don't do nested bindings inference if we have a declared type

stop tracking implicit (read-only) free variables
addressing some of Micha's comments
2025-08-08 15:54:56 -07:00 · 2025-08-08 13:22:01 -07:00 · 2025-08-08 09:05:50 -07:00 · 2025-08-07 20:39:10 -07:00
3092 changed files with 153882 additions and 183679 deletions
--- a/.github/workflows/build-binaries.yml
+++ b/.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@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        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@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        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@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        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@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        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@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
        with:
          target: ${{ matrix.target }}
          manylinux: auto
@@ -292,8 +292,6 @@ jobs:
            maturin_docker_options: -e JEMALLOC_SYS_WITH_LG_PAGE=16
          - target: arm-unknown-linux-musleabihf
            arch: arm
-          - target: riscv64gc-unknown-linux-gnu
-            arch: riscv64

    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -306,7 +304,7 @@ jobs:
      - name: "Prep README.md"
        run: python scripts/transform_readme.py --target pypi
      - name: "Build wheels"
-        uses: PyO3/maturin-action@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
        with:
          target: ${{ matrix.platform.target }}
          manylinux: auto
@@ -321,7 +319,7 @@ jobs:
          githubToken: ${{ github.token }}
          install: |
            apt-get update
-            apt-get install -y --no-install-recommends python3 python3-pip libatomic1
+            apt-get install -y --no-install-recommends python3 python3-pip
            pip3 install -U pip
          run: |
            pip3 install ${{ env.PACKAGE_NAME }} --no-index --find-links dist/ --force-reinstall
@@ -372,7 +370,7 @@ jobs:
      - name: "Prep README.md"
        run: python scripts/transform_readme.py --target pypi
      - name: "Build wheels"
-        uses: PyO3/maturin-action@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
        with:
          target: ${{ matrix.target }}
          manylinux: musllinux_1_2
@@ -437,7 +435,7 @@ jobs:
      - name: "Prep README.md"
        run: python scripts/transform_readme.py --target pypi
      - name: "Build wheels"
-        uses: PyO3/maturin-action@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
        with:
          target: ${{ matrix.platform.target }}
          manylinux: musllinux_1_2
--- a/.github/workflows/build-docker.yml
+++ b/.github/workflows/build-docker.yml
@@ -40,7 +40,7 @@ jobs:

      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1

-      - uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
@@ -131,7 +131,7 @@ jobs:
            type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
            type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}

-      - uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
@@ -169,7 +169,7 @@ jobs:
    steps:
      - uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1

-      - uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
@@ -276,7 +276,7 @@ jobs:
            type=pep440,pattern={{ version }},value=${{ fromJson(inputs.plan).announcement_tag }}
            type=pep440,pattern={{ major }}.{{ minor }},value=${{ fromJson(inputs.plan).announcement_tag }}

-      - uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
+      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -38,8 +38,7 @@ jobs:
      fuzz: ${{ steps.check_fuzzer.outputs.changed }}
      # Flag that is set to "true" when code related to ty changes.
      ty: ${{ steps.check_ty.outputs.changed }}
-      # Flag that is set to "true" when code related to the py-fuzzer folder changes.
-      py-fuzzer: ${{ steps.check_py_fuzzer.outputs.changed }}
+
      # Flag that is set to "true" when code related to the playground changes.
      playground: ${{ steps.check_playground.outputs.changed }}
    steps:
@@ -69,6 +68,7 @@ jobs:
            ':crates/ruff_text_size/**' \
            ':crates/ruff_python_ast/**' \
            ':crates/ruff_python_parser/**' \
+            ':python/py-fuzzer/**' \
            ':.github/workflows/ci.yaml' \
          ; then
              echo "changed=false" >> "$GITHUB_OUTPUT"
@@ -138,18 +138,6 @@ jobs:
              echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

-      - name: Check if the py-fuzzer code changed
-        id: check_py_fuzzer
-        env:
-          MERGE_BASE: ${{ steps.merge_base.outputs.sha }}
-        run: |
-          if git diff --quiet "${MERGE_BASE}...HEAD" -- 'python/py_fuzzer/**' \
-          ; then
-              echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-              echo "changed=true" >> "$GITHUB_OUTPUT"
-          fi
-
      - name: Check if there was any code related change
        id: check_code
        env:
@@ -250,7 +238,7 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
      - name: "Install cargo nextest"
        uses: taiki-e/install-action@6064345e6658255e90e9500fdf9a06ab77e6909c # v2.57.6
        with:
@@ -259,10 +247,6 @@ jobs:
        uses: taiki-e/install-action@6064345e6658255e90e9500fdf9a06ab77e6909c # v2.57.6
        with:
          tool: cargo-insta
-      - name: "Install uv"
-        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
-        with:
-          enable-cache: "true"
      - name: ty mdtests (GitHub annotations)
        if: ${{ needs.determine_changes.outputs.ty == 'true' }}
        env:
@@ -312,7 +296,7 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
      - name: "Install cargo nextest"
        uses: taiki-e/install-action@6064345e6658255e90e9500fdf9a06ab77e6909c # v2.57.6
        with:
@@ -321,10 +305,6 @@ jobs:
        uses: taiki-e/install-action@6064345e6658255e90e9500fdf9a06ab77e6909c # v2.57.6
        with:
          tool: cargo-insta
-      - name: "Install uv"
-        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
-        with:
-          enable-cache: "true"
      - name: "Run tests"
        shell: bash
        env:
@@ -348,10 +328,6 @@ jobs:
        uses: taiki-e/install-action@6064345e6658255e90e9500fdf9a06ab77e6909c # v2.57.6
        with:
          tool: cargo-nextest
-      - name: "Install uv"
-        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
-        with:
-          enable-cache: "true"
      - name: "Run tests"
        shell: bash
        env:
@@ -405,7 +381,7 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
      - name: "Build"
        run: cargo build --release --locked

