff/rules/invalid-bytes-return-type/) (`PLE0308`)
+- [`invalid-hash-return-type`](https://docs.astral.sh/ruff/rules/invalid-hash-return-type/) (`PLE0309`)
+- [`invalid-index-return-type`](https://docs.astral.sh/ruff/rules/invalid-index-return-type/) (`PLE0305`)
+- [`invalid-length-return-type`](https://docs.astral.sh/ruff/rules/invalid-length-return-type/) (`PLEE303`)
+- [`self-or-cls-assignment`](https://docs.astral.sh/ruff/rules/self-or-cls-assignment/) (`PLW0642`)
+- [`byte-string-usage`](https://docs.astral.sh/ruff/rules/byte-string-usage/) (`PYI057`)
+- [`duplicate-literal-member`](https://docs.astral.sh/ruff/rules/duplicate-literal-member/) (`PYI062`)
+- [`redirected-noqa`](https://docs.astral.sh/ruff/rules/redirected-noqa/) (`RUF101`)
+
+The following behaviors have been stabilized:
+
+- [`cancel-scope-no-checkpoint`](https://docs.astral.sh/ruff/rules/cancel-scope-no-checkpoint/) (`ASYNC100`): Support `asyncio` and `anyio` context managers.
+- [`async-function-with-timeout`](https://docs.astral.sh/ruff/rules/async-function-with-timeout/) (`ASYNC109`): Support `asyncio` and `anyio` context managers.
+- [`async-busy-wait`](https://docs.astral.sh/ruff/rules/async-busy-wait/) (`ASYNC110`): Support `asyncio` and `anyio` context managers.
+- [`async-zero-sleep`](https://docs.astral.sh/ruff/rules/async-zero-sleep/) (`ASYNC115`): Support `anyio` context managers.
+- [`long-sleep-not-forever`](https://docs.astral.sh/ruff/rules/long-sleep-not-forever/) (`ASYNC116`): Support `anyio` context managers.
+
+The following fixes have been stabilized:
+
+- [`superfluous-else-return`](https://docs.astral.sh/ruff/rules/superfluous-else-return/) (`RET505`)
+- [`superfluous-else-raise`](https://docs.astral.sh/ruff/rules/superfluous-else-raise/) (`RET506`)
+- [`superfluous-else-continue`](https://docs.astral.sh/ruff/rules/superfluous-else-continue/) (`RET507`)
+- [`superfluous-else-break`](https://docs.astral.sh/ruff/rules/superfluous-else-break/) (`RET508`)
+
+### Preview features
+
+- \[`flake8-simplify`\] Further simplify to binary in preview for (`SIM108`) ([#12796](https://github.com/astral-sh/ruff/pull/12796))
+- \[`pyupgrade`\] Show violations without auto-fix (`UP031`) ([#11229](https://github.com/astral-sh/ruff/pull/11229))
+
+### Rule changes
+
+- \[`flake8-import-conventions`\] Add `xml.etree.ElementTree` to default conventions ([#12455](https://github.com/astral-sh/ruff/pull/12455))
+- \[`flake8-pytest-style`\] Add a space after comma in CSV output (`PT006`) ([#12853](https://github.com/astral-sh/ruff/pull/12853))
+
+### Server
+
+- Show a message for incorrect settings ([#12781](https://github.com/astral-sh/ruff/pull/12781))
+
+### Bug fixes
+
+- \[`flake8-async`\] Do not lint yield in context manager (`ASYNC100`) ([#12896](https://github.com/astral-sh/ruff/pull/12896))
+- \[`flake8-comprehensions`\] Do not lint `async for` comprehensions (`C419`) ([#12895](https://github.com/astral-sh/ruff/pull/12895))
+- \[`flake8-return`\] Only add return `None` at end of a function (`RET503`) ([#11074](https://github.com/astral-sh/ruff/pull/11074))
+- \[`flake8-type-checking`\] Avoid treating `dataclasses.KW_ONLY` as typing-only (`TCH003`) ([#12863](https://github.com/astral-sh/ruff/pull/12863))
+- \[`pep8-naming`\] Treat `type(Protocol)` et al as metaclass base (`N805`) ([#12770](https://github.com/astral-sh/ruff/pull/12770))
+- \[`pydoclint`\] Don't enforce returns and yields in abstract methods (`DOC201`, `DOC202`) ([#12771](https://github.com/astral-sh/ruff/pull/12771))
+- \[`ruff`\] Skip tuples with slice expressions in (`RUF031`) ([#12768](https://github.com/astral-sh/ruff/pull/12768))
+- \[`ruff`\] Ignore unparenthesized tuples in subscripts when the subscript is a type annotation or type alias (`RUF031`) ([#12762](https://github.com/astral-sh/ruff/pull/12762))
+- \[`ruff`\] Ignore template strings passed to logging and `builtins._()` calls (`RUF027`) ([#12889](https://github.com/astral-sh/ruff/pull/12889))
+- \[`ruff`\] Do not remove parens for tuples with starred expressions in Python \<=3.10 (`RUF031`) ([#12784](https://github.com/astral-sh/ruff/pull/12784))
+- Evaluate default parameter values for a function in that function's enclosing scope ([#12852](https://github.com/astral-sh/ruff/pull/12852))
+
+### Other changes
+
+- Respect VS Code cell metadata when detecting the language of Jupyter Notebook cells ([#12864](https://github.com/astral-sh/ruff/pull/12864))
+- Respect `kernelspec` notebook metadata when detecting the preferred language for a Jupyter Notebook ([#12875](https://github.com/astral-sh/ruff/pull/12875))
+
+## 0.6.1
+
+This is a hotfix release to address an issue with `ruff-pre-commit`. In v0.6,
+Ruff changed its behavior to lint and format Jupyter notebooks by default;
+however, due to an oversight, these files were still excluded by default if
+Ruff was run via pre-commit, leading to inconsistent behavior.
+This has [now been fixed](https://github.com/astral-sh/ruff-pre-commit/pull/96).
+
+### Preview features
+
+- \[`fastapi`\] Implement `fast-api-unused-path-parameter` (`FAST003`) ([#12638](https://github.com/astral-sh/ruff/pull/12638))
+
+### Rule changes
+
+- \[`pylint`\] Rename `too-many-positional` to `too-many-positional-arguments` (`R0917`) ([#12905](https://github.com/astral-sh/ruff/pull/12905))
+
+### Server
+
+- Fix crash when applying "fix-all" code-action to notebook cells ([#12929](https://github.com/astral-sh/ruff/pull/12929))
+
+### Other changes
+
+- \[`flake8-naming`\]: Respect import conventions (`N817`) ([#12922](https://github.com/astral-sh/ruff/pull/12922))
+
+## 0.6.2
+
+### Preview features
+
+- \[`flake8-simplify`\] Extend `open-file-with-context-handler` to work with other standard-library IO modules (`SIM115`) ([#12959](https://github.com/astral-sh/ruff/pull/12959))
+- \[`ruff`\] Avoid `unused-async` for functions with FastAPI route decorator (`RUF029`) ([#12938](https://github.com/astral-sh/ruff/pull/12938))
+- \[`ruff`\] Ignore `fstring-missing-syntax` (`RUF027`) for `fastAPI` paths ([#12939](https://github.com/astral-sh/ruff/pull/12939))
+- \[`ruff`\] Implement check for Decimal called with a float literal (RUF032) ([#12909](https://github.com/astral-sh/ruff/pull/12909))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Update diagnostic message when expression is at the end of function (`B015`) ([#12944](https://github.com/astral-sh/ruff/pull/12944))
+- \[`flake8-pyi`\] Skip type annotations in `string-or-bytes-too-long` (`PYI053`) ([#13002](https://github.com/astral-sh/ruff/pull/13002))
+- \[`flake8-type-checking`\] Always recognise relative imports as first-party ([#12994](https://github.com/astral-sh/ruff/pull/12994))
+- \[`flake8-unused-arguments`\] Ignore unused arguments on stub functions (`ARG001`) ([#12966](https://github.com/astral-sh/ruff/pull/12966))
+- \[`pylint`\] Ignore augmented assignment for `self-cls-assignment` (`PLW0642`) ([#12957](https://github.com/astral-sh/ruff/pull/12957))
+
+### Server
+
+- Show full context in error log messages ([#13029](https://github.com/astral-sh/ruff/pull/13029))
+
+### Bug fixes
+
+- \[`pep8-naming`\] Don't flag `from` imports following conventional import names (`N817`) ([#12946](https://github.com/astral-sh/ruff/pull/12946))
+- \[`pylint`\] - Allow `__new__` methods to have `cls` as their first argument even if decorated with `@staticmethod` for `bad-staticmethod-argument` (`PLW0211`) ([#12958](https://github.com/astral-sh/ruff/pull/12958))
+
+### Documentation
+
+- Add `hyperfine` installation instructions; update `hyperfine` code samples ([#13034](https://github.com/astral-sh/ruff/pull/13034))
+- Expand note to use Ruff with other language server in Kate ([#12806](https://github.com/astral-sh/ruff/pull/12806))
+- Update example for `PT001` as per the new default behavior ([#13019](https://github.com/astral-sh/ruff/pull/13019))
+- \[`perflint`\] Improve docs for `try-except-in-loop` (`PERF203`) ([#12947](https://github.com/astral-sh/ruff/pull/12947))
+- \[`pydocstyle`\] Add reference to `lint.pydocstyle.ignore-decorators` setting to rule docs ([#12996](https://github.com/astral-sh/ruff/pull/12996))
+
+## 0.6.3
+
+### Preview features
+
+- \[`flake8-simplify`\] Extend `open-file-with-context-handler` to work with `dbm.sqlite3` (`SIM115`) ([#13104](https://github.com/astral-sh/ruff/pull/13104))
+- \[`pycodestyle`\] Disable `E741` in stub files (`.pyi`) ([#13119](https://github.com/astral-sh/ruff/pull/13119))
+- \[`pydoclint`\] Avoid `DOC201` on explicit returns in functions that only return `None` ([#13064](https://github.com/astral-sh/ruff/pull/13064))
+
+### Rule changes
+
+- \[`flake8-async`\] Disable check for `asyncio` before Python 3.11 (`ASYNC109`) ([#13023](https://github.com/astral-sh/ruff/pull/13023))
+
+### Bug fixes
+
+- \[`FastAPI`\] Avoid introducing invalid syntax in fix for `fast-api-non-annotated-dependency` (`FAST002`) ([#13133](https://github.com/astral-sh/ruff/pull/13133))
+- \[`flake8-implicit-str-concat`\] Normalize octals before merging concatenated strings in `single-line-implicit-string-concatenation` (`ISC001`) ([#13118](https://github.com/astral-sh/ruff/pull/13118))
+- \[`flake8-pytest-style`\] Improve help message for `pytest-incorrect-mark-parentheses-style` (`PT023`) ([#13092](https://github.com/astral-sh/ruff/pull/13092))
+- \[`pylint`\] Avoid autofix for calls that aren't `min` or `max` as starred expression (`PLW3301`) ([#13089](https://github.com/astral-sh/ruff/pull/13089))
+- \[`ruff`\] Add `datetime.time`, `datetime.tzinfo`, and `datetime.timezone` as immutable function calls (`RUF009`) ([#13109](https://github.com/astral-sh/ruff/pull/13109))
+- \[`ruff`\] Extend comment deletion for `RUF100` to include trailing text from `noqa` directives while preserving any following comments on the same line, if any ([#13105](https://github.com/astral-sh/ruff/pull/13105))
+- Fix dark theme on initial page load for the Ruff playground ([#13077](https://github.com/astral-sh/ruff/pull/13077))
+
+## 0.6.4
+
+### Preview features
+
+- \[`flake8-builtins`\] Use dynamic builtins list based on Python version ([#13172](https://github.com/astral-sh/ruff/pull/13172))
+- \[`pydoclint`\] Permit yielding `None` in `DOC402` and `DOC403` ([#13148](https://github.com/astral-sh/ruff/pull/13148))
+- \[`pylint`\] Update diagnostic message for `PLW3201` ([#13194](https://github.com/astral-sh/ruff/pull/13194))
+- \[`ruff`\] Implement `post-init-default` (`RUF033`) ([#13192](https://github.com/astral-sh/ruff/pull/13192))
+- \[`ruff`\] Implement useless if-else (`RUF034`) ([#13218](https://github.com/astral-sh/ruff/pull/13218))
+
+### Rule changes
+
+- \[`flake8-pyi`\] Respect `pep8_naming.classmethod-decorators` settings when determining if a method is a classmethod in `custom-type-var-return-type` (`PYI019`) ([#13162](https://github.com/astral-sh/ruff/pull/13162))
+- \[`flake8-pyi`\] Teach various rules that annotations might be stringized ([#12951](https://github.com/astral-sh/ruff/pull/12951))
+- \[`pylint`\] Avoid `no-self-use` for `attrs`-style validators ([#13166](https://github.com/astral-sh/ruff/pull/13166))
+- \[`pylint`\] Recurse into subscript subexpressions when searching for list/dict lookups (`PLR1733`, `PLR1736`) ([#13186](https://github.com/astral-sh/ruff/pull/13186))
+- \[`pyupgrade`\] Detect `aiofiles.open` calls in `UP015` ([#13173](https://github.com/astral-sh/ruff/pull/13173))
+- \[`pyupgrade`\] Mark `sys.version_info[0] < 3` and similar comparisons as outdated (`UP036`) ([#13175](https://github.com/astral-sh/ruff/pull/13175))
+
+### CLI
+
+- Enrich messages of SARIF results ([#13180](https://github.com/astral-sh/ruff/pull/13180))
+- Handle singular case for incompatible rules warning in `ruff format` output ([#13212](https://github.com/astral-sh/ruff/pull/13212))
+
+### Bug fixes
+
+- \[`pydocstyle`\] Improve heuristics for detecting Google-style docstrings ([#13142](https://github.com/astral-sh/ruff/pull/13142))
+- \[`refurb`\] Treat `sep` arguments with effects as unsafe removals (`FURB105`) ([#13165](https://github.com/astral-sh/ruff/pull/13165))
+
+## 0.6.5
+
+### Preview features
+
+- \[`pydoclint`\] Ignore `DOC201` when function name is "**new**" ([#13300](https://github.com/astral-sh/ruff/pull/13300))
+- \[`refurb`\] Implement `slice-to-remove-prefix-or-suffix` (`FURB188`) ([#13256](https://github.com/astral-sh/ruff/pull/13256))
+
+### Rule changes
+
+- \[`eradicate`\] Ignore script-comments with multiple end-tags (`ERA001`) ([#13283](https://github.com/astral-sh/ruff/pull/13283))
+- \[`pyflakes`\] Improve error message for `UndefinedName` when a builtin was added in a newer version than specified in Ruff config (`F821`) ([#13293](https://github.com/astral-sh/ruff/pull/13293))
+
+### Server
+
+- Add support for extensionless Python files for server ([#13326](https://github.com/astral-sh/ruff/pull/13326))
+- Fix configuration inheritance for configurations specified in the LSP settings ([#13285](https://github.com/astral-sh/ruff/pull/13285))
+
+### Bug fixes
+
+- \[`ruff`\] Handle unary operators in `decimal-from-float-literal` (`RUF032`) ([#13275](https://github.com/astral-sh/ruff/pull/13275))
+
+### CLI
+
+- Only include rules with diagnostics in SARIF metadata ([#13268](https://github.com/astral-sh/ruff/pull/13268))
+
+### Playground
+
+- Add "Copy as pyproject.toml/ruff.toml" and "Paste from TOML" ([#13328](https://github.com/astral-sh/ruff/pull/13328))
+- Fix errors not shown for restored snippet on page load ([#13262](https://github.com/astral-sh/ruff/pull/13262))
+
+## 0.6.6
+
+### Preview features
+
+- \[`refurb`\] Skip `slice-to-remove-prefix-or-suffix` (`FURB188`) when non-trivial slice steps are present ([#13405](https://github.com/astral-sh/ruff/pull/13405))
+- Add a subcommand to generate dependency graphs ([#13402](https://github.com/astral-sh/ruff/pull/13402))
+
+### Formatter
+
+- Fix placement of inline parameter comments ([#13379](https://github.com/astral-sh/ruff/pull/13379))
+
+### Server
+
+- Fix off-by one error in the `LineIndex::offset` calculation ([#13407](https://github.com/astral-sh/ruff/pull/13407))
+
+### Bug fixes
+
+- \[`fastapi`\] Respect FastAPI aliases in route definitions ([#13394](https://github.com/astral-sh/ruff/pull/13394))
+- \[`pydocstyle`\] Respect word boundaries when detecting function signature in docs ([#13388](https://github.com/astral-sh/ruff/pull/13388))
+
+### Documentation
+
+- Add backlinks to rule overview linter ([#13368](https://github.com/astral-sh/ruff/pull/13368))
+- Fix documentation for editor vim plugin ALE ([#13348](https://github.com/astral-sh/ruff/pull/13348))
+- Fix rendering of `FURB188` docs ([#13406](https://github.com/astral-sh/ruff/pull/13406))
+
+## 0.6.7
+
+### Preview features
+
+- Add Python version support to ruff analyze CLI ([#13426](https://github.com/astral-sh/ruff/pull/13426))
+- Add `exclude` support to `ruff analyze` ([#13425](https://github.com/astral-sh/ruff/pull/13425))
+- Fix parentheses around return type annotations ([#13381](https://github.com/astral-sh/ruff/pull/13381))
+
+### Rule changes
+
+- \[`pycodestyle`\] Fix: Don't autofix if the first line ends in a question mark? (D400) ([#13399](https://github.com/astral-sh/ruff/pull/13399))
+
+### Bug fixes
+
+- Respect `lint.exclude` in ruff check `--add-noqa` ([#13427](https://github.com/astral-sh/ruff/pull/13427))
+
+### Performance
+
+- Avoid tracking module resolver files in Salsa ([#13437](https://github.com/astral-sh/ruff/pull/13437))
+- Use `forget` for module resolver database ([#13438](https://github.com/astral-sh/ruff/pull/13438))
+
+## 0.6.8
+
+### Preview features
+
+- Remove unnecessary parentheses around `match case` clauses ([#13510](https://github.com/astral-sh/ruff/pull/13510))
+- Parenthesize overlong `if` guards in `match..case` clauses ([#13513](https://github.com/astral-sh/ruff/pull/13513))
+- Detect basic wildcard imports in `ruff analyze graph` ([#13486](https://github.com/astral-sh/ruff/pull/13486))
+- \[`pylint`\] Implement `boolean-chained-comparison` (`R1716`) ([#13435](https://github.com/astral-sh/ruff/pull/13435))
+
+### Rule changes
+
+- \[`lake8-simplify`\] Detect `SIM910` when using variadic keyword arguments, i.e., `**kwargs` ([#13503](https://github.com/astral-sh/ruff/pull/13503))
+- \[`pyupgrade`\] Avoid false negatives with non-reference shadowed bindings of loop variables (`UP028`) ([#13504](https://github.com/astral-sh/ruff/pull/13504))
+
+### Bug fixes
+
+- Detect tuples bound to variadic positional arguments i.e. `*args` ([#13512](https://github.com/astral-sh/ruff/pull/13512))
+- Exit gracefully on broken pipe errors ([#13485](https://github.com/astral-sh/ruff/pull/13485))
+- Avoid panic when analyze graph hits broken pipe ([#13484](https://github.com/astral-sh/ruff/pull/13484))
+
+### Performance
+
+- Reuse `BTreeSets` in module resolver ([#13440](https://github.com/astral-sh/ruff/pull/13440))
+- Skip traversal for non-compound statements ([#13441](https://github.com/astral-sh/ruff/pull/13441))
+
+## 0.6.9
+
+### Preview features
+
+- Fix codeblock dynamic line length calculation for indented docstring examples ([#13523](https://github.com/astral-sh/ruff/pull/13523))
+- \[`refurb`\] Mark `FURB118` fix as unsafe ([#13613](https://github.com/astral-sh/ruff/pull/13613))
+
+### Rule changes
+
+- \[`pydocstyle`\] Don't raise `D208` when last line is non-empty ([#13372](https://github.com/astral-sh/ruff/pull/13372))
+- \[`pylint`\] Preserve trivia (i.e. comments) in `PLR5501` autofix ([#13573](https://github.com/astral-sh/ruff/pull/13573))
+
+### Configuration
+
+- \[`pyflakes`\] Add `allow-unused-imports` setting for `unused-import` rule (`F401`) ([#13601](https://github.com/astral-sh/ruff/pull/13601))
+
+### Bug fixes
+
+- Support ruff discovery in pip build environments ([#13591](https://github.com/astral-sh/ruff/pull/13591))
+- \[`flake8-bugbear`\] Avoid short circuiting `B017` for multiple context managers ([#13609](https://github.com/astral-sh/ruff/pull/13609))
+- \[`pylint`\] Do not offer an invalid fix for `PLR1716` when the comparisons contain parenthesis ([#13527](https://github.com/astral-sh/ruff/pull/13527))
+- \[`pyupgrade`\] Fix `UP043` to apply to `collections.abc.Generator` and `collections.abc.AsyncGenerator` ([#13611](https://github.com/astral-sh/ruff/pull/13611))
+- \[`refurb`\] Fix handling of slices in tuples for `FURB118`, e.g., `x[:, 1]` ([#13518](https://github.com/astral-sh/ruff/pull/13518))
+
+### Documentation
+
+- Update GitHub Action link to `astral-sh/ruff-action` ([#13551](https://github.com/astral-sh/ruff/pull/13551))

changelogs/0.7.x.md

@@ -0,0 +1,185 @@
+# Changelog 0.7.x
+
+## 0.7.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.7.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+- The pytest rules `PT001` and `PT023` now default to omitting the decorator parentheses when there are no arguments
+    ([#12838](https://github.com/astral-sh/ruff/pull/12838), [#13292](https://github.com/astral-sh/ruff/pull/13292)).
+    This was a change that we attempted to make in Ruff v0.6.0, but only partially made due to an error on our part.
+    See the [blog post](https://astral.sh/blog/ruff-v0.7.0) for more details.
+- The `useless-try-except` rule (in our `tryceratops` category) has been recoded from `TRY302` to
+    `TRY203` ([#13502](https://github.com/astral-sh/ruff/pull/13502)). This ensures Ruff's code is consistent with
+    the same rule in the [`tryceratops`](https://github.com/guilatrova/tryceratops) linter.
+- The `lint.allow-unused-imports` setting has been removed ([#13677](https://github.com/astral-sh/ruff/pull/13677)). Use
+    [`lint.pyflakes.allow-unused-imports`](https://docs.astral.sh/ruff/settings/#lint_pyflakes_allowed-unused-imports)
+    instead.
+
+### Formatter preview style
+
+- Normalize implicit concatenated f-string quotes per part ([#13539](https://github.com/astral-sh/ruff/pull/13539))
+
+### Preview linter features
+
+- \[`refurb`\] implement `hardcoded-string-charset` (FURB156) ([#13530](https://github.com/astral-sh/ruff/pull/13530))
+- \[`refurb`\] Count codepoints not bytes for `slice-to-remove-prefix-or-suffix (FURB188)` ([#13631](https://github.com/astral-sh/ruff/pull/13631))
+
+### Rule changes
+
+- \[`pylint`\] Mark `PLE1141` fix as unsafe ([#13629](https://github.com/astral-sh/ruff/pull/13629))
+- \[`flake8-async`\] Consider async generators to be "checkpoints" for `cancel-scope-no-checkpoint` (`ASYNC100`) ([#13639](https://github.com/astral-sh/ruff/pull/13639))
+- \[`flake8-bugbear`\] Do not suggest setting parameter `strict=` to `False` in `B905` diagnostic message ([#13656](https://github.com/astral-sh/ruff/pull/13656))
+- \[`flake8-todos`\] Only flag the word "TODO", not words starting with "todo" (`TD006`) ([#13640](https://github.com/astral-sh/ruff/pull/13640))
+- \[`pycodestyle`\] Fix whitespace-related false positives and false negatives inside type-parameter lists (`E231`, `E251`) ([#13704](https://github.com/astral-sh/ruff/pull/13704))
+- \[`flake8-simplify`\] Stabilize preview behavior for `SIM115` so that the rule can detect files
+    being opened from a wider range of standard-library functions ([#12959](https://github.com/astral-sh/ruff/pull/12959)).
+
+### CLI
+
+- Add explanation of fixable in `--statistics` command ([#13774](https://github.com/astral-sh/ruff/pull/13774))
+
+### Bug fixes
+
+- \[`pyflakes`\] Allow `ipytest` cell magic (`F401`) ([#13745](https://github.com/astral-sh/ruff/pull/13745))
+- \[`flake8-use-pathlib`\] Fix `PTH123` false positive when `open` is passed a file descriptor ([#13616](https://github.com/astral-sh/ruff/pull/13616))
+- \[`flake8-bandit`\] Detect patterns from multi line SQL statements (`S608`) ([#13574](https://github.com/astral-sh/ruff/pull/13574))
+- \[`flake8-pyi`\] - Fix dropped expressions in `PYI030` autofix ([#13727](https://github.com/astral-sh/ruff/pull/13727))
+
+## 0.7.1
+
+### Preview features
+
+- Fix `E221` and `E222` to flag missing or extra whitespace around `==` operator ([#13890](https://github.com/astral-sh/ruff/pull/13890))
+- Formatter: Alternate quotes for strings inside f-strings in preview ([#13860](https://github.com/astral-sh/ruff/pull/13860))
+- Formatter: Join implicit concatenated strings when they fit on a line ([#13663](https://github.com/astral-sh/ruff/pull/13663))
+- \[`pylint`\] Restrict `iteration-over-set` to only work on sets of literals (`PLC0208`) ([#13731](https://github.com/astral-sh/ruff/pull/13731))
+
+### Rule changes
+
+- \[`flake8-type-checking`\] Support auto-quoting when annotations contain quotes ([#11811](https://github.com/astral-sh/ruff/pull/11811))
+
+### Server
+
+- Avoid indexing the workspace for single-file mode ([#13770](https://github.com/astral-sh/ruff/pull/13770))
+
+### Bug fixes
+
+- Make `ARG002` compatible with `EM101` when raising `NotImplementedError` ([#13714](https://github.com/astral-sh/ruff/pull/13714))
+
+### Other changes
+
+- Introduce more Docker tags for Ruff (similar to uv) ([#13274](https://github.com/astral-sh/ruff/pull/13274))
+
+## 0.7.2
+
+### Preview features
+
+- Fix formatting of single with-item with trailing comment ([#14005](https://github.com/astral-sh/ruff/pull/14005))
+- \[`pyupgrade`\] Add PEP 646 `Unpack` conversion to `*` with fix (`UP044`) ([#13988](https://github.com/astral-sh/ruff/pull/13988))
+
+### Rule changes
+
+- Regenerate `known_stdlibs.rs` with stdlibs 2024.10.25 ([#13963](https://github.com/astral-sh/ruff/pull/13963))
+- \[`flake8-no-pep420`\] Skip namespace package enforcement for PEP 723 scripts (`INP001`) ([#13974](https://github.com/astral-sh/ruff/pull/13974))
+
+### Server
+
+- Fix server panic when undoing an edit ([#14010](https://github.com/astral-sh/ruff/pull/14010))
+
+### Bug fixes
+
+- Fix issues in discovering ruff in pip build environments ([#13881](https://github.com/astral-sh/ruff/pull/13881))
+- \[`flake8-type-checking`\] Fix false positive for `singledispatchmethod` (`TCH003`) ([#13941](https://github.com/astral-sh/ruff/pull/13941))
+- \[`flake8-type-checking`\] Treat return type of `singledispatch` as runtime-required (`TCH003`) ([#13957](https://github.com/astral-sh/ruff/pull/13957))
+
+### Documentation
+
+- \[`flake8-simplify`\] Include caveats of enabling `if-else-block-instead-of-if-exp` (`SIM108`) ([#14019](https://github.com/astral-sh/ruff/pull/14019))
+
+## 0.7.3
+
+### Preview features
+
+- Formatter: Disallow single-line implicit concatenated strings ([#13928](https://github.com/astral-sh/ruff/pull/13928))
+- \[`flake8-pyi`\] Include all Python file types for `PYI006` and `PYI066` ([#14059](https://github.com/astral-sh/ruff/pull/14059))
+- \[`flake8-simplify`\] Implement `split-of-static-string` (`SIM905`) ([#14008](https://github.com/astral-sh/ruff/pull/14008))
+- \[`refurb`\] Implement `subclass-builtin` (`FURB189`) ([#14105](https://github.com/astral-sh/ruff/pull/14105))
+- \[`ruff`\] Improve diagnostic messages and docs (`RUF031`, `RUF032`, `RUF034`) ([#14068](https://github.com/astral-sh/ruff/pull/14068))
+
+### Rule changes
+
+- Detect items that hash to same value in duplicate sets (`B033`, `PLC0208`) ([#14064](https://github.com/astral-sh/ruff/pull/14064))
+- \[`eradicate`\] Better detection of IntelliJ language injection comments (`ERA001`) ([#14094](https://github.com/astral-sh/ruff/pull/14094))
+- \[`flake8-pyi`\] Add autofix for `docstring-in-stub` (`PYI021`) ([#14150](https://github.com/astral-sh/ruff/pull/14150))
+- \[`flake8-pyi`\] Update `duplicate-literal-member` (`PYI062`) to always provide an autofix ([#14188](https://github.com/astral-sh/ruff/pull/14188))
+- \[`pyflakes`\] Detect items that hash to same value in duplicate dictionaries (`F601`) ([#14065](https://github.com/astral-sh/ruff/pull/14065))
+- \[`ruff`\] Fix false positive for decorators (`RUF028`) ([#14061](https://github.com/astral-sh/ruff/pull/14061))
+
+### Bug fixes
+
+- Avoid parsing joint rule codes as distinct codes in `# noqa` ([#12809](https://github.com/astral-sh/ruff/pull/12809))
+- \[`eradicate`\] ignore `# language=` in commented-out-code rule (ERA001) ([#14069](https://github.com/astral-sh/ruff/pull/14069))
+- \[`flake8-bugbear`\] - do not run `mutable-argument-default` on stubs (`B006`) ([#14058](https://github.com/astral-sh/ruff/pull/14058))
+- \[`flake8-builtins`\] Skip lambda expressions in `builtin-argument-shadowing (A002)` ([#14144](https://github.com/astral-sh/ruff/pull/14144))
+- \[`flake8-comprehension`\] Also remove trailing comma while fixing `C409` and `C419` ([#14097](https://github.com/astral-sh/ruff/pull/14097))
+- \[`flake8-simplify`\] Allow `open` without context manager in `return` statement (`SIM115`) ([#14066](https://github.com/astral-sh/ruff/pull/14066))
+- \[`pylint`\] Respect hash-equivalent literals in `iteration-over-set` (`PLC0208`) ([#14063](https://github.com/astral-sh/ruff/pull/14063))
+- \[`pylint`\] Update known dunder methods for Python 3.13 (`PLW3201`) ([#14146](https://github.com/astral-sh/ruff/pull/14146))
+- \[`pyupgrade`\] - ignore kwarg unpacking for `UP044` ([#14053](https://github.com/astral-sh/ruff/pull/14053))
+- \[`refurb`\] Parse more exotic decimal strings in `verbose-decimal-constructor` (`FURB157`) ([#14098](https://github.com/astral-sh/ruff/pull/14098))
+
+### Documentation
+
+- Add links to missing related options within rule documentations ([#13971](https://github.com/astral-sh/ruff/pull/13971))
+- Add rule short code to mkdocs tags to allow searching via rule codes ([#14040](https://github.com/astral-sh/ruff/pull/14040))
+
+## 0.7.4
+
+### Preview features
+
+- \[`flake8-datetimez`\] Detect usages of `datetime.max`/`datetime.min` (`DTZ901`) ([#14288](https://github.com/astral-sh/ruff/pull/14288))
+- \[`flake8-logging`\] Implement `root-logger-calls` (`LOG015`) ([#14302](https://github.com/astral-sh/ruff/pull/14302))
+- \[`flake8-no-pep420`\] Detect empty implicit namespace packages (`INP001`) ([#14236](https://github.com/astral-sh/ruff/pull/14236))
+- \[`flake8-pyi`\] Add "replace with `Self`" fix (`PYI019`) ([#14238](https://github.com/astral-sh/ruff/pull/14238))
+- \[`perflint`\] Implement quick-fix for `manual-list-comprehension` (`PERF401`) ([#13919](https://github.com/astral-sh/ruff/pull/13919))
+- \[`pylint`\] Implement `shallow-copy-environ` (`W1507`) ([#14241](https://github.com/astral-sh/ruff/pull/14241))
+- \[`ruff`\] Implement `none-not-at-end-of-union` (`RUF036`) ([#14314](https://github.com/astral-sh/ruff/pull/14314))
+- \[`ruff`\] Implementation `unsafe-markup-call` from `flake8-markupsafe` plugin (`RUF035`) ([#14224](https://github.com/astral-sh/ruff/pull/14224))
+- \[`ruff`\] Report problems for `attrs` dataclasses (`RUF008`, `RUF009`) ([#14327](https://github.com/astral-sh/ruff/pull/14327))
+
+### Rule changes
+
+- \[`flake8-boolean-trap`\] Exclude dunder methods that define operators (`FBT001`) ([#14203](https://github.com/astral-sh/ruff/pull/14203))
+- \[`flake8-pyi`\] Add "replace with `Self`" fix (`PYI034`) ([#14217](https://github.com/astral-sh/ruff/pull/14217))
+- \[`flake8-pyi`\] Always autofix `duplicate-union-members` (`PYI016`) ([#14270](https://github.com/astral-sh/ruff/pull/14270))
+- \[`flake8-pyi`\] Improve autofix for nested and mixed type unions for `unnecessary-type-union` (`PYI055`) ([#14272](https://github.com/astral-sh/ruff/pull/14272))
+- \[`flake8-pyi`\] Mark fix as unsafe when type annotation contains comments for `duplicate-literal-member` (`PYI062`) ([#14268](https://github.com/astral-sh/ruff/pull/14268))
+
+### Server
+
+- Use the current working directory to resolve settings from `ruff.configuration` ([#14352](https://github.com/astral-sh/ruff/pull/14352))
+
+### Bug fixes
+
+- Avoid conflicts between `PLC014` (`useless-import-alias`) and `I002` (`missing-required-import`) by considering `lint.isort.required-imports` for `PLC014` ([#14287](https://github.com/astral-sh/ruff/pull/14287))
+- \[`flake8-type-checking`\] Skip quoting annotation if it becomes invalid syntax (`TCH001`)
+- \[`flake8-pyi`\] Avoid using `typing.Self` in stub files pre-Python 3.11 (`PYI034`) ([#14230](https://github.com/astral-sh/ruff/pull/14230))
+- \[`flake8-pytest-style`\] Flag `pytest.raises` call with keyword argument `expected_exception` (`PT011`) ([#14298](https://github.com/astral-sh/ruff/pull/14298))
+- \[`flake8-simplify`\] Infer "unknown" truthiness for literal iterables whose items are all unpacks (`SIM222`) ([#14263](https://github.com/astral-sh/ruff/pull/14263))
+- \[`flake8-type-checking`\] Fix false positives for `typing.Annotated` (`TCH001`) ([#14311](https://github.com/astral-sh/ruff/pull/14311))
+- \[`pylint`\] Allow `await` at the top-level scope of a notebook (`PLE1142`) ([#14225](https://github.com/astral-sh/ruff/pull/14225))
+- \[`pylint`\] Fix miscellaneous issues in `await-outside-async` detection (`PLE1142`) ([#14218](https://github.com/astral-sh/ruff/pull/14218))
+- \[`pyupgrade`\] Avoid applying PEP 646 rewrites in invalid contexts (`UP044`) ([#14234](https://github.com/astral-sh/ruff/pull/14234))
+- \[`pyupgrade`\] Detect permutations in redundant open modes (`UP015`) ([#14255](https://github.com/astral-sh/ruff/pull/14255))
+- \[`refurb`\] Avoid triggering `hardcoded-string-charset` for reordered sets (`FURB156`) ([#14233](https://github.com/astral-sh/ruff/pull/14233))
+- \[`refurb`\] Further special cases added to `verbose-decimal-constructor` (`FURB157`) ([#14216](https://github.com/astral-sh/ruff/pull/14216))
+- \[`refurb`\] Use `UserString` instead of non-existent `UserStr` (`FURB189`) ([#14209](https://github.com/astral-sh/ruff/pull/14209))
+- \[`ruff`\] Avoid treating lowercase letters as `# noqa` codes (`RUF100`) ([#14229](https://github.com/astral-sh/ruff/pull/14229))
+- \[`ruff`\] Do not report when `Optional` has no type arguments (`RUF013`) ([#14181](https://github.com/astral-sh/ruff/pull/14181))
+
+### Documentation
+
+- Add "Notebook behavior" section for `F704`, `PLE1142` ([#14266](https://github.com/astral-sh/ruff/pull/14266))
+- Document comment policy around fix safety ([#14300](https://github.com/astral-sh/ruff/pull/14300))