@@ -430,7 +406,7 @@ jobs:
          MSRV: ${{ steps.msrv.outputs.value }}
        run: rustup default "${MSRV}"
      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+        uses: rui314/setup-mold@702b1908b5edf30d71a8d1666b724e0f0c6fa035 # v1
      - name: "Build tests"
        shell: bash
        env:
@@ -453,7 +429,9 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install cargo-binstall"
-        uses: cargo-bins/cargo-binstall@837578dfb436769f1e6669b2e23ffea9d9d2da8f # v1.15.4
+        uses: cargo-bins/cargo-binstall@dd6a0ac24caa1243d18df0f770b941e990e8facc # v1.14.3
+        with:
+          tool: cargo-fuzz@0.11.2
      - name: "Install cargo-fuzz"
        # Download the latest version from quick install and not the github releases because github releases only has MUSL targets.
        run: cargo binstall cargo-fuzz --force  --disable-strategies crate-meta-data --no-confirm
@@ -465,7 +443,7 @@ jobs:
    needs:
      - cargo-test-linux
      - determine_changes
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.parser == 'true' || needs.determine_changes.outputs.py-fuzzer == 'true') }}
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && needs.determine_changes.outputs.parser == 'true' }}
    timeout-minutes: 20
    env:
      FORCE_COLOR: 1
@@ -473,7 +451,7 @@ jobs:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - 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
@@ -655,7 +633,7 @@ jobs:
      - cargo-test-linux
      - determine_changes
    # Only runs on pull requests, since that is the only we way we can find the base version for comparison.
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && github.event_name == 'pull_request' && (needs.determine_changes.outputs.ty == 'true' || needs.determine_changes.outputs.py-fuzzer == 'true') }}
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && github.event_name == 'pull_request' && needs.determine_changes.outputs.ty == 'true' }}
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -674,7 +652,7 @@ jobs:
          branch: ${{ github.event.pull_request.base.ref }}
          workflow: "ci.yaml"
          check_artifacts: true
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
      - name: Fuzz
        env:
          FORCE_COLOR: 1
@@ -704,7 +682,7 @@ jobs:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
-      - uses: cargo-bins/cargo-binstall@837578dfb436769f1e6669b2e23ffea9d9d2da8f # v1.15.4
+      - uses: cargo-bins/cargo-binstall@dd6a0ac24caa1243d18df0f770b941e990e8facc # v1.14.3
      - run: cargo binstall --no-confirm cargo-shear
      - run: cargo shear

@@ -725,7 +703,7 @@ jobs:
      - name: "Prep README.md"
        run: python scripts/transform_readme.py --target pypi
      - name: "Build wheels"
-        uses: PyO3/maturin-action@86b9d133d34bc1b40018696f782949dac11bd380 # v1.49.4
+        uses: PyO3/maturin-action@e10f6c464b90acceb5f640d31beda6d586ba7b4a # v1.49.3
        with:
          args: --out dist
      - name: "Test wheel"
@@ -744,13 +722,13 @@ jobs:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - 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@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
        with:
          path: ~/.cache/pre-commit
          key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
@@ -787,7 +765,7 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup show
      - name: Install uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        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
@@ -919,7 +897,7 @@ jobs:
          persist-credentials: false

      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3

      - name: "Install Rust toolchain"
        run: rustup show
@@ -933,7 +911,7 @@ jobs:
        run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark

      - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@76578c2a7ddd928664caa737f0e962e3085d4e7c # v3.8.1
+        uses: CodSpeedHQ/action@0b6e7a3d96c9d2a6057e7bcea6b45aaf2f7ce60b # v3.8.0
        with:
          run: cargo codspeed run
          token: ${{ secrets.CODSPEED_TOKEN }}
@@ -952,7 +930,7 @@ jobs:
          persist-credentials: false

      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3

      - name: "Install Rust toolchain"
        run: rustup show
@@ -966,7 +944,7 @@ jobs:
        run: cargo codspeed build --features "codspeed,walltime" --no-default-features -p ruff_benchmark

      - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@76578c2a7ddd928664caa737f0e962e3085d4e7c # v3.8.1
+        uses: CodSpeedHQ/action@0b6e7a3d96c9d2a6057e7bcea6b45aaf2f7ce60b # v3.8.0
        with:
          run: cargo codspeed run
          token: ${{ secrets.CODSPEED_TOKEN }}
--- a/.github/workflows/daily_fuzz.yaml
+++ b/.github/workflows/daily_fuzz.yaml
@@ -34,11 +34,11 @@ jobs:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+        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,
--- a/.github/workflows/mypy_primer.yaml
+++ b/.github/workflows/mypy_primer.yaml
@@ -11,7 +11,6 @@ on:
      - "crates/ruff_python_parser"
      - ".github/workflows/mypy_primer.yaml"
      - ".github/workflows/mypy_primer_comment.yaml"
-      - "scripts/mypy_primer.sh"
      - "Cargo.lock"
      - "!**.md"

@@ -39,7 +38,7 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3

      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
        with:
@@ -82,7 +81,7 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3

      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
        with:
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -22,7 +22,7 @@ jobs:
      id-token: write
    steps:
      - name: "Install uv"
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
          pattern: wheels-*
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -61,7 +61,7 @@ jobs:
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
        with:
          persist-credentials: false
          submodules: recursive
@@ -124,19 +124,19 @@ jobs:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      BUILD_MANIFEST_NAME: target/distrib/global-dist-manifest.json
    steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
        with:
          persist-credentials: false
          submodules: recursive
      - name: Install cached dist
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
        with:
          name: cargo-dist-cache
          path: ~/.cargo/bin/
      - run: chmod +x ~/.cargo/bin/dist
      # Get all the local artifacts for the global tasks to use (for e.g. checksums)
      - name: Fetch local artifacts
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
        with:
          pattern: artifacts-*
          path: target/distrib/
@@ -175,19 +175,19 @@ jobs:
    outputs:
      val: ${{ steps.host.outputs.manifest }}
    steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
        with:
          persist-credentials: false
          submodules: recursive
      - name: Install cached dist
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
        with:
          name: cargo-dist-cache
          path: ~/.cargo/bin/
      - run: chmod +x ~/.cargo/bin/dist
      # Fetch artifacts from scratch-storage
      - name: Fetch artifacts
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
        with:
          pattern: artifacts-*
          path: target/distrib/
@@ -251,13 +251,13 @@ jobs:
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
-      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+      - uses: actions/checkout@09d2acae674a48949e3602304ab46fd20ae0c42f
        with:
          persist-credentials: false
          submodules: recursive
      # Create a GitHub Release while uploading all files to it
      - name: "Download GitHub Artifacts"
-        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093
        with:
          pattern: artifacts-*
          path: artifacts
--- a/.github/workflows/sync_typeshed.yaml
+++ b/.github/workflows/sync_typeshed.yaml
@@ -65,7 +65,7 @@ jobs:
        run: |
          git config --global user.name typeshedbot
          git config --global user.email '<>'
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
      - name: Sync typeshed stubs
        run: |
          rm -rf "ruff/${VENDORED_TYPESHED}"
@@ -117,7 +117,7 @@ jobs:
        with:
          persist-credentials: true
          ref: ${{ env.UPSTREAM_BRANCH}}
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
      - name: Setup git
        run: |
          git config --global user.name typeshedbot
@@ -155,7 +155,7 @@ jobs:
        with:
          persist-credentials: true
          ref: ${{ env.UPSTREAM_BRANCH}}
-      - uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+      - uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
      - name: Setup git
        run: |
          git config --global user.name typeshedbot
--- a/.github/workflows/ty-ecosystem-analyzer.yaml
+++ b/.github/workflows/ty-ecosystem-analyzer.yaml
@@ -33,7 +33,7 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3

      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
        with:
@@ -64,12 +64,11 @@ jobs:

          cd ..

-          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@1f560d07d672effae250e3d271da53d96c5260ff"
+          uv tool install "git+https://github.com/astral-sh/ecosystem-analyzer@27dd66d9e397d986ef9c631119ee09556eab8af9"

          ecosystem-analyzer \
            --repository ruff \
            diff \
-            --profile=release \
            --projects-old ruff/projects_old.txt \
            --projects-new ruff/projects_new.txt \
            --old old_commit \
--- a/.github/workflows/ty-ecosystem-report.yaml
+++ b/.github/workflows/ty-ecosystem-report.yaml
@@ -29,7 +29,7 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3

      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
        with:
--- a/.github/workflows/typing_conformance.yaml
+++ b/.github/workflows/typing_conformance.yaml
@@ -54,9 +54,6 @@ jobs:

      - name: Compute diagnostic diff
        shell: bash
-        env:
-          # TODO: Remove this once we fixed the remaining panics in the conformance suite.
-          TY_MAX_PARALLELISM: 1
        run: |
          RUFF_DIR="$GITHUB_WORKSPACE/ruff"

@@ -66,15 +63,15 @@ jobs:

            echo "new commit"
            git rev-list --format=%s --max-count=1 "$GITHUB_SHA"
-            cargo build --bin ty
-            mv target/debug/ty ty-new
+            cargo build --release --bin ty
+            mv target/release/ty ty-new

            MERGE_BASE="$(git merge-base "$GITHUB_SHA" "origin/$GITHUB_BASE_REF")"
            git checkout -b old_commit "$MERGE_BASE"
            echo "old commit (merge base)"
            git rev-list --format=%s --max-count=1 old_commit
-            cargo build --bin ty
-            mv target/debug/ty ty-old
+            cargo build --release --bin ty
+            mv target/release/ty ty-old
          )

          (
--- a/BREAKING_CHANGES.md
+++ b/BREAKING_CHANGES.md
@@ -1,44 +1,5 @@
 # Breaking Changes

-## 0.13.0
-
- **Several rules can now add `from __future__ import annotations` automatically**
-
-    `TC001`, `TC002`, `TC003`, `RUF013`, and `UP037` now add `from __future__ import annotations` as part of their fixes when the
-    `lint.future-annotations` setting is enabled. This allows the rules to move
-    more imports into `TYPE_CHECKING` blocks (`TC001`, `TC002`, and `TC003`),
-    use PEP 604 union syntax on Python versions before 3.10 (`RUF013`), and
-    unquote more annotations (`UP037`).
-
- **Full module paths are now used to verify first-party modules**
-
-    Ruff now checks that the full path to a module exists on disk before
-    categorizing it as a first-party import. This change makes first-party
-    import detection more accurate, helping to avoid false positives on local
-    directories with the same name as a third-party dependency, for example. See
-    the [FAQ
-    section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) on import categorization for more details.
-
- **Deprecated rules must now be selected by exact rule code**
-
-    Ruff will no longer activate deprecated rules selected by their group name
-    or prefix. As noted below, the two remaining deprecated rules were also
-    removed in this release, so this won't affect any current rules, but it will
-    still affect any deprecations in the future.
-
- **The deprecated macOS configuration directory fallback has been removed**
-
-    Ruff will no longer look for a user-level configuration file at
-    `~/Library/Application Support/ruff/ruff.toml` on macOS. This feature was
-    deprecated in v0.5 in favor of using the [XDG
-    specification](https://specifications.freedesktop.org/basedir-spec/latest/)
-    (usually resolving to `~/.config/ruff/ruff.toml`), like on Linux. The
-    fallback and accompanying deprecation warning have now been removed.
-
- **[`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name) (`PD901`) has been removed**
-
- **[`non-pep604-isinstance`](https://docs.astral.sh/ruff/rules/non-pep604-isinstance) (`UP038`) has been removed**
-
 ## 0.12.0

 - **Detection of more syntax errors**
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,119 +1,417 @@
 # Changelog