changelogs/0.8.x.md

@@ -0,0 +1,304 @@
+# Changelog 0.8.x
+
+## 0.8.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.8.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+See also, the "Remapped rules" section which may result in disabled rules.
+
+- **Default to Python 3.9**
+
+    Ruff now defaults to Python 3.9 instead of 3.8 if no explicit Python version is configured using [`ruff.target-version`](https://docs.astral.sh/ruff/settings/#target-version) or [`project.requires-python`](https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#python-requires) ([#13896](https://github.com/astral-sh/ruff/pull/13896))
+
+- **Changed location of `pydoclint` diagnostics**
+
+    [`pydoclint`](https://docs.astral.sh/ruff/rules/#pydoclint-doc) diagnostics now point to the first-line of the problematic docstring. Previously, this was not the case.
+
+    If you've opted into these preview rules but have them suppressed using
+    [`noqa`](https://docs.astral.sh/ruff/linter/#error-suppression) comments in
+    some places, this change may mean that you need to move the `noqa` suppression
+    comments. Most users should be unaffected by this change.
+
+- **Use XDG (i.e. `~/.local/bin`) instead of the Cargo home directory in the standalone installer**
+
+    Previously, Ruff's installer used `$CARGO_HOME` or `~/.cargo/bin` for its target install directory. Now, Ruff will be installed into `$XDG_BIN_HOME`, `$XDG_DATA_HOME/../bin`, or `~/.local/bin` (in that order).
+
+    This change is only relevant to users of the standalone Ruff installer (using the shell or PowerShell script). If you installed Ruff using uv or pip, you should be unaffected.
+
+- **Changes to the line width calculation**
+
+    Ruff now uses a new version of the [unicode-width](https://github.com/unicode-rs/unicode-width) Rust crate to calculate the line width. In very rare cases, this may lead to lines containing Unicode characters being reformatted, or being considered too long when they were not before ([`E501`](https://docs.astral.sh/ruff/rules/line-too-long/)).
+
+### Removed Rules
+
+The following deprecated rules have been removed:
+
+- [`missing-type-self`](https://docs.astral.sh/ruff/rules/missing-type-self/) (`ANN101`)
+- [`missing-type-cls`](https://docs.astral.sh/ruff/rules/missing-type-cls/) (`ANN102`)
+- [`syntax-error`](https://docs.astral.sh/ruff/rules/syntax-error/) (`E999`)
+- [`pytest-missing-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-missing-fixture-name-underscore/) (`PT004`)
+- [`pytest-incorrect-fixture-name-underscore`](https://docs.astral.sh/ruff/rules/pytest-incorrect-fixture-name-underscore/) (`PT005`)
+- [`unpacked-list-comprehension`](https://docs.astral.sh/ruff/rules/unpacked-list-comprehension/) (`UP027`)
+
+### Remapped rules
+
+The following rules have been remapped to new rule codes:
+
+- [`flake8-type-checking`](https://docs.astral.sh/ruff/rules/#flake8-type-checking-tc): `TCH` to `TC`
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`builtin-import-shadowing`](https://docs.astral.sh/ruff/rules/builtin-import-shadowing/) (`A004`)
+- [`mutable-contextvar-default`](https://docs.astral.sh/ruff/rules/mutable-contextvar-default/) (`B039`)
+- [`fast-api-redundant-response-model`](https://docs.astral.sh/ruff/rules/fast-api-redundant-response-model/) (`FAST001`)
+- [`fast-api-non-annotated-dependency`](https://docs.astral.sh/ruff/rules/fast-api-non-annotated-dependency/) (`FAST002`)
+- [`dict-index-missing-items`](https://docs.astral.sh/ruff/rules/dict-index-missing-items/) (`PLC0206`)
+- [`pep484-style-positional-only-parameter`](https://docs.astral.sh/ruff/rules/pep484-style-positional-only-parameter/) (`PYI063`)
+- [`redundant-final-literal`](https://docs.astral.sh/ruff/rules/redundant-final-literal/) (`PYI064`)
+- [`bad-version-info-order`](https://docs.astral.sh/ruff/rules/bad-version-info-order/) (`PYI066`)
+- [`parenthesize-chained-operators`](https://docs.astral.sh/ruff/rules/parenthesize-chained-operators/) (`RUF021`)
+- [`unsorted-dunder-all`](https://docs.astral.sh/ruff/rules/unsorted-dunder-all/) (`RUF022`)
+- [`unsorted-dunder-slots`](https://docs.astral.sh/ruff/rules/unsorted-dunder-slots/) (`RUF023`)
+- [`assert-with-print-message`](https://docs.astral.sh/ruff/rules/assert-with-print-message/) (`RUF030`)
+- [`unnecessary-default-type-args`](https://docs.astral.sh/ruff/rules/unnecessary-default-type-args/) (`UP043`)
+
+The following behaviors have been stabilized:
+
+- [`ambiguous-variable-name`](https://docs.astral.sh/ruff/rules/ambiguous-variable-name/) (`E741`): Violations in stub files are now ignored. Stub authors typically don't control variable names.
+- [`printf-string-formatting`](https://docs.astral.sh/ruff/rules/printf-string-formatting/) (`UP031`): Report all `printf`-like usages even if no autofix is available
+
+The following fixes have been stabilized:
+
+- [`zip-instead-of-pairwise`](https://docs.astral.sh/ruff/rules/zip-instead-of-pairwise/) (`RUF007`)
+
+### Preview features
+
+- \[`flake8-datetimez`\] Exempt `min.time()` and `max.time()` (`DTZ901`) ([#14394](https://github.com/astral-sh/ruff/pull/14394))
+- \[`flake8-pie`\] Mark fix as unsafe if the following statement is a string literal (`PIE790`) ([#14393](https://github.com/astral-sh/ruff/pull/14393))
+- \[`flake8-pyi`\] New rule `redundant-none-literal` (`PYI061`) ([#14316](https://github.com/astral-sh/ruff/pull/14316))
+- \[`flake8-pyi`\] Add autofix for `redundant-numeric-union` (`PYI041`) ([#14273](https://github.com/astral-sh/ruff/pull/14273))
+- \[`ruff`\] New rule `map-int-version-parsing` (`RUF048`) ([#14373](https://github.com/astral-sh/ruff/pull/14373))
+- \[`ruff`\] New rule `redundant-bool-literal` (`RUF038`) ([#14319](https://github.com/astral-sh/ruff/pull/14319))
+- \[`ruff`\] New rule `unraw-re-pattern` (`RUF039`) ([#14446](https://github.com/astral-sh/ruff/pull/14446))
+- \[`pycodestyle`\] Exempt `pytest.importorskip()` calls (`E402`) ([#14474](https://github.com/astral-sh/ruff/pull/14474))
+- \[`pylint`\] Autofix suggests using sets when possible (`PLR1714`) ([#14372](https://github.com/astral-sh/ruff/pull/14372))
+
+### Rule changes
+
+- [`invalid-pyproject-toml`](https://docs.astral.sh/ruff/rules/invalid-pyproject-toml/) (`RUF200`): Updated to reflect the provisionally accepted [PEP 639](https://peps.python.org/pep-0639/).
+- \[`flake8-pyi`\] Avoid panic in unfixable case (`PYI041`) ([#14402](https://github.com/astral-sh/ruff/pull/14402))
+- \[`flake8-type-checking`\] Correctly handle quotes in subscript expression when generating an autofix ([#14371](https://github.com/astral-sh/ruff/pull/14371))
+- \[`pylint`\] Suggest correct autofix for `__contains__` (`PLC2801`) ([#14424](https://github.com/astral-sh/ruff/pull/14424))
+
+### Configuration
+
+- Ruff now emits a warning instead of an error when a configuration [`ignore`](https://docs.astral.sh/ruff/settings/#lint_ignore)s a rule that has been removed ([#14435](https://github.com/astral-sh/ruff/pull/14435))
+- Ruff now validates that `lint.flake8-import-conventions.aliases` only uses valid module names and aliases ([#14477](https://github.com/astral-sh/ruff/pull/14477))
+
+## 0.8.1
+
+### Preview features
+
+- Formatter: Avoid invalid syntax for format-spec with quotes for all Python versions ([#14625](https://github.com/astral-sh/ruff/pull/14625))
+- Formatter: Consider quotes inside format-specs when choosing the quotes for an f-string ([#14493](https://github.com/astral-sh/ruff/pull/14493))
+- Formatter: Do not consider f-strings with escaped newlines as multiline ([#14624](https://github.com/astral-sh/ruff/pull/14624))
+- Formatter: Fix f-string formatting in assignment statement ([#14454](https://github.com/astral-sh/ruff/pull/14454))
+- Formatter: Fix unnecessary space around power operator (`**`) in overlong f-string expressions ([#14489](https://github.com/astral-sh/ruff/pull/14489))
+- \[`airflow`\] Avoid implicit `schedule` argument to `DAG` and `@dag` (`AIR301`) ([#14581](https://github.com/astral-sh/ruff/pull/14581))
+- \[`flake8-builtins`\] Exempt private built-in modules (`A005`) ([#14505](https://github.com/astral-sh/ruff/pull/14505))
+- \[`flake8-pytest-style`\] Fix `pytest.mark.parametrize` rules to check calls instead of decorators ([#14515](https://github.com/astral-sh/ruff/pull/14515))
+- \[`flake8-type-checking`\] Implement `runtime-cast-value` (`TC006`) ([#14511](https://github.com/astral-sh/ruff/pull/14511))
+- \[`flake8-type-checking`\] Implement `unquoted-type-alias` (`TC007`) and `quoted-type-alias` (`TC008`) ([#12927](https://github.com/astral-sh/ruff/pull/12927))
+- \[`flake8-use-pathlib`\] Recommend `Path.iterdir()` over `os.listdir()` (`PTH208`) ([#14509](https://github.com/astral-sh/ruff/pull/14509))
+- \[`pylint`\] Extend `invalid-envvar-default` to detect `os.environ.get` (`PLW1508`) ([#14512](https://github.com/astral-sh/ruff/pull/14512))
+- \[`pylint`\] Implement `len-test` (`PLC1802`) ([#14309](https://github.com/astral-sh/ruff/pull/14309))
+- \[`refurb`\] Fix bug where methods defined using lambdas were flagged by `FURB118` ([#14639](https://github.com/astral-sh/ruff/pull/14639))
+- \[`ruff`\] Auto-add `r` prefix when string has no backslashes for `unraw-re-pattern` (`RUF039`) ([#14536](https://github.com/astral-sh/ruff/pull/14536))
+- \[`ruff`\] Implement `invalid-assert-message-literal-argument` (`RUF040`) ([#14488](https://github.com/astral-sh/ruff/pull/14488))
+- \[`ruff`\] Implement `unnecessary-nested-literal` (`RUF041`) ([#14323](https://github.com/astral-sh/ruff/pull/14323))
+- \[`ruff`\] Implement `unnecessary-regular-expression` (`RUF055`) ([#14659](https://github.com/astral-sh/ruff/pull/14659))
+
+### Rule changes
+
+- Ignore more rules for stub files ([#14541](https://github.com/astral-sh/ruff/pull/14541))
+- \[`pep8-naming`\] Eliminate false positives for single-letter names (`N811`, `N814`) ([#14584](https://github.com/astral-sh/ruff/pull/14584))
+- \[`pyflakes`\] Avoid false positives in `@no_type_check` contexts (`F821`, `F722`) ([#14615](https://github.com/astral-sh/ruff/pull/14615))
+- \[`ruff`\] Detect redirected-noqa in file-level comments (`RUF101`) ([#14635](https://github.com/astral-sh/ruff/pull/14635))
+- \[`ruff`\] Mark fixes for `unsorted-dunder-all` and `unsorted-dunder-slots` as unsafe when there are complex comments in the sequence (`RUF022`, `RUF023`) ([#14560](https://github.com/astral-sh/ruff/pull/14560))
+
+### Bug fixes
+
+- Avoid fixing code to `None | None` for `redundant-none-literal` (`PYI061`) and `never-union` (`RUF020`) ([#14583](https://github.com/astral-sh/ruff/pull/14583), [#14589](https://github.com/astral-sh/ruff/pull/14589))
+- \[`flake8-bugbear`\] Fix `mutable-contextvar-default` to resolve annotated function calls properly (`B039`) ([#14532](https://github.com/astral-sh/ruff/pull/14532))
+- \[`flake8-pyi`, `ruff`\] Fix traversal of nested literals and unions (`PYI016`, `PYI051`, `PYI055`, `PYI062`, `RUF041`) ([#14641](https://github.com/astral-sh/ruff/pull/14641))
+- \[`flake8-pyi`\] Avoid rewriting invalid type expressions in `unnecessary-type-union` (`PYI055`) ([#14660](https://github.com/astral-sh/ruff/pull/14660))
+- \[`flake8-type-checking`\] Avoid syntax errors and type checking problem for quoted annotations autofix (`TC003`, `TC006`) ([#14634](https://github.com/astral-sh/ruff/pull/14634))
+- \[`pylint`\] Do not wrap function calls in parentheses in the fix for unnecessary-dunder-call (`PLC2801`) ([#14601](https://github.com/astral-sh/ruff/pull/14601))
+- \[`ruff`\] Handle `attrs`'s `auto_attribs` correctly (`RUF009`) ([#14520](https://github.com/astral-sh/ruff/pull/14520))
+
+## 0.8.2
+
+### Preview features
+
+- \[`airflow`\] Avoid deprecated values (`AIR302`) ([#14582](https://github.com/astral-sh/ruff/pull/14582))
+- \[`airflow`\] Extend removed names for `AIR302` ([#14734](https://github.com/astral-sh/ruff/pull/14734))
+- \[`ruff`\] Extend `unnecessary-regular-expression` to non-literal strings (`RUF055`) ([#14679](https://github.com/astral-sh/ruff/pull/14679))
+- \[`ruff`\] Implement `used-dummy-variable` (`RUF052`) ([#14611](https://github.com/astral-sh/ruff/pull/14611))
+- \[`ruff`\] Implement `unnecessary-cast-to-int` (`RUF046`) ([#14697](https://github.com/astral-sh/ruff/pull/14697))
+
+### Rule changes
+
+- \[`airflow`\] Check `AIR001` from builtin or providers `operators` module ([#14631](https://github.com/astral-sh/ruff/pull/14631))
+- \[`flake8-pytest-style`\] Remove `@` in `pytest.mark.parametrize` rule messages ([#14770](https://github.com/astral-sh/ruff/pull/14770))
+- \[`pandas-vet`\] Skip rules if the `panda` module hasn't been seen ([#14671](https://github.com/astral-sh/ruff/pull/14671))
+- \[`pylint`\] Fix false negatives for `ascii` and `sorted` in `len-as-condition` (`PLC1802`) ([#14692](https://github.com/astral-sh/ruff/pull/14692))
+- \[`refurb`\] Guard `hashlib` imports and mark `hashlib-digest-hex` fix as safe (`FURB181`) ([#14694](https://github.com/astral-sh/ruff/pull/14694))
+
+### Configuration
+
+- \[`flake8-import-conventions`\] Improve syntax check for aliases supplied in configuration for `unconventional-import-alias` (`ICN001`) ([#14745](https://github.com/astral-sh/ruff/pull/14745))
+
+### Bug fixes
+
+- Revert: [pyflakes] Avoid false positives in `@no_type_check` contexts (`F821`, `F722`) (#14615) ([#14726](https://github.com/astral-sh/ruff/pull/14726))
+- \[`pep8-naming`\] Avoid false positive for `class Bar(type(foo))` (`N804`) ([#14683](https://github.com/astral-sh/ruff/pull/14683))
+- \[`pycodestyle`\] Handle f-strings properly for `invalid-escape-sequence` (`W605`) ([#14748](https://github.com/astral-sh/ruff/pull/14748))
+- \[`pylint`\] Ignore `@overload` in `PLR0904` ([#14730](https://github.com/astral-sh/ruff/pull/14730))
+- \[`refurb`\] Handle non-finite decimals in `verbose-decimal-constructor` (`FURB157`) ([#14596](https://github.com/astral-sh/ruff/pull/14596))
+- \[`ruff`\] Avoid emitting `assignment-in-assert` when all references to the assigned variable are themselves inside `assert`s (`RUF018`) ([#14661](https://github.com/astral-sh/ruff/pull/14661))
+
+### Documentation
+
+- Improve docs for `flake8-use-pathlib` rules ([#14741](https://github.com/astral-sh/ruff/pull/14741))
+- Improve error messages and docs for `flake8-comprehensions` rules ([#14729](https://github.com/astral-sh/ruff/pull/14729))
+- \[`flake8-type-checking`\] Expands `TC006` docs to better explain itself ([#14749](https://github.com/astral-sh/ruff/pull/14749))
+
+## 0.8.3
+
+### Preview features
+
+- Fix fstring formatting removing overlong implicit concatenated string in expression part ([#14811](https://github.com/astral-sh/ruff/pull/14811))
+- \[`airflow`\] Add fix to remove deprecated keyword arguments (`AIR302`) ([#14887](https://github.com/astral-sh/ruff/pull/14887))
+- \[`airflow`\]: Extend rule to include deprecated names for Airflow 3.0 (`AIR302`) ([#14765](https://github.com/astral-sh/ruff/pull/14765) and [#14804](https://github.com/astral-sh/ruff/pull/14804))
+- \[`flake8-bugbear`\] Improve error messages for `except*` (`B025`, `B029`, `B030`, `B904`) ([#14815](https://github.com/astral-sh/ruff/pull/14815))
+- \[`flake8-bugbear`\] `itertools.batched()` without explicit `strict` (`B911`) ([#14408](https://github.com/astral-sh/ruff/pull/14408))
+- \[`flake8-use-pathlib`\] Dotless suffix passed to `Path.with_suffix()` (`PTH210`) ([#14779](https://github.com/astral-sh/ruff/pull/14779))
+- \[`pylint`\] Include parentheses and multiple comparators in check for `boolean-chained-comparison` (`PLR1716`) ([#14781](https://github.com/astral-sh/ruff/pull/14781))
+- \[`ruff`\] Do not simplify `round()` calls (`RUF046`) ([#14832](https://github.com/astral-sh/ruff/pull/14832))
+- \[`ruff`\] Don't emit `used-dummy-variable` on function parameters (`RUF052`) ([#14818](https://github.com/astral-sh/ruff/pull/14818))
+- \[`ruff`\] Implement `if-key-in-dict-del` (`RUF051`) ([#14553](https://github.com/astral-sh/ruff/pull/14553))
+- \[`ruff`\] Mark autofix for `RUF052` as always unsafe ([#14824](https://github.com/astral-sh/ruff/pull/14824))
+- \[`ruff`\] Teach autofix for `used-dummy-variable` about TypeVars etc. (`RUF052`) ([#14819](https://github.com/astral-sh/ruff/pull/14819))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Offer unsafe autofix for `no-explicit-stacklevel` (`B028`) ([#14829](https://github.com/astral-sh/ruff/pull/14829))
+- \[`flake8-pyi`\] Skip all type definitions in `string-or-bytes-too-long` (`PYI053`) ([#14797](https://github.com/astral-sh/ruff/pull/14797))
+- \[`pyupgrade`\] Do not report when a UTF-8 comment is followed by a non-UTF-8 one (`UP009`) ([#14728](https://github.com/astral-sh/ruff/pull/14728))
+- \[`pyupgrade`\] Mark fixes for `convert-typed-dict-functional-to-class` and `convert-named-tuple-functional-to-class` as unsafe if they will remove comments (`UP013`, `UP014`) ([#14842](https://github.com/astral-sh/ruff/pull/14842))
+
+### Bug fixes
+
+- Raise syntax error for mixing `except` and `except*` ([#14895](https://github.com/astral-sh/ruff/pull/14895))
+- \[`flake8-bugbear`\] Fix `B028` to allow `stacklevel` to be explicitly assigned as a positional argument ([#14868](https://github.com/astral-sh/ruff/pull/14868))
+- \[`flake8-bugbear`\] Skip `B028` if `warnings.warn` is called with `*args` or `**kwargs` ([#14870](https://github.com/astral-sh/ruff/pull/14870))
+- \[`flake8-comprehensions`\] Skip iterables with named expressions in `unnecessary-map` (`C417`) ([#14827](https://github.com/astral-sh/ruff/pull/14827))
+- \[`flake8-pyi`\] Also remove `self` and `cls`'s annotation (`PYI034`) ([#14801](https://github.com/astral-sh/ruff/pull/14801))
+- \[`flake8-pytest-style`\] Fix `pytest-parametrize-names-wrong-type` (`PT006`) to edit both `argnames` and `argvalues` if both of them are single-element tuples/lists ([#14699](https://github.com/astral-sh/ruff/pull/14699))
+- \[`perflint`\] Improve autofix for `PERF401` ([#14369](https://github.com/astral-sh/ruff/pull/14369))
+- \[`pylint`\] Fix `PLW1508` false positive for default string created via a mult operation ([#14841](https://github.com/astral-sh/ruff/pull/14841))
+
+## 0.8.4
+
+### Preview features
+
+- \[`airflow`\] Extend `AIR302` with additional functions and classes ([#15015](https://github.com/astral-sh/ruff/pull/15015))
+- \[`airflow`\] Implement `moved-to-provider-in-3` for modules that has been moved to Airflow providers (`AIR303`) ([#14764](https://github.com/astral-sh/ruff/pull/14764))
+- \[`flake8-use-pathlib`\] Extend check for invalid path suffix to include the case `"."` (`PTH210`) ([#14902](https://github.com/astral-sh/ruff/pull/14902))
+- \[`perflint`\] Fix panic in `PERF401` when list variable is after the `for` loop ([#14971](https://github.com/astral-sh/ruff/pull/14971))
+- \[`perflint`\] Simplify finding the loop target in `PERF401` ([#15025](https://github.com/astral-sh/ruff/pull/15025))
+- \[`pylint`\] Preserve original value format (`PLR6104`) ([#14978](https://github.com/astral-sh/ruff/pull/14978))
+- \[`ruff`\] Avoid false positives for `RUF027` for typing context bindings ([#15037](https://github.com/astral-sh/ruff/pull/15037))
+- \[`ruff`\] Check for ambiguous pattern passed to `pytest.raises()` (`RUF043`) ([#14966](https://github.com/astral-sh/ruff/pull/14966))
+
+### Rule changes
+
+- \[`flake8-bandit`\] Check `S105` for annotated assignment ([#15059](https://github.com/astral-sh/ruff/pull/15059))
+- \[`flake8-pyi`\] More autofixes for `redundant-none-literal` (`PYI061`) ([#14872](https://github.com/astral-sh/ruff/pull/14872))
+- \[`pydocstyle`\] Skip leading whitespace for `D403` ([#14963](https://github.com/astral-sh/ruff/pull/14963))
+- \[`ruff`\] Skip `SQLModel` base classes for `mutable-class-default` (`RUF012`) ([#14949](https://github.com/astral-sh/ruff/pull/14949))
+
+### Bug
+
+- \[`perflint`\] Parenthesize walrus expressions in autofix for `manual-list-comprehension` (`PERF401`) ([#15050](https://github.com/astral-sh/ruff/pull/15050))
+
+### Server
+
+- Check diagnostic refresh support from client capability which enables dynamic configuration for various editors ([#15014](https://github.com/astral-sh/ruff/pull/15014))
+
+## 0.8.5
+
+### Preview features
+
+- \[`airflow`\] Extend names moved from core to provider (`AIR303`) ([#15145](https://github.com/astral-sh/ruff/pull/15145), [#15159](https://github.com/astral-sh/ruff/pull/15159), [#15196](https://github.com/astral-sh/ruff/pull/15196), [#15216](https://github.com/astral-sh/ruff/pull/15216))
+- \[`airflow`\] Extend rule to check class attributes, methods, arguments (`AIR302`) ([#15054](https://github.com/astral-sh/ruff/pull/15054), [#15083](https://github.com/astral-sh/ruff/pull/15083))
+- \[`fastapi`\] Update `FAST002` to check keyword-only arguments ([#15119](https://github.com/astral-sh/ruff/pull/15119))
+- \[`flake8-type-checking`\] Disable `TC006` and `TC007` in stub files ([#15179](https://github.com/astral-sh/ruff/pull/15179))
+- \[`pylint`\] Detect nested methods correctly (`PLW1641`) ([#15032](https://github.com/astral-sh/ruff/pull/15032))
+- \[`ruff`\] Detect more strict-integer expressions (`RUF046`) ([#14833](https://github.com/astral-sh/ruff/pull/14833))
+- \[`ruff`\] Implement `falsy-dict-get-fallback` (`RUF056`) ([#15160](https://github.com/astral-sh/ruff/pull/15160))
+- \[`ruff`\] Implement `unnecessary-round` (`RUF057`) ([#14828](https://github.com/astral-sh/ruff/pull/14828))
+
+### Rule changes
+
+- Visit PEP 764 inline `TypedDict` keys as non-type-expressions ([#15073](https://github.com/astral-sh/ruff/pull/15073))
+- \[`flake8-comprehensions`\] Skip `C416` if comprehension contains unpacking ([#14909](https://github.com/astral-sh/ruff/pull/14909))
+- \[`flake8-pie`\] Allow `cast(SomeType, ...)` (`PIE796`) ([#15141](https://github.com/astral-sh/ruff/pull/15141))
+- \[`flake8-simplify`\] More precise inference for dictionaries (`SIM300`) ([#15164](https://github.com/astral-sh/ruff/pull/15164))
+- \[`flake8-use-pathlib`\] Catch redundant joins in `PTH201` and avoid syntax errors ([#15177](https://github.com/astral-sh/ruff/pull/15177))
+- \[`pycodestyle`\] Preserve original value format (`E731`) ([#15097](https://github.com/astral-sh/ruff/pull/15097))
+- \[`pydocstyle`\] Split on first whitespace character (`D403`) ([#15082](https://github.com/astral-sh/ruff/pull/15082))
+- \[`pyupgrade`\] Add all PEP-585 names to `UP006` rule ([#5454](https://github.com/astral-sh/ruff/pull/5454))
+
+### Configuration
+
+- \[`flake8-type-checking`\] Improve flexibility of `runtime-evaluated-decorators` ([#15204](https://github.com/astral-sh/ruff/pull/15204))
+- \[`pydocstyle`\] Add setting to ignore missing documentation for `*args` and `**kwargs` parameters (`D417`) ([#15210](https://github.com/astral-sh/ruff/pull/15210))
+- \[`ruff`\] Add an allowlist for `unsafe-markup-use` (`RUF035`) ([#15076](https://github.com/astral-sh/ruff/pull/15076))
+
+### Bug fixes
+
+- Fix type subscript on older python versions ([#15090](https://github.com/astral-sh/ruff/pull/15090))
+- Use `TypeChecker` for detecting `fastapi` routes ([#15093](https://github.com/astral-sh/ruff/pull/15093))
+- \[`pycodestyle`\] Avoid false positives and negatives related to type parameter default syntax (`E225`, `E251`) ([#15214](https://github.com/astral-sh/ruff/pull/15214))
+
+### Documentation
+
+- Fix incorrect doc in `shebang-not-executable` (`EXE001`) and add git+windows solution to executable bit ([#15208](https://github.com/astral-sh/ruff/pull/15208))
+- Rename rules currently not conforming to naming convention ([#15102](https://github.com/astral-sh/ruff/pull/15102))
+
+## 0.8.6
+
+### Preview features
+
+- \[`format`\]: Preserve multiline implicit concatenated strings in docstring positions ([#15126](https://github.com/astral-sh/ruff/pull/15126))
+- \[`ruff`\] Add rule to detect empty literal in deque call (`RUF025`) ([#15104](https://github.com/astral-sh/ruff/pull/15104))
+- \[`ruff`\] Avoid reporting when `ndigits` is possibly negative (`RUF057`) ([#15234](https://github.com/astral-sh/ruff/pull/15234))
+
+### Rule changes
+
+- \[`flake8-todos`\] remove issue code length restriction (`TD003`) ([#15175](https://github.com/astral-sh/ruff/pull/15175))
+- \[`pyflakes`\] Ignore errors in `@no_type_check` string annotations (`F722`, `F821`) ([#15215](https://github.com/astral-sh/ruff/pull/15215))
+
+### CLI
+
+- Show errors for attempted fixes only when passed `--verbose` ([#15237](https://github.com/astral-sh/ruff/pull/15237))
+
+### Bug fixes
+
+- \[`ruff`\] Avoid syntax error when removing int over multiple lines (`RUF046`) ([#15230](https://github.com/astral-sh/ruff/pull/15230))
+- \[`pyupgrade`\] Revert "Add all PEP-585 names to `UP006` rule" ([#15250](https://github.com/astral-sh/ruff/pull/15250))