-## 0.13.0
+## 0.12.8

-Check out the [blog post](https://astral.sh/blog/ruff-v0.13.0) for a migration
+### Preview features
+
+- \[`flake8-use-pathlib`\] Expand `PTH201` to check all `PurePath` subclasses ([#19440](https://github.com/astral-sh/ruff/pull/19440))
+
+### Bug fixes
+
+- \[`flake8-blind-except`\] Change `BLE001` to correctly parse exception tuples ([#19747](https://github.com/astral-sh/ruff/pull/19747))
+- \[`flake8-errmsg`\] Exclude `typing.cast` from `EM101` ([#19656](https://github.com/astral-sh/ruff/pull/19656))
+- \[`flake8-simplify`\] Fix raw string handling in `SIM905` for embedded quotes ([#19591](https://github.com/astral-sh/ruff/pull/19591))
+- \[`flake8-import-conventions`\] Avoid false positives for NFKC-normalized `__debug__` import aliases in `ICN001` ([#19411](https://github.com/astral-sh/ruff/pull/19411))
+- \[`isort`\] Fix syntax error after docstring ending with backslash (`I002`) ([#19505](https://github.com/astral-sh/ruff/pull/19505))
+- \[`pylint`\] Mark `PLC0207` fixes as unsafe when `*args` unpacking is present ([#19679](https://github.com/astral-sh/ruff/pull/19679))
+- \[`pyupgrade`\] Prevent infinite loop with `I002` (`UP010`, `UP035`) ([#19413](https://github.com/astral-sh/ruff/pull/19413))
+- \[`ruff`\] Parenthesize generator expressions in f-strings (`RUF010`) ([#19434](https://github.com/astral-sh/ruff/pull/19434))
+
+### Rule changes
+
+- \[`eradicate`\] Don't flag `pyrefly` pragmas as unused code (`ERA001`) ([#19731](https://github.com/astral-sh/ruff/pull/19731))
+
+### Documentation
+
+- Replace "associative" with "commutative" in docs for `RUF036` ([#19706](https://github.com/astral-sh/ruff/pull/19706))
+- Fix copy and line separator colors in dark mode ([#19630](https://github.com/astral-sh/ruff/pull/19630))
+- Fix link to `typing` documentation ([#19648](https://github.com/astral-sh/ruff/pull/19648))
+- \[`refurb`\] Make more examples error out-of-the-box ([#19695](https://github.com/astral-sh/ruff/pull/19695),[#19673](https://github.com/astral-sh/ruff/pull/19673),[#19672](https://github.com/astral-sh/ruff/pull/19672))
+
+### Other changes
+
+- Include column numbers in GitLab output format ([#19708](https://github.com/astral-sh/ruff/pull/19708))
+- Always expand tabs to four spaces in diagnostics ([#19618](https://github.com/astral-sh/ruff/pull/19618))
+- Update pre-commit's `ruff` id ([#19654](https://github.com/astral-sh/ruff/pull/19654))
+
+## 0.12.7
+
+This is a follow-up release to 0.12.6. Because of an issue in the package metadata, 0.12.6 failed to publish fully to PyPI and has been yanked. Similarly, there is no GitHub release or Git tag for 0.12.6. The contents of the 0.12.7 release are identical to 0.12.6, except for the updated metadata.
+
+## 0.12.6
+
+### Preview features
+
+- \[`flake8-commas`\] Add support for trailing comma checks in type parameter lists (`COM812`, `COM819`) ([#19390](https://github.com/astral-sh/ruff/pull/19390))
+- \[`pylint`\] Implement auto-fix for `missing-maxsplit-arg` (`PLC0207`) ([#19387](https://github.com/astral-sh/ruff/pull/19387))
+- \[`ruff`\] Offer fixes for `RUF039` in more cases ([#19065](https://github.com/astral-sh/ruff/pull/19065))
+
+### Bug fixes
+
+- Support `.pyi` files in ruff analyze graph ([#19611](https://github.com/astral-sh/ruff/pull/19611))
+- \[`flake8-pyi`\] Preserve inline comment in ellipsis removal (`PYI013`) ([#19399](https://github.com/astral-sh/ruff/pull/19399))
+- \[`perflint`\] Ignore rule if target is `global` or `nonlocal` (`PERF401`) ([#19539](https://github.com/astral-sh/ruff/pull/19539))
+- \[`pyupgrade`\] Fix `UP030` to avoid modifying double curly braces in format strings ([#19378](https://github.com/astral-sh/ruff/pull/19378))
+- \[`refurb`\] Ignore decorated functions for `FURB118` ([#19339](https://github.com/astral-sh/ruff/pull/19339))
+- \[`refurb`\] Mark `int` and `bool` cases for `Decimal.from_float` as safe fixes (`FURB164`) ([#19468](https://github.com/astral-sh/ruff/pull/19468))
+- \[`ruff`\] Fix `RUF033` for named default expressions ([#19115](https://github.com/astral-sh/ruff/pull/19115))
+
+### Rule changes
+
+- \[`flake8-blind-except`\] Change `BLE001` to permit `logging.critical(..., exc_info=True)` ([#19520](https://github.com/astral-sh/ruff/pull/19520))
+
+### Performance
+
+- Add support for specifying minimum dots in detected string imports ([#19538](https://github.com/astral-sh/ruff/pull/19538))
+
+## 0.12.5
+
+### Preview features
+
+- \[`flake8-use-pathlib`\] Add autofix for `PTH101`, `PTH104`, `PTH105`, `PTH121` ([#19404](https://github.com/astral-sh/ruff/pull/19404))
+- \[`ruff`\] Support byte strings (`RUF055`) ([#18926](https://github.com/astral-sh/ruff/pull/18926))
+
+### Bug fixes
+
+- Fix `unreachable` panic in parser ([#19183](https://github.com/astral-sh/ruff/pull/19183))
+- \[`flake8-pyi`\] Skip fix if all `Union` members are `None` (`PYI016`) ([#19416](https://github.com/astral-sh/ruff/pull/19416))
+- \[`perflint`\] Parenthesize generator expressions (`PERF401`) ([#19325](https://github.com/astral-sh/ruff/pull/19325))
+- \[`pylint`\] Handle empty comments after line continuation (`PLR2044`) ([#19405](https://github.com/astral-sh/ruff/pull/19405))
+
+### Rule changes
+
+- \[`pep8-naming`\] Fix `N802` false positives for `CGIHTTPRequestHandler` and `SimpleHTTPRequestHandler` ([#19432](https://github.com/astral-sh/ruff/pull/19432))
+
+## 0.12.4
+
+### Preview features
+
+- \[`flake8-type-checking`, `pyupgrade`, `ruff`\] Add `from __future__ import annotations` when it would allow new fixes (`TC001`, `TC002`, `TC003`, `UP037`, `RUF013`) ([#19100](https://github.com/astral-sh/ruff/pull/19100))
+- \[`flake8-use-pathlib`\] Add autofix for `PTH109` ([#19245](https://github.com/astral-sh/ruff/pull/19245))
+- \[`pylint`\] Detect indirect `pathlib.Path` usages for `unspecified-encoding` (`PLW1514`) ([#19304](https://github.com/astral-sh/ruff/pull/19304))
+
+### Bug fixes
+
+- \[`flake8-bugbear`\] Fix `B017` false negatives for keyword exception arguments ([#19217](https://github.com/astral-sh/ruff/pull/19217))
+- \[`flake8-use-pathlib`\] Fix false negative on direct `Path()` instantiation (`PTH210`) ([#19388](https://github.com/astral-sh/ruff/pull/19388))
+- \[`flake8-django`\] Fix `DJ008` false positive for abstract models with type-annotated `abstract` field ([#19221](https://github.com/astral-sh/ruff/pull/19221))
+- \[`isort`\] Fix `I002` import insertion after docstring with multiple string statements ([#19222](https://github.com/astral-sh/ruff/pull/19222))
+- \[`isort`\] Treat form feed as valid whitespace before a semicolon ([#19343](https://github.com/astral-sh/ruff/pull/19343))
+- \[`pydoclint`\] Fix `SyntaxError` from fixes with line continuations (`D201`, `D202`) ([#19246](https://github.com/astral-sh/ruff/pull/19246))
+- \[`refurb`\] `FURB164` fix should validate arguments and should usually be marked unsafe ([#19136](https://github.com/astral-sh/ruff/pull/19136))
+
+### Rule changes
+
+- \[`flake8-use-pathlib`\] Skip single dots for `invalid-pathlib-with-suffix` (`PTH210`) on versions >= 3.14 ([#19331](https://github.com/astral-sh/ruff/pull/19331))
+- \[`pep8_naming`\] Avoid false positives on standard library functions with uppercase names (`N802`) ([#18907](https://github.com/astral-sh/ruff/pull/18907))
+- \[`pycodestyle`\] Handle brace escapes for t-strings in logical lines ([#19358](https://github.com/astral-sh/ruff/pull/19358))
+- \[`pylint`\] Extend invalid string character rules to include t-strings ([#19355](https://github.com/astral-sh/ruff/pull/19355))
+- \[`ruff`\] Allow `strict` kwarg when checking for `starmap-zip` (`RUF058`) in Python 3.14+ ([#19333](https://github.com/astral-sh/ruff/pull/19333))
+
+### Documentation
+
+- \[`flake8-type-checking`\] Make `TC010` docs example more realistic ([#19356](https://github.com/astral-sh/ruff/pull/19356))
+- Make more documentation examples error out-of-the-box ([#19288](https://github.com/astral-sh/ruff/pull/19288),[#19272](https://github.com/astral-sh/ruff/pull/19272),[#19291](https://github.com/astral-sh/ruff/pull/19291),[#19296](https://github.com/astral-sh/ruff/pull/19296),[#19292](https://github.com/astral-sh/ruff/pull/19292),[#19295](https://github.com/astral-sh/ruff/pull/19295),[#19297](https://github.com/astral-sh/ruff/pull/19297),[#19309](https://github.com/astral-sh/ruff/pull/19309))
+
+## 0.12.3
+
+### Preview features
+
+- \[`flake8-bugbear`\] Support non-context-manager calls in `B017` ([#19063](https://github.com/astral-sh/ruff/pull/19063))
+- \[`flake8-use-pathlib`\] Add autofixes for `PTH100`, `PTH106`, `PTH107`, `PTH108`, `PTH110`, `PTH111`, `PTH112`, `PTH113`, `PTH114`, `PTH115`, `PTH117`, `PTH119`, `PTH120` ([#19213](https://github.com/astral-sh/ruff/pull/19213))
+- \[`flake8-use-pathlib`\] Add autofixes for `PTH203`, `PTH204`, `PTH205` ([#18922](https://github.com/astral-sh/ruff/pull/18922))
+
+### Bug fixes
+
+- \[`flake8-return`\] Fix false-positive for variables used inside nested functions in `RET504` ([#18433](https://github.com/astral-sh/ruff/pull/18433))
+- Treat form feed as valid whitespace before a line continuation ([#19220](https://github.com/astral-sh/ruff/pull/19220))
+- \[`flake8-type-checking`\] Fix syntax error introduced by fix (`TC008`) ([#19150](https://github.com/astral-sh/ruff/pull/19150))
+- \[`pyupgrade`\] Keyword arguments in `super` should suppress the `UP008` fix ([#19131](https://github.com/astral-sh/ruff/pull/19131))
+
+### Documentation
+
+- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI007`, `PYI008`) ([#19103](https://github.com/astral-sh/ruff/pull/19103))
+- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM116`) ([#19111](https://github.com/astral-sh/ruff/pull/19111))
+- \[`flake8-type-checking`\] Make example error out-of-the-box (`TC001`) ([#19151](https://github.com/astral-sh/ruff/pull/19151))
+- \[`flake8-use-pathlib`\] Make example error out-of-the-box (`PTH210`) ([#19189](https://github.com/astral-sh/ruff/pull/19189))
+- \[`pycodestyle`\] Make example error out-of-the-box (`E272`) ([#19191](https://github.com/astral-sh/ruff/pull/19191))
+- \[`pycodestyle`\] Make example not raise unnecessary `SyntaxError` (`E114`) ([#19190](https://github.com/astral-sh/ruff/pull/19190))
+- \[`pydoclint`\] Make example error out-of-the-box (`DOC501`) ([#19218](https://github.com/astral-sh/ruff/pull/19218))
+- \[`pylint`, `pyupgrade`\] Fix syntax errors in examples (`PLW1501`, `UP028`) ([#19127](https://github.com/astral-sh/ruff/pull/19127))
+- \[`pylint`\] Update `missing-maxsplit-arg` docs and error to suggest proper usage (`PLC0207`) ([#18949](https://github.com/astral-sh/ruff/pull/18949))
+- \[`flake8-bandit`\] Make example error out-of-the-box (`S412`) ([#19241](https://github.com/astral-sh/ruff/pull/19241))
+
+## 0.12.2
+
+### Preview features
+
+- \[`flake8-pyi`\] Expand `Optional[A]` to `A | None` (`PYI016`) ([#18572](https://github.com/astral-sh/ruff/pull/18572))
+- \[`pyupgrade`\] Mark `UP008` fix safe if no comments are in range ([#18683](https://github.com/astral-sh/ruff/pull/18683))
+
+### Bug fixes
+
+- \[`flake8-comprehensions`\] Fix `C420` to prepend whitespace when needed ([#18616](https://github.com/astral-sh/ruff/pull/18616))
+- \[`perflint`\] Fix `PERF403` panic on attribute or subscription loop variable ([#19042](https://github.com/astral-sh/ruff/pull/19042))
+- \[`pydocstyle`\] Fix `D413` infinite loop for parenthesized docstring ([#18930](https://github.com/astral-sh/ruff/pull/18930))
+- \[`pylint`\] Fix `PLW0108` autofix introducing a syntax error when the lambda's body contains an assignment expression ([#18678](https://github.com/astral-sh/ruff/pull/18678))
+- \[`refurb`\] Fix false positive on empty tuples (`FURB168`) ([#19058](https://github.com/astral-sh/ruff/pull/19058))
+- \[`ruff`\] Allow more `field` calls from `attrs` (`RUF009`) ([#19021](https://github.com/astral-sh/ruff/pull/19021))
+- \[`ruff`\] Fix syntax error introduced for an empty string followed by a u-prefixed string (`UP025`) ([#18899](https://github.com/astral-sh/ruff/pull/18899))
+
+### Rule changes
+
+- \[`flake8-executable`\] Allow `uvx` in shebang line (`EXE003`) ([#18967](https://github.com/astral-sh/ruff/pull/18967))