changelogs/0.9.x.md

@@ -0,0 +1,475 @@
+# Changelog 0.9.x
+
+## 0.9.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.9.0) for a migration guide and overview of the changes!
+
+### Breaking changes
+
+Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the formatter section for a detailed list of changes.
+
+This release doesn’t remove or remap any existing stable rules.
+
+### Stabilization
+
+The following rules have been stabilized and are no longer in preview:
+
+- [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) (`A005`).
+    This rule has also been renamed: previously, it was called `builtin-module-shadowing`.
+- [`builtin-lambda-argument-shadowing`](https://docs.astral.sh/ruff/rules/builtin-lambda-argument-shadowing/) (`A006`)
+- [`slice-to-remove-prefix-or-suffix`](https://docs.astral.sh/ruff/rules/slice-to-remove-prefix-or-suffix/) (`FURB188`)
+- [`boolean-chained-comparison`](https://docs.astral.sh/ruff/rules/boolean-chained-comparison/) (`PLR1716`)
+- [`decimal-from-float-literal`](https://docs.astral.sh/ruff/rules/decimal-from-float-literal/) (`RUF032`)
+- [`post-init-default`](https://docs.astral.sh/ruff/rules/post-init-default/) (`RUF033`)
+- [`useless-if-else`](https://docs.astral.sh/ruff/rules/useless-if-else/) (`RUF034`)
+
+The following behaviors have been stabilized:
+
+- [`pytest-parametrize-names-wrong-type`](https://docs.astral.sh/ruff/rules/pytest-parametrize-names-wrong-type/) (`PT006`): Detect [`pytest.parametrize`](https://docs.pytest.org/en/7.1.x/how-to/parametrize.html#parametrize) calls outside decorators and calls with keyword arguments.
+- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`): Ignore [`pytest.importorskip`](https://docs.pytest.org/en/7.1.x/reference/reference.html#pytest-importorskip) calls between import statements.
+- [`mutable-dataclass-default`](https://docs.astral.sh/ruff/rules/mutable-dataclass-default/) (`RUF008`) and [`function-call-in-dataclass-default-argument`](https://docs.astral.sh/ruff/rules/function-call-in-dataclass-default-argument/) (`RUF009`): Add support for [`attrs`](https://www.attrs.org/en/stable/).
+- [`bad-version-info-comparison`](https://docs.astral.sh/ruff/rules/bad-version-info-comparison/) (`PYI006`): Extend the rule to check non-stub files.
+
+The following fixes or improvements to fixes have been stabilized:
+
+- [`redundant-numeric-union`](https://docs.astral.sh/ruff/rules/redundant-numeric-union/) (`PYI041`)
+- [`duplicate-union-members`](https://docs.astral.sh/ruff/rules/duplicate-union-member/) (`PYI016`)
+
+### Formatter
+
+This release introduces the new 2025 stable style ([#13371](https://github.com/astral-sh/ruff/issues/13371)), stabilizing the following changes:
+
+- Format expressions in f-string elements ([#7594](https://github.com/astral-sh/ruff/issues/7594))
+- Alternate quotes for strings inside f-strings ([#13860](https://github.com/astral-sh/ruff/pull/13860))
+- Preserve the casing of hex codes in f-string debug expressions ([#14766](https://github.com/astral-sh/ruff/issues/14766))
+- Choose the quote style for each string literal in an implicitly concatenated f-string rather than for the entire string ([#13539](https://github.com/astral-sh/ruff/pull/13539))
+- Automatically join an implicitly concatenated string into a single string literal if it fits on a single line ([#9457](https://github.com/astral-sh/ruff/issues/9457))
+- Remove the [`ISC001`](https://docs.astral.sh/ruff/rules/single-line-implicit-string-concatenation/) incompatibility warning ([#15123](https://github.com/astral-sh/ruff/pull/15123))
+- Prefer parenthesizing the `assert` message over breaking the assertion expression ([#9457](https://github.com/astral-sh/ruff/issues/9457))
+- Automatically parenthesize over-long `if` guards in `match` `case` clauses ([#13513](https://github.com/astral-sh/ruff/pull/13513))
+- More consistent formatting for `match` `case` patterns ([#6933](https://github.com/astral-sh/ruff/issues/6933))
+- Avoid unnecessary parentheses around return type annotations ([#13381](https://github.com/astral-sh/ruff/pull/13381))
+- Keep the opening parentheses on the same line as the `if` keyword for comprehensions where the condition has a leading comment ([#12282](https://github.com/astral-sh/ruff/pull/12282))
+- More consistent formatting for `with` statements with a single context manager for Python 3.8 or older ([#10276](https://github.com/astral-sh/ruff/pull/10276))
+- Correctly calculate the line-width for code blocks in docstrings when using `max-doc-code-line-length = "dynamic"` ([#13523](https://github.com/astral-sh/ruff/pull/13523))
+
+### Preview features
+
+- \[`flake8-bugbear`\] Implement `class-as-data-structure` (`B903`) ([#9601](https://github.com/astral-sh/ruff/pull/9601))
+- \[`flake8-type-checking`\] Apply `quoted-type-alias` more eagerly in `TYPE_CHECKING` blocks and ignore it in stubs (`TC008`) ([#15180](https://github.com/astral-sh/ruff/pull/15180))
+- \[`pylint`\] Ignore `eq-without-hash` in stub files (`PLW1641`) ([#15310](https://github.com/astral-sh/ruff/pull/15310))
+- \[`pyupgrade`\] Split `UP007` into two individual rules: `UP007` for `Union` and `UP045` for `Optional` (`UP007`, `UP045`) ([#15313](https://github.com/astral-sh/ruff/pull/15313))
+- \[`ruff`\] New rule that detects classes that are both an enum and a `dataclass` (`RUF049`) ([#15299](https://github.com/astral-sh/ruff/pull/15299))
+- \[`ruff`\] Recode `RUF025` to `RUF037` (`RUF037`) ([#15258](https://github.com/astral-sh/ruff/pull/15258))
+
+### Rule changes
+
+- \[`flake8-builtins`\] Ignore [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) in stub files(`A005`) ([#15350](https://github.com/astral-sh/ruff/pull/15350))
+- \[`flake8-return`\] Add support for functions returning `typing.Never` (`RET503`) ([#15298](https://github.com/astral-sh/ruff/pull/15298))
+
+### Server
+
+- Improve the observability by removing the need for the ["trace" value](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#traceValue) to turn on or off logging. The server logging is solely controlled using the [`logLevel` server setting](https://docs.astral.sh/ruff/editors/settings/#loglevel)
+    which defaults to `info`. This addresses the issue where users were notified about an error and told to consult the log, but it didn’t contain any messages. ([#15232](https://github.com/astral-sh/ruff/pull/15232))
+- Ignore diagnostics from other sources for code action requests ([#15373](https://github.com/astral-sh/ruff/pull/15373))
+
+### CLI
+
+- Improve the error message for `--config key=value` when the `key` is for a table and it’s a simple `value`
+
+### Bug fixes
+
+- \[`eradicate`\] Ignore metadata blocks directly followed by normal blocks (`ERA001`) ([#15330](https://github.com/astral-sh/ruff/pull/15330))
+- \[`flake8-django`\] Recognize other magic methods (`DJ012`) ([#15365](https://github.com/astral-sh/ruff/pull/15365))
+- \[`pycodestyle`\] Avoid false positives related to type aliases (`E252`) ([#15356](https://github.com/astral-sh/ruff/pull/15356))
+- \[`pydocstyle`\] Avoid treating newline-separated sections as sub-sections (`D405`) ([#15311](https://github.com/astral-sh/ruff/pull/15311))
+- \[`pyflakes`\] Remove call when removing final argument from `format` (`F523`) ([#15309](https://github.com/astral-sh/ruff/pull/15309))
+- \[`refurb`\] Mark fix as unsafe when the right-hand side is a string (`FURB171`) ([#15273](https://github.com/astral-sh/ruff/pull/15273))
+- \[`ruff`\] Treat `)` as a regex metacharacter (`RUF043`, `RUF055`) ([#15318](https://github.com/astral-sh/ruff/pull/15318))
+- \[`ruff`\] Parenthesize the `int`-call argument when removing the `int` call would change semantics (`RUF046`) ([#15277](https://github.com/astral-sh/ruff/pull/15277))
+
+## 0.9.1
+
+### Preview features
+
+- \[`pycodestyle`\] Run `too-many-newlines-at-end-of-file` on each cell in notebooks (`W391`) ([#15308](https://github.com/astral-sh/ruff/pull/15308))
+- \[`ruff`\] Omit diagnostic for shadowed private function parameters in `used-dummy-variable` (`RUF052`) ([#15376](https://github.com/astral-sh/ruff/pull/15376))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Improve `assert-raises-exception` message (`B017`) ([#15389](https://github.com/astral-sh/ruff/pull/15389))
+
+### Formatter
+
+- Preserve trailing end-of line comments for the last string literal in implicitly concatenated strings ([#15378](https://github.com/astral-sh/ruff/pull/15378))
+
+### Server
+
+- Fix a bug where the server and client notebooks were out of sync after reordering cells ([#15398](https://github.com/astral-sh/ruff/pull/15398))
+
+### Bug fixes
+
+- \[`flake8-pie`\] Correctly remove wrapping parentheses (`PIE800`) ([#15394](https://github.com/astral-sh/ruff/pull/15394))
+- \[`pyupgrade`\] Handle comments and multiline expressions correctly (`UP037`) ([#15337](https://github.com/astral-sh/ruff/pull/15337))
+
+## 0.9.2
+
+### Preview features
+
+- \[`airflow`\] Fix typo "security_managr" to "security_manager" (`AIR303`) ([#15463](https://github.com/astral-sh/ruff/pull/15463))
+- \[`airflow`\] extend and fix AIR302 rules ([#15525](https://github.com/astral-sh/ruff/pull/15525))
+- \[`fastapi`\] Handle parameters with `Depends` correctly (`FAST003`) ([#15364](https://github.com/astral-sh/ruff/pull/15364))
+- \[`flake8-pytest-style`\] Implement pytest.warns diagnostics (`PT029`, `PT030`, `PT031`) ([#15444](https://github.com/astral-sh/ruff/pull/15444))
+- \[`flake8-pytest-style`\] Test function parameters with default arguments (`PT028`) ([#15449](https://github.com/astral-sh/ruff/pull/15449))
+- \[`flake8-type-checking`\] Avoid false positives for `|` in `TC008` ([#15201](https://github.com/astral-sh/ruff/pull/15201))
+
+### Rule changes
+
+- \[`flake8-todos`\] Allow VSCode GitHub PR extension style links in `missing-todo-link` (`TD003`) ([#15519](https://github.com/astral-sh/ruff/pull/15519))
+- \[`pyflakes`\] Show syntax error message for `F722` ([#15523](https://github.com/astral-sh/ruff/pull/15523))
+
+### Formatter
+
+- Fix curly bracket spacing around f-string expressions containing curly braces ([#15471](https://github.com/astral-sh/ruff/pull/15471))
+- Fix joining of f-strings with different quotes when using quote style `Preserve` ([#15524](https://github.com/astral-sh/ruff/pull/15524))
+
+### Server
+
+- Avoid indexing the same workspace multiple times ([#15495](https://github.com/astral-sh/ruff/pull/15495))
+- Display context for `ruff.configuration` errors ([#15452](https://github.com/astral-sh/ruff/pull/15452))
+
+### Configuration
+
+- Remove `flatten` to improve deserialization error messages ([#15414](https://github.com/astral-sh/ruff/pull/15414))
+
+### Bug fixes
+
+- Parse triple-quoted string annotations as if parenthesized ([#15387](https://github.com/astral-sh/ruff/pull/15387))
+- \[`fastapi`\] Update `Annotated` fixes (`FAST002`) ([#15462](https://github.com/astral-sh/ruff/pull/15462))
+- \[`flake8-bandit`\] Check for `builtins` instead of `builtin` (`S102`, `PTH123`) ([#15443](https://github.com/astral-sh/ruff/pull/15443))
+- \[`flake8-pathlib`\] Fix `--select` for `os-path-dirname` (`PTH120`) ([#15446](https://github.com/astral-sh/ruff/pull/15446))
+- \[`ruff`\] Fix false positive on global keyword (`RUF052`) ([#15235](https://github.com/astral-sh/ruff/pull/15235))
+
+## 0.9.3
+
+### Preview features
+
+- \[`airflow`\] Argument `fail_stop` in DAG has been renamed as `fail_fast` (`AIR302`) ([#15633](https://github.com/astral-sh/ruff/pull/15633))
+- \[`airflow`\] Extend `AIR303` with more symbols ([#15611](https://github.com/astral-sh/ruff/pull/15611))
+- \[`flake8-bandit`\] Report all references to suspicious functions (`S3`) ([#15541](https://github.com/astral-sh/ruff/pull/15541))
+- \[`flake8-pytest-style`\] Do not emit diagnostics for empty `for` loops (`PT012`, `PT031`) ([#15542](https://github.com/astral-sh/ruff/pull/15542))
+- \[`flake8-simplify`\] Avoid double negations (`SIM103`) ([#15562](https://github.com/astral-sh/ruff/pull/15562))
+- \[`pyflakes`\] Fix infinite loop with unused local import in `__init__.py` (`F401`) ([#15517](https://github.com/astral-sh/ruff/pull/15517))
+- \[`pylint`\] Do not report methods with only one `EM101`-compatible `raise` (`PLR6301`) ([#15507](https://github.com/astral-sh/ruff/pull/15507))
+- \[`pylint`\] Implement `redefined-slots-in-subclass` (`W0244`) ([#9640](https://github.com/astral-sh/ruff/pull/9640))
+- \[`pyupgrade`\] Add rules to use PEP 695 generics in classes and functions (`UP046`, `UP047`) ([#15565](https://github.com/astral-sh/ruff/pull/15565), [#15659](https://github.com/astral-sh/ruff/pull/15659))
+- \[`refurb`\] Implement `for-loop-writes` (`FURB122`) ([#10630](https://github.com/astral-sh/ruff/pull/10630))
+- \[`ruff`\] Implement `needless-else` clause (`RUF047`) ([#15051](https://github.com/astral-sh/ruff/pull/15051))
+- \[`ruff`\] Implement `starmap-zip` (`RUF058`) ([#15483](https://github.com/astral-sh/ruff/pull/15483))
+
+### Rule changes
+
+- \[`flake8-bugbear`\] Do not raise error if keyword argument is present and target-python version is less or equals than 3.9 (`B903`) ([#15549](https://github.com/astral-sh/ruff/pull/15549))
+- \[`flake8-comprehensions`\] strip parentheses around generators in `unnecessary-generator-set` (`C401`) ([#15553](https://github.com/astral-sh/ruff/pull/15553))
+- \[`flake8-pytest-style`\] Rewrite references to `.exception` (`PT027`) ([#15680](https://github.com/astral-sh/ruff/pull/15680))
+- \[`flake8-simplify`\] Mark fixes as unsafe (`SIM201`, `SIM202`) ([#15626](https://github.com/astral-sh/ruff/pull/15626))
+- \[`flake8-type-checking`\] Fix some safe fixes being labeled unsafe (`TC006`,`TC008`) ([#15638](https://github.com/astral-sh/ruff/pull/15638))
+- \[`isort`\] Omit trailing whitespace in `unsorted-imports` (`I001`) ([#15518](https://github.com/astral-sh/ruff/pull/15518))
+- \[`pydoclint`\] Allow ignoring one line docstrings for `DOC` rules ([#13302](https://github.com/astral-sh/ruff/pull/13302))
+- \[`pyflakes`\] Apply redefinition fixes by source code order (`F811`) ([#15575](https://github.com/astral-sh/ruff/pull/15575))
+- \[`pyflakes`\] Avoid removing too many imports in `redefined-while-unused` (`F811`) ([#15585](https://github.com/astral-sh/ruff/pull/15585))
+- \[`pyflakes`\] Group redefinition fixes by source statement (`F811`) ([#15574](https://github.com/astral-sh/ruff/pull/15574))
+- \[`pylint`\] Include name of base class in message for `redefined-slots-in-subclass` (`W0244`) ([#15559](https://github.com/astral-sh/ruff/pull/15559))
+- \[`ruff`\] Update fix for `RUF055` to use `var == value` ([#15605](https://github.com/astral-sh/ruff/pull/15605))
+
+### Formatter
+
+- Fix bracket spacing for single-element tuples in f-string expressions ([#15537](https://github.com/astral-sh/ruff/pull/15537))
+- Fix unstable f-string formatting for expressions containing a trailing comma ([#15545](https://github.com/astral-sh/ruff/pull/15545))
+
+### Performance
+
+- Avoid quadratic membership check in import fixes ([#15576](https://github.com/astral-sh/ruff/pull/15576))
+
+### Server
+
+- Allow `unsafe-fixes` settings for code actions ([#15666](https://github.com/astral-sh/ruff/pull/15666))
+
+### Bug fixes
+
+- \[`flake8-bandit`\] Add missing single-line/dotall regex flag (`S608`) ([#15654](https://github.com/astral-sh/ruff/pull/15654))
+- \[`flake8-import-conventions`\] Fix infinite loop between `ICN001` and `I002` (`ICN001`) ([#15480](https://github.com/astral-sh/ruff/pull/15480))
+- \[`flake8-simplify`\] Do not emit diagnostics for expressions inside string type annotations (`SIM222`, `SIM223`) ([#15405](https://github.com/astral-sh/ruff/pull/15405))
+- \[`pyflakes`\] Treat arguments passed to the `default=` parameter of `TypeVar` as type expressions (`F821`) ([#15679](https://github.com/astral-sh/ruff/pull/15679))
+- \[`pyupgrade`\] Avoid syntax error when the iterable is a non-parenthesized tuple (`UP028`) ([#15543](https://github.com/astral-sh/ruff/pull/15543))
+- \[`ruff`\] Exempt `NewType` calls where the original type is immutable (`RUF009`) ([#15588](https://github.com/astral-sh/ruff/pull/15588))
+- Preserve raw string prefix and escapes in all codegen fixes ([#15694](https://github.com/astral-sh/ruff/pull/15694))
+
+### Documentation
+
+- Generate documentation redirects for lowercase rule codes ([#15564](https://github.com/astral-sh/ruff/pull/15564))
+- `TRY300`: Add some extra notes on not catching exceptions you didn't expect ([#15036](https://github.com/astral-sh/ruff/pull/15036))
+
+## 0.9.4
+
+### Preview features
+
+- \[`airflow`\] Extend airflow context parameter check for `BaseOperator.execute` (`AIR302`) ([#15713](https://github.com/astral-sh/ruff/pull/15713))
+- \[`airflow`\] Update `AIR302` to check for deprecated context keys ([#15144](https://github.com/astral-sh/ruff/pull/15144))
+- \[`flake8-bandit`\] Permit suspicious imports within stub files (`S4`) ([#15822](https://github.com/astral-sh/ruff/pull/15822))
+- \[`pylint`\] Do not trigger `PLR6201` on empty collections ([#15732](https://github.com/astral-sh/ruff/pull/15732))
+- \[`refurb`\] Do not emit diagnostic when loop variables are used outside loop body (`FURB122`) ([#15757](https://github.com/astral-sh/ruff/pull/15757))
+- \[`ruff`\] Add support for more `re` patterns (`RUF055`) ([#15764](https://github.com/astral-sh/ruff/pull/15764))
+- \[`ruff`\] Check for shadowed `map` before suggesting fix (`RUF058`) ([#15790](https://github.com/astral-sh/ruff/pull/15790))
+- \[`ruff`\] Do not emit diagnostic when all arguments to `zip()` are variadic (`RUF058`) ([#15744](https://github.com/astral-sh/ruff/pull/15744))
+- \[`ruff`\] Parenthesize fix when argument spans multiple lines for `unnecessary-round` (`RUF057`) ([#15703](https://github.com/astral-sh/ruff/pull/15703))
+
+### Rule changes
+
+- Preserve quote style in generated code ([#15726](https://github.com/astral-sh/ruff/pull/15726), [#15778](https://github.com/astral-sh/ruff/pull/15778), [#15794](https://github.com/astral-sh/ruff/pull/15794))
+- \[`flake8-bugbear`\] Exempt `NewType` calls where the original type is immutable (`B008`) ([#15765](https://github.com/astral-sh/ruff/pull/15765))
+- \[`pylint`\] Honor banned top-level imports by `TID253` in `PLC0415`. ([#15628](https://github.com/astral-sh/ruff/pull/15628))
+- \[`pyupgrade`\] Ignore `is_typeddict` and `TypedDict` for `deprecated-import` (`UP035`) ([#15800](https://github.com/astral-sh/ruff/pull/15800))
+
+### CLI
+
+- Fix formatter warning message for `flake8-quotes` option ([#15788](https://github.com/astral-sh/ruff/pull/15788))
+- Implement tab autocomplete for `ruff config` ([#15603](https://github.com/astral-sh/ruff/pull/15603))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Do not emit `unnecessary-map` diagnostic when lambda has different arity (`C417`) ([#15802](https://github.com/astral-sh/ruff/pull/15802))
+- \[`flake8-comprehensions`\] Parenthesize `sorted` when needed for `unnecessary-call-around-sorted` (`C413`) ([#15825](https://github.com/astral-sh/ruff/pull/15825))
+- \[`pyupgrade`\] Handle end-of-line comments for `quoted-annotation` (`UP037`) ([#15824](https://github.com/astral-sh/ruff/pull/15824))
+
+### Documentation
+
+- Add missing config docstrings ([#15803](https://github.com/astral-sh/ruff/pull/15803))
+- Add references to `trio.run_process` and `anyio.run_process` ([#15761](https://github.com/astral-sh/ruff/pull/15761))
+- Use `uv init --lib` in tutorial ([#15718](https://github.com/astral-sh/ruff/pull/15718))
+
+## 0.9.5
+
+### Preview features
+
+- Recognize all symbols named `TYPE_CHECKING` for `in_type_checking_block` ([#15719](https://github.com/astral-sh/ruff/pull/15719))
+- \[`flake8-comprehensions`\] Handle builtins at top of file correctly for `unnecessary-dict-comprehension-for-iterable` (`C420`) ([#15837](https://github.com/astral-sh/ruff/pull/15837))
+- \[`flake8-logging`\] `.exception()` and `exc_info=` outside exception handlers (`LOG004`, `LOG014`) ([#15799](https://github.com/astral-sh/ruff/pull/15799))
+- \[`flake8-pyi`\] Fix incorrect behaviour of `custom-typevar-return-type` preview-mode autofix if `typing` was already imported (`PYI019`) ([#15853](https://github.com/astral-sh/ruff/pull/15853))
+- \[`flake8-pyi`\] Fix more complex cases (`PYI019`) ([#15821](https://github.com/astral-sh/ruff/pull/15821))
+- \[`flake8-pyi`\] Make `PYI019` autofixable for `.py` files in preview mode as well as stubs ([#15889](https://github.com/astral-sh/ruff/pull/15889))
+- \[`flake8-pyi`\] Remove type parameter correctly when it is the last (`PYI019`) ([#15854](https://github.com/astral-sh/ruff/pull/15854))
+- \[`pylint`\] Fix missing parens in unsafe fix for `unnecessary-dunder-call` (`PLC2801`) ([#15762](https://github.com/astral-sh/ruff/pull/15762))
+- \[`pyupgrade`\] Better messages and diagnostic range (`UP015`) ([#15872](https://github.com/astral-sh/ruff/pull/15872))
+- \[`pyupgrade`\] Rename private type parameters in PEP 695 generics (`UP049`) ([#15862](https://github.com/astral-sh/ruff/pull/15862))
+- \[`refurb`\] Also report non-name expressions (`FURB169`) ([#15905](https://github.com/astral-sh/ruff/pull/15905))
+- \[`refurb`\] Mark fix as unsafe if there are comments (`FURB171`) ([#15832](https://github.com/astral-sh/ruff/pull/15832))
+- \[`ruff`\] Classes with mixed type variable style (`RUF053`) ([#15841](https://github.com/astral-sh/ruff/pull/15841))
+- \[`airflow`\] `BashOperator` has been moved to `airflow.providers.standard.operators.bash.BashOperator` (`AIR302`) ([#15922](https://github.com/astral-sh/ruff/pull/15922))
+- \[`flake8-pyi`\] Add autofix for unused-private-type-var (`PYI018`) ([#15999](https://github.com/astral-sh/ruff/pull/15999))
+- \[`flake8-pyi`\] Significantly improve accuracy of `PYI019` if preview mode is enabled ([#15888](https://github.com/astral-sh/ruff/pull/15888))
+
+### Rule changes
+
+- Preserve triple quotes and prefixes for strings ([#15818](https://github.com/astral-sh/ruff/pull/15818))
+- \[`flake8-comprehensions`\] Skip when `TypeError` present from too many (kw)args for `C410`,`C411`, and `C418` ([#15838](https://github.com/astral-sh/ruff/pull/15838))
+- \[`flake8-pyi`\] Rename `PYI019` and improve its diagnostic message ([#15885](https://github.com/astral-sh/ruff/pull/15885))
+- \[`pep8-naming`\] Ignore `@override` methods (`N803`) ([#15954](https://github.com/astral-sh/ruff/pull/15954))
+- \[`pyupgrade`\] Reuse replacement logic from `UP046` and `UP047` to preserve more comments (`UP040`) ([#15840](https://github.com/astral-sh/ruff/pull/15840))
+- \[`ruff`\] Analyze deferred annotations before enforcing `mutable-(data)class-default` and `function-call-in-dataclass-default-argument` (`RUF008`,`RUF009`,`RUF012`) ([#15921](https://github.com/astral-sh/ruff/pull/15921))
+- \[`pycodestyle`\] Exempt `sys.path += ...` calls (`E402`) ([#15980](https://github.com/astral-sh/ruff/pull/15980))
+
+### Configuration
+
+- Config error only when `flake8-import-conventions` alias conflicts with `isort.required-imports` bound name ([#15918](https://github.com/astral-sh/ruff/pull/15918))
+- Workaround Even Better TOML crash related to `allOf` ([#15992](https://github.com/astral-sh/ruff/pull/15992))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Unnecessary `list` comprehension (rewrite as a `set` comprehension) (`C403`) - Handle extraneous parentheses around list comprehension ([#15877](https://github.com/astral-sh/ruff/pull/15877))
+- \[`flake8-comprehensions`\] Handle trailing comma in fixes for `unnecessary-generator-list/set` (`C400`,`C401`) ([#15929](https://github.com/astral-sh/ruff/pull/15929))
+- \[`flake8-pyi`\] Fix several correctness issues with `custom-type-var-return-type` (`PYI019`) ([#15851](https://github.com/astral-sh/ruff/pull/15851))
+- \[`pep8-naming`\] Consider any number of leading underscore for `N801` ([#15988](https://github.com/astral-sh/ruff/pull/15988))
+- \[`pyflakes`\] Visit forward annotations in `TypeAliasType` as types (`F401`) ([#15829](https://github.com/astral-sh/ruff/pull/15829))
+- \[`pylint`\] Correct min/max auto-fix and suggestion for (`PL1730`) ([#15930](https://github.com/astral-sh/ruff/pull/15930))
+- \[`refurb`\] Handle unparenthesized tuples correctly (`FURB122`, `FURB142`) ([#15953](https://github.com/astral-sh/ruff/pull/15953))
+- \[`refurb`\] Avoid `None | None` as well as better detection and fix (`FURB168`) ([#15779](https://github.com/astral-sh/ruff/pull/15779))
+
+### Documentation
+
+- Add deprecation warning for `ruff-lsp` related settings ([#15850](https://github.com/astral-sh/ruff/pull/15850))
+- Docs (`linter.md`): clarify that Python files are always searched for in subdirectories ([#15882](https://github.com/astral-sh/ruff/pull/15882))
+- Fix a typo in `non_pep695_generic_class.rs` ([#15946](https://github.com/astral-sh/ruff/pull/15946))
+- Improve Docs: Pylint subcategories' codes ([#15909](https://github.com/astral-sh/ruff/pull/15909))
+- Remove non-existing `lint.extendIgnore` editor setting ([#15844](https://github.com/astral-sh/ruff/pull/15844))
+- Update black deviations ([#15928](https://github.com/astral-sh/ruff/pull/15928))
+- Mention `UP049` in `UP046` and `UP047`, add `See also` section to `UP040` ([#15956](https://github.com/astral-sh/ruff/pull/15956))
+- Add instance variable examples to `RUF012` ([#15982](https://github.com/astral-sh/ruff/pull/15982))
+- Explain precedence for `ignore` and `select` config ([#15883](https://github.com/astral-sh/ruff/pull/15883))
+
+## 0.9.6
+
+### Preview features
+
+- \[`airflow`\] Add `external_task.{ExternalTaskMarker, ExternalTaskSensor}` for `AIR302` ([#16014](https://github.com/astral-sh/ruff/pull/16014))
+- \[`flake8-builtins`\] Make strict module name comparison optional (`A005`) ([#15951](https://github.com/astral-sh/ruff/pull/15951))
+- \[`flake8-pyi`\] Extend fix to Python \<= 3.9 for `redundant-none-literal` (`PYI061`) ([#16044](https://github.com/astral-sh/ruff/pull/16044))
+- \[`pylint`\] Also report when the object isn't a literal (`PLE1310`) ([#15985](https://github.com/astral-sh/ruff/pull/15985))
+- \[`ruff`\] Implement `indented-form-feed` (`RUF054`) ([#16049](https://github.com/astral-sh/ruff/pull/16049))
+- \[`ruff`\] Skip type definitions for `missing-f-string-syntax` (`RUF027`) ([#16054](https://github.com/astral-sh/ruff/pull/16054))
+
+### Rule changes
+
+- \[`flake8-annotations`\] Correct syntax for `typing.Union` in suggested return type fixes for `ANN20x` rules ([#16025](https://github.com/astral-sh/ruff/pull/16025))
+- \[`flake8-builtins`\] Match upstream module name comparison (`A005`) ([#16006](https://github.com/astral-sh/ruff/pull/16006))
+- \[`flake8-comprehensions`\] Detect overshadowed `list`/`set`/`dict`, ignore variadics and named expressions (`C417`) ([#15955](https://github.com/astral-sh/ruff/pull/15955))
+- \[`flake8-pie`\] Remove following comma correctly when the unpacked dictionary is empty (`PIE800`) ([#16008](https://github.com/astral-sh/ruff/pull/16008))
+- \[`flake8-simplify`\] Only trigger `SIM401` on known dictionaries ([#15995](https://github.com/astral-sh/ruff/pull/15995))
+- \[`pylint`\] Do not report calls when object type and argument type mismatch, remove custom escape handling logic (`PLE1310`) ([#15984](https://github.com/astral-sh/ruff/pull/15984))
+- \[`pyupgrade`\] Comments within parenthesized value ranges should not affect applicability (`UP040`) ([#16027](https://github.com/astral-sh/ruff/pull/16027))
+- \[`pyupgrade`\] Don't introduce invalid syntax when upgrading old-style type aliases with parenthesized multiline values (`UP040`) ([#16026](https://github.com/astral-sh/ruff/pull/16026))
+- \[`pyupgrade`\] Ensure we do not rename two type parameters to the same name (`UP049`) ([#16038](https://github.com/astral-sh/ruff/pull/16038))
+- \[`pyupgrade`\] \[`ruff`\] Don't apply renamings if the new name is shadowed in a scope of one of the references to the binding (`UP049`, `RUF052`) ([#16032](https://github.com/astral-sh/ruff/pull/16032))
+- \[`ruff`\] Update `RUF009` to behave similar to `B008` and ignore attributes with immutable types ([#16048](https://github.com/astral-sh/ruff/pull/16048))
+
+### Server
+
+- Root exclusions in the server to project root ([#16043](https://github.com/astral-sh/ruff/pull/16043))
+
+### Bug fixes
+
+- \[`flake8-datetime`\] Ignore `.replace()` calls while looking for `.astimezone` ([#16050](https://github.com/astral-sh/ruff/pull/16050))
+- \[`flake8-type-checking`\] Avoid `TC004` false positive where the runtime definition is provided by `__getattr__` ([#16052](https://github.com/astral-sh/ruff/pull/16052))
+
+### Documentation
+
+- Improve `ruff-lsp` migration document ([#16072](https://github.com/astral-sh/ruff/pull/16072))
+- Undeprecate `ruff.nativeServer` ([#16039](https://github.com/astral-sh/ruff/pull/16039))
+
+## 0.9.7
+
+### Preview features
+
+- Consider `__new__` methods as special function type for enforcing class method or static method rules ([#13305](https://github.com/astral-sh/ruff/pull/13305))
+- \[`airflow`\] Improve the internal logic to differentiate deprecated symbols (`AIR303`) ([#16013](https://github.com/astral-sh/ruff/pull/16013))
+- \[`refurb`\] Manual timezone monkeypatching (`FURB162`) ([#16113](https://github.com/astral-sh/ruff/pull/16113))
+- \[`ruff`\] Implicit class variable in dataclass (`RUF045`) ([#14349](https://github.com/astral-sh/ruff/pull/14349))
+- \[`ruff`\] Skip singleton starred expressions for `incorrectly-parenthesized-tuple-in-subscript` (`RUF031`) ([#16083](https://github.com/astral-sh/ruff/pull/16083))
+- \[`refurb`\] Check for subclasses includes subscript expressions (`FURB189`) ([#16155](https://github.com/astral-sh/ruff/pull/16155))
+
+### Rule changes
+
+- \[`flake8-debugger`\] Also flag `sys.breakpointhook` and `sys.__breakpointhook__` (`T100`) ([#16191](https://github.com/astral-sh/ruff/pull/16191))
+- \[`pycodestyle`\] Exempt `site.addsitedir(...)` calls (`E402`) ([#16251](https://github.com/astral-sh/ruff/pull/16251))
+
+### Formatter
+
+- Fix unstable formatting of trailing end-of-line comments of parenthesized attribute values ([#16187](https://github.com/astral-sh/ruff/pull/16187))
+
+### Server
+
+- Fix handling of requests received after shutdown message ([#16262](https://github.com/astral-sh/ruff/pull/16262))
+- Ignore `source.organizeImports.ruff` and `source.fixAll.ruff` code actions for a notebook cell ([#16154](https://github.com/astral-sh/ruff/pull/16154))
+- Include document specific debug info for `ruff.printDebugInformation` ([#16215](https://github.com/astral-sh/ruff/pull/16215))
+- Update server to return the debug info as string with `ruff.printDebugInformation` ([#16214](https://github.com/astral-sh/ruff/pull/16214))
+
+### CLI
+
+- Warn on invalid `noqa` even when there are no diagnostics ([#16178](https://github.com/astral-sh/ruff/pull/16178))
+- Better error messages while loading configuration `extend`s ([#15658](https://github.com/astral-sh/ruff/pull/15658))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Handle trailing comma in `C403` fix ([#16110](https://github.com/astral-sh/ruff/pull/16110))
+- \[`flake8-pyi`\] Avoid flagging `custom-typevar-for-self` on metaclass methods (`PYI019`) ([#16141](https://github.com/astral-sh/ruff/pull/16141))
+- \[`pydocstyle`\] Handle arguments with the same names as sections (`D417`) ([#16011](https://github.com/astral-sh/ruff/pull/16011))
+- \[`pylint`\] Correct ordering of arguments in fix for `if-stmt-min-max` (`PLR1730`) ([#16080](https://github.com/astral-sh/ruff/pull/16080))
+- \[`pylint`\] Do not offer fix for raw strings (`PLE251`) ([#16132](https://github.com/astral-sh/ruff/pull/16132))
+- \[`pyupgrade`\] Do not upgrade functional `TypedDicts` with private field names to the class-based syntax (`UP013`) ([#16219](https://github.com/astral-sh/ruff/pull/16219))
+- \[`pyupgrade`\] Handle micro version numbers correctly (`UP036`) ([#16091](https://github.com/astral-sh/ruff/pull/16091))
+- \[`pyupgrade`\] Unwrap unary expressions correctly (`UP018`) ([#15919](https://github.com/astral-sh/ruff/pull/15919))
+- \[`refurb`\] Correctly handle lengths of literal strings in `slice-to-remove-prefix-or-suffix` (`FURB188`) ([#16237](https://github.com/astral-sh/ruff/pull/16237))
+- \[`ruff`\] Skip `RUF001` diagnostics when visiting string type definitions ([#16122](https://github.com/astral-sh/ruff/pull/16122))
+
+### Documentation
+
+- Add FAQ entry for `source.*` code actions in Notebook ([#16212](https://github.com/astral-sh/ruff/pull/16212))
+- Add `SECURITY.md` ([#16224](https://github.com/astral-sh/ruff/pull/16224))
+
+## 0.9.8
+
+### Preview features
+
+- Start detecting version-related syntax errors in the parser ([#16090](https://github.com/astral-sh/ruff/pull/16090))
+
+### Rule changes
+
+- \[`pylint`\] Mark fix unsafe (`PLW1507`) ([#16343](https://github.com/astral-sh/ruff/pull/16343))
+- \[`pylint`\] Catch `case np.nan`/`case math.nan` in `match` statements (`PLW0177`) ([#16378](https://github.com/astral-sh/ruff/pull/16378))
+- \[`ruff`\] Add more Pydantic models variants to the list of default copy semantics (`RUF012`) ([#16291](https://github.com/astral-sh/ruff/pull/16291))
+
+### Server
+
+- Avoid indexing the project if `configurationPreference` is `editorOnly` ([#16381](https://github.com/astral-sh/ruff/pull/16381))
+- Avoid unnecessary info at non-trace server log level ([#16389](https://github.com/astral-sh/ruff/pull/16389))
+- Expand `ruff.configuration` to allow inline config ([#16296](https://github.com/astral-sh/ruff/pull/16296))
+- Notify users for invalid client settings ([#16361](https://github.com/astral-sh/ruff/pull/16361))
+
+### Configuration
+
+- Add `per-file-target-version` option ([#16257](https://github.com/astral-sh/ruff/pull/16257))
+
+### Bug fixes
+
+- \[`refurb`\] Do not consider docstring(s) (`FURB156`) ([#16391](https://github.com/astral-sh/ruff/pull/16391))
+- \[`flake8-self`\] Ignore attribute accesses on instance-like variables (`SLF001`) ([#16149](https://github.com/astral-sh/ruff/pull/16149))
+- \[`pylint`\] Fix false positives, add missing methods, and support positional-only parameters (`PLE0302`) ([#16263](https://github.com/astral-sh/ruff/pull/16263))
+- \[`flake8-pyi`\] Mark `PYI030` fix unsafe when comments are deleted ([#16322](https://github.com/astral-sh/ruff/pull/16322))
+
+### Documentation
+
+- Fix example for `S611` ([#16316](https://github.com/astral-sh/ruff/pull/16316))
+- Normalize inconsistent markdown headings in docstrings ([#16364](https://github.com/astral-sh/ruff/pull/16364))
+- Document MSRV policy ([#16384](https://github.com/astral-sh/ruff/pull/16384))
+
+## 0.9.9
+
+### Preview features
+
+- Fix caching of unsupported-syntax errors ([#16425](https://github.com/astral-sh/ruff/pull/16425))
+
+### Bug fixes
+
+- Only show unsupported-syntax errors in editors when preview mode is enabled ([#16429](https://github.com/astral-sh/ruff/pull/16429))
+
+## 0.9.10
+
+### Preview features
+
+- \[`ruff`\] Add new rule `RUF059`: Unused unpacked assignment ([#16449](https://github.com/astral-sh/ruff/pull/16449))
+- \[`syntax-errors`\] Detect assignment expressions before Python 3.8 ([#16383](https://github.com/astral-sh/ruff/pull/16383))
+- \[`syntax-errors`\] Named expressions in decorators before Python 3.9 ([#16386](https://github.com/astral-sh/ruff/pull/16386))
+- \[`syntax-errors`\] Parenthesized keyword argument names after Python 3.8 ([#16482](https://github.com/astral-sh/ruff/pull/16482))
+- \[`syntax-errors`\] Positional-only parameters before Python 3.8 ([#16481](https://github.com/astral-sh/ruff/pull/16481))
+- \[`syntax-errors`\] Tuple unpacking in `return` and `yield` before Python 3.8 ([#16485](https://github.com/astral-sh/ruff/pull/16485))
+- \[`syntax-errors`\] Type parameter defaults before Python 3.13 ([#16447](https://github.com/astral-sh/ruff/pull/16447))
+- \[`syntax-errors`\] Type parameter lists before Python 3.12 ([#16479](https://github.com/astral-sh/ruff/pull/16479))
+- \[`syntax-errors`\] `except*` before Python 3.11 ([#16446](https://github.com/astral-sh/ruff/pull/16446))
+- \[`syntax-errors`\] `type` statements before Python 3.12 ([#16478](https://github.com/astral-sh/ruff/pull/16478))
+
+### Bug fixes
+
+- Escape template filenames in glob patterns in configuration ([#16407](https://github.com/astral-sh/ruff/pull/16407))
+- \[`flake8-simplify`\] Exempt unittest context methods for `SIM115` rule ([#16439](https://github.com/astral-sh/ruff/pull/16439))
+- Formatter: Fix syntax error location in notebooks ([#16499](https://github.com/astral-sh/ruff/pull/16499))
+- \[`pyupgrade`\] Do not offer fix when at least one target is `global`/`nonlocal` (`UP028`) ([#16451](https://github.com/astral-sh/ruff/pull/16451))
+- \[`flake8-builtins`\] Ignore variables matching module attribute names (`A001`) ([#16454](https://github.com/astral-sh/ruff/pull/16454))
+- \[`pylint`\] Convert `code` keyword argument to a positional argument in fix for (`PLR1722`) ([#16424](https://github.com/astral-sh/ruff/pull/16424))
+
+### CLI
+
+- Move rule code from `description` to `check_name` in GitLab output serializer ([#16437](https://github.com/astral-sh/ruff/pull/16437))
+
+### Documentation
+
+- \[`pydocstyle`\] Clarify that `D417` only checks docstrings with an arguments section ([#16494](https://github.com/astral-sh/ruff/pull/16494))