+- \[`pandas`\] Avoid flagging `PD002` if `pandas` is not imported ([#18963](https://github.com/astral-sh/ruff/pull/18963))
+- \[`pyupgrade`\] Avoid PEP-604 unions with `typing.NamedTuple` (`UP007`, `UP045`) ([#18682](https://github.com/astral-sh/ruff/pull/18682))
+
+### Documentation
+
+- Document link between `import-outside-top-level (PLC0415)` and `lint.flake8-tidy-imports.banned-module-level-imports` ([#18733](https://github.com/astral-sh/ruff/pull/18733))
+- Fix description of the `format.skip-magic-trailing-comma` example ([#19095](https://github.com/astral-sh/ruff/pull/19095))
+- \[`airflow`\] Make `AIR302` example error out-of-the-box ([#18988](https://github.com/astral-sh/ruff/pull/18988))
+- \[`airflow`\] Make `AIR312` example error out-of-the-box ([#18989](https://github.com/astral-sh/ruff/pull/18989))
+- \[`flake8-annotations`\] Make `ANN401` example error out-of-the-box ([#18974](https://github.com/astral-sh/ruff/pull/18974))
+- \[`flake8-async`\] Make `ASYNC100` example error out-of-the-box ([#18993](https://github.com/astral-sh/ruff/pull/18993))
+- \[`flake8-async`\] Make `ASYNC105` example error out-of-the-box ([#19002](https://github.com/astral-sh/ruff/pull/19002))
+- \[`flake8-async`\] Make `ASYNC110` example error out-of-the-box ([#18975](https://github.com/astral-sh/ruff/pull/18975))
+- \[`flake8-async`\] Make `ASYNC210` example error out-of-the-box ([#18977](https://github.com/astral-sh/ruff/pull/18977))
+- \[`flake8-async`\] Make `ASYNC220`, `ASYNC221`, and `ASYNC222` examples error out-of-the-box ([#18978](https://github.com/astral-sh/ruff/pull/18978))
+- \[`flake8-async`\] Make `ASYNC251` example error out-of-the-box ([#18990](https://github.com/astral-sh/ruff/pull/18990))
+- \[`flake8-bandit`\] Make `S201` example error out-of-the-box ([#19017](https://github.com/astral-sh/ruff/pull/19017))
+- \[`flake8-bandit`\] Make `S604` and `S609` examples error out-of-the-box ([#19049](https://github.com/astral-sh/ruff/pull/19049))
+- \[`flake8-bugbear`\] Make `B028` example error out-of-the-box ([#19054](https://github.com/astral-sh/ruff/pull/19054))
+- \[`flake8-bugbear`\] Make `B911` example error out-of-the-box ([#19051](https://github.com/astral-sh/ruff/pull/19051))
+- \[`flake8-datetimez`\] Make `DTZ011` example error out-of-the-box ([#19055](https://github.com/astral-sh/ruff/pull/19055))
+- \[`flake8-datetimez`\] Make `DTZ901` example error out-of-the-box ([#19056](https://github.com/astral-sh/ruff/pull/19056))
+- \[`flake8-pyi`\] Make `PYI032` example error out-of-the-box ([#19061](https://github.com/astral-sh/ruff/pull/19061))
+- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI014`, `PYI015`) ([#19097](https://github.com/astral-sh/ruff/pull/19097))
+- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI042`) ([#19101](https://github.com/astral-sh/ruff/pull/19101))
+- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI059`) ([#19080](https://github.com/astral-sh/ruff/pull/19080))
+- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI062`) ([#19079](https://github.com/astral-sh/ruff/pull/19079))
+- \[`flake8-pytest-style`\] Make example error out-of-the-box (`PT023`) ([#19104](https://github.com/astral-sh/ruff/pull/19104))
+- \[`flake8-pytest-style`\] Make example error out-of-the-box (`PT030`) ([#19105](https://github.com/astral-sh/ruff/pull/19105))
+- \[`flake8-quotes`\] Make example error out-of-the-box (`Q003`) ([#19106](https://github.com/astral-sh/ruff/pull/19106))
+- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM110`) ([#19113](https://github.com/astral-sh/ruff/pull/19113))
+- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM113`) ([#19109](https://github.com/astral-sh/ruff/pull/19109))
+- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM401`) ([#19110](https://github.com/astral-sh/ruff/pull/19110))
+- \[`pyflakes`\] Fix backslash in docs (`F621`) ([#19098](https://github.com/astral-sh/ruff/pull/19098))
+- \[`pylint`\] Fix `PLC0415` example ([#18970](https://github.com/astral-sh/ruff/pull/18970))
+
+## 0.12.1
+
+### Preview features
+
+- \[`flake8-errmsg`\] Extend `EM101` to support byte strings ([#18867](https://github.com/astral-sh/ruff/pull/18867))
+- \[`flake8-use-pathlib`\] Add autofix for `PTH202` ([#18763](https://github.com/astral-sh/ruff/pull/18763))
+- \[`pygrep-hooks`\] Add `AsyncMock` methods to `invalid-mock-access` (`PGH005`) ([#18547](https://github.com/astral-sh/ruff/pull/18547))
+- \[`pylint`\] Ignore `__init__.py` files in (`PLC0414`) ([#18400](https://github.com/astral-sh/ruff/pull/18400))
+- \[`ruff`\] Trigger `RUF037` for empty string and byte strings ([#18862](https://github.com/astral-sh/ruff/pull/18862))
+- [formatter] Fix missing blank lines before decorated classes in `.pyi` files ([#18888](https://github.com/astral-sh/ruff/pull/18888))
+
+### Bug fixes
+
+- Avoid generating diagnostics with per-file ignores ([#18801](https://github.com/astral-sh/ruff/pull/18801))
+- Handle parenthesized arguments in `remove_argument` ([#18805](https://github.com/astral-sh/ruff/pull/18805))
+- \[`flake8-logging`\] Avoid false positive for `exc_info=True` outside `logger.exception` (`LOG014`) ([#18737](https://github.com/astral-sh/ruff/pull/18737))
+- \[`flake8-pytest-style`\] Enforce `pytest` import for decorators ([#18779](https://github.com/astral-sh/ruff/pull/18779))
+- \[`flake8-pytest-style`\] Mark autofix for `PT001` and `PT023` as unsafe if there's comments in the decorator ([#18792](https://github.com/astral-sh/ruff/pull/18792))
+- \[`flake8-pytest-style`\] `PT001`/`PT023` fix makes syntax error on parenthesized decorator ([#18782](https://github.com/astral-sh/ruff/pull/18782))
+- \[`flake8-raise`\] Make fix unsafe if it deletes comments (`RSE102`) ([#18788](https://github.com/astral-sh/ruff/pull/18788))
+- \[`flake8-simplify`\] Fix `SIM911` autofix creating a syntax error ([#18793](https://github.com/astral-sh/ruff/pull/18793))
+- \[`flake8-simplify`\] Fix false negatives for shadowed bindings (`SIM910`, `SIM911`) ([#18794](https://github.com/astral-sh/ruff/pull/18794))