clippy.toml

@@ -1,6 +1,7 @@
 doc-valid-idents = [
     "..",
     "CodeQL",
+    "CPython",
     "FastAPI",
     "IPython",
     "LangChain",
@@ -14,7 +15,7 @@ doc-valid-idents = [
     "SNMPv1",
     "SNMPv2",
     "SNMPv3",
-    "PyFlakes"
+    "PyFlakes",
 ]
 
 ignore-interior-mutability = [

crates/ruff/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.11.8"
+version = "0.12.5"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }
@@ -20,6 +20,7 @@ ruff_graph = { workspace = true, features = ["serde", "clap"] }
 ruff_linter = { workspace = true, features = ["clap"] }
 ruff_macros = { workspace = true }
 ruff_notebook = { workspace = true }
+ruff_options_metadata = { workspace = true, features = ["serde"] }
 ruff_python_ast = { workspace = true }
 ruff_python_formatter = { workspace = true }
 ruff_python_parser = { workspace = true }
@@ -30,7 +31,7 @@ ruff_workspace = { workspace = true }
 
 anyhow = { workspace = true }
 argfile = { workspace = true }
-bincode = { workspace = true }
+bincode = { workspace = true, features = ["serde"] }
 bitflags = { workspace = true }
 cachedir = { workspace = true }
 clap = { workspace = true, features = ["derive", "env", "wrap_help"] }
@@ -67,6 +68,7 @@ ruff_linter = { workspace = true, features = ["clap", "test-rules"] }
 assert_fs = { workspace = true }
 # Avoid writing colored snapshots when running tests from the terminal
 colored = { workspace = true, features = ["no-color"] }
+dunce = { workspace = true }
 indoc = { workspace = true }
 insta = { workspace = true, features = ["filters", "json"] }
 insta-cmd = { workspace = true }
@@ -83,7 +85,7 @@ dist = true
 [target.'cfg(target_os = "windows")'.dependencies]
 mimalloc = { workspace = true }
 
-[target.'cfg(all(not(target_os = "windows"), not(target_os = "openbsd"), not(target_os = "aix"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64")))'.dependencies]
+[target.'cfg(all(not(target_os = "windows"), not(target_os = "openbsd"), not(target_os = "aix"), not(target_os = "android"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64")))'.dependencies]
 tikv-jemallocator = { workspace = true }
 
 [lints]

crates/ruff/src/args.rs

@@ -8,7 +8,7 @@ use std::sync::Arc;
 use crate::commands::completions::config::{OptionString, OptionStringParser};
 use anyhow::bail;
 use clap::builder::{TypedValueParser, ValueParserFactory};
-use clap::{command, Parser, Subcommand};
+use clap::{Parser, Subcommand, command};
 use colored::Colorize;
 use itertools::Itertools;
 use path_absolutize::path_dedot;
@@ -22,12 +22,12 @@ use ruff_linter::settings::types::{
     PythonVersion, UnsafeFixes,
 };
 use ruff_linter::{RuleParser, RuleSelector, RuleSelectorParser};
+use ruff_options_metadata::{OptionEntry, OptionsMetadata};
 use ruff_python_ast as ast;
 use ruff_source_file::{LineIndex, OneIndexed, PositionEncoding};
 use ruff_text_size::TextRange;
 use ruff_workspace::configuration::{Configuration, RuleSelection};
 use ruff_workspace::options::{Options, PycodestyleOptions};
-use ruff_workspace::options_base::{OptionEntry, OptionsMetadata};
 use ruff_workspace::resolver::ConfigurationTransformer;
 use rustc_hash::FxHashMap;
 use toml;
@@ -169,6 +169,9 @@ pub struct AnalyzeGraphCommand {
     /// Attempt to detect imports from string literals.
     #[clap(long)]
     detect_string_imports: bool,
+    /// The minimum number of dots in a string import to consider it a valid import.
+    #[clap(long)]
+    min_dots: Option<usize>,
     /// Enable preview mode. Use `--no-preview` to disable.
     #[arg(long, overrides_with("no_preview"))]
     preview: bool,
@@ -808,6 +811,7 @@ impl AnalyzeGraphCommand {
             } else {
                 None
             },
+            string_imports_min_dots: self.min_dots,
             preview: resolve_bool_arg(self.preview, self.no_preview).map(PreviewMode::from),
             target_version: self.target_version.map(ast::PythonVersion::from),
             ..ExplicitConfigOverrides::default()
@@ -1126,10 +1130,10 @@ impl std::fmt::Display for FormatRangeParseError {
                 write!(
                     f,
                     "the start position '{start_invalid}' is greater than the end position '{end_invalid}'.\n  {tip} Try switching start and end: '{end}-{start}'",
-                    start_invalid=start.to_string().bold().yellow(),
-                    end_invalid=end.to_string().bold().yellow(),
-                    start=start.to_string().green().bold(),
-                    end=end.to_string().green().bold()
+                    start_invalid = start.to_string().bold().yellow(),
+                    end_invalid = end.to_string().bold().yellow(),
+                    start = start.to_string().green().bold(),
+                    end = end.to_string().green().bold()
                 )
             }
             FormatRangeParseError::InvalidStart(inner) => inner.write(f, true),
@@ -1230,30 +1234,36 @@ impl LineColumnParseError {
 
         match self {
             LineColumnParseError::ColumnParseError(inner) => {
-                write!(f, "the {range}s column is not a valid number ({inner})'\n  {tip} The format is 'line:column'.")
+                write!(
+                    f,
+                    "the {range}s column is not a valid number ({inner})'\n  {tip} The format is 'line:column'."
+                )
             }
             LineColumnParseError::LineParseError(inner) => {
-                write!(f, "the {range} line is not a valid number ({inner})\n  {tip} The format is 'line:column'.")
+                write!(
+                    f,
+                    "the {range} line is not a valid number ({inner})\n  {tip} The format is 'line:column'."
+                )
             }
             LineColumnParseError::ZeroColumnIndex { line } => {
                 write!(
                     f,
                     "the {range} column is 0, but it should be 1 or greater.\n  {tip} The column numbers start at 1.\n  {tip} Try {suggestion} instead.",
-                    suggestion=format!("{line}:1").green().bold()
+                    suggestion = format!("{line}:1").green().bold()
                 )
             }
             LineColumnParseError::ZeroLineIndex { column } => {
                 write!(
                     f,
                     "the {range} line is 0, but it should be 1 or greater.\n  {tip} The line numbers start at 1.\n  {tip} Try {suggestion} instead.",
-                    suggestion=format!("1:{column}").green().bold()
+                    suggestion = format!("1:{column}").green().bold()
                 )
             }
             LineColumnParseError::ZeroLineAndColumnIndex => {
                 write!(
                     f,
                     "the {range} line and column are both 0, but they should be 1 or greater.\n  {tip} The line and column numbers start at 1.\n  {tip} Try {suggestion} instead.",
-                    suggestion="1:1".to_string().green().bold()
+                    suggestion = "1:1".to_string().green().bold()
                 )
             }
         }
@@ -1299,6 +1309,7 @@ struct ExplicitConfigOverrides {
     show_fixes: Option<bool>,
     extension: Option<Vec<ExtensionPair>>,
     detect_string_imports: Option<bool>,
+    string_imports_min_dots: Option<usize>,
 }
 
 impl ConfigurationTransformer for ExplicitConfigOverrides {
@@ -1386,6 +1397,9 @@ impl ConfigurationTransformer for ExplicitConfigOverrides {
         if let Some(detect_string_imports) = &self.detect_string_imports {
             config.analyze.detect_string_imports = Some(*detect_string_imports);
         }
+        if let Some(string_imports_min_dots) = &self.string_imports_min_dots {
+            config.analyze.string_imports_min_dots = Some(*string_imports_min_dots);
+        }
 
         config
     }

crates/ruff/src/cache.rs

@@ -3,8 +3,8 @@ use std::fs::{self, File};
 use std::hash::Hasher;
 use std::io::{self, BufReader, Write};
 use std::path::{Path, PathBuf};
-use std::sync::atomic::{AtomicU64, Ordering};
 use std::sync::Mutex;
+use std::sync::atomic::{AtomicU64, Ordering};
 use std::time::{Duration, SystemTime};
 
 use anyhow::{Context, Result};
@@ -13,21 +13,22 @@ use itertools::Itertools;
 use log::{debug, error};
 use rayon::iter::ParallelIterator;
 use rayon::iter::{IntoParallelIterator, ParallelBridge};
+use ruff_linter::codes::Rule;
 use rustc_hash::FxHashMap;
-use serde::{Deserialize, Serialize};
 use tempfile::NamedTempFile;
 
 use ruff_cache::{CacheKey, CacheKeyHasher};
-use ruff_diagnostics::{DiagnosticKind, Fix};
-use ruff_linter::message::{DiagnosticMessage, Message};
+use ruff_db::diagnostic::Diagnostic;
+use ruff_diagnostics::Fix;
+use ruff_linter::message::create_lint_diagnostic;
 use ruff_linter::package::PackageRoot;
-use ruff_linter::{warn_user, VERSION};
+use ruff_linter::{VERSION, warn_user};
 use ruff_macros::CacheKey;
 use ruff_notebook::NotebookIndex;
 use ruff_source_file::SourceFileBuilder;
 use ruff_text_size::{TextRange, TextSize};
-use ruff_workspace::resolver::Resolver;
 use ruff_workspace::Settings;
+use ruff_workspace::resolver::Resolver;
 
 use crate::diagnostics::Diagnostics;
 
@@ -117,13 +118,14 @@ impl Cache {
             }
         };
 
-        let mut package: PackageCache = match bincode::deserialize_from(BufReader::new(file)) {
-            Ok(package) => package,
-            Err(err) => {
-                warn_user!("Failed parse cache file `{}`: {err}", path.display());
-                return Cache::empty(path, package_root);
-            }
-        };
+        let mut package: PackageCache =
+            match bincode::decode_from_reader(BufReader::new(file), bincode::config::standard()) {
+                Ok(package) => package,
+                Err(err) => {
+                    warn_user!("Failed parse cache file `{}`: {err}", path.display());
+                    return Cache::empty(path, package_root);
+                }
+            };
 
         // Sanity check.
         if package.package_root != package_root {
@@ -175,8 +177,8 @@ impl Cache {
 
         // Serialize to in-memory buffer because hyperfine benchmark showed that it's faster than
         // using a `BufWriter` and our cache files are small enough that streaming isn't necessary.
-        let serialized =
-            bincode::serialize(&self.package).context("Failed to serialize cache data")?;
+        let serialized = bincode::encode_to_vec(&self.package, bincode::config::standard())
+            .context("Failed to serialize cache data")?;
         temp_file
             .write_all(&serialized)
             .context("Failed to write serialized cache to temporary file.")?;
@@ -311,7 +313,7 @@ impl Cache {
 }
 
 /// On disk representation of a cache of a package.
-#[derive(Deserialize, Debug, Serialize)]
+#[derive(bincode::Encode, Debug, bincode::Decode)]
 struct PackageCache {
     /// Path to the root of the package.
     ///
@@ -323,7 +325,7 @@ struct PackageCache {
 }
 
 /// On disk representation of the cache per source file.
-#[derive(Deserialize, Debug, Serialize)]
+#[derive(bincode::Decode, Debug, bincode::Encode)]
 pub(crate) struct FileCache {
     /// Key that determines if the cached item is still valid.
     key: u64,
@@ -340,21 +342,23 @@ impl FileCache {
     /// Convert the file cache into `Diagnostics`, using `path` as file name.
     pub(crate) fn to_diagnostics(&self, path: &Path) -> Option<Diagnostics> {
         self.data.lint.as_ref().map(|lint| {
-            let messages = if lint.messages.is_empty() {
+            let diagnostics = if lint.messages.is_empty() {
                 Vec::new()
             } else {
                 let file = SourceFileBuilder::new(path.to_string_lossy(), &*lint.source).finish();
                 lint.messages
                     .iter()
                     .map(|msg| {
-                        Message::Diagnostic(DiagnosticMessage {
-                            kind: msg.kind.clone(),
-                            range: msg.range,
-                            fix: msg.fix.clone(),
-                            file: file.clone(),
-                            noqa_offset: msg.noqa_offset,
-                            parent: msg.parent,
-                        })
+                        create_lint_diagnostic(
+                            &msg.body,
+                            msg.suggestion.as_ref(),
+                            msg.range,
+                            msg.fix.clone(),
+                            msg.parent,
+                            file.clone(),
+                            msg.noqa_offset,
+                            msg.rule,
+                        )
                     })
                     .collect()
             };
@@ -363,12 +367,12 @@ impl FileCache {
             } else {
                 FxHashMap::default()
             };
-            Diagnostics::new(messages, notebook_indexes)
+            Diagnostics::new(diagnostics, notebook_indexes)
         })
     }
 }
 
-#[derive(Debug, Default, Deserialize, Serialize)]
+#[derive(Debug, Default, bincode::Decode, bincode::Encode)]
 struct FileCacheData {
     lint: Option<LintCacheData>,
     formatted: bool,
@@ -406,7 +410,7 @@ pub(crate) fn init(path: &Path) -> Result<()> {
     Ok(())
 }
 
-#[derive(Deserialize, Debug, Serialize, PartialEq)]
+#[derive(bincode::Decode, Debug, bincode::Encode, PartialEq)]
 pub(crate) struct LintCacheData {
     /// Imports made.
     // pub(super) imports: ImportMap,
@@ -419,36 +423,42 @@ pub(crate) struct LintCacheData {
     /// This will be empty if `messages` is empty.
     pub(super) source: String,
     /// Notebook index if this file is a Jupyter Notebook.
+    #[bincode(with_serde)]
     pub(super) notebook_index: Option<NotebookIndex>,
 }
 
 impl LintCacheData {
-    pub(crate) fn from_messages(
-        messages: &[Message],
+    pub(crate) fn from_diagnostics(
+        diagnostics: &[Diagnostic],
         notebook_index: Option<NotebookIndex>,
     ) -> Self {
-        let source = if let Some(msg) = messages.first() {
-            msg.source_file().source_text().to_owned()
+        let source = if let Some(msg) = diagnostics.first() {
+            msg.expect_ruff_source_file().source_text().to_owned()
         } else {
             String::new() // No messages, no need to keep the source!
         };
 
-        let messages = messages
+        let messages = diagnostics
             .iter()
-            .filter_map(|message| message.as_diagnostic_message())
-            .map(|msg| {
+            // Parse the kebab-case rule name into a `Rule`. This will fail for syntax errors, so
+            // this also serves to filter them out, but we shouldn't be caching files with syntax
+            // errors anyway.
+            .filter_map(|msg| Some((msg.name().parse().ok()?, msg)))
+            .map(|(rule, msg)| {
                 // Make sure that all message use the same source file.
                 assert_eq!(
-                    &msg.file,
-                    messages.first().unwrap().source_file(),
+                    msg.expect_ruff_source_file(),
+                    diagnostics.first().unwrap().expect_ruff_source_file(),
                     "message uses a different source file"
                 );
                 CacheMessage {
-                    kind: msg.kind.clone(),
-                    range: msg.range,
-                    parent: msg.parent,
-                    fix: msg.fix.clone(),
-                    noqa_offset: msg.noqa_offset,
+                    rule,
+                    body: msg.body().to_string(),
+                    suggestion: msg.first_help_text().map(ToString::to_string),
+                    range: msg.expect_range(),
+                    parent: msg.parent(),
+                    fix: msg.fix().cloned(),
+                    noqa_offset: msg.noqa_offset(),
                 }
             })
             .collect();
@@ -462,14 +472,24 @@ impl LintCacheData {
 }
 
 /// On disk representation of a diagnostic message.
-#[derive(Deserialize, Debug, Serialize, PartialEq)]
+#[derive(bincode::Decode, Debug, bincode::Encode, PartialEq)]
 pub(super) struct CacheMessage {
-    kind: DiagnosticKind,
+    /// The rule for the cached diagnostic.
+    #[bincode(with_serde)]
+    rule: Rule,
+    /// The message body to display to the user, to explain the diagnostic.
+    body: String,
+    /// The message to display to the user, to explain the suggested fix.
+    suggestion: Option<String>,
     /// Range into the message's [`FileCache::source`].
+    #[bincode(with_serde)]
     range: TextRange,
+    #[bincode(with_serde)]
     parent: Option<TextSize>,
+    #[bincode(with_serde)]
     fix: Option<Fix>,
-    noqa_offset: TextSize,
+    #[bincode(with_serde)]
+    noqa_offset: Option<TextSize>,
 }
 
 pub(crate) trait PackageCaches {
@@ -587,14 +607,14 @@ mod tests {
     use std::time::SystemTime;
 
     use anyhow::Result;
-    use filetime::{set_file_mtime, FileTime};
+    use filetime::{FileTime, set_file_mtime};
     use itertools::Itertools;
-    use ruff_linter::settings::LinterSettings;
     use test_case::test_case;
 
     use ruff_cache::CACHE_DIR_NAME;
-    use ruff_linter::message::Message;
+    use ruff_db::diagnostic::Diagnostic;
     use ruff_linter::package::PackageRoot;
+    use ruff_linter::settings::LinterSettings;
     use ruff_linter::settings::flags;
     use ruff_linter::settings::types::UnsafeFixes;
     use ruff_python_ast::{PySourceType, PythonVersion};
@@ -602,8 +622,8 @@ mod tests {
 
     use crate::cache::{self, FileCache, FileCacheData, FileCacheKey};
     use crate::cache::{Cache, RelativePathBuf};
-    use crate::commands::format::{format_path, FormatCommandError, FormatMode, FormatResult};
-    use crate::diagnostics::{lint_path, Diagnostics};
+    use crate::commands::format::{FormatCommandError, FormatMode, FormatResult, format_path};
+    use crate::diagnostics::{Diagnostics, lint_path};
 
     #[test_case("../ruff_linter/resources/test/fixtures", "ruff_tests/cache_same_results_ruff_linter"; "ruff_linter_fixtures")]
     #[test_case("../ruff_notebook/resources/test/fixtures", "ruff_tests/cache_same_results_ruff_notebook"; "ruff_notebook_fixtures")]
@@ -661,7 +681,7 @@ mod tests {
                     UnsafeFixes::Enabled,
                 )
                 .unwrap();
-                if diagnostics.messages.iter().any(Message::is_syntax_error) {
+                if diagnostics.inner.iter().any(Diagnostic::is_invalid_syntax) {
                     parse_errors.push(path.clone());
                 }
                 paths.push(path);

crates/ruff/src/commands/add_noqa.rs

@@ -11,7 +11,7 @@ use ruff_linter::source_kind::SourceKind;
 use ruff_linter::warn_user_once;
 use ruff_python_ast::{PySourceType, SourceType};
 use ruff_workspace::resolver::{
-    match_exclusion, python_files_in_path, PyprojectConfig, ResolvedFile,
+    PyprojectConfig, ResolvedFile, match_exclusion, python_files_in_path,
 };
 
 use crate::args::ConfigArguments;

crates/ruff/src/commands/analyze_graph.rs

@@ -1,6 +1,6 @@
 use crate::args::{AnalyzeGraphArgs, ConfigArguments};
 use crate::resolve::resolve;
-use crate::{resolve_default_files, ExitStatus};
+use crate::{ExitStatus, resolve_default_files};
 use anyhow::Result;
 use log::{debug, warn};
 use path_absolutize::CWD;
@@ -9,7 +9,7 @@ use ruff_graph::{Direction, ImportMap, ModuleDb, ModuleImports};
 use ruff_linter::package::PackageRoot;
 use ruff_linter::{warn_user, warn_user_once};
 use ruff_python_ast::{PySourceType, SourceType};
-use ruff_workspace::resolver::{match_exclusion, python_files_in_path, ResolvedFile};
+use ruff_workspace::resolver::{ResolvedFile, match_exclusion, python_files_in_path};
 use rustc_hash::FxHashMap;
 use std::io::Write;
 use std::path::{Path, PathBuf};
@@ -102,7 +102,7 @@ pub(crate) fn analyze_graph(
 
                 // Resolve the per-file settings.
                 let settings = resolver.resolve(path);
-                let string_imports = settings.analyze.detect_string_imports;
+                let string_imports = settings.analyze.string_imports;
                 let include_dependencies = settings.analyze.include_dependencies.get(path).cloned();
 
                 // Skip excluded files.

crates/ruff/src/commands/check.rs

@@ -11,18 +11,17 @@ use log::{debug, error, warn};
 use rayon::prelude::*;
 use rustc_hash::FxHashMap;
 
+use ruff_db::diagnostic::Diagnostic;
 use ruff_db::panic::catch_unwind;
-use ruff_diagnostics::Diagnostic;
-use ruff_linter::message::Message;
 use ruff_linter::package::PackageRoot;
 use ruff_linter::registry::Rule;
 use ruff_linter::settings::types::UnsafeFixes;
-use ruff_linter::settings::{flags, LinterSettings};
-use ruff_linter::{fs, warn_user_once, IOError};
+use ruff_linter::settings::{LinterSettings, flags};
+use ruff_linter::{IOError, Violation, fs, warn_user_once};
 use ruff_source_file::SourceFileBuilder;
-use ruff_text_size::{TextRange, TextSize};
+use ruff_text_size::TextRange;
 use ruff_workspace::resolver::{
-    match_exclusion, python_files_in_path, PyprojectConfig, ResolvedFile,
+    PyprojectConfig, ResolvedFile, match_exclusion, python_files_in_path,
 };
 
 use crate::args::ConfigArguments;
@@ -130,11 +129,7 @@ pub(crate) fn check(
                         SourceFileBuilder::new(path.to_string_lossy().as_ref(), "").finish();
 
                     Diagnostics::new(
-                        vec![Message::from_diagnostic(
-                            Diagnostic::new(IOError { message }, TextRange::default()),
-                            dummy,
-                            TextSize::default(),
-                        )],
+                        vec![IOError { message }.into_diagnostic(TextRange::default(), &dummy)],
                         FxHashMap::default(),
                     )
                 } else {
@@ -167,7 +162,9 @@ pub(crate) fn check(
             |a, b| (a.0 + b.0, a.1 + b.1),
         );
 
-    all_diagnostics.messages.sort();
+    all_diagnostics
+        .inner
+        .sort_by(Diagnostic::ruff_start_ordering);
 
     // Store the caches.
     caches.persist()?;
@@ -228,9 +225,9 @@ mod test {
     use ruff_linter::message::{Emitter, EmitterContext, TextEmitter};
     use ruff_linter::registry::Rule;
     use ruff_linter::settings::types::UnsafeFixes;
-    use ruff_linter::settings::{flags, LinterSettings};
-    use ruff_workspace::resolver::{PyprojectConfig, PyprojectDiscoveryStrategy};
+    use ruff_linter::settings::{LinterSettings, flags};
     use ruff_workspace::Settings;
+    use ruff_workspace::resolver::{PyprojectConfig, PyprojectDiscoveryStrategy};
 
     use crate::args::ConfigArguments;
 
@@ -282,9 +279,10 @@ mod test {
 
         TextEmitter::default()
             .with_show_fix_status(true)
+            .with_color(false)
             .emit(
                 &mut output,
-                &diagnostics.messages,
+                &diagnostics.inner,
                 &EmitterContext::new(&FxHashMap::default()),
             )
             .unwrap();

crates/ruff/src/commands/check_stdin.rs

@@ -1,13 +1,14 @@
 use std::path::Path;
 
 use anyhow::Result;
+use ruff_db::diagnostic::Diagnostic;
 use ruff_linter::package::PackageRoot;
 use ruff_linter::packaging;
 use ruff_linter::settings::flags;
-use ruff_workspace::resolver::{match_exclusion, python_file_at_path, PyprojectConfig, Resolver};
+use ruff_workspace::resolver::{PyprojectConfig, Resolver, match_exclusion, python_file_at_path};
 
 use crate::args::ConfigArguments;
-use crate::diagnostics::{lint_stdin, Diagnostics};
+use crate::diagnostics::{Diagnostics, lint_stdin};
 use crate::stdin::{parrot_stdin, read_from_stdin};
 
 /// Run the linter over a single file, read from `stdin`.
@@ -52,6 +53,8 @@ pub(crate) fn check_stdin(
         noqa,
         fix_mode,
     )?;
-    diagnostics.messages.sort_unstable();
+    diagnostics
+        .inner
+        .sort_unstable_by(Diagnostic::ruff_start_ordering);
     Ok(diagnostics)
 }

crates/ruff/src/commands/completions/config.rs

@@ -2,10 +2,8 @@ use clap::builder::{PossibleValue, TypedValueParser, ValueParserFactory};
 use itertools::Itertools;
 use std::str::FromStr;
 
-use ruff_workspace::{
-    options::Options,
-    options_base::{OptionField, OptionSet, OptionsMetadata, Visit},
-};
+use ruff_options_metadata::{OptionField, OptionSet, OptionsMetadata, Visit};
+use ruff_workspace::options::Options;
 
 #[derive(Default)]
 struct CollectOptionsVisitor {

crates/ruff/src/commands/config.rs

@@ -1,9 +1,9 @@
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 
 use crate::args::HelpFormat;
 
+use ruff_options_metadata::OptionsMetadata;
 use ruff_workspace::options::Options;
-use ruff_workspace::options_base::OptionsMetadata;
 
 #[expect(clippy::print_stdout)]
 pub(crate) fn config(key: Option<&str>, format: HelpFormat) -> Result<()> {

crates/ruff/src/commands/format.rs

@@ -1,7 +1,7 @@
 use std::fmt::{Display, Formatter};
 use std::fs::File;
 use std::io;
-use std::io::{stderr, stdout, Write};
+use std::io::{Write, stderr, stdout};
 use std::path::{Path, PathBuf};
 use std::time::Instant;
 
@@ -16,7 +16,7 @@ use rustc_hash::FxHashSet;
 use thiserror::Error;
 use tracing::debug;
 
-use ruff_db::panic::{catch_unwind, PanicError};
+use ruff_db::panic::{PanicError, catch_unwind};
 use ruff_diagnostics::SourceMap;
 use ruff_linter::fs;
 use ruff_linter::logging::{DisplayParseError, LogLevel};
@@ -26,16 +26,16 @@ use ruff_linter::rules::flake8_quotes::settings::Quote;
 use ruff_linter::source_kind::{SourceError, SourceKind};
 use ruff_linter::warn_user_once;
 use ruff_python_ast::{PySourceType, SourceType};
-use ruff_python_formatter::{format_module_source, format_range, FormatModuleError, QuoteStyle};
+use ruff_python_formatter::{FormatModuleError, QuoteStyle, format_module_source, format_range};
 use ruff_source_file::LineIndex;
 use ruff_text_size::{TextLen, TextRange, TextSize};
-use ruff_workspace::resolver::{match_exclusion, python_files_in_path, ResolvedFile, Resolver};
 use ruff_workspace::FormatterSettings;
+use ruff_workspace::resolver::{ResolvedFile, Resolver, match_exclusion, python_files_in_path};
 
 use crate::args::{ConfigArguments, FormatArguments, FormatRange};
 use crate::cache::{Cache, FileCacheKey, PackageCacheMap, PackageCaches};
 use crate::resolve::resolve;
-use crate::{resolve_default_files, ExitStatus};
+use crate::{ExitStatus, resolve_default_files};
 
 #[derive(Debug, Copy, Clone, is_macro::Is)]
 pub(crate) enum FormatMode {
@@ -821,9 +821,14 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
             .collect();
         rule_names.sort();
         if let [rule] = rule_names.as_slice() {
-            warn_user_once!("The following rule may cause conflicts when used with the formatter: {rule}. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `select` or `extend-select` configuration, or adding it to the `ignore` configuration.");
+            warn_user_once!(
+                "The following rule may cause conflicts when used with the formatter: {rule}. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `lint.select` or `lint.extend-select` configuration, or adding it to the `lint.ignore` configuration."
+            );
         } else {
-            warn_user_once!("The following rules may cause conflicts when used with the formatter: {}. To avoid unexpected behavior, we recommend disabling these rules, either by removing them from the `select` or `extend-select` configuration, or adding them to the `ignore` configuration.", rule_names.join(", "));
+            warn_user_once!(
+                "The following rules may cause conflicts when used with the formatter: {}. To avoid unexpected behavior, we recommend disabling these rules, either by removing them from the `lint.select` or `lint.extend-select` configuration, or adding them to the `lint.ignore` configuration.",
+                rule_names.join(", ")
+            );
         }
     }
 
@@ -833,7 +838,9 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
         if setting.linter.rules.enabled(Rule::TabIndentation)
             && setting.formatter.indent_style.is_tab()
         {
-            warn_user_once!("The `format.indent-style=\"tab\"` option is incompatible with `W191`, which lints against all uses of tabs. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`.");
+            warn_user_once!(
+                "The `format.indent-style=\"tab\"` option is incompatible with `W191`, which lints against all uses of tabs. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`."
+            );
         }
 
         if !setting
@@ -846,14 +853,18 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
                 .enabled(Rule::MultiLineImplicitStringConcatenation)
             && !setting.linter.flake8_implicit_str_concat.allow_multiline
         {
-            warn_user_once!("The `lint.flake8-implicit-str-concat.allow-multiline = false` option is incompatible with the formatter unless `ISC001` is enabled. We recommend enabling `ISC001` or setting `allow-multiline=true`.");
+            warn_user_once!(
+                "The `lint.flake8-implicit-str-concat.allow-multiline = false` option is incompatible with the formatter unless `ISC001` is enabled. We recommend enabling `ISC001` or setting `allow-multiline=true`."
+            );
         }
 
         // Validate all rules that rely on tab styles.
         if setting.linter.rules.enabled(Rule::DocstringTabIndentation)
             && setting.formatter.indent_style.is_tab()
         {
-            warn_user_once!("The `format.indent-style=\"tab\"` option is incompatible with `D206`, with requires space-based indentation. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`.");
+            warn_user_once!(
+                "The `format.indent-style=\"tab\"` option is incompatible with `D206`, with requires space-based indentation. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`."
+            );
         }
 
         // Validate all rules that rely on custom indent widths.
@@ -862,7 +873,9 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
             Rule::IndentationWithInvalidMultipleComment,
         ]) && setting.formatter.indent_width.value() != 4
         {
-            warn_user_once!("The `format.indent-width` option with a value other than 4 is incompatible with `E111` and `E114`. We recommend disabling these rules when using the formatter, which enforces a consistent indentation width. Alternatively, set the `format.indent-width` option to `4`.");
+            warn_user_once!(
+                "The `format.indent-width` option with a value other than 4 is incompatible with `E111` and `E114`. We recommend disabling these rules when using the formatter, which enforces a consistent indentation width. Alternatively, set the `format.indent-width` option to `4`."
+            );
         }
 
         // Validate all rules that rely on quote styles.
@@ -876,10 +889,14 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
                 setting.formatter.quote_style,
             ) {
                 (Quote::Double, QuoteStyle::Single) => {
-                    warn_user_once!("The `flake8-quotes.inline-quotes=\"double\"` option is incompatible with the formatter's `format.quote-style=\"single\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`.");
+                    warn_user_once!(
+                        "The `flake8-quotes.inline-quotes=\"double\"` option is incompatible with the formatter's `format.quote-style=\"single\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`."
+                    );
                 }
                 (Quote::Single, QuoteStyle::Double) => {
-                    warn_user_once!("The `flake8-quotes.inline-quotes=\"single\"` option is incompatible with the formatter's `format.quote-style=\"double\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`.");
+                    warn_user_once!(
+                        "The `flake8-quotes.inline-quotes=\"single\"` option is incompatible with the formatter's `format.quote-style=\"double\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`."
+                    );
                 }
                 _ => {}
             }
@@ -892,7 +909,9 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
                 QuoteStyle::Single | QuoteStyle::Double
             )
         {
-            warn_user_once!("The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q001` when using the formatter, which enforces double quotes for multiline strings. Alternatively, set the `flake8-quotes.multiline-quotes` option to `\"double\"`.`");
+            warn_user_once!(
+                "The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q001` when using the formatter, which enforces double quotes for multiline strings. Alternatively, set the `flake8-quotes.multiline-quotes` option to `\"double\"`.`"
+            );
         }
 
         if setting.linter.rules.enabled(Rule::BadQuotesDocstring)
@@ -902,7 +921,9 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
                 QuoteStyle::Single | QuoteStyle::Double
             )
         {
-            warn_user_once!("The `flake8-quotes.docstring-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q002` when using the formatter, which enforces double quotes for docstrings. Alternatively, set the `flake8-quotes.docstring-quotes` option to `\"double\"`.`");
+            warn_user_once!(
+                "The `flake8-quotes.docstring-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q002` when using the formatter, which enforces double quotes for docstrings. Alternatively, set the `flake8-quotes.docstring-quotes` option to `\"double\"`.`"
+            );
         }
 
         // Validate all isort settings.
@@ -910,12 +931,16 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
             // The formatter removes empty lines if the value is larger than 2 but always inserts a empty line after imports.
             // Two empty lines are okay because `isort` only uses this setting for top-level imports (not in nested blocks).
             if !matches!(setting.linter.isort.lines_after_imports, 1 | 2 | -1) {
-                warn_user_once!("The isort option `isort.lines-after-imports` with a value other than `-1`, `1` or `2` is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `2`, `1`, or `-1` (default).");
+                warn_user_once!(
+                    "The isort option `isort.lines-after-imports` with a value other than `-1`, `1` or `2` is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `2`, `1`, or `-1` (default)."
+                );
             }
 
             // Values larger than two get reduced to one line by the formatter if the import is in a nested block.
             if setting.linter.isort.lines_between_types > 1 {
-                warn_user_once!("The isort option `isort.lines-between-types` with a value greater than 1 is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `1` or `0` (default).");
+                warn_user_once!(
+                    "The isort option `isort.lines-between-types` with a value greater than 1 is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `1` or `0` (default)."
+                );
             }
 
             // isort inserts a trailing comma which the formatter preserves, but only if `skip-magic-trailing-comma` isn't false.
@@ -924,11 +949,15 @@ pub(super) fn warn_incompatible_formatter_settings(resolver: &Resolver) {
                 && !setting.linter.isort.force_single_line
             {
                 if setting.linter.isort.force_wrap_aliases {
-                    warn_user_once!("The isort option `isort.force-wrap-aliases` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.force-wrap-aliases=false` or `format.skip-magic-trailing-comma=false`.");
+                    warn_user_once!(
+                        "The isort option `isort.force-wrap-aliases` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.force-wrap-aliases=false` or `format.skip-magic-trailing-comma=false`."
+                    );
                 }
 
                 if setting.linter.isort.split_on_trailing_comma {
-                    warn_user_once!("The isort option `isort.split-on-trailing-comma` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.split-on-trailing-comma=false` or `format.skip-magic-trailing-comma=false`.");
+                    warn_user_once!(
+                        "The isort option `isort.split-on-trailing-comma` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.split-on-trailing-comma=false` or `format.skip-magic-trailing-comma=false`."
+                    );
                 }
             }
         }

crates/ruff/src/commands/format_stdin.rs

@@ -6,17 +6,17 @@ use log::error;
 
 use ruff_linter::source_kind::SourceKind;
 use ruff_python_ast::{PySourceType, SourceType};
-use ruff_workspace::resolver::{match_exclusion, python_file_at_path, Resolver};
 use ruff_workspace::FormatterSettings;
+use ruff_workspace::resolver::{Resolver, match_exclusion, python_file_at_path};
 
+use crate::ExitStatus;
 use crate::args::{ConfigArguments, FormatArguments, FormatRange};
 use crate::commands::format::{
-    format_source, warn_incompatible_formatter_settings, FormatCommandError, FormatMode,
-    FormatResult, FormattedSource,
+    FormatCommandError, FormatMode, FormatResult, FormattedSource, format_source,
+    warn_incompatible_formatter_settings,
 };
 use crate::resolve::resolve;
 use crate::stdin::{parrot_stdin, read_from_stdin};
-use crate::ExitStatus;
 
 /// Run the formatter over a single file, read from `stdin`.
 pub(crate) fn format_stdin(

crates/ruff/src/commands/rule.rs

@@ -6,7 +6,7 @@ use serde::ser::SerializeSeq;
 use serde::{Serialize, Serializer};
 use strum::IntoEnumIterator;
 
-use ruff_diagnostics::FixAvailability;
+use ruff_linter::FixAvailability;
 use ruff_linter::registry::{Linter, Rule, RuleNamespace};
 
 use crate::args::HelpFormat;
@@ -30,7 +30,7 @@ impl<'a> Explanation<'a> {
         let (linter, _) = Linter::parse_code(&code).unwrap();
         let fix = rule.fixable().to_string();
         Self {
-            name: rule.as_ref(),
+            name: rule.name().as_str(),
             code,
             linter: linter.name(),
             summary: rule.message_formats()[0],
@@ -44,7 +44,7 @@ impl<'a> Explanation<'a> {
 
 fn format_rule_text(rule: Rule) -> String {
     let mut output = String::new();
-    let _ = write!(&mut output, "# {} ({})", rule.as_ref(), rule.noqa_code());
+    let _ = write!(&mut output, "# {} ({})", rule.name(), rule.noqa_code());
     output.push('\n');
     output.push('\n');
 

crates/ruff/src/commands/server.rs

@@ -1,14 +1,7 @@
-use std::num::NonZeroUsize;
-
 use crate::ExitStatus;
 use anyhow::Result;
-use ruff_server::Server;
 
-pub(crate) fn run_server(
-    worker_threads: NonZeroUsize,
-    preview: Option<bool>,
-) -> Result<ExitStatus> {
-    let server = Server::new(worker_threads, preview)?;
-
-    server.run().map(|()| ExitStatus::Success)
+pub(crate) fn run_server(preview: Option<bool>) -> Result<ExitStatus> {
+    ruff_server::run(preview)?;
+    Ok(ExitStatus::Success)
 }

crates/ruff/src/commands/show_files.rs

@@ -5,7 +5,7 @@ use anyhow::Result;
 use itertools::Itertools;
 
 use ruff_linter::warn_user_once;
-use ruff_workspace::resolver::{python_files_in_path, PyprojectConfig, ResolvedFile};
+use ruff_workspace::resolver::{PyprojectConfig, ResolvedFile, python_files_in_path};
 
 use crate::args::ConfigArguments;
 

crates/ruff/src/commands/show_settings.rs

@@ -1,10 +1,10 @@
 use std::io::Write;
 use std::path::PathBuf;
 
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 use itertools::Itertools;
 
-use ruff_workspace::resolver::{python_files_in_path, PyprojectConfig, ResolvedFile};
+use ruff_workspace::resolver::{PyprojectConfig, ResolvedFile, python_files_in_path};
 
 use crate::args::ConfigArguments;
 

crates/ruff/src/diagnostics.rs

@@ -10,40 +10,39 @@ use std::path::Path;
 use anyhow::{Context, Result};
 use colored::Colorize;
 use log::{debug, warn};
-use rustc_hash::FxHashMap;
-
-use ruff_diagnostics::Diagnostic;
+use ruff_db::diagnostic::Diagnostic;
 use ruff_linter::codes::Rule;
-use ruff_linter::linter::{lint_fix, lint_only, FixTable, FixerResult, LinterResult, ParseSource};
-use ruff_linter::message::{Message, SyntaxErrorMessage};
+use ruff_linter::linter::{FixTable, FixerResult, LinterResult, ParseSource, lint_fix, lint_only};
+use ruff_linter::message::create_syntax_error_diagnostic;
 use ruff_linter::package::PackageRoot;
 use ruff_linter::pyproject_toml::lint_pyproject_toml;
 use ruff_linter::settings::types::UnsafeFixes;
-use ruff_linter::settings::{flags, LinterSettings};
+use ruff_linter::settings::{LinterSettings, flags};
 use ruff_linter::source_kind::{SourceError, SourceKind};
-use ruff_linter::{fs, IOError};
+use ruff_linter::{IOError, Violation, fs};
 use ruff_notebook::{Notebook, NotebookError, NotebookIndex};
 use ruff_python_ast::{PySourceType, SourceType, TomlSourceType};
 use ruff_source_file::SourceFileBuilder;
-use ruff_text_size::{TextRange, TextSize};
+use ruff_text_size::TextRange;
 use ruff_workspace::Settings;
+use rustc_hash::FxHashMap;
 
 use crate::cache::{Cache, FileCacheKey, LintCacheData};
 
 #[derive(Debug, Default, PartialEq)]
 pub(crate) struct Diagnostics {
-    pub(crate) messages: Vec<Message>,
+    pub(crate) inner: Vec<Diagnostic>,
     pub(crate) fixed: FixMap,
     pub(crate) notebook_indexes: FxHashMap<String, NotebookIndex>,
 }
 
 impl Diagnostics {
     pub(crate) fn new(
-        messages: Vec<Message>,
+        diagnostics: Vec<Diagnostic>,
         notebook_indexes: FxHashMap<String, NotebookIndex>,
     ) -> Self {
         Self {
-            messages,
+            inner: diagnostics,
             fixed: FixMap::default(),
             notebook_indexes,
         }
@@ -63,16 +62,12 @@ impl Diagnostics {
                     let name = path.map_or_else(|| "-".into(), Path::to_string_lossy);
                     let source_file = SourceFileBuilder::new(name, "").finish();
                     Self::new(
-                        vec![Message::from_diagnostic(
-                            Diagnostic::new(
-                                IOError {
-                                    message: err.to_string(),
-                                },
-                                TextRange::default(),
-                            ),
-                            source_file,
-                            TextSize::default(),
-                        )],
+                        vec![
+                            IOError {
+                                message: err.to_string(),
+                            }
+                            .into_diagnostic(TextRange::default(), &source_file),
+                        ],
                         FxHashMap::default(),
                     )
                 } else {
@@ -102,11 +97,11 @@ impl Diagnostics {
                 let name = path.map_or_else(|| "-".into(), Path::to_string_lossy);
                 let dummy = SourceFileBuilder::new(name, "").finish();
                 Self::new(
-                    vec![Message::SyntaxError(SyntaxErrorMessage {
-                        message: err.to_string(),
-                        range: TextRange::default(),
-                        file: dummy,
-                    })],
+                    vec![create_syntax_error_diagnostic(
+                        dummy,
+                        err,
+                        TextRange::default(),
+                    )],
                     FxHashMap::default(),
                 )
             }
@@ -125,7 +120,7 @@ impl Add for Diagnostics {
 
 impl AddAssign for Diagnostics {
     fn add_assign(&mut self, other: Self) {
-        self.messages.extend(other.messages);
+        self.inner.extend(other.inner);
         self.fixed += other.fixed;
         self.notebook_indexes.extend(other.notebook_indexes);
     }
@@ -169,9 +164,9 @@ impl AddAssign for FixMap {
                 continue;
             }
             let fixed_in_file = self.0.entry(filename).or_default();
-            for (rule, count) in fixed {
+            for (rule, name, count) in fixed.iter() {
                 if count > 0 {
-                    *fixed_in_file.entry(rule).or_default() += count;
+                    *fixed_in_file.entry(rule).or_default(name) += count;
                 }
             }
         }
@@ -206,7 +201,7 @@ pub(crate) fn lint_path(
                 if match fix_mode {
                     flags::FixMode::Generate => true,
                     flags::FixMode::Apply | flags::FixMode::Diff => {
-                        diagnostics.messages.is_empty() && diagnostics.fixed.is_empty()
+                        diagnostics.inner.is_empty() && diagnostics.fixed.is_empty()
                     }
                 } {
                     return Ok(diagnostics);
@@ -226,7 +221,7 @@ pub(crate) fn lint_path(
         Some(source_type) => source_type,
         None => match SourceType::from(path) {
             SourceType::Toml(TomlSourceType::Pyproject) => {
-                let messages = if settings
+                let diagnostics = if settings
                     .rules
                     .iter_enabled()
                     .any(|rule_code| rule_code.lint_source().is_pyproject_toml())
@@ -239,12 +234,12 @@ pub(crate) fn lint_path(
                     };
                     let source_file =
                         SourceFileBuilder::new(path.to_string_lossy(), contents).finish();
-                    lint_pyproject_toml(source_file, settings)
+                    lint_pyproject_toml(&source_file, settings)
                 } else {
                     vec![]
                 };
                 return Ok(Diagnostics {
-                    messages,
+                    inner: diagnostics,
                     ..Diagnostics::default()
                 });
             }
@@ -309,7 +304,7 @@ pub(crate) fn lint_path(
                     ParseSource::None,
                 );
                 let transformed = source_kind;
-                let fixed = FxHashMap::default();
+                let fixed = FixTable::default();
                 (result, transformed, fixed)
             }
         } else {
@@ -323,12 +318,12 @@ pub(crate) fn lint_path(
                 ParseSource::None,
             );
             let transformed = source_kind;
-            let fixed = FxHashMap::default();
+            let fixed = FixTable::default();
             (result, transformed, fixed)
         };
 
     let has_error = result.has_syntax_errors();
-    let messages = result.messages;
+    let diagnostics = result.diagnostics;
 
     if let Some((cache, relative_path, key)) = caching {
         // We don't cache parsing errors.
@@ -339,14 +334,14 @@ pub(crate) fn lint_path(
             if match fix_mode {
                 flags::FixMode::Generate => true,
                 flags::FixMode::Apply | flags::FixMode::Diff => {
-                    messages.is_empty() && fixed.is_empty()
+                    diagnostics.is_empty() && fixed.is_empty()
                 }
             } {
                 cache.update_lint(
                     relative_path.to_owned(),
                     &key,
-                    LintCacheData::from_messages(
-                        &messages,
+                    LintCacheData::from_diagnostics(
+                        &diagnostics,
                         transformed.as_ipy_notebook().map(Notebook::index).cloned(),
                     ),
                 );
@@ -361,7 +356,7 @@ pub(crate) fn lint_path(
     };
 
     Ok(Diagnostics {
-        messages,
+        inner: diagnostics,
         fixed: FixMap::from_iter([(fs::relativize_path(path), fixed)]),
         notebook_indexes,
     })
@@ -400,7 +395,7 @@ pub(crate) fn lint_stdin(
                 }
 
                 return Ok(Diagnostics {
-                    messages: lint_pyproject_toml(source_file, &settings.linter),
+                    inner: lint_pyproject_toml(&source_file, &settings.linter),
                     fixed: FixMap::from_iter([(fs::relativize_path(path), FixTable::default())]),
                     notebook_indexes: FxHashMap::default(),
                 });
@@ -421,7 +416,7 @@ pub(crate) fn lint_stdin(
     };
 
     // Lint the inputs.
-    let (LinterResult { messages, .. }, transformed, fixed) =
+    let (LinterResult { diagnostics, .. }, transformed, fixed) =
         if matches!(fix_mode, flags::FixMode::Apply | flags::FixMode::Diff) {
             if let Ok(FixerResult {
                 result,
@@ -477,7 +472,7 @@ pub(crate) fn lint_stdin(
                 }
 
                 let transformed = source_kind;
-                let fixed = FxHashMap::default();
+                let fixed = FixTable::default();
                 (result, transformed, fixed)
             }
         } else {
@@ -491,7 +486,7 @@ pub(crate) fn lint_stdin(
                 ParseSource::None,
             );
             let transformed = source_kind;
-            let fixed = FxHashMap::default();
+            let fixed = FixTable::default();
             (result, transformed, fixed)
         };
 
@@ -505,7 +500,7 @@ pub(crate) fn lint_stdin(
     };
 
     Ok(Diagnostics {
-        messages,
+        inner: diagnostics,
         fixed: FixMap::from_iter([(
             fs::relativize_path(path.unwrap_or_else(|| Path::new("-"))),
             fixed,

crates/ruff/src/lib.rs

@@ -1,8 +1,7 @@
 #![allow(clippy::print_stdout)]
 
 use std::fs::File;
-use std::io::{self, stdout, BufWriter, Write};
-use std::num::NonZeroUsize;
+use std::io::{self, BufWriter, Write, stdout};
 use std::path::{Path, PathBuf};
 use std::process::ExitCode;
 use std::sync::mpsc::channel;
@@ -11,10 +10,10 @@ use anyhow::Result;
 use clap::CommandFactory;
 use colored::Colorize;
 use log::warn;
-use notify::{recommended_watcher, RecursiveMode, Watcher};
+use notify::{RecursiveMode, Watcher, recommended_watcher};
 
 use args::{GlobalConfigArgs, ServerCommand};
-use ruff_linter::logging::{set_up_logging, LogLevel};
+use ruff_linter::logging::{LogLevel, set_up_logging};
 use ruff_linter::settings::flags::FixMode;
 use ruff_linter::settings::types::OutputFormat;
 use ruff_linter::{fs, warn_user, warn_user_once};
@@ -132,6 +131,7 @@ pub fn run(
     }: Args,
 ) -> Result<ExitStatus> {
     {
+        ruff_db::set_program_version(crate::version::version().to_string()).unwrap();
         let default_panic_hook = std::panic::take_hook();
         std::panic::set_hook(Box::new(move |info| {
             #[expect(clippy::print_stderr)]
@@ -223,13 +223,7 @@ fn analyze_graph(
 }
 
 fn server(args: ServerCommand) -> Result<ExitStatus> {
-    let four = NonZeroUsize::new(4).unwrap();
-
-    // by default, we set the number of worker threads to `num_cpus`, with a maximum of 4.
-    let worker_threads = std::thread::available_parallelism()
-        .unwrap_or(four)
-        .min(four);
-    commands::server::run_server(worker_threads, args.resolve_preview())
+    commands::server::run_server(args.resolve_preview())
 }
 
 pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<ExitStatus> {
@@ -370,7 +364,7 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
         Printer::clear_screen()?;
         printer.write_to_user("Starting linter in watch mode...\n");
 
-        let messages = commands::check::check(
+        let diagnostics = commands::check::check(
             &files,
             &pyproject_config,
             &config_arguments,
@@ -379,7 +373,7 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
             fix_mode,
             unsafe_fixes,
         )?;
-        printer.write_continuously(&mut writer, &messages, preview)?;
+        printer.write_continuously(&mut writer, &diagnostics, preview)?;
 
         // In watch mode, we may need to re-resolve the configuration.
         // TODO(charlie): Re-compute other derivative values, like the `printer`.
@@ -399,7 +393,7 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
                     Printer::clear_screen()?;
                     printer.write_to_user("File change detected...\n");
 
-                    let messages = commands::check::check(
+                    let diagnostics = commands::check::check(
                         &files,
                         &pyproject_config,
                         &config_arguments,
@@ -408,7 +402,7 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
                         fix_mode,
                         unsafe_fixes,
                     )?;
-                    printer.write_continuously(&mut writer, &messages, preview)?;
+                    printer.write_continuously(&mut writer, &diagnostics, preview)?;
                 }
                 Err(err) => return Err(err.into()),
             }
@@ -446,7 +440,7 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
         if cli.statistics {
             printer.write_statistics(&diagnostics, &mut summary_writer)?;
         } else {
-            printer.write_once(&diagnostics, &mut summary_writer)?;
+            printer.write_once(&diagnostics, &mut summary_writer, preview)?;
         }
 
         if !cli.exit_zero {
@@ -470,11 +464,11 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
                 // there are any violations, unless we're explicitly asked to exit zero on
                 // fix.
                 if cli.exit_non_zero_on_fix {
-                    if !diagnostics.fixed.is_empty() || !diagnostics.messages.is_empty() {
+                    if !diagnostics.fixed.is_empty() || !diagnostics.inner.is_empty() {
                         return Ok(ExitStatus::Failure);
                     }
                 } else {
-                    if !diagnostics.messages.is_empty() {
+                    if !diagnostics.inner.is_empty() {
                         return Ok(ExitStatus::Failure);
                     }
                 }
@@ -488,7 +482,7 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
 mod test_file_change_detector {
     use std::path::PathBuf;
 
-    use crate::{change_detected, ChangeKind};
+    use crate::{ChangeKind, change_detected};
 
     #[test]
     fn detect_correct_file_change() {

crates/ruff/src/main.rs

@@ -5,7 +5,7 @@ use clap::Parser;
 use colored::Colorize;
 
 use ruff::args::Args;
-use ruff::{run, ExitStatus};
+use ruff::{ExitStatus, run};
 
 #[cfg(target_os = "windows")]
 #[global_allocator]
@@ -15,6 +15,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
     not(target_os = "windows"),
     not(target_os = "openbsd"),
     not(target_os = "aix"),
+    not(target_os = "android"),
     any(
         target_arch = "x86_64",
         target_arch = "aarch64",

crates/ruff/src/printer.rs

@@ -1,23 +1,24 @@
 use std::cmp::Reverse;
-use std::fmt::Display;
 use std::hash::Hash;
 use std::io::Write;
 
 use anyhow::Result;
 use bitflags::bitflags;
 use colored::Colorize;
-use itertools::{iterate, Itertools};
+use itertools::{Itertools, iterate};
+use ruff_linter::linter::FixTable;
 use serde::Serialize;
 
+use ruff_db::diagnostic::{
+    Diagnostic, DiagnosticFormat, DisplayDiagnosticConfig, DisplayDiagnostics, SecondaryCode,
+};
 use ruff_linter::fs::relativize_path;
 use ruff_linter::logging::LogLevel;
 use ruff_linter::message::{
-    AzureEmitter, Emitter, EmitterContext, GithubEmitter, GitlabEmitter, GroupedEmitter,
-    JsonEmitter, JsonLinesEmitter, JunitEmitter, Message, MessageKind, PylintEmitter,
-    RdjsonEmitter, SarifEmitter, TextEmitter,
+    Emitter, EmitterContext, GithubEmitter, GitlabEmitter, GroupedEmitter, SarifEmitter,
+    TextEmitter,
 };
 use ruff_linter::notify_user;
-use ruff_linter::registry::Rule;
 use ruff_linter::settings::flags::{self};
 use ruff_linter::settings::types::{OutputFormat, UnsafeFixes};
 
@@ -36,60 +37,13 @@ bitflags! {
 }
 
 #[derive(Serialize)]
-struct ExpandedStatistics {
-    code: Option<SerializeRuleAsCode>,
-    name: SerializeMessageKindAsTitle,
+struct ExpandedStatistics<'a> {
+    code: Option<&'a SecondaryCode>,
+    name: &'static str,
     count: usize,
     fixable: bool,
 }
 
-#[derive(Copy, Clone)]
-struct SerializeRuleAsCode(Rule);
-
-impl Serialize for SerializeRuleAsCode {
-    fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
-    where
-        S: serde::Serializer,
-    {
-        serializer.serialize_str(&self.0.noqa_code().to_string())
-    }
-}
-
-impl Display for SerializeRuleAsCode {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}", self.0.noqa_code())
-    }
-}
-
-impl From<Rule> for SerializeRuleAsCode {
-    fn from(rule: Rule) -> Self {
-        Self(rule)
-    }
-}
-
-struct SerializeMessageKindAsTitle(MessageKind);
-
-impl Serialize for SerializeMessageKindAsTitle {
-    fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
-    where
-        S: serde::Serializer,
-    {
-        serializer.serialize_str(self.0.as_str())
-    }
-}
-
-impl Display for SerializeMessageKindAsTitle {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_str(self.0.as_str())
-    }
-}
-
-impl From<MessageKind> for SerializeMessageKindAsTitle {
-    fn from(kind: MessageKind) -> Self {
-        Self(kind)
-    }
-}
-
 pub(crate) struct Printer {
     format: OutputFormat,
     log_level: LogLevel,
@@ -128,11 +82,11 @@ impl Printer {
             let fixed = diagnostics
                 .fixed
                 .values()
-                .flat_map(std::collections::HashMap::values)
+                .flat_map(FixTable::counts)
                 .sum::<usize>();
 
             if self.flags.intersects(Flags::SHOW_VIOLATIONS) {
-                let remaining = diagnostics.messages.len();
+                let remaining = diagnostics.inner.len();
                 let total = fixed + remaining;
                 if fixed > 0 {
                     let s = if total == 1 { "" } else { "s" };
@@ -157,7 +111,8 @@ impl Printer {
                             } else {
                                 "es"
                             };
-                            writeln!(writer,
+                            writeln!(
+                                writer,
                                 "{fix_prefix} {} fixable with the `--fix` option ({} hidden fix{es} can be enabled with the `--unsafe-fixes` option).",
                                 fixables.applicable, fixables.inapplicable_unsafe
                             )?;
@@ -175,7 +130,8 @@ impl Printer {
                             } else {
                                 "es"
                             };
-                            writeln!(writer,
+                            writeln!(
+                                writer,
                                 "No fixes available ({} hidden fix{es} can be enabled with the `--unsafe-fixes` option).",
                                 fixables.inapplicable_unsafe
                             )?;
@@ -205,15 +161,27 @@ impl Printer {
                     if fixed > 0 {
                         let s = if fixed == 1 { "" } else { "s" };
                         if self.fix_mode.is_apply() {
-                            writeln!(writer, "Fixed {fixed} error{s} ({unapplied} additional fix{es} available with `--unsafe-fixes`).")?;
+                            writeln!(
+                                writer,
+                                "Fixed {fixed} error{s} ({unapplied} additional fix{es} available with `--unsafe-fixes`)."
+                            )?;
                         } else {
-                            writeln!(writer, "Would fix {fixed} error{s} ({unapplied} additional fix{es} available with `--unsafe-fixes`).")?;
+                            writeln!(
+                                writer,
+                                "Would fix {fixed} error{s} ({unapplied} additional fix{es} available with `--unsafe-fixes`)."
+                            )?;
                         }
                     } else {
                         if self.fix_mode.is_apply() {
-                            writeln!(writer, "No errors fixed ({unapplied} fix{es} available with `--unsafe-fixes`).")?;
+                            writeln!(
+                                writer,
+                                "No errors fixed ({unapplied} fix{es} available with `--unsafe-fixes`)."
+                            )?;
                         } else {
-                            writeln!(writer, "No errors would be fixed ({unapplied} fix{es} available with `--unsafe-fixes`).")?;
+                            writeln!(
+                                writer,
+                                "No errors would be fixed ({unapplied} fix{es} available with `--unsafe-fixes`)."
+                            )?;
                         }
                     }
                 } else {
@@ -235,6 +203,7 @@ impl Printer {
         &self,
         diagnostics: &Diagnostics,
         writer: &mut dyn Write,
+        preview: bool,
     ) -> Result<()> {
         if matches!(self.log_level, LogLevel::Silent) {
             return Ok(());
@@ -262,16 +231,32 @@ impl Printer {
 
         match self.format {
             OutputFormat::Json => {
-                JsonEmitter.emit(writer, &diagnostics.messages, &context)?;
+                let config = DisplayDiagnosticConfig::default()
+                    .format(DiagnosticFormat::Json)
+                    .preview(preview);
+                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
+                write!(writer, "{value}")?;
             }
             OutputFormat::Rdjson => {
-                RdjsonEmitter.emit(writer, &diagnostics.messages, &context)?;
+                let config = DisplayDiagnosticConfig::default()
+                    .format(DiagnosticFormat::Rdjson)
+                    .preview(preview);
+                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
+                write!(writer, "{value}")?;
             }
             OutputFormat::JsonLines => {
-                JsonLinesEmitter.emit(writer, &diagnostics.messages, &context)?;
+                let config = DisplayDiagnosticConfig::default()
+                    .format(DiagnosticFormat::JsonLines)
+                    .preview(preview);
+                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
+                write!(writer, "{value}")?;
             }
             OutputFormat::Junit => {
-                JunitEmitter.emit(writer, &diagnostics.messages, &context)?;
+                let config = DisplayDiagnosticConfig::default()
+                    .format(DiagnosticFormat::Junit)
+                    .preview(preview);
+                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
+                write!(writer, "{value}")?;
             }
             OutputFormat::Concise | OutputFormat::Full => {
                 TextEmitter::default()
@@ -279,7 +264,8 @@ impl Printer {
                     .with_show_fix_diff(self.flags.intersects(Flags::SHOW_FIX_DIFF))
                     .with_show_source(self.format == OutputFormat::Full)
                     .with_unsafe_fixes(self.unsafe_fixes)
-                    .emit(writer, &diagnostics.messages, &context)?;
+                    .with_preview(preview)
+                    .emit(writer, &diagnostics.inner, &context)?;
 
                 if self.flags.intersects(Flags::SHOW_FIX_SUMMARY) {
                     if !diagnostics.fixed.is_empty() {
@@ -295,7 +281,7 @@ impl Printer {
                 GroupedEmitter::default()
                     .with_show_fix_status(show_fix_status(self.fix_mode, fixables.as_ref()))
                     .with_unsafe_fixes(self.unsafe_fixes)
-                    .emit(writer, &diagnostics.messages, &context)?;
+                    .emit(writer, &diagnostics.inner, &context)?;
 
                 if self.flags.intersects(Flags::SHOW_FIX_SUMMARY) {
                     if !diagnostics.fixed.is_empty() {
@@ -307,19 +293,27 @@ impl Printer {
                 self.write_summary_text(writer, diagnostics)?;
             }
             OutputFormat::Github => {
-                GithubEmitter.emit(writer, &diagnostics.messages, &context)?;
+                GithubEmitter.emit(writer, &diagnostics.inner, &context)?;
             }
             OutputFormat::Gitlab => {
-                GitlabEmitter::default().emit(writer, &diagnostics.messages, &context)?;
+                GitlabEmitter::default().emit(writer, &diagnostics.inner, &context)?;
             }
             OutputFormat::Pylint => {
-                PylintEmitter.emit(writer, &diagnostics.messages, &context)?;
+                let config = DisplayDiagnosticConfig::default()
+                    .format(DiagnosticFormat::Pylint)
+                    .preview(preview);
+                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
+                write!(writer, "{value}")?;
             }
             OutputFormat::Azure => {
-                AzureEmitter.emit(writer, &diagnostics.messages, &context)?;
+                let config = DisplayDiagnosticConfig::default()
+                    .format(DiagnosticFormat::Azure)
+                    .preview(preview);
+                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
+                write!(writer, "{value}")?;
             }
             OutputFormat::Sarif => {
-                SarifEmitter.emit(writer, &diagnostics.messages, &context)?;
+                SarifEmitter.emit(writer, &diagnostics.inner, &context)?;
             }
         }
 