+- \[`flake8-simplify`\] Preserve original behavior for `except ()` and bare `except` (`SIM105`) ([#18213](https://github.com/astral-sh/ruff/pull/18213))
+- \[`flake8-pyi`\] Fix `PYI041`'s fix causing `TypeError` with `None | None | ...` ([#18637](https://github.com/astral-sh/ruff/pull/18637))
+- \[`perflint`\] Fix `PERF101` autofix creating a syntax error and mark autofix as unsafe if there are comments in the `list` call expr ([#18803](https://github.com/astral-sh/ruff/pull/18803))
+- \[`perflint`\] Fix false negative in `PERF401` ([#18866](https://github.com/astral-sh/ruff/pull/18866))
+- \[`pylint`\] Avoid flattening nested `min`/`max` when outer call has single argument (`PLW3301`) ([#16885](https://github.com/astral-sh/ruff/pull/16885))
+- \[`pylint`\] Fix `PLC2801` autofix creating a syntax error ([#18857](https://github.com/astral-sh/ruff/pull/18857))
+- \[`pylint`\] Mark `PLE0241` autofix as unsafe if there's comments in the base classes ([#18832](https://github.com/astral-sh/ruff/pull/18832))
+- \[`pylint`\] Suppress `PLE2510`/`PLE2512`/`PLE2513`/`PLE2514`/`PLE2515` autofix if the text contains an odd number of backslashes ([#18856](https://github.com/astral-sh/ruff/pull/18856))
+- \[`refurb`\] Detect more exotic float literals in `FURB164` ([#18925](https://github.com/astral-sh/ruff/pull/18925))
+- \[`refurb`\] Fix `FURB163` autofix creating a syntax error for `yield` expressions ([#18756](https://github.com/astral-sh/ruff/pull/18756))
+- \[`refurb`\] Mark `FURB129` autofix as unsafe if there's comments in the `readlines` call ([#18858](https://github.com/astral-sh/ruff/pull/18858))
+- \[`ruff`\] Fix false positives and negatives in `RUF010` ([#18690](https://github.com/astral-sh/ruff/pull/18690))
+- Fix casing of `analyze.direction` variant names ([#18892](https://github.com/astral-sh/ruff/pull/18892))
+
+### Rule changes
+
+- Fix f-string interpolation escaping in generated fixes ([#18882](https://github.com/astral-sh/ruff/pull/18882))
+- \[`flake8-return`\] Mark `RET501` fix unsafe if comments are inside ([#18780](https://github.com/astral-sh/ruff/pull/18780))
+- \[`flake8-async`\] Fix detection for large integer sleep durations in `ASYNC116` rule ([#18767](https://github.com/astral-sh/ruff/pull/18767))
+- \[`flake8-async`\] Mark autofix for `ASYNC115` as unsafe if the call expression contains comments ([#18753](https://github.com/astral-sh/ruff/pull/18753))
+- \[`flake8-bugbear`\] Mark autofix for `B004` as unsafe if the `hasattr` call expr contains comments ([#18755](https://github.com/astral-sh/ruff/pull/18755))
+- \[`flake8-comprehension`\] Mark autofix for `C420` as unsafe if there's comments inside the dict comprehension ([#18768](https://github.com/astral-sh/ruff/pull/18768))
+- \[`flake8-comprehensions`\] Handle template strings for comprehension fixes ([#18710](https://github.com/astral-sh/ruff/pull/18710))
+- \[`flake8-future-annotations`\] Add autofix (`FA100`) ([#18903](https://github.com/astral-sh/ruff/pull/18903))
+- \[`pyflakes`\] Mark `F504`/`F522`/`F523` autofix as unsafe if there's a call with side effect ([#18839](https://github.com/astral-sh/ruff/pull/18839))
+- \[`pylint`\] Allow fix with comments and document performance implications (`PLW3301`) ([#18936](https://github.com/astral-sh/ruff/pull/18936))
+- \[`pylint`\] Detect more exotic `NaN` literals in `PLW0177` ([#18630](https://github.com/astral-sh/ruff/pull/18630))
+- \[`pylint`\] Fix `PLC1802` autofix creating a syntax error and mark autofix as unsafe if there's comments in the `len` call ([#18836](https://github.com/astral-sh/ruff/pull/18836))
+- \[`pyupgrade`\] Extend version detection to include `sys.version_info.major` (`UP036`) ([#18633](https://github.com/astral-sh/ruff/pull/18633))
+- \[`ruff`\] Add lint rule `RUF064` for calling `chmod` with non-octal integers ([#18541](https://github.com/astral-sh/ruff/pull/18541))
+- \[`ruff`\] Added `cls.__dict__.get('__annotations__')` check (`RUF063`) ([#18233](https://github.com/astral-sh/ruff/pull/18233))
+- \[`ruff`\] Frozen `dataclass` default should be valid (`RUF009`) ([#18735](https://github.com/astral-sh/ruff/pull/18735))
+
+### Server
+
+- Consider virtual path for various server actions ([#18910](https://github.com/astral-sh/ruff/pull/18910))
+
+### Documentation
+
+- Add fix safety sections ([#18940](https://github.com/astral-sh/ruff/pull/18940),[#18841](https://github.com/astral-sh/ruff/pull/18841),[#18802](https://github.com/astral-sh/ruff/pull/18802),[#18837](https://github.com/astral-sh/ruff/pull/18837),[#18800](https://github.com/astral-sh/ruff/pull/18800),[#18415](https://github.com/astral-sh/ruff/pull/18415),[#18853](https://github.com/astral-sh/ruff/pull/18853),[#18842](https://github.com/astral-sh/ruff/pull/18842))
+- Use updated pre-commit id ([#18718](https://github.com/astral-sh/ruff/pull/18718))
+- \[`perflint`\] Small docs improvement to `PERF401` ([#18786](https://github.com/astral-sh/ruff/pull/18786))
+- \[`pyupgrade`\]: Use `super()`, not `__super__` in error messages (`UP008`) ([#18743](https://github.com/astral-sh/ruff/pull/18743))
+- \[`flake8-pie`\] Small docs fix to `PIE794` ([#18829](https://github.com/astral-sh/ruff/pull/18829))
+- \[`flake8-pyi`\] Correct `collections-named-tuple` example to use PascalCase assignment ([#16884](https://github.com/astral-sh/ruff/pull/16884))
+- \[`flake8-pie`\] Add note on type checking benefits to `unnecessary-dict-kwargs` (`PIE804`) ([#18666](https://github.com/astral-sh/ruff/pull/18666))
+- \[`pycodestyle`\] Clarify PEP 8 relationship to `whitespace-around-operator` rules ([#18870](https://github.com/astral-sh/ruff/pull/18870))
+
+### Other changes
+
+- Disallow newlines in format specifiers of single quoted f- or t-strings ([#18708](https://github.com/astral-sh/ruff/pull/18708))
+- \[`flake8-logging`\] Add fix safety section to `LOG002` ([#18840](https://github.com/astral-sh/ruff/pull/18840))
+- \[`pyupgrade`\] Add fix safety section to `UP010` ([#18838](https://github.com/astral-sh/ruff/pull/18838))
+
+## 0.12.0
+
+Check out the [blog post](https://astral.sh/blog/ruff-v0.12.0) for a migration
 guide and overview of the changes!