@@ -334,23 +328,27 @@ impl Printer {
         writer: &mut dyn Write,
     ) -> Result<()> {
         let statistics: Vec<ExpandedStatistics> = diagnostics
-            .messages
+            .inner
             .iter()
-            .sorted_by_key(|message| (message.rule(), message.fixable()))
-            .fold(vec![], |mut acc: Vec<(&Message, usize)>, message| {
-                if let Some((prev_message, count)) = acc.last_mut() {
-                    if prev_message.rule() == message.rule() {
-                        *count += 1;
-                        return acc;
+            .map(|message| (message.secondary_code(), message))
+            .sorted_by_key(|(code, message)| (*code, message.fixable()))
+            .fold(
+                vec![],
+                |mut acc: Vec<((Option<&SecondaryCode>, &Diagnostic), usize)>, (code, message)| {
+                    if let Some(((prev_code, _prev_message), count)) = acc.last_mut() {
+                        if *prev_code == code {
+                            *count += 1;
+                            return acc;
+                        }
                     }
-                }
-                acc.push((message, 1));
-                acc
-            })
+                    acc.push(((code, message), 1));
+                    acc
+                },
+            )
             .iter()
-            .map(|&(message, count)| ExpandedStatistics {
-                code: message.rule().map(std::convert::Into::into),
-                name: message.kind().into(),
+            .map(|&((code, message), count)| ExpandedStatistics {
+                code,
+                name: message.name(),
                 count,
                 fixable: if let Some(fix) = message.fix() {
                     fix.applies(self.unsafe_fixes.required_applicability())
@@ -378,12 +376,7 @@ impl Printer {
                 );
                 let code_width = statistics
                     .iter()
-                    .map(|statistic| {
-                        statistic
-                            .code
-                            .map_or_else(String::new, |rule| rule.to_string())
-                            .len()
-                    })
+                    .map(|statistic| statistic.code.map_or(0, |s| s.len()))
                     .max()
                     .unwrap();
                 let any_fixable = statistics.iter().any(|statistic| statistic.fixable);
@@ -399,7 +392,8 @@ impl Printer {
                         statistic.count.to_string().bold(),
                         statistic
                             .code
-                            .map_or_else(String::new, |rule| rule.to_string())
+                            .map(SecondaryCode::as_str)
+                            .unwrap_or_default()
                             .red()
                             .bold(),
                         if any_fixable {
@@ -445,20 +439,20 @@ impl Printer {
         }
 
         if self.log_level >= LogLevel::Default {
-            let s = if diagnostics.messages.len() == 1 {
+            let s = if diagnostics.inner.len() == 1 {
                 ""
             } else {
                 "s"
             };
             notify_user!(
                 "Found {} error{s}. Watching for file changes.",
-                diagnostics.messages.len()
+                diagnostics.inner.len()
             );
         }
 
         let fixables = FixableStatistics::try_from(diagnostics, self.unsafe_fixes);
 
-        if !diagnostics.messages.is_empty() {
+        if !diagnostics.inner.is_empty() {
             if self.log_level >= LogLevel::Default {
                 writeln!(writer)?;
             }
@@ -468,7 +462,7 @@ impl Printer {
                 .with_show_fix_status(show_fix_status(self.fix_mode, fixables.as_ref()))
                 .with_show_source(preview)
                 .with_unsafe_fixes(self.unsafe_fixes)
-                .emit(writer, &diagnostics.messages, &context)?;
+                .emit(writer, &diagnostics.inner, &context)?;
         }
         writer.flush()?;
 
@@ -502,13 +496,13 @@ fn show_fix_status(fix_mode: flags::FixMode, fixables: Option<&FixableStatistics
 fn print_fix_summary(writer: &mut dyn Write, fixed: &FixMap) -> Result<()> {
     let total = fixed
         .values()
-        .map(|table| table.values().sum::<usize>())
+        .map(|table| table.counts().sum::<usize>())
         .sum::<usize>();
     assert!(total > 0);
     let num_digits = num_digits(
-        *fixed
+        fixed
             .values()
-            .filter_map(|table| table.values().max())
+            .filter_map(|table| table.counts().max())
             .max()
             .unwrap(),
     );
@@ -528,12 +522,11 @@ fn print_fix_summary(writer: &mut dyn Write, fixed: &FixMap) -> Result<()> {
             relativize_path(filename).bold(),
             ":".cyan()
         )?;
-        for (rule, count) in table.iter().sorted_by_key(|(.., count)| Reverse(*count)) {
+        for (code, name, count) in table.iter().sorted_by_key(|(.., count)| Reverse(*count)) {
             writeln!(
                 writer,
-                "    {count:>num_digits$} × {} ({})",
-                rule.noqa_code().to_string().red().bold(),
-                rule.as_ref(),
+                "    {count:>num_digits$} × {code} ({name})",
+                code = code.to_string().red().bold(),
             )?;
         }
     }
@@ -552,7 +545,7 @@ impl FixableStatistics {
         let mut applicable = 0;
         let mut inapplicable_unsafe = 0;
 
-        for message in &diagnostics.messages {
+        for message in &diagnostics.inner {
             if let Some(fix) = message.fix() {
                 if fix.applies(unsafe_fixes.required_applicability()) {
                     applicable += 1;

crates/ruff/src/resolve.rs

@@ -1,14 +1,14 @@
 use std::path::Path;
 
-use anyhow::{bail, Result};
+use anyhow::{Result, bail};
 use log::debug;
 use path_absolutize::path_dedot;
 
 use ruff_workspace::configuration::Configuration;
 use ruff_workspace::pyproject::{self, find_fallback_target_version};
 use ruff_workspace::resolver::{
-    resolve_root_settings, ConfigurationOrigin, ConfigurationTransformer, PyprojectConfig,
-    PyprojectDiscoveryStrategy,
+    ConfigurationOrigin, ConfigurationTransformer, PyprojectConfig, PyprojectDiscoveryStrategy,
+    resolve_root_settings,
 };
 
 use ruff_python_ast as ast;

crates/ruff/tests/analyze_graph.rs

@@ -17,6 +17,7 @@ fn command() -> Command {
     command.arg("analyze");
     command.arg("graph");
     command.arg("--preview");
+    command.env_clear();
     command
 }
 
@@ -56,33 +57,40 @@ fn dependencies() -> Result<()> {
         .write_str(indoc::indoc! {r#"
         def f(): pass
     "#})?;
+    root.child("ruff")
+        .child("e.pyi")
+        .write_str(indoc::indoc! {r#"
+        def f() -> None: ...
+    "#})?;
 
     insta::with_settings!({
         filters => INSTA_FILTERS.to_vec(),
     }, {
-        assert_cmd_snapshot!(command().current_dir(&root), @r###"
-            success: true
-            exit_code: 0
-            ----- stdout -----
-            {
-              "ruff/__init__.py": [],
-              "ruff/a.py": [
-                "ruff/b.py"
-              ],
-              "ruff/b.py": [
-                "ruff/c.py"
-              ],
-              "ruff/c.py": [
-                "ruff/d.py"
-              ],
-              "ruff/d.py": [
-                "ruff/e.py"
-              ],
-              "ruff/e.py": []
-            }
+        assert_cmd_snapshot!(command().current_dir(&root), @r#"
+        success: true
+        exit_code: 0
+        ----- stdout -----
+        {
+          "ruff/__init__.py": [],
+          "ruff/a.py": [
+            "ruff/b.py"
+          ],
+          "ruff/b.py": [
+            "ruff/c.py"
+          ],
+          "ruff/c.py": [
+            "ruff/d.py"
+          ],
+          "ruff/d.py": [
+            "ruff/e.py",
+            "ruff/e.pyi"
+          ],
+          "ruff/e.py": [],
+          "ruff/e.pyi": []
+        }
 
-            ----- stderr -----
-            "###);
+        ----- stderr -----
+        "#);
     });
 
     Ok(())
@@ -196,23 +204,43 @@ fn string_detection() -> Result<()> {
     insta::with_settings!({
         filters => INSTA_FILTERS.to_vec(),
     }, {
-        assert_cmd_snapshot!(command().arg("--detect-string-imports").current_dir(&root), @r###"
-            success: true
-            exit_code: 0
-            ----- stdout -----
-            {
-              "ruff/__init__.py": [],
-              "ruff/a.py": [
-                "ruff/b.py"
-              ],
-              "ruff/b.py": [
-                "ruff/c.py"
-              ],
-              "ruff/c.py": []
-            }
+        assert_cmd_snapshot!(command().arg("--detect-string-imports").current_dir(&root), @r#"
+        success: true
+        exit_code: 0
+        ----- stdout -----
+        {
+          "ruff/__init__.py": [],
+          "ruff/a.py": [
+            "ruff/b.py"
+          ],
+          "ruff/b.py": [],
+          "ruff/c.py": []
+        }
 
-            ----- stderr -----
-            "###);
+        ----- stderr -----
+        "#);
+    });
+
+    insta::with_settings!({
+        filters => INSTA_FILTERS.to_vec(),
+    }, {
+        assert_cmd_snapshot!(command().arg("--detect-string-imports").arg("--min-dots").arg("1").current_dir(&root), @r#"
+        success: true
+        exit_code: 0
+        ----- stdout -----
+        {
+          "ruff/__init__.py": [],
+          "ruff/a.py": [
+            "ruff/b.py"
+          ],
+          "ruff/b.py": [
+            "ruff/c.py"
+          ],
+          "ruff/c.py": []
+        }
+
+        ----- stderr -----
+        "#);
     });
 
     Ok(())
@@ -565,8 +593,8 @@ fn venv() -> Result<()> {
 
         ----- stderr -----
         ruff failed
-          Cause: Invalid search path settings
-          Cause: Failed to discover the site-packages directory: Invalid `--python` argument: `none` could not be canonicalized
+          Cause: Invalid `--python` argument `none`: does not point to a Python executable or a directory on disk
+          Cause: No such file or directory (os error 2)
         ");
     });
 

crates/ruff/tests/format.rs

@@ -120,7 +120,7 @@ fn nonexistent_config_file() {
 #[test]
 fn config_override_rejected_if_invalid_toml() {
     assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
-        .args(["format", "--config", "foo = bar", "."]), @r#"
+        .args(["format", "--config", "foo = bar", "."]), @r"
     success: false
     exit_code: 2
     ----- stdout -----
@@ -137,12 +137,11 @@ fn config_override_rejected_if_invalid_toml() {
     TOML parse error at line 1, column 7
       |
     1 | foo = bar
-      |       ^
-    invalid string
-    expected `"`, `'`
+      |       ^^^
+    string values must be quoted, expected literal string
 
     For more information, try '--help'.
-    "#);
+    ");
 }
 
 #[test]
@@ -862,7 +861,7 @@ if condition:
     	print('Should change quotes')
 
     ----- stderr -----
-    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `select` or `extend-select` configuration, or adding it to the `ignore` configuration.
+    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `lint.select` or `lint.extend-select` configuration, or adding it to the `lint.ignore` configuration.
     "#);
     Ok(())
 }
@@ -999,7 +998,7 @@ def say_hy(name: str):
     1 file reformatted
 
     ----- stderr -----
-    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `select` or `extend-select` configuration, or adding it to the `ignore` configuration.
+    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `lint.select` or `lint.extend-select` configuration, or adding it to the `lint.ignore` configuration.
     warning: The `format.indent-style="tab"` option is incompatible with `W191`, which lints against all uses of tabs. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `"space"`.
     warning: The `lint.flake8-implicit-str-concat.allow-multiline = false` option is incompatible with the formatter unless `ISC001` is enabled. We recommend enabling `ISC001` or setting `allow-multiline=true`.
     warning: The `format.indent-style="tab"` option is incompatible with `D206`, with requires space-based indentation. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `"space"`.
@@ -1059,7 +1058,7 @@ def say_hy(name: str):
     	print(f"Hy {name}")
 
     ----- stderr -----
-    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `select` or `extend-select` configuration, or adding it to the `ignore` configuration.
+    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `lint.select` or `lint.extend-select` configuration, or adding it to the `lint.ignore` configuration.
     warning: The `format.indent-style="tab"` option is incompatible with `W191`, which lints against all uses of tabs. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `"space"`.
     warning: The `format.indent-style="tab"` option is incompatible with `D206`, with requires space-based indentation. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `"space"`.
     warning: The `flake8-quotes.inline-quotes="single"` option is incompatible with the formatter's `format.quote-style="double"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `"single"` or `"double"`.
@@ -1199,7 +1198,7 @@ def say_hy(name: str):
     ----- stderr -----
     warning: `incorrect-blank-line-before-class` (D203) and `no-blank-line-before-class` (D211) are incompatible. Ignoring `incorrect-blank-line-before-class`.
     warning: `multi-line-summary-first-line` (D212) and `multi-line-summary-second-line` (D213) are incompatible. Ignoring `multi-line-summary-second-line`.
-    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `select` or `extend-select` configuration, or adding it to the `ignore` configuration.
+    warning: The following rule may cause conflicts when used with the formatter: `COM812`. To avoid unexpected behavior, we recommend disabling this rule, either by removing it from the `lint.select` or `lint.extend-select` configuration, or adding it to the `lint.ignore` configuration.
     ");
     Ok(())
 }

crates/ruff/tests/integration_test.rs

@@ -1067,7 +1067,7 @@ fn show_statistics_syntax_errors() {
     success: false
     exit_code: 1
     ----- stdout -----
-    1		syntax-error
+    1		invalid-syntax
     Found 1 error.
 
     ----- stderr -----
@@ -1080,7 +1080,7 @@ fn show_statistics_syntax_errors() {
     success: false
     exit_code: 1
     ----- stdout -----
-    1		syntax-error
+    1		invalid-syntax
     Found 1 error.
 
     ----- stderr -----
@@ -1093,7 +1093,7 @@ fn show_statistics_syntax_errors() {
     success: false
     exit_code: 1
     ----- stdout -----
-    1		syntax-error
+    1		invalid-syntax
     Found 1 error.
 
     ----- stderr -----
@@ -2246,8 +2246,7 @@ fn pyproject_toml_stdin_syntax_error() {
     success: false
     exit_code: 1
     ----- stdout -----
-    pyproject.toml:1:9: RUF200 Failed to parse pyproject.toml: invalid table header
-    expected `.`, `]`
+    pyproject.toml:1:9: RUF200 Failed to parse pyproject.toml: unclosed table, expected `]`
       |
     1 | [project
       |         ^ RUF200

crates/ruff/tests/lint.rs

@@ -534,7 +534,7 @@ fn nonexistent_config_file() {
 fn config_override_rejected_if_invalid_toml() {
     assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
         .args(STDIN_BASE_OPTIONS)
-        .args(["--config", "foo = bar", "."]), @r#"
+        .args(["--config", "foo = bar", "."]), @r"
     success: false
     exit_code: 2
     ----- stdout -----
@@ -551,12 +551,11 @@ fn config_override_rejected_if_invalid_toml() {
     TOML parse error at line 1, column 7
       |
     1 | foo = bar
-      |       ^
-    invalid string
-    expected `"`, `'`
+      |       ^^^
+    string values must be quoted, expected literal string
 
     For more information, try '--help'.
-    "#);
+    ");
 }
 
 #[test]
@@ -612,7 +611,7 @@ fn extend_passed_via_config_argument() {
 #[test]
 fn nonexistent_extend_file() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     fs::write(
         project_dir.join("ruff.toml"),
         r#"
@@ -653,7 +652,7 @@ extend = "ruff3.toml"
 #[test]
 fn circular_extend() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_path = tempdir.path().canonicalize()?;
+    let project_path = dunce::canonicalize(tempdir.path())?;
 
     fs::write(
         project_path.join("ruff.toml"),
@@ -698,7 +697,7 @@ extend = "ruff.toml"
 #[test]
 fn parse_error_extends() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_path = tempdir.path().canonicalize()?;
+    let project_path = dunce::canonicalize(tempdir.path())?;
 
     fs::write(
         project_path.join("ruff.toml"),
@@ -733,9 +732,8 @@ select = [E501]
       Cause: TOML parse error at line 3, column 11
       |
     3 | select = [E501]
-      |           ^
-    invalid array
-    expected `]`
+      |           ^^^^
+    string values must be quoted, expected literal string
     ");
     });
 
@@ -876,7 +874,7 @@ fn each_toml_option_requires_a_new_flag_1() {
       |
     1 | extend-select=['F841'], line-length=90
       |                       ^
-    expected newline, `#`
+    unexpected key or value, expected newline, `#`
 
     For more information, try '--help'.
     ");
@@ -907,7 +905,7 @@ fn each_toml_option_requires_a_new_flag_2() {
       |
     1 | extend-select=['F841'] line-length=90
       |                        ^
-    expected newline, `#`
+    unexpected key or value, expected newline, `#`
 
     For more information, try '--help'.
     ");
@@ -995,6 +993,7 @@ fn value_given_to_table_key_is_not_inline_table_2() {
     - `lint.exclude`
     - `lint.preview`
     - `lint.typing-extensions`
+    - `lint.future-annotations`
 
     For more information, try '--help'.
     ");
@@ -1157,18 +1156,20 @@ include = ["*.ipy"]
 
 #[test]
 fn warn_invalid_noqa_with_no_diagnostics() {
-    assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
-        .args(STDIN_BASE_OPTIONS)
-        .args(["--isolated"])
-        .arg("--select")
-        .arg("F401")
-        .arg("-")
-        .pass_stdin(
-            r#"
+    assert_cmd_snapshot!(
+        Command::new(get_cargo_bin(BIN_NAME))
+            .args(STDIN_BASE_OPTIONS)
+            .args(["--isolated"])
+            .arg("--select")
+            .arg("F401")
+            .arg("-")
+            .pass_stdin(
+                r#"
 # ruff: noqa: AAA101
 print("Hello world!")
 "#
-        ));
+            )
+    );
 }
 
 #[test]
@@ -2128,7 +2129,7 @@ select = ["UP006"]
 #[test]
 fn requires_python_no_tool() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("pyproject.toml");
     fs::write(
         &ruff_toml,
@@ -2421,7 +2422,7 @@ requires-python = ">= 3.11"
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.11
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -2439,7 +2440,7 @@ requires-python = ">= 3.11"
 #[test]
 fn requires_python_no_tool_target_version_override() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("pyproject.toml");
     fs::write(
         &ruff_toml,
@@ -2733,7 +2734,7 @@ requires-python = ">= 3.11"
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.10
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -2750,7 +2751,7 @@ requires-python = ">= 3.11"
 #[test]
 fn requires_python_no_tool_with_check() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("pyproject.toml");
     fs::write(
         &ruff_toml,
@@ -2795,7 +2796,7 @@ requires-python = ">= 3.11"
 #[test]
 fn requires_python_ruff_toml_no_target_fallback() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("ruff.toml");
     fs::write(
         &ruff_toml,
@@ -3097,7 +3098,7 @@ from typing import Union;foo: Union[int, str] = 1
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.11
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -3116,7 +3117,7 @@ from typing import Union;foo: Union[int, str] = 1
 #[test]
 fn requires_python_ruff_toml_no_target_fallback_check() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("ruff.toml");
     fs::write(
         &ruff_toml,
@@ -3171,7 +3172,7 @@ from typing import Union;foo: Union[int, str] = 1
 #[test]
 fn requires_python_pyproject_toml_above() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let outer_pyproject = tempdir.path().join("pyproject.toml");
     fs::write(
         &outer_pyproject,
@@ -3198,7 +3199,7 @@ from typing import Union;foo: Union[int, str] = 1
 "#,
     )?;
 
-    let testpy_canon = testpy.canonicalize()?;
+    let testpy_canon = dunce::canonicalize(testpy)?;
 
     insta::with_settings!({
         filters => vec![(tempdir_filter(&testpy_canon).as_str(), "[TMP]/foo/test.py"),(tempdir_filter(&project_dir).as_str(), "[TMP]/"),(r"(?m)^foo\\test","foo/test")]
@@ -3477,7 +3478,7 @@ from typing import Union;foo: Union[int, str] = 1
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.11
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -3497,7 +3498,7 @@ from typing import Union;foo: Union[int, str] = 1
 #[test]
 fn requires_python_pyproject_toml_above_with_tool() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let outer_pyproject = tempdir.path().join("pyproject.toml");
     fs::write(
         &outer_pyproject,
@@ -3526,7 +3527,7 @@ from typing import Union;foo: Union[int, str] = 1
 "#,
     )?;
 
-    let testpy_canon = testpy.canonicalize()?;
+    let testpy_canon = dunce::canonicalize(testpy)?;
 
     insta::with_settings!({
         filters => vec![(tempdir_filter(&testpy_canon).as_str(), "[TMP]/foo/test.py"),(tempdir_filter(&project_dir).as_str(), "[TMP]/"),(r"foo\\","foo/")]
@@ -3805,7 +3806,7 @@ from typing import Union;foo: Union[int, str] = 1
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.10
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -3825,7 +3826,7 @@ from typing import Union;foo: Union[int, str] = 1
 #[test]
 fn requires_python_ruff_toml_above() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("ruff.toml");
     fs::write(
         &ruff_toml,
@@ -3854,7 +3855,7 @@ from typing import Union;foo: Union[int, str] = 1
 "#,
     )?;
 
-    let testpy_canon = testpy.canonicalize()?;
+    let testpy_canon = dunce::canonicalize(testpy)?;
 
     insta::with_settings!({
         filters => vec![(tempdir_filter(&testpy_canon).as_str(), "[TMP]/foo/test.py"),(tempdir_filter(&project_dir).as_str(), "[TMP]/")]
@@ -4133,7 +4134,7 @@ from typing import Union;foo: Union[int, str] = 1
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.9
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -4418,7 +4419,7 @@ from typing import Union;foo: Union[int, str] = 1
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.9
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -4439,7 +4440,7 @@ from typing import Union;foo: Union[int, str] = 1
 #[test]
 fn requires_python_extend_from_shared_config() -> Result<()> {
     let tempdir = TempDir::new()?;
-    let project_dir = tempdir.path().canonicalize()?;
+    let project_dir = dunce::canonicalize(tempdir.path())?;
     let ruff_toml = tempdir.path().join("ruff.toml");
     fs::write(
         &ruff_toml,
@@ -4477,7 +4478,7 @@ from typing import Union;foo: Union[int, str] = 1
 "#,
     )?;
 
-    let testpy_canon = testpy.canonicalize()?;
+    let testpy_canon = dunce::canonicalize(testpy)?;
 
     insta::with_settings!({
         filters => vec![(tempdir_filter(&testpy_canon).as_str(), "[TMP]/test.py"),(tempdir_filter(&project_dir).as_str(), "[TMP]/")]
@@ -4756,7 +4757,7 @@ from typing import Union;foo: Union[int, str] = 1
         analyze.exclude = []
         analyze.preview = disabled
         analyze.target_version = 3.10
-        analyze.detect_string_imports = false
+        analyze.string_imports = disabled
         analyze.extension = ExtensionMapping({})
         analyze.include_dependencies = {}
 
@@ -4997,30 +4998,34 @@ fn flake8_import_convention_invalid_aliases_config_module_name() -> Result<()> {
 
 #[test]
 fn flake8_import_convention_unused_aliased_import() {
-    assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
-        .args(STDIN_BASE_OPTIONS)
-        .arg("--config")
-        .arg(r#"lint.isort.required-imports = ["import pandas"]"#)
-        .args(["--select", "I002,ICN001,F401"])
-        .args(["--stdin-filename", "test.py"])
-        .arg("--unsafe-fixes")
-        .arg("--fix")
-        .arg("-")
-        .pass_stdin("1"));
+    assert_cmd_snapshot!(
+        Command::new(get_cargo_bin(BIN_NAME))
+            .args(STDIN_BASE_OPTIONS)
+            .arg("--config")
+            .arg(r#"lint.isort.required-imports = ["import pandas"]"#)
+            .args(["--select", "I002,ICN001,F401"])
+            .args(["--stdin-filename", "test.py"])
+            .arg("--unsafe-fixes")
+            .arg("--fix")
+            .arg("-")
+            .pass_stdin("1")
+    );
 }
 
 #[test]
 fn flake8_import_convention_unused_aliased_import_no_conflict() {
-    assert_cmd_snapshot!(Command::new(get_cargo_bin(BIN_NAME))
-        .args(STDIN_BASE_OPTIONS)
-        .arg("--config")
-        .arg(r#"lint.isort.required-imports = ["import pandas as pd"]"#)
-        .args(["--select", "I002,ICN001,F401"])
-        .args(["--stdin-filename", "test.py"])
-        .arg("--unsafe-fixes")
-        .arg("--fix")
-        .arg("-")
-        .pass_stdin("1"));
+    assert_cmd_snapshot!(
+        Command::new(get_cargo_bin(BIN_NAME))
+            .args(STDIN_BASE_OPTIONS)
+            .arg("--config")
+            .arg(r#"lint.isort.required-imports = ["import pandas as pd"]"#)
+            .args(["--select", "I002,ICN001,F401"])
+            .args(["--stdin-filename", "test.py"])
+            .arg("--unsafe-fixes")
+            .arg("--fix")
+            .arg("-")
+            .pass_stdin("1")
+    );
 }
 
 // See: https://github.com/astral-sh/ruff/issues/16177
@@ -5430,14 +5435,15 @@ match 2:
         print("it's one")
 "#
         ),
-        @r"
-    success: true
-    exit_code: 0
+        @r###"
+    success: false
+    exit_code: 1
     ----- stdout -----
-    All checks passed!
+    test.py:2:1: SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+    Found 1 error.
 
     ----- stderr -----
-    "
+    "###
     );
 
     // syntax error on 3.9 with preview
@@ -5685,3 +5691,82 @@ class Foo:
     "
     );
 }
+
+#[test_case::test_case("concise")]
+#[test_case::test_case("full")]
+#[test_case::test_case("json")]
+#[test_case::test_case("json-lines")]
+#[test_case::test_case("junit")]
+#[test_case::test_case("grouped")]
+#[test_case::test_case("github")]
+#[test_case::test_case("gitlab")]
+#[test_case::test_case("pylint")]
+#[test_case::test_case("rdjson")]
+#[test_case::test_case("azure")]
+#[test_case::test_case("sarif")]
+fn output_format(output_format: &str) -> Result<()> {
+    const CONTENT: &str = "\
+import os  # F401
+x = y      # F821
+match 42:  # invalid-syntax
+    case _: ...
+";
+
+    let tempdir = TempDir::new()?;
+    let input = tempdir.path().join("input.py");
+    fs::write(&input, CONTENT)?;
+
+    let snapshot = format!("output_format_{output_format}");
+
+    let project_dir = dunce::canonicalize(tempdir.path())?;
+
+    insta::with_settings!({
+        filters => vec![
+            (tempdir_filter(&project_dir).as_str(), "[TMP]/"),
+            (tempdir_filter(&tempdir).as_str(), "[TMP]/"),
+            (r#""[^"]+\\?/?input.py"#, r#""[TMP]/input.py"#),
+            (ruff_linter::VERSION, "[VERSION]"),
+        ]
+    }, {
+        assert_cmd_snapshot!(
+            snapshot,
+            Command::new(get_cargo_bin(BIN_NAME))
+                .args([
+                    "check",
+                    "--no-cache",
+                    "--output-format",
+                    output_format,
+                    "--select",
+                    "F401,F821",
+                    "--target-version",
+                    "py39",
+                    "input.py",
+                ])
+                .current_dir(&tempdir),
+        );
+    });
+
+    Ok(())
+}
+
+#[test]
+fn future_annotations_preview_warning() {
+    assert_cmd_snapshot!(
+        Command::new(get_cargo_bin(BIN_NAME))
+            .args(STDIN_BASE_OPTIONS)
+            .args(["--config", "lint.future-annotations = true"])
+            .args(["--select", "F"])
+            .arg("--no-preview")
+            .arg("-")
+            .pass_stdin("1"),
+        @r"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    All checks passed!
+
+    ----- stderr -----
+    warning: The `lint.future-annotations` setting will have no effect because `preview` is disabled
+    ",
+    );
+}

crates/ruff/tests/show_settings.rs

@@ -12,10 +12,8 @@ fn display_default_settings() -> anyhow::Result<()> {
 
     // Tempdir path's on macos are symlinks, which doesn't play nicely with
     // our snapshot filtering.
-    let project_dir = tempdir
-        .path()
-        .canonicalize()
-        .context("Failed to canonical tempdir path.")?;
+    let project_dir =
+        dunce::canonicalize(tempdir.path()).context("Failed to canonical tempdir path.")?;
 
     std::fs::write(
         project_dir.join("pyproject.toml"),

crates/ruff/tests/snapshots/lint__output_format_azure.snap

@@ -0,0 +1,23 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - azure
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+##vso[task.logissue type=error;sourcepath=[TMP]/input.py;linenumber=1;columnnumber=8;code=F401;]`os` imported but unused
+##vso[task.logissue type=error;sourcepath=[TMP]/input.py;linenumber=2;columnnumber=5;code=F821;]Undefined name `y`
+##vso[task.logissue type=error;sourcepath=[TMP]/input.py;linenumber=3;columnnumber=1;]SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_concise.snap

@@ -0,0 +1,25 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - concise
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+input.py:1:8: F401 [*] `os` imported but unused
+input.py:2:5: F821 Undefined name `y`
+input.py:3:1: SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+Found 3 errors.
+[*] 1 fixable with the `--fix` option.
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_full.snap

@@ -0,0 +1,49 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - full
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+input.py:1:8: F401 [*] `os` imported but unused
+  |
+1 | import os  # F401
+  |        ^^ F401
+2 | x = y      # F821
+3 | match 42:  # invalid-syntax
+  |
+  = help: Remove unused import: `os`
+
+input.py:2:5: F821 Undefined name `y`
+  |
+1 | import os  # F401
+2 | x = y      # F821
+  |     ^ F821
+3 | match 42:  # invalid-syntax
+4 |     case _: ...
+  |
+
+input.py:3:1: SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+  |
+1 | import os  # F401
+2 | x = y      # F821
+3 | match 42:  # invalid-syntax
+  | ^^^^^
+4 |     case _: ...
+  |
+
+Found 3 errors.
+[*] 1 fixable with the `--fix` option.
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_github.snap

@@ -0,0 +1,23 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - github
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+::error title=Ruff (F401),file=[TMP]/input.py,line=1,col=8,endLine=1,endColumn=10::input.py:1:8: F401 `os` imported but unused
+::error title=Ruff (F821),file=[TMP]/input.py,line=2,col=5,endLine=2,endColumn=6::input.py:2:5: F821 Undefined name `y`
+::error title=Ruff,file=[TMP]/input.py,line=3,col=1,endLine=3,endColumn=6::input.py:3:1: SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_gitlab.snap

@@ -0,0 +1,60 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - gitlab
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+[
+  {
+    "check_name": "F401",
+    "description": "`os` imported but unused",
+    "fingerprint": "4dbad37161e65c72",
+    "location": {
+      "lines": {
+        "begin": 1,
+        "end": 1
+      },
+      "path": "input.py"
+    },
+    "severity": "major"
+  },
+  {
+    "check_name": "F821",
+    "description": "Undefined name `y`",
+    "fingerprint": "7af59862a085230",
+    "location": {
+      "lines": {
+        "begin": 2,
+        "end": 2
+      },
+      "path": "input.py"
+    },
+    "severity": "major"
+  },
+  {
+    "check_name": "syntax-error",
+    "description": "Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)",
+    "fingerprint": "e558cec859bb66e8",
+    "location": {
+      "lines": {
+        "begin": 3,
+        "end": 3
+      },
+      "path": "input.py"
+    },
+    "severity": "major"
+  }
+]
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_grouped.snap

@@ -0,0 +1,27 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - grouped
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+input.py:
+  1:8 F401 [*] `os` imported but unused
+  2:5 F821 Undefined name `y`
+  3:1 SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+
+Found 3 errors.
+[*] 1 fixable with the `--fix` option.
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_json-lines.snap

@@ -0,0 +1,23 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - json-lines
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+{"cell":null,"code":"F401","end_location":{"column":10,"row":1},"filename":"[TMP]/input.py","fix":{"applicability":"safe","edits":[{"content":"","end_location":{"column":1,"row":2},"location":{"column":1,"row":1}}],"message":"Remove unused import: `os`"},"location":{"column":8,"row":1},"message":"`os` imported but unused","noqa_row":1,"url":"https://docs.astral.sh/ruff/rules/unused-import"}
+{"cell":null,"code":"F821","end_location":{"column":6,"row":2},"filename":"[TMP]/input.py","fix":null,"location":{"column":5,"row":2},"message":"Undefined name `y`","noqa_row":2,"url":"https://docs.astral.sh/ruff/rules/undefined-name"}
+{"cell":null,"code":null,"end_location":{"column":6,"row":3},"filename":"[TMP]/input.py","fix":null,"location":{"column":1,"row":3},"message":"SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)","noqa_row":null,"url":null}
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_json.snap

@@ -0,0 +1,88 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - json
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+[
+  {
+    "cell": null,
+    "code": "F401",
+    "end_location": {
+      "column": 10,
+      "row": 1
+    },
+    "filename": "[TMP]/input.py",
+    "fix": {
+      "applicability": "safe",
+      "edits": [
+        {
+          "content": "",
+          "end_location": {
+            "column": 1,
+            "row": 2
+          },
+          "location": {
+            "column": 1,
+            "row": 1
+          }
+        }
+      ],
+      "message": "Remove unused import: `os`"
+    },
+    "location": {
+      "column": 8,
+      "row": 1
+    },
+    "message": "`os` imported but unused",
+    "noqa_row": 1,
+    "url": "https://docs.astral.sh/ruff/rules/unused-import"
+  },
+  {
+    "cell": null,
+    "code": "F821",
+    "end_location": {
+      "column": 6,
+      "row": 2
+    },
+    "filename": "[TMP]/input.py",
+    "fix": null,
+    "location": {
+      "column": 5,
+      "row": 2
+    },
+    "message": "Undefined name `y`",
+    "noqa_row": 2,
+    "url": "https://docs.astral.sh/ruff/rules/undefined-name"
+  },
+  {
+    "cell": null,
+    "code": null,
+    "end_location": {
+      "column": 6,
+      "row": 3
+    },
+    "filename": "[TMP]/input.py",
+    "fix": null,
+    "location": {
+      "column": 1,
+      "row": 3
+    },
+    "message": "SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)",
+    "noqa_row": null,
+    "url": null
+  }
+]
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_junit.snap

@@ -0,0 +1,34 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - junit
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuites name="ruff" tests="3" failures="3" errors="0">
+    <testsuite name="[TMP]/input.py" tests="3" disabled="0" errors="0" failures="3" package="org.ruff">
+        <testcase name="org.ruff.F401" classname="[TMP]/input" line="1" column="8">
+            <failure message="`os` imported but unused">line 1, col 8, `os` imported but unused</failure>
+        </testcase>
+        <testcase name="org.ruff.F821" classname="[TMP]/input" line="2" column="5">
+            <failure message="Undefined name `y`">line 2, col 5, Undefined name `y`</failure>
+        </testcase>
+        <testcase name="org.ruff.invalid-syntax" classname="[TMP]/input" line="3" column="1">
+            <failure message="SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)">line 3, col 1, SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)</failure>
+        </testcase>
+    </testsuite>
+</testsuites>
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_pylint.snap

@@ -0,0 +1,23 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - pylint
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+input.py:1: [F401] `os` imported but unused
+input.py:2: [F821] Undefined name `y`
+input.py:3: [invalid-syntax] SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
+
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_rdjson.snap

@@ -0,0 +1,102 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - rdjson
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+{
+  "diagnostics": [
+    {
+      "code": {
+        "url": "https://docs.astral.sh/ruff/rules/unused-import",
+        "value": "F401"
+      },
+      "location": {
+        "path": "[TMP]/input.py",
+        "range": {
+          "end": {
+            "column": 10,
+            "line": 1
+          },
+          "start": {
+            "column": 8,
+            "line": 1
+          }
+        }
+      },
+      "message": "`os` imported but unused",
+      "suggestions": [
+        {
+          "range": {
+            "end": {
+              "column": 1,
+              "line": 2
+            },
+            "start": {
+              "column": 1,
+              "line": 1
+            }
+          },
+          "text": ""
+        }
+      ]
+    },
+    {
+      "code": {
+        "url": "https://docs.astral.sh/ruff/rules/undefined-name",
+        "value": "F821"
+      },
+      "location": {
+        "path": "[TMP]/input.py",
+        "range": {
+          "end": {
+            "column": 6,
+            "line": 2
+          },
+          "start": {
+            "column": 5,
+            "line": 2
+          }
+        }
+      },
+      "message": "Undefined name `y`"
+    },
+    {
+      "code": {
+        "value": "invalid-syntax"
+      },
+      "location": {
+        "path": "[TMP]/input.py",
+        "range": {
+          "end": {
+            "column": 6,
+            "line": 3
+          },
+          "start": {
+            "column": 1,
+            "line": 3
+          }
+        }
+      },
+      "message": "SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)"
+    }
+  ],
+  "severity": "WARNING",
+  "source": {
+    "name": "ruff",
+    "url": "https://docs.astral.sh/ruff"
+  }
+}
+----- stderr -----

crates/ruff/tests/snapshots/lint__output_format_sarif.snap

@@ -0,0 +1,142 @@
+---
+source: crates/ruff/tests/lint.rs
+info:
+  program: ruff
+  args:
+    - check
+    - "--no-cache"
+    - "--output-format"
+    - sarif
+    - "--select"
+    - "F401,F821"
+    - "--target-version"
+    - py39
+    - input.py
+---
+success: false
+exit_code: 1
+----- stdout -----
+{
+  "$schema": "https://json.schemastore.org/sarif-2.1.0.json",
+  "runs": [
+    {
+      "results": [
+        {
+          "level": "error",
+          "locations": [
+            {
+              "physicalLocation": {
+                "artifactLocation": {
+                  "uri": "[TMP]/input.py"
+                },
+                "region": {
+                  "endColumn": 10,
+                  "endLine": 1,
+                  "startColumn": 8,
+                  "startLine": 1
+                }
+              }
+            }
+          ],
+          "message": {
+            "text": "`os` imported but unused"
+          },
+          "ruleId": "F401"
+        },
+        {
+          "level": "error",
+          "locations": [
+            {
+              "physicalLocation": {
+                "artifactLocation": {
+                  "uri": "[TMP]/input.py"
+                },
+                "region": {
+                  "endColumn": 6,
+                  "endLine": 2,
+                  "startColumn": 5,
+                  "startLine": 2
+                }
+              }
+            }
+          ],
+          "message": {
+            "text": "Undefined name `y`"
+          },
+          "ruleId": "F821"
+        },
+        {
+          "level": "error",
+          "locations": [
+            {
+              "physicalLocation": {
+                "artifactLocation": {
+                  "uri": "[TMP]/input.py"
+                },
+                "region": {
+                  "endColumn": 6,
+                  "endLine": 3,
+                  "startColumn": 1,
+                  "startLine": 3
+                }
+              }
+            }
+          ],
+          "message": {
+            "text": "SyntaxError: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)"
+          },
+          "ruleId": null
+        }
+      ],
+      "tool": {
+        "driver": {
+          "informationUri": "https://github.com/astral-sh/ruff",
+          "name": "ruff",
+          "rules": [
+            {
+              "fullDescription": {
+                "text": "## What it does\nChecks for unused imports.\n\n## Why is this bad?\nUnused imports add a performance overhead at runtime, and risk creating\nimport cycles. They also increase the cognitive load of reading the code.\n\nIf an import statement is used to check for the availability or existence\nof a module, consider using `importlib.util.find_spec` instead.\n\nIf an import statement is used to re-export a symbol as part of a module's\npublic interface, consider using a \"redundant\" import alias, which\ninstructs Ruff (and other tools) to respect the re-export, and avoid\nmarking it as unused, as in:\n\n```python\nfrom module import member as member\n```\n\nAlternatively, you can use `__all__` to declare a symbol as part of the module's\ninterface, as in:\n\n```python\n# __init__.py\nimport some_module\n\n__all__ = [\"some_module\"]\n```\n\n## Fix safety\n\nFixes to remove unused imports are safe, except in `__init__.py` files.\n\nApplying fixes to `__init__.py` files is currently in preview. The fix offered depends on the\ntype of the unused import. Ruff will suggest a safe fix to export first-party imports with\neither a redundant alias or, if already present in the file, an `__all__` entry. If multiple\n`__all__` declarations are present, Ruff will not offer a fix. Ruff will suggest an unsafe fix\nto remove third-party and standard library imports -- the fix is unsafe because the module's\ninterface changes.\n\n## Example\n\n```python\nimport numpy as np  # unused import\n\n\ndef area(radius):\n    return 3.14 * radius**2\n```\n\nUse instead:\n\n```python\ndef area(radius):\n    return 3.14 * radius**2\n```\n\nTo check the availability of a module, use `importlib.util.find_spec`:\n\n```python\nfrom importlib.util import find_spec\n\nif find_spec(\"numpy\") is not None:\n    print(\"numpy is installed\")\nelse:\n    print(\"numpy is not installed\")\n```\n\n## Preview\nWhen [preview](https://docs.astral.sh/ruff/preview/) is enabled,\nthe criterion for determining whether an import is first-party\nis stricter, which could affect the suggested fix. See [this FAQ section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) for more details.\n\n## Options\n- `lint.ignore-init-module-imports`\n- `lint.pyflakes.allowed-unused-imports`\n\n## References\n- [Python documentation: `import`](https://docs.python.org/3/reference/simple_stmts.html#the-import-statement)\n- [Python documentation: `importlib.util.find_spec`](https://docs.python.org/3/library/importlib.html#importlib.util.find_spec)\n- [Typing documentation: interface conventions](https://typing.python.org/en/latest/source/libraries.html#library-interface-public-and-private-symbols)\n"
+              },
+              "help": {
+                "text": "`{name}` imported but unused; consider using `importlib.util.find_spec` to test for availability"
+              },
+              "helpUri": "https://docs.astral.sh/ruff/rules/unused-import",
+              "id": "F401",
+              "properties": {
+                "id": "F401",
+                "kind": "Pyflakes",
+                "name": "unused-import",
+                "problem.severity": "error"
+              },
+              "shortDescription": {
+                "text": "`{name}` imported but unused; consider using `importlib.util.find_spec` to test for availability"
+              }
+            },
+            {
+              "fullDescription": {
+                "text": "## What it does\nChecks for uses of undefined names.\n\n## Why is this bad?\nAn undefined name is likely to raise `NameError` at runtime.\n\n## Example\n```python\ndef double():\n    return n * 2  # raises `NameError` if `n` is undefined when `double` is called\n```\n\nUse instead:\n```python\ndef double(n):\n    return n * 2\n```\n\n## Options\n- [`target-version`]: Can be used to configure which symbols Ruff will understand\n  as being available in the `builtins` namespace.\n\n## References\n- [Python documentation: Naming and binding](https://docs.python.org/3/reference/executionmodel.html#naming-and-binding)\n"
+              },
+              "help": {
+                "text": "Undefined name `{name}`. {tip}"
+              },
+              "helpUri": "https://docs.astral.sh/ruff/rules/undefined-name",
+              "id": "F821",
+              "properties": {
+                "id": "F821",
+                "kind": "Pyflakes",
+                "name": "undefined-name",
+                "problem.severity": "error"
+              },
+              "shortDescription": {
+                "text": "Undefined name `{name}`. {tip}"
+              }
+            }
+          ],
+          "version": "[VERSION]"
+        }
+      }
+    }
+  ],
+  "version": "2.1.0"
+}
+----- stderr -----

crates/ruff/tests/snapshots/show_settings__display_default_settings.snap

@@ -392,7 +392,7 @@ formatter.docstring_code_line_width = dynamic
 analyze.exclude = []
 analyze.preview = disabled
 analyze.target_version = 3.7
-analyze.detect_string_imports = false
+analyze.string_imports = disabled
 analyze.extension = ExtensionMapping({})
 analyze.include_dependencies = {}
 

crates/ruff/tests/version.rs

@@ -60,7 +60,7 @@ fn config_option_ignored_but_validated() {
         assert_cmd_snapshot!(
             Command::new(get_cargo_bin(BIN_NAME))
                 .arg("version")
-                .args(["--config", "foo = bar"]), @r#"
+                .args(["--config", "foo = bar"]), @r"
         success: false
         exit_code: 2
         ----- stdout -----
@@ -77,12 +77,11 @@ fn config_option_ignored_but_validated() {
         TOML parse error at line 1, column 7
           |
         1 | foo = bar
-          |       ^
-        invalid string
-        expected `"`, `'`
+          |       ^^^
+        string values must be quoted, expected literal string
 
         For more information, try '--help'.
-        "#
+        "
         );
     });
 }

crates/ruff_annotate_snippets/src/renderer/display_list.rs

@@ -32,7 +32,7 @@
 //!
 //! The above snippet has been built out of the following structure:
 use crate::snippet;
-use std::cmp::{max, min, Reverse};
+use std::cmp::{Reverse, max, min};
 use std::collections::HashMap;
 use std::fmt::Display;
 use std::ops::Range;
@@ -41,7 +41,7 @@ use std::{cmp, fmt};
 use unicode_width::UnicodeWidthStr;
 
 use crate::renderer::styled_buffer::StyledBuffer;
-use crate::renderer::{stylesheet::Stylesheet, Margin, Style, DEFAULT_TERM_WIDTH};
+use crate::renderer::{DEFAULT_TERM_WIDTH, Margin, Style, stylesheet::Stylesheet};
 
 const ANONYMIZED_LINE_NUM: &str = "LL";
 const ERROR_TXT: &str = "error";
@@ -352,7 +352,7 @@ impl DisplaySet<'_> {
                         // FIXME: `unicode_width` sometimes disagrees with terminals on how wide a `char`
                         // is. For now, just accept that sometimes the code line will be longer than
                         // desired.
-                        let next = unicode_width::UnicodeWidthChar::width(ch).unwrap_or(1);
+                        let next = char_width(ch).unwrap_or(1);
                         if taken + next > right - left {
                             was_cut_right = true;
                             break;
@@ -377,7 +377,7 @@ impl DisplaySet<'_> {
                     let left: usize = text
                         .chars()
                         .take(left)
-                        .map(|ch| unicode_width::UnicodeWidthChar::width(ch).unwrap_or(1))
+                        .map(|ch| char_width(ch).unwrap_or(1))
                         .sum();
 
                     let mut annotations = annotations.clone();
@@ -821,11 +821,7 @@ impl DisplaySourceAnnotation<'_> {
     // Length of this annotation as displayed in the stderr output
     fn len(&self) -> usize {
         // Account for usize underflows
-        if self.range.1 > self.range.0 {
-            self.range.1 - self.range.0
-        } else {
-            self.range.0 - self.range.1
-        }
+        self.range.1.abs_diff(self.range.0)
     }
 
     fn takes_space(&self) -> bool {
@@ -1273,10 +1269,7 @@ fn fold_body(body: Vec<DisplayLine<'_>>) -> Vec<DisplayLine<'_>> {
                             let inline_marks = lines
                                 .last()
                                 .and_then(|line| {
-                                    if let DisplayLine::Source {
-                                        ref inline_marks, ..
-                                    } = line
-                                    {
+                                    if let DisplayLine::Source { inline_marks, .. } = line {
                                         let inline_marks = inline_marks.clone();
                                         Some(inline_marks)
                                     } else {
@@ -1396,6 +1389,7 @@ fn format_body<'m>(
         let line_length: usize = line.len();
         let line_range = (current_index, current_index + line_length);
         let end_line_size = end_line.len();
+
         body.push(DisplayLine::Source {
             lineno: Some(current_line),
             inline_marks: vec![],
@@ -1455,12 +1449,12 @@ fn format_body<'m>(
                         let annotation_start_col = line
                             [0..(start - line_start_index).min(line_length)]
                             .chars()
-                            .map(|c| unicode_width::UnicodeWidthChar::width(c).unwrap_or(0))
+                            .map(|c| char_width(c).unwrap_or(0))
                             .sum::<usize>();
                         let mut annotation_end_col = line
                             [0..(end - line_start_index).min(line_length)]
                             .chars()
-                            .map(|c| unicode_width::UnicodeWidthChar::width(c).unwrap_or(0))
+                            .map(|c| char_width(c).unwrap_or(0))
                             .sum::<usize>();
                         if annotation_start_col == annotation_end_col {
                             // At least highlight something
@@ -1502,7 +1496,7 @@ fn format_body<'m>(
                         let annotation_start_col = line
                             [0..(start - line_start_index).min(line_length)]
                             .chars()
-                            .map(|c| unicode_width::UnicodeWidthChar::width(c).unwrap_or(0))
+                            .map(|c| char_width(c).unwrap_or(0))
                             .sum::<usize>();
                         let annotation_end_col = annotation_start_col + 1;
 
@@ -1561,7 +1555,7 @@ fn format_body<'m>(
                     {
                         let end_mark = line[0..(end - line_start_index).min(line_length)]
                             .chars()
-                            .map(|c| unicode_width::UnicodeWidthChar::width(c).unwrap_or(0))
+                            .map(|c| char_width(c).unwrap_or(0))
                             .sum::<usize>()
                             .saturating_sub(1);
                         // If the annotation ends on a line-end character, we
@@ -1757,3 +1751,11 @@ fn format_inline_marks(
     }
     Ok(())
 }
+
+fn char_width(c: char) -> Option<usize> {
+    if c == '\t' {
+        Some(4)
+    } else {
+        unicode_width::UnicodeWidthChar::width(c)
+    }
+}

crates/ruff_annotate_snippets/tests/fixtures/color/regression_leading_tab_label_alignment.svg

@@ -0,0 +1,38 @@
+<svg width="740px" height="146px" xmlns="http://www.w3.org/2000/svg">
+  <style>
+    .fg { fill: #AAAAAA }
+    .bg { background: #000000 }
+    .fg-bright-blue { fill: #5555FF }
+    .fg-bright-red { fill: #FF5555 }
+    .container {
+      padding: 0 10px;
+      line-height: 18px;
+    }
+    .bold { font-weight: bold; }
+    tspan {
+      font: 14px SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;
+      white-space: pre;
+      line-height: 18px;
+    }
+  </style>
+
+  <rect width="100%" height="100%" y="0" rx="4.5" class="bg" />
+
+  <text xml:space="preserve" class="container fg">
+    <tspan x="10px" y="28px"><tspan class="fg-bright-red bold">error[E0308]</tspan><tspan>: </tspan><tspan class="bold">call-non-callable</tspan>
+</tspan>
+    <tspan x="10px" y="46px"><tspan> </tspan><tspan class="fg-bright-blue bold">--&gt;</tspan><tspan> $DIR/main.py:5:9</tspan>
+</tspan>
+    <tspan x="10px" y="64px"><tspan>  </tspan><tspan class="fg-bright-blue bold">|</tspan>
+</tspan>
+    <tspan x="10px" y="82px"><tspan class="fg-bright-blue bold">4 |</tspan><tspan> def f():</tspan>
+</tspan>
+    <tspan x="10px" y="100px"><tspan class="fg-bright-blue bold">5 |</tspan><tspan>     return (1 == '2')()  # Tab indented</tspan>
+</tspan>
+    <tspan x="10px" y="118px"><tspan>  </tspan><tspan class="fg-bright-blue bold">|</tspan><tspan>            </tspan><tspan class="fg-bright-red bold">^^^^^^^^^^^^</tspan>
+</tspan>
+    <tspan x="10px" y="136px"><tspan>  </tspan><tspan class="fg-bright-blue bold">|</tspan>
+</tspan>
+  </text>
+
+</svg>

crates/ruff_annotate_snippets/tests/fixtures/color/regression_leading_tab_label_alignment.toml

@@ -0,0 +1,45 @@
+
+# [crates/ruff_db/src/diagnostic/render.rs:123:47] diag.to_annotate() = Message {
+    # level: Error,
+    # id: Some(
+        # "call-non-callable",
+    # ),
+    # title: "Object of type `bool` is not callable",
+    # snippets: [
+        # Snippet {
+            # origin: Some(
+                # "main.py",
+            # ),
+            # line_start: 1,
+            # source: "def f():\n\treturn (1 == '2')()  # Tab indented\n",
+            # annotations: [
+                # Annotation {
+                    # range: 17..29,
+                    # label: None,
+                    # level: Error,
+                # },
+            # ],
+            # fold: false,
+        # },
+    # ],
+    # footer: [],
+# }
+
+[message]
+level = "Error"
+id = "E0308"
+title = "call-non-callable"
+
+[[message.snippets]]
+source = "def f():\n\treturn (1 == '2')()  # Tab indented\n"
+line_start = 4
+origin = "$DIR/main.py"
+
+[[message.snippets.annotations]]
+label = ""
+level = "Error"
+range = [17, 29]
+
+[renderer]
+# anonymized_line_numbers = true
+color = true

crates/ruff_annotate_snippets/tests/fixtures/color/regression_leading_tab_long_line.svg

@@ -0,0 +1,36 @@
+<svg width="1196px" height="128px" xmlns="http://www.w3.org/2000/svg">
+  <style>
+    .fg { fill: #AAAAAA }
+    .bg { background: #000000 }
+    .fg-bright-blue { fill: #5555FF }
+    .fg-bright-red { fill: #FF5555 }
+    .container {
+      padding: 0 10px;
+      line-height: 18px;
+    }
+    .bold { font-weight: bold; }
+    tspan {
+      font: 14px SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;
+      white-space: pre;
+      line-height: 18px;
+    }
+  </style>
+
+  <rect width="100%" height="100%" y="0" rx="4.5" class="bg" />
+
+  <text xml:space="preserve" class="container fg">
+    <tspan x="10px" y="28px"><tspan class="fg-bright-red bold">error[E0308]</tspan><tspan>: </tspan><tspan class="bold">mismatched types</tspan>
+</tspan>
+    <tspan x="10px" y="46px"><tspan> </tspan><tspan class="fg-bright-blue bold">--&gt;</tspan><tspan> $DIR/non-whitespace-trimming.rs:4:6</tspan>
+</tspan>
+    <tspan x="10px" y="64px"><tspan>  </tspan><tspan class="fg-bright-blue bold">|</tspan>
+</tspan>
+    <tspan x="10px" y="82px"><tspan class="fg-bright-blue bold">4 |</tspan><tspan> </tspan><tspan class="fg-bright-blue bold">...</tspan><tspan>   s_data['d_dails'] = bb['contacted'][hostip]['ansible_facts']['ansible_devices']['vda']['vendor'] + " " + bb['contacted'][hostip</tspan><tspan class="fg-bright-blue bold">...</tspan>
+</tspan>
+    <tspan x="10px" y="100px"><tspan>  </tspan><tspan class="fg-bright-blue bold">|</tspan><tspan>       </tspan><tspan class="fg-bright-red bold">^^^^^^</tspan>
+</tspan>
+    <tspan x="10px" y="118px"><tspan>  </tspan><tspan class="fg-bright-blue bold">|</tspan>
+</tspan>
+  </text>
+
+</svg>

crates/ruff_annotate_snippets/tests/fixtures/color/regression_leading_tab_long_line.toml

@@ -0,0 +1,20 @@
+[message]
+level = "Error"
+id = "E0308"
+title = "mismatched types"
+
+[[message.snippets]]
+source = """
+					s_data['d_dails'] = bb['contacted'][hostip]['ansible_facts']['ansible_devices']['vda']['vendor'] + " " + bb['contacted'][hostip]['an
+"""
+line_start = 4
+origin = "$DIR/non-whitespace-trimming.rs"
+
+[[message.snippets.annotations]]
+label = ""
+level = "Error"
+range = [5, 11]
+
+[renderer]
+# anonymized_line_numbers = true
+color = true

crates/ruff_annotate_snippets/tests/fixtures/color/strip_line_non_ws.svg

@@ -21,7 +21,7 @@
   <text xml:space="preserve" class="container fg">
     <tspan x="10px" y="28px"><tspan class="fg-bright-red bold">error[E0308]</tspan><tspan>: </tspan><tspan class="bold">mismatched types</tspan>
 </tspan>
-    <tspan x="10px" y="46px"><tspan>  </tspan><tspan class="fg-bright-blue bold">--&gt;</tspan><tspan> $DIR/non-whitespace-trimming.rs:4:242</tspan>
+    <tspan x="10px" y="46px"><tspan>  </tspan><tspan class="fg-bright-blue bold">--&gt;</tspan><tspan> $DIR/non-whitespace-trimming.rs:4:238</tspan>
 </tspan>
     <tspan x="10px" y="64px"><tspan>   </tspan><tspan class="fg-bright-blue bold">|</tspan>
 </tspan>

crates/ruff_annotate_snippets/tests/fixtures/color/strip_line_non_ws.toml

@@ -13,12 +13,12 @@ origin = "$DIR/non-whitespace-trimming.rs"
 [[message.snippets.annotations]]
 label = "expected `()`, found integer"
 level = "Error"
-range = [241, 243]
+range = [237, 239]
 
 [[message.snippets.annotations]]
 label = "expected due to this"
 level = "Error"
-range = [236, 238]
+range = [232, 234]
 
 
 [renderer]

crates/ruff_annotate_snippets/tests/fixtures/main.rs

@@ -2,8 +2,8 @@ mod deserialize;
 
 use crate::deserialize::Fixture;
 use ruff_annotate_snippets::{Message, Renderer};
-use snapbox::data::DataFormat;
 use snapbox::Data;
+use snapbox::data::DataFormat;
 use std::error::Error;
 
 fn main() {

crates/ruff_benchmark/Cargo.toml

@@ -19,43 +19,69 @@ doctest = false
 [[bench]]
 name = "linter"
 harness = false
+required-features = ["instrumented"]
 
 [[bench]]
 name = "lexer"
 harness = false
+required-features = ["instrumented"]
 
 [[bench]]
 name = "parser"
 harness = false
+required-features = ["instrumented"]
 
 [[bench]]
 name = "formatter"
 harness = false
+required-features = ["instrumented"]
 
 [[bench]]
 name = "ty"
 harness = false
+required-features = ["instrumented"]
+
+[[bench]]
+name = "ty_walltime"
+harness = false
+required-features = ["walltime"]
 
 [dependencies]
+ruff_db = { workspace = true, features = ["testing"] }
+ruff_python_ast = { workspace = true }
+ruff_linter = { workspace = true, optional = true }
+ruff_python_formatter = { workspace = true, optional = true }
+ruff_python_parser = { workspace = true, optional = true }
+ruff_python_trivia = { workspace = true, optional = true }
+ty_project = { workspace = true, optional = true }
+
+divan = { workspace = true, optional = true }
+anyhow = { workspace = true }
 codspeed-criterion-compat = { workspace = true, default-features = false, optional = true }
-criterion = { workspace = true, default-features = false }
+criterion = { workspace = true, default-features = false, optional = true }
 rayon = { workspace = true }
 rustc-hash = { workspace = true }
-
-[dev-dependencies]
-ruff_db = { workspace = true }
-ruff_linter = { workspace = true }
-ruff_python_ast = { workspace = true }
-ruff_python_formatter = { workspace = true }
-ruff_python_parser = { workspace = true }
-ruff_python_trivia = { workspace = true }
-ty_project = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+tracing = { workspace = true }
 
 [lints]
 workspace = true
 
 [features]
+default = ["instrumented", "walltime"]
+# Enables the benchmark that should only run with codspeed's instrumented runner
+instrumented = [
+    "criterion",
+    "ruff_linter",
+    "ruff_python_formatter",
+    "ruff_python_parser",
+    "ruff_python_trivia",
+    "ty_project",
+]
 codspeed = ["codspeed-criterion-compat"]
+# Enables benchmark that should only run with codspeed's walltime runner.
+walltime = ["ruff_db/os", "ty_project", "divan"]
 
 [target.'cfg(target_os = "windows")'.dev-dependencies]
 mimalloc = { workspace = true }

crates/ruff_benchmark/benches/formatter.rs

@@ -1,14 +1,14 @@
 use std::path::Path;
 
 use ruff_benchmark::criterion::{
-    criterion_group, criterion_main, BenchmarkId, Criterion, Throughput,
+    BenchmarkId, Criterion, Throughput, criterion_group, criterion_main,
 };
 
 use ruff_benchmark::{
-    TestCase, LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, UNICODE_PYPINYIN,
+    LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, TestCase, UNICODE_PYPINYIN,
 };
-use ruff_python_formatter::{format_module_ast, PreviewMode, PyFormatOptions};
-use ruff_python_parser::{parse, Mode, ParseOptions};
+use ruff_python_formatter::{PreviewMode, PyFormatOptions, format_module_ast};
+use ruff_python_parser::{Mode, ParseOptions, parse};
 use ruff_python_trivia::CommentRanges;
 
 #[cfg(target_os = "windows")]

crates/ruff_benchmark/benches/lexer.rs

@@ -1,12 +1,12 @@
 use ruff_benchmark::criterion;
 
 use criterion::{
-    criterion_group, criterion_main, measurement::WallTime, BenchmarkId, Criterion, Throughput,
+    BenchmarkId, Criterion, Throughput, criterion_group, criterion_main, measurement::WallTime,
 };
 use ruff_benchmark::{
-    TestCase, LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, UNICODE_PYPINYIN,
+    LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, TestCase, UNICODE_PYPINYIN,
 };
-use ruff_python_parser::{lexer, Mode, TokenKind};
+use ruff_python_parser::{Mode, TokenKind, lexer};
 
 #[cfg(target_os = "windows")]
 #[global_allocator]

crates/ruff_benchmark/benches/linter.rs

@@ -1,18 +1,18 @@
 use ruff_benchmark::criterion;
 
 use criterion::{
-    criterion_group, criterion_main, BenchmarkGroup, BenchmarkId, Criterion, Throughput,
+    BenchmarkGroup, BenchmarkId, Criterion, Throughput, criterion_group, criterion_main,
 };
 use ruff_benchmark::{
-    TestCase, LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, UNICODE_PYPINYIN,
+    LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, TestCase, UNICODE_PYPINYIN,
 };
-use ruff_linter::linter::{lint_only, ParseSource};
+use ruff_linter::linter::{ParseSource, lint_only};
 use ruff_linter::rule_selector::PreviewOptions;
 use ruff_linter::settings::rule_table::RuleTable;
 use ruff_linter::settings::types::PreviewMode;
-use ruff_linter::settings::{flags, LinterSettings};
+use ruff_linter::settings::{LinterSettings, flags};
 use ruff_linter::source_kind::SourceKind;
-use ruff_linter::{registry::Rule, RuleSelector};
+use ruff_linter::{RuleSelector, registry::Rule};
 use ruff_python_ast::PySourceType;
 use ruff_python_parser::parse_module;
 
@@ -45,8 +45,8 @@ static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
         target_arch = "powerpc64"
     )
 ))]
+#[unsafe(export_name = "_rjem_malloc_conf")]
 #[expect(non_upper_case_globals)]
-#[export_name = "_rjem_malloc_conf"]
 #[expect(unsafe_code)]
 pub static _rjem_malloc_conf: &[u8] = b"dirty_decay_ms:-1,muzzy_decay_ms:-1\0";
 

crates/ruff_benchmark/benches/parser.rs

@@ -1,13 +1,13 @@
 use ruff_benchmark::criterion;
 
 use criterion::{
-    criterion_group, criterion_main, measurement::WallTime, BenchmarkId, Criterion, Throughput,
+    BenchmarkId, Criterion, Throughput, criterion_group, criterion_main, measurement::WallTime,
 };
 use ruff_benchmark::{
-    TestCase, LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, UNICODE_PYPINYIN,
+    LARGE_DATASET, NUMPY_CTYPESLIB, NUMPY_GLOBALS, PYDANTIC_TYPES, TestCase, UNICODE_PYPINYIN,
 };
-use ruff_python_ast::statement_visitor::{walk_stmt, StatementVisitor};
 use ruff_python_ast::Stmt;
+use ruff_python_ast::statement_visitor::{StatementVisitor, walk_stmt};
 use ruff_python_parser::parse_module;
 
 #[cfg(target_os = "windows")]

crates/ruff_benchmark/benches/ty.rs

@@ -1,22 +1,24 @@
 #![allow(clippy::disallowed_names)]
 use ruff_benchmark::criterion;
+use ruff_benchmark::real_world_projects::{InstalledProject, RealWorldProject};
 
+use std::fmt::Write;
 use std::ops::Range;
 
-use criterion::{criterion_group, criterion_main, BatchSize, Criterion};
+use criterion::{BatchSize, Criterion, criterion_group, criterion_main};
 use rayon::ThreadPoolBuilder;
 use rustc_hash::FxHashSet;
 
 use ruff_benchmark::TestFile;
 use ruff_db::diagnostic::{Diagnostic, DiagnosticId, Severity};
-use ruff_db::files::{system_path_to_file, File};
+use ruff_db::files::{File, system_path_to_file};
 use ruff_db::source::source_text;
-use ruff_db::system::{MemoryFileSystem, SystemPath, SystemPathBuf, TestSystem};
+use ruff_db::system::{InMemorySystem, MemoryFileSystem, SystemPath, SystemPathBuf, TestSystem};
 use ruff_python_ast::PythonVersion;
 use ty_project::metadata::options::{EnvironmentOptions, Options};
-use ty_project::metadata::value::RangedValue;
+use ty_project::metadata::value::{RangedValue, RelativePathBuf};
 use ty_project::watch::{ChangeEvent, ChangedKind};
-use ty_project::{Db, ProjectDatabase, ProjectMetadata};
+use ty_project::{CheckMode, Db, ProjectDatabase, ProjectMetadata};
 
 struct Case {
     db: ProjectDatabase,
@@ -59,13 +61,7 @@ type KeyDiagnosticFields = (
     Severity,
 );
 
-static EXPECTED_TOMLLIB_DIAGNOSTICS: &[KeyDiagnosticFields] = &[(
-    DiagnosticId::lint("unused-ignore-comment"),
-    Some("/src/tomllib/_parser.py"),
-    Some(22299..22333),
-    "Unused blanket `type: ignore` directive",
-    Severity::Warning,
-)];
+static EXPECTED_TOMLLIB_DIAGNOSTICS: &[KeyDiagnosticFields] = &[];
 
 fn tomllib_path(file: &TestFile) -> SystemPathBuf {
     SystemPathBuf::from("src").join(file.name())
@@ -84,7 +80,7 @@ fn setup_tomllib_case() -> Case {
 
     let src_root = SystemPath::new("/src");
     let mut metadata = ProjectMetadata::discover(src_root, &system).unwrap();
-    metadata.apply_cli_options(Options {
+    metadata.apply_options(Options {
         environment: Some(EnvironmentOptions {
             python_version: Some(RangedValue::cli(PythonVersion::PY312)),
             ..EnvironmentOptions::default()
@@ -106,6 +102,7 @@ fn setup_tomllib_case() -> Case {
 
     let re = re.unwrap();
 
+    db.set_check_mode(CheckMode::OpenFiles);
     db.project().set_open_files(&mut db, tomllib_files);
 
     let re_path = re.path(&db).as_system_path().unwrap().to_owned();
@@ -137,7 +134,7 @@ fn benchmark_incremental(criterion: &mut Criterion) {
     fn setup() -> Case {
         let case = setup_tomllib_case();
 
-        let result: Vec<_> = case.db.check().unwrap();
+        let result: Vec<_> = case.db.check();
 
         assert_diagnostics(&case.db, &result, EXPECTED_TOMLLIB_DIAGNOSTICS);
 
@@ -165,7 +162,7 @@ fn benchmark_incremental(criterion: &mut Criterion) {
             None,
         );
 
-        let result = db.check().unwrap();
+        let result = db.check();
 
         assert_eq!(result.len(), EXPECTED_TOMLLIB_DIAGNOSTICS.len());
     }
@@ -185,7 +182,7 @@ fn benchmark_cold(criterion: &mut Criterion) {
             setup_tomllib_case,
             |case| {
                 let Case { db, .. } = case;
-                let result: Vec<_> = db.check().unwrap();
+                let result: Vec<_> = db.check();
 
                 assert_diagnostics(db, &result, EXPECTED_TOMLLIB_DIAGNOSTICS);
             },
@@ -203,7 +200,7 @@ fn assert_diagnostics(db: &dyn Db, diagnostics: &[Diagnostic], expected: &[KeyDi
                 diagnostic.id(),
                 diagnostic
                     .primary_span()
-                    .map(|span| span.file())
+                    .map(|span| span.expect_ty_file())
                     .map(|file| file.path(db).as_str()),
                 diagnostic
                     .primary_span()
@@ -230,7 +227,7 @@ fn setup_micro_case(code: &str) -> Case {
 
     let src_root = SystemPath::new("/src");
     let mut metadata = ProjectMetadata::discover(src_root, &system).unwrap();
-    metadata.apply_cli_options(Options {
+    metadata.apply_options(Options {
         environment: Some(EnvironmentOptions {
             python_version: Some(RangedValue::cli(PythonVersion::PY312)),
             ..EnvironmentOptions::default()
@@ -241,6 +238,7 @@ fn setup_micro_case(code: &str) -> Case {
     let mut db = ProjectDatabase::new(metadata, system).unwrap();
     let file = system_path_to_file(&db, SystemPathBuf::from(file_path)).unwrap();
 
+    db.set_check_mode(CheckMode::OpenFiles);
     db.project()
         .set_open_files(&mut db, FxHashSet::from_iter([file]));
 
@@ -299,7 +297,7 @@ fn benchmark_many_string_assignments(criterion: &mut Criterion) {
             },
             |case| {
                 let Case { db, .. } = case;
-                let result = db.check().unwrap();
+                let result = db.check();
                 assert_eq!(result.len(), 0);
             },
             BatchSize::SmallInput,
@@ -307,6 +305,334 @@ fn benchmark_many_string_assignments(criterion: &mut Criterion) {
     });
 }
 
+fn benchmark_many_tuple_assignments(criterion: &mut Criterion) {
+    setup_rayon();
+
+    criterion.bench_function("ty_micro[many_tuple_assignments]", |b| {
+        b.iter_batched_ref(
+            || {
+                // This is a micro benchmark, but it is effectively identical to a code sample
+                // observed in https://github.com/astral-sh/ty/issues/362
+                setup_micro_case(
+                    r#"
+                    def flag() -> bool:
+                        return True
+
+                    t = ()
+                    if flag():
+                        t += (1,)
+                    if flag():
+                        t += (2,)
+                    if flag():
+                        t += (3,)
+                    if flag():
+                        t += (4,)
+                    if flag():
+                        t += (5,)
+                    if flag():
+                        t += (6,)
+                    if flag():
+                        t += (7,)
+                    if flag():
+                        t += (8,)
+
+                    # Perform some kind of operation on the union type
+                    print(1 in t)
+                    "#,
+                )
+            },
+            |case| {
+                let Case { db, .. } = case;
+                let result = db.check();
+                assert_eq!(result.len(), 0);
+            },
+            BatchSize::SmallInput,
+        );
+    });
+}
+
+fn benchmark_complex_constrained_attributes_1(criterion: &mut Criterion) {
+    setup_rayon();
+
+    criterion.bench_function("ty_micro[complex_constrained_attributes_1]", |b| {
+        b.iter_batched_ref(
+            || {
+                // This is a regression benchmark for https://github.com/astral-sh/ty/issues/627.
+                // Before this was fixed, the following sample would take >1s to type check.
+                setup_micro_case(
+                    r#"
+                    class C:
+                        def f(self: "C"):
+                            if isinstance(self.a, str):
+                                return
+
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                    "#,
+                )
+            },
+            |case| {
+                let Case { db, .. } = case;
+                let result = db.check();
+                assert!(!result.is_empty());
+            },
+            BatchSize::SmallInput,
+        );
+    });
+}
+
+fn benchmark_complex_constrained_attributes_2(criterion: &mut Criterion) {
+    setup_rayon();
+
+    criterion.bench_function("ty_micro[complex_constrained_attributes_2]", |b| {
+        b.iter_batched_ref(
+            || {
+                // This is is similar to the case above, but now the attributes are actually defined.
+                // https://github.com/astral-sh/ty/issues/711
+                setup_micro_case(
+                    r#"
+                    class C:
+                        def f(self: "C"):
+                            self.a = ""
+                            self.b = ""
+
+                            if isinstance(self.a, str):
+                                return
+
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                            if isinstance(self.b, str):
+                                return
+                    "#,
+                )
+            },
+            |case| {
+                let Case { db, .. } = case;
+                let result = db.check();
+                assert_eq!(result.len(), 0);
+            },
+            BatchSize::SmallInput,
+        );
+    });
+}
+
+fn benchmark_many_enum_members(criterion: &mut Criterion) {
+    const NUM_ENUM_MEMBERS: usize = 512;
+
+    setup_rayon();
+
+    let mut code = String::new();
+    writeln!(&mut code, "from enum import Enum").ok();
+
+    writeln!(&mut code, "class E(Enum):").ok();
+    for i in 0..NUM_ENUM_MEMBERS {
+        writeln!(&mut code, "    m{i} = {i}").ok();
+    }
+    writeln!(&mut code).ok();
+
+    for i in 0..NUM_ENUM_MEMBERS {
+        writeln!(&mut code, "print(E.m{i})").ok();
+    }
+
+    criterion.bench_function("ty_micro[many_enum_members]", |b| {
+        b.iter_batched_ref(
+            || setup_micro_case(&code),
+            |case| {
+                let Case { db, .. } = case;
+                let result = db.check();
+                assert_eq!(result.len(), 0);
+            },
+            BatchSize::SmallInput,
+        );
+    });
+}
+
+struct ProjectBenchmark<'a> {
+    project: InstalledProject<'a>,
+    fs: MemoryFileSystem,
+    max_diagnostics: usize,
+}
+
+impl<'a> ProjectBenchmark<'a> {
+    fn new(project: RealWorldProject<'a>, max_diagnostics: usize) -> Self {
+        let setup_project = project.setup().expect("Failed to setup project");
+        let fs = setup_project
+            .copy_to_memory_fs()
+            .expect("Failed to copy project to memory fs");
+
+        Self {
+            project: setup_project,
+            fs,
+            max_diagnostics,
+        }
+    }
+
+    fn setup_iteration(&self) -> ProjectDatabase {
+        let system = TestSystem::new(InMemorySystem::from_memory_fs(self.fs.clone()));
+
+        let src_root = SystemPath::new("/");
+        let mut metadata = ProjectMetadata::discover(src_root, &system).unwrap();
+
+        metadata.apply_options(Options {
+            environment: Some(EnvironmentOptions {
+                python_version: Some(RangedValue::cli(self.project.config.python_version)),
+                python: Some(RelativePathBuf::cli(SystemPath::new(".venv"))),
+                ..EnvironmentOptions::default()
+            }),
+            ..Options::default()
+        });
+
+        let mut db = ProjectDatabase::new(metadata, system).unwrap();
+
+        db.project().set_included_paths(
+            &mut db,
+            self.project
+                .check_paths()
+                .iter()
+                .map(|path| path.to_path_buf())
+                .collect(),
+        );
+
+        db
+    }
+}
+
+#[track_caller]
+fn bench_project(benchmark: &ProjectBenchmark, criterion: &mut Criterion) {
+    fn check_project(db: &mut ProjectDatabase, project_name: &str, max_diagnostics: usize) {
+        let result = db.check();
+        let diagnostics = result.len();
+
+        if diagnostics > max_diagnostics {
+            let details = result
+                .into_iter()
+                .map(|diagnostic| diagnostic.concise_message().to_string())
+                .collect::<Vec<_>>()
+                .join("\n  ");
+            assert!(
+                diagnostics <= max_diagnostics,
+                "{project_name}: Expected <={max_diagnostics} diagnostics but got {diagnostics}:\n  {details}",
+            );
+        }
+    }
+
+    setup_rayon();
+
+    let mut group = criterion.benchmark_group("project");
+    group.sampling_mode(criterion::SamplingMode::Flat);
+    group.bench_function(benchmark.project.config.name, |b| {
+        b.iter_batched_ref(
+            || benchmark.setup_iteration(),
+            |db| check_project(db, benchmark.project.config.name, benchmark.max_diagnostics),
+            BatchSize::SmallInput,
+        );
+    });
+}
+
+fn hydra(criterion: &mut Criterion) {
+    let benchmark = ProjectBenchmark::new(
+        RealWorldProject {
+            name: "hydra-zen",
+            repository: "https://github.com/mit-ll-responsible-ai/hydra-zen",
+            commit: "dd2b50a9614c6f8c46c5866f283c8f7e7a960aa8",
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec!["pydantic", "beartype", "hydra-core"],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY313,
+        },
+        100,
+    );
+
+    bench_project(&benchmark, criterion);
+}
+
+fn attrs(criterion: &mut Criterion) {
+    let benchmark = ProjectBenchmark::new(
+        RealWorldProject {
+            name: "attrs",
+            repository: "https://github.com/python-attrs/attrs",
+            commit: "a6ae894aad9bc09edc7cdad8c416898784ceec9b",
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec![],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY313,
+        },
+        100,
+    );
+
+    bench_project(&benchmark, criterion);
+}
+
+fn anyio(criterion: &mut Criterion) {
+    let benchmark = ProjectBenchmark::new(
+        RealWorldProject {
+            name: "anyio",
+            repository: "https://github.com/agronholm/anyio",
+            commit: "561d81270a12f7c6bbafb5bc5fad99a2a13f96be",
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec![],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY313,
+        },
+        100,
+    );
+
+    bench_project(&benchmark, criterion);
+}
+
+fn datetype(criterion: &mut Criterion) {
+    let benchmark = ProjectBenchmark::new(
+        RealWorldProject {
+            name: "DateType",
+            repository: "https://github.com/glyph/DateType",
+            commit: "57c9c93cf2468069f72945fc04bf27b64100dad8",
+            paths: vec![SystemPath::new("src")],
+            dependencies: vec![],
+            max_dep_date: "2025-07-04",
+            python_version: PythonVersion::PY313,
+        },
+        2,
+    );
+
+    bench_project(&benchmark, criterion);
+}
+
 criterion_group!(check_file, benchmark_cold, benchmark_incremental);
-criterion_group!(micro, benchmark_many_string_assignments);
-criterion_main!(check_file, micro);
+criterion_group!(
+    micro,
+    benchmark_many_string_assignments,
+    benchmark_many_tuple_assignments,
+    benchmark_complex_constrained_attributes_1,
+    benchmark_complex_constrained_attributes_2,
+    benchmark_many_enum_members,
+);
+criterion_group!(project, anyio, attrs, hydra, datetype);
+criterion_main!(check_file, micro, project);

crates/ruff_benchmark/benches/ty_walltime.rs

@@ -0,0 +1,281 @@
+use std::fmt::{Display, Formatter};
+
+use divan::{Bencher, bench};
+
+use rayon::ThreadPoolBuilder;
+use ruff_benchmark::real_world_projects::{InstalledProject, RealWorldProject};
+use ruff_db::system::{OsSystem, SystemPath, SystemPathBuf};
+
+use ruff_db::testing::setup_logging_with_filter;
+use ruff_python_ast::PythonVersion;
+use ty_project::metadata::options::{EnvironmentOptions, Options};
+use ty_project::metadata::value::{RangedValue, RelativePathBuf};
+use ty_project::{Db, ProjectDatabase, ProjectMetadata};
+
+struct Benchmark<'a> {
+    project: InstalledProject<'a>,
+    max_diagnostics: usize,
+}
+
+impl<'a> Benchmark<'a> {
+    fn new(project: RealWorldProject<'a>, max_diagnostics: usize) -> Self {
+        let setup_project = project.setup().expect("Failed to setup project");
+
+        Self {
+            project: setup_project,
+            max_diagnostics,
+        }
+    }
+
+    fn setup_iteration(&self) -> ProjectDatabase {
+        let root = SystemPathBuf::from_path_buf(self.project.path.clone()).unwrap();
+        let system = OsSystem::new(&root);
+
+        let mut metadata = ProjectMetadata::discover(&root, &system).unwrap();
+
+        metadata.apply_options(Options {
+            environment: Some(EnvironmentOptions {
+                python_version: Some(RangedValue::cli(self.project.config.python_version)),
+                python: Some(RelativePathBuf::cli(SystemPath::new(".venv"))),
+                ..EnvironmentOptions::default()
+            }),
+            ..Options::default()
+        });
+
+        let mut db = ProjectDatabase::new(metadata, system).unwrap();
+
+        db.project().set_included_paths(
+            &mut db,
+            self.project
+                .check_paths()
+                .iter()
+                .map(|path| SystemPath::absolute(path, &root))
+                .collect(),
+        );
+        db
+    }
+}
+
+impl Display for Benchmark<'_> {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        f.write_str(self.project.config.name)
+    }
+}
+
+fn check_project(db: &ProjectDatabase, max_diagnostics: usize) {
+    let result = db.check();
+    let diagnostics = result.len();
+
+    assert!(
+        diagnostics > 1 && diagnostics <= max_diagnostics,
+        "Expected between {} and {} diagnostics but got {}",
+        1,
+        max_diagnostics,
+        diagnostics
+    );
+}
+
+static ALTAIR: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "altair",
+            repository: "https://github.com/vega/altair",
+            commit: "d1f4a1ef89006e5f6752ef1f6df4b7a509336fba",
+            paths: vec![SystemPath::new("altair")],
+            dependencies: vec![
+                "jinja2",
+                "narwhals",
+                "numpy",
+                "packaging",
+                "pandas-stubs",
+                "pyarrow-stubs",
+                "pytest",
+                "scipy-stubs",
+                "types-jsonschema",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        1000,
+    )
+});
+
+static COLOUR_SCIENCE: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "colour-science",
+            repository: "https://github.com/colour-science/colour",
+            commit: "a17e2335c29e7b6f08080aa4c93cfa9b61f84757",
+            paths: vec![SystemPath::new("colour")],
+            dependencies: vec![
+                "matplotlib",
+                "numpy",
+                "pandas-stubs",
+                "pytest",
+                "scipy-stubs",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY310,
+        },
+        477,
+    )
+});
+
+static FREQTRADE: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "freqtrade",
+            repository: "https://github.com/freqtrade/freqtrade",
+            commit: "2d842ea129e56575852ee0c45383c8c3f706be19",
+            paths: vec![SystemPath::new("freqtrade")],
+            dependencies: vec![
+                "numpy",
+                "pandas-stubs",
+                "pydantic",
+                "sqlalchemy",
+                "types-cachetools",
+                "types-filelock",
+                "types-python-dateutil",
+                "types-requests",
+                "types-tabulate",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        400,
+    )
+});
+
+static PANDAS: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "pandas",
+            repository: "https://github.com/pandas-dev/pandas",
+            commit: "5909621e2267eb67943a95ef5e895e8484c53432",
+            paths: vec![SystemPath::new("pandas")],
+            dependencies: vec![
+                "numpy",
+                "types-python-dateutil",
+                "types-pytz",
+                "types-PyMySQL",
+                "types-setuptools",
+                "pytest",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        3000,
+    )
+});
+
+static PYDANTIC: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "pydantic",
+            repository: "https://github.com/pydantic/pydantic",
+            commit: "0c4a22b64b23dfad27387750cf07487efc45eb05",
+            paths: vec![SystemPath::new("pydantic")],
+            dependencies: vec![
+                "annotated-types",
+                "pydantic-core",
+                "typing-extensions",
+                "typing-inspection",
+            ],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY39,
+        },
+        1000,
+    )
+});
+
+static SYMPY: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "sympy",
+            repository: "https://github.com/sympy/sympy",
+            commit: "22fc107a94eaabc4f6eb31470b39db65abb7a394",
+            paths: vec![SystemPath::new("sympy")],
+            dependencies: vec!["mpmath"],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        13000,
+    )
+});
+
+static TANJUN: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
+    Benchmark::new(
+        RealWorldProject {
+            name: "tanjun",
+            repository: "https://github.com/FasterSpeeding/Tanjun",
+            commit: "69f40db188196bc59516b6c69849c2d85fbc2f4a",
+            paths: vec![SystemPath::new("tanjun")],
+            dependencies: vec!["hikari", "alluka"],
+            max_dep_date: "2025-06-17",
+            python_version: PythonVersion::PY312,
+        },
+        100,
+    )
+});
+
+#[track_caller]
+fn run_single_threaded(bencher: Bencher, benchmark: &Benchmark) {
+    bencher
+        .with_inputs(|| benchmark.setup_iteration())
+        .bench_local_refs(|db| {
+            check_project(db, benchmark.max_diagnostics);
+        });
+}
+
+#[bench(args=[&*ALTAIR, &*FREQTRADE, &*PYDANTIC, &*TANJUN], sample_size=2, sample_count=3)]
+fn small(bencher: Bencher, benchmark: &Benchmark) {
+    run_single_threaded(bencher, benchmark);
+}
+
+#[bench(args=[&*COLOUR_SCIENCE, &*PANDAS], sample_size=1, sample_count=3)]
+fn medium(bencher: Bencher, benchmark: &Benchmark) {
+    run_single_threaded(bencher, benchmark);
+}
+
+#[bench(args=[&*SYMPY], sample_size=1, sample_count=2)]
+fn large(bencher: Bencher, benchmark: &Benchmark) {
+    run_single_threaded(bencher, benchmark);
+}
+
+#[bench(args=[&*PYDANTIC], sample_size=3, sample_count=8)]
+fn multithreaded(bencher: Bencher, benchmark: &Benchmark) {
+    let thread_pool = ThreadPoolBuilder::new().build().unwrap();
+
+    bencher
+        .with_inputs(|| benchmark.setup_iteration())
+        .bench_local_values(|db| {
+            thread_pool.install(|| {
+                check_project(&db, benchmark.max_diagnostics);
+                db
+            })
+        });
+}
+
+fn main() {
+    ThreadPoolBuilder::new()
+        .num_threads(1)
+        .use_current_thread()
+        .build_global()
+        .unwrap();
+
+    let filter =
+        std::env::var("TY_LOG").unwrap_or("ty_walltime=info,ruff_benchmark=info".to_string());
+
+    let _logging = setup_logging_with_filter(&filter).expect("Filter to be valid");
+
+    // Salsa uses an optimized lookup for the ingredient index when using only a single database.
+    // This optimization results in at least a 10% speedup compared to when using multiple databases.
+    // To reduce noise, run one benchmark so that all benchmarks take the less optimized "not the first db"
+    // branch when looking up the ingredient index.
+    {
+        let db = TANJUN.setup_iteration();
+        check_project(&db, TANJUN.max_diagnostics);
+    }
+
+    divan::main();
+}

crates/ruff_benchmark/src/lib.rs

@@ -1,6 +1,8 @@
 use std::path::PathBuf;
 
+#[cfg(feature = "instrumented")]
 pub mod criterion;
+pub mod real_world_projects;
 
 pub static NUMPY_GLOBALS: TestFile = TestFile::new(
     "numpy/globals.py",

crates/ruff_benchmark/src/real_world_projects.rs

@@ -0,0 +1,398 @@
+#![allow(clippy::print_stderr)]
+
+//! Infrastructure for benchmarking real-world Python projects.
+//!
+//! The module uses a setup similar to mypy primer's, which should make it easy
+//! to add new benchmarks for projects in [mypy primer's project's list](https://github.com/hauntsaninja/mypy_primer/blob/ebaa9fd27b51a278873b63676fd25490cec6823b/mypy_primer/projects.py#L74).
+//!
+//! The basic steps for a project are:
+//! 1. Clone or update the project into a directory inside `./target`. The commits are pinnted to prevent flaky benchmark results due to new commits.
+//! 2. For projects with dependencies, run uv to create a virtual environment and install the dependencies.
+//! 3. (optionally) Copy the entire project structure into a memory file system to reduce the IO noise in benchmarks.
+//! 4. (not in this module) Create a `ProjectDatabase` and run the benchmark.
+
+use std::ffi::OsStr;
+use std::path::{Path, PathBuf};
+use std::process::Command;
+use std::time::Instant;
+
+use anyhow::{Context, Result};
+use ruff_db::system::{MemoryFileSystem, SystemPath, SystemPathBuf};
+use ruff_python_ast::PythonVersion;
+
+/// Configuration for a real-world project to benchmark
+#[derive(Debug, Clone)]
+pub struct RealWorldProject<'a> {
+    // The name of the project.
+    pub name: &'a str,
+    /// The project's GIT repository. Must be publicly accessible.
+    pub repository: &'a str,
+    /// Specific commit hash to checkout
+    pub commit: &'a str,
+    /// List of paths within the project to check (`ty check <paths>`)
+    pub paths: Vec<&'a SystemPath>,
+    /// Dependencies to install via uv
+    pub dependencies: Vec<&'a str>,
+    /// Limit candidate packages to those that were uploaded prior to a given point in time (ISO 8601 format).
+    /// Maps to uv's `exclude-newer`.
+    pub max_dep_date: &'a str,
+    /// Python version to use
+    pub python_version: PythonVersion,
+}
+
+impl<'a> RealWorldProject<'a> {
+    /// Setup a real-world project for benchmarking
+    pub fn setup(self) -> Result<InstalledProject<'a>> {
+        let start = Instant::now();
+        tracing::debug!("Setting up project {}", self.name);
+
+        // Create project directory in cargo target
+        let project_root = get_project_cache_dir(self.name)?;
+
+        // Clone the repository if it doesn't exist, or update if it does
+        if project_root.exists() {
+            tracing::debug!("Updating repository for project '{}'...", self.name);
+            let start = std::time::Instant::now();
+            update_repository(&project_root, self.commit)?;
+            tracing::debug!(
+                "Repository update completed in {:.2}s",
+                start.elapsed().as_secs_f64()
+            );
+        } else {
+            tracing::debug!("Cloning repository for project '{}'...", self.name);
+            let start = std::time::Instant::now();
+            clone_repository(self.repository, &project_root, self.commit)?;
+            tracing::debug!(
+                "Repository clone completed in {:.2}s",
+                start.elapsed().as_secs_f64()
+            );
+        }
+
+        let checkout = Checkout {
+            path: project_root,
+            project: self,
+        };
+
+        // Install dependencies if specified
+        tracing::debug!(
+            "Installing {} dependencies for project '{}'...",
+            checkout.project().dependencies.len(),
+            checkout.project().name
+        );
+        let start_install = std::time::Instant::now();
+        install_dependencies(&checkout)?;
+        tracing::debug!(
+            "Dependency installation completed in {:.2}s",
+            start_install.elapsed().as_secs_f64()
+        );
+
+        tracing::debug!("Project setup took: {:.2}s", start.elapsed().as_secs_f64());
+
+        Ok(InstalledProject {
+            path: checkout.path,
+            config: checkout.project,
+        })
+    }
+}
+
+struct Checkout<'a> {
+    project: RealWorldProject<'a>,
+    path: PathBuf,
+}
+
+impl<'a> Checkout<'a> {
+    /// Get the virtual environment path
+    fn venv_path(&self) -> PathBuf {
+        self.path.join(".venv")
+    }
+
+    fn project(&self) -> &RealWorldProject<'a> {
+        &self.project
+    }
+}
+
+/// Checked out project with its dependencies installed.
+pub struct InstalledProject<'a> {
+    /// Path to the cloned project
+    pub path: PathBuf,
+    /// Project configuration
+    pub config: RealWorldProject<'a>,
+}
+
+impl<'a> InstalledProject<'a> {
+    /// Get the project configuration
+    pub fn config(&self) -> &RealWorldProject<'a> {
+        &self.config
+    }
+
+    /// Get the benchmark paths as `SystemPathBuf`
+    pub fn check_paths(&self) -> &[&SystemPath] {
+        &self.config.paths
+    }
+
+    /// Get the virtual environment path
+    pub fn venv_path(&self) -> PathBuf {
+        self.path.join(".venv")
+    }
+
+    /// Copies the entire project to a memory file system.
+    pub fn copy_to_memory_fs(&self) -> anyhow::Result<MemoryFileSystem> {
+        let fs = MemoryFileSystem::new();
+
+        copy_directory_recursive(&fs, &self.path, &SystemPathBuf::from("/"))?;
+
+        Ok(fs)
+    }
+}
+
+/// Get the cache directory for a project in the cargo target directory
+fn get_project_cache_dir(project_name: &str) -> Result<std::path::PathBuf> {
+    let target_dir = cargo_target_directory()
+        .cloned()
+        .unwrap_or_else(|| PathBuf::from("target"));
+    let target_dir =
+        std::path::absolute(target_dir).context("Failed to construct an absolute path")?;
+    let cache_dir = target_dir.join("benchmark_cache").join(project_name);
+
+    if let Some(parent) = cache_dir.parent() {
+        std::fs::create_dir_all(parent).context("Failed to create cache directory")?;
+    }
+
+    Ok(cache_dir)
+}
+
+/// Update an existing repository
+fn update_repository(project_root: &Path, commit: &str) -> Result<()> {
+    let output = Command::new("git")
+        .args(["fetch", "origin", commit])
+        .current_dir(project_root)
+        .output()
+        .context("Failed to execute git fetch command")?;
+
+    if !output.status.success() {
+        anyhow::bail!(
+            "Git fetch of commit {} failed: {}",
+            commit,
+            String::from_utf8_lossy(&output.stderr)
+        );
+    }
+
+    // Checkout specific commit
+    let output = Command::new("git")
+        .args(["checkout", commit])
+        .current_dir(project_root)
+        .output()
+        .context("Failed to execute git checkout command")?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "Git checkout of commit {} failed: {}",
+        commit,
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    Ok(())
+}
+
+/// Clone a git repository to the specified directory
+fn clone_repository(repo_url: &str, target_dir: &Path, commit: &str) -> Result<()> {
+    // Create parent directory if it doesn't exist
+    if let Some(parent) = target_dir.parent() {
+        std::fs::create_dir_all(parent).context("Failed to create parent directory for clone")?;
+    }
+
+    // Clone with minimal depth and fetch only the specific commit
+    let output = Command::new("git")
+        .args([
+            "clone",
+            "--filter=blob:none", // Don't download large files initially
+            "--no-checkout",      // Don't checkout files yet
+            repo_url,
+            target_dir.to_str().unwrap(),
+        ])
+        .output()
+        .context("Failed to execute git clone command")?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "Git clone failed: {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    // Fetch the specific commit
+    let output = Command::new("git")
+        .args(["fetch", "origin", commit])
+        .current_dir(target_dir)
+        .output()
+        .context("Failed to execute git fetch command")?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "Git fetch of commit {} failed: {}",
+        commit,
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    // Checkout the specific commit
+    let output = Command::new("git")
+        .args(["checkout", commit])
+        .current_dir(target_dir)
+        .output()
+        .context("Failed to execute git checkout command")?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "Git checkout of commit {} failed: {}",
+        commit,
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    Ok(())
+}
+
+/// Install dependencies using uv with date constraints
+fn install_dependencies(checkout: &Checkout) -> Result<()> {
+    // Check if uv is available
+    let uv_check = Command::new("uv")
+        .arg("--version")
+        .output()
+        .context("Failed to execute uv version check.")?;
+
+    if !uv_check.status.success() {
+        anyhow::bail!(
+            "uv is not installed or not found in PATH. If you need to install it, follow the instructions at https://docs.astral.sh/uv/getting-started/installation/"
+        );
+    }
+
+    let venv_path = checkout.venv_path();
+    let python_version_str = checkout.project().python_version.to_string();
+
+    let output = Command::new("uv")
+        .args(["venv", "--python", &python_version_str, "--allow-existing"])
+        .arg(&venv_path)
+        .output()
+        .context("Failed to execute uv venv command")?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "Failed to create virtual environment: {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    if checkout.project().dependencies.is_empty() {
+        tracing::debug!(
+            "No dependencies to install for project '{}'",
+            checkout.project().name
+        );
+        return Ok(());
+    }
+
+    // Install dependencies with date constraint in the isolated environment
+    let mut cmd = Command::new("uv");
+    cmd.args([
+        "pip",
+        "install",
+        "--python",
+        venv_path.to_str().unwrap(),
+        "--exclude-newer",
+        checkout.project().max_dep_date,
+    ])
+    .args(&checkout.project().dependencies);
+
+    let output = cmd
+        .output()
+        .context("Failed to execute uv pip install command")?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "Dependency installation failed: {}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    Ok(())
+}
+
+/// Recursively load a directory into the memory filesystem
+fn copy_directory_recursive(
+    fs: &MemoryFileSystem,
+    source_path: &Path,
+    dest_path: &SystemPath,
+) -> Result<()> {
+    if source_path.is_file() {
+        if source_path.file_name().and_then(OsStr::to_str) == Some("pyvenv.cfg") {
+            // Skip pyvenv.cfg files because the Python path will be invalid.
+            return Ok(());
+        }
+
+        match std::fs::read_to_string(source_path) {
+            Ok(content) => {
+                fs.write_file_all(dest_path.to_path_buf(), content)
+                    .with_context(|| {
+                        format!("Failed to write file to memory filesystem: {dest_path}")
+                    })?;
+            }
+            Err(error) => {
+                if error.kind() == std::io::ErrorKind::InvalidData {
+                    // Skip binary files.
+                    return Ok(());
+                }
+                return Err(error)
+                    .with_context(|| format!("Failed to read file: {}", source_path.display()));
+            }
+        }
+    } else if source_path.is_dir() {
+        // Create directory in memory fs
+        fs.create_directory_all(dest_path.to_path_buf())
+            .with_context(|| {
+                format!("Failed to create directory in memory filesystem: {dest_path}")
+            })?;
+
+        // Read directory contents
+        let entries = std::fs::read_dir(source_path)
+            .with_context(|| format!("Failed to read directory: {}", source_path.display()))?;
+
+        for entry in entries {
+            let entry = entry.with_context(|| {
+                format!("Failed to read directory entry: {}", source_path.display())
+            })?;
+
+            let file_name = entry.file_name();
+            let file_name = file_name.to_str().context("Expected UTF8 path")?;
+            let source_child = source_path.join(file_name);
+            let dest_child = dest_path.join(file_name);
+
+            // Skip hidden files and common non-Python directories
+            if file_name != ".venv" && (file_name.starts_with('.') || matches!(file_name, ".git")) {
+                continue;
+            }
+
+            copy_directory_recursive(fs, &source_child, &dest_child)?;
+        }
+    }
+
+    Ok(())
+}
+
+static CARGO_TARGET_DIR: std::sync::OnceLock<Option<PathBuf>> = std::sync::OnceLock::new();
+
+fn cargo_target_directory() -> Option<&'static PathBuf> {
+    CARGO_TARGET_DIR
+        .get_or_init(|| {
+            #[derive(serde::Deserialize)]
+            struct Metadata {
+                target_directory: PathBuf,
+            }
+
+            std::env::var_os("CARGO_TARGET_DIR")
+                .map(PathBuf::from)
+                .or_else(|| {
+                    let output = Command::new(std::env::var_os("CARGO")?)
+                        .args(["metadata", "--format-version", "1"])
+                        .output()
+                        .ok()?;
+                    let metadata: Metadata = serde_json::from_slice(&output.stdout).ok()?;
+                    Some(metadata.target_directory)
+                })
+        })
+        .as_ref()
+}

crates/ruff_cache/src/cache_key.rs

@@ -2,8 +2,8 @@ use std::borrow::Cow;
 use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 use std::hash::{Hash, Hasher};
 use std::num::{
-    NonZeroI128, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI8, NonZeroU128, NonZeroU16,
-    NonZeroU32, NonZeroU64, NonZeroU8,
+    NonZeroI8, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI128, NonZeroU8, NonZeroU16, NonZeroU32,
+    NonZeroU64, NonZeroU128,
 };
 use std::path::{Path, PathBuf};