 ### Breaking changes

- **Several rules can now add `from __future__ import annotations` automatically**
+- **Detection of more syntax errors**

-    `TC001`, `TC002`, `TC003`, `RUF013`, and `UP037` now add `from __future__ import annotations` as part of their fixes when the
-    `lint.future-annotations` setting is enabled. This allows the rules to move
-    more imports into `TYPE_CHECKING` blocks (`TC001`, `TC002`, and `TC003`),
-    use PEP 604 union syntax on Python versions before 3.10 (`RUF013`), and
-    unquote more annotations (`UP037`).
+    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.

- **Full module paths are now used to verify first-party modules**
+- **New default Python version handling for syntax errors**

-    Ruff now checks that the full path to a module exists on disk before
-    categorizing it as a first-party import. This change makes first-party
-    import detection more accurate, helping to avoid false positives on local
-    directories with the same name as a third-party dependency, for example. See
-    the [FAQ
-    section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) on import categorization for more details.
+    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).

- **Deprecated rules must now be selected by exact rule code**
+- **Updated f-string formatting**

-    Ruff will no longer activate deprecated rules selected by their group name
-    or prefix. As noted below, the two remaining deprecated rules were also
-    removed in this release, so this won't affect any current rules, but it will
-    still affect any deprecations in the future.
+    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.

- **The deprecated macOS configuration directory fallback has been removed**
+- **`rust-toolchain.toml` is no longer included in source distributions**

-    Ruff will no longer look for a user-level configuration file at
-    `~/Library/Application Support/ruff/ruff.toml` on macOS. This feature was
-    deprecated in v0.5 in favor of using the [XDG
-    specification](https://specifications.freedesktop.org/basedir-spec/latest/)
-    (usually resolving to `~/.config/ruff/ruff.toml`), like on Linux. The
-    fallback and accompanying deprecation warning have now been removed.
+    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.

 ### Removed Rules

 The following rules have been removed:

- [`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name) (`PD901`)
- [`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`)
+
+### Deprecated Rules
+
+The following rules have been deprecated:
+
+- [`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name/)

 ### Stabilization

 The following rules have been stabilized and are no longer in preview:

- [`airflow-dag-no-schedule-argument`](https://docs.astral.sh/ruff/rules/airflow-dag-no-schedule-argument)
-    (`AIR002`)
- [`airflow3-removal`](https://docs.astral.sh/ruff/rules/airflow3-removal) (`AIR301`)
- [`airflow3-moved-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-moved-to-provider)
-    (`AIR302`)
- [`airflow3-suggested-update`](https://docs.astral.sh/ruff/rules/airflow3-suggested-update)
-    (`AIR311`)
- [`airflow3-suggested-to-move-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-suggested-to-move-to-provider)
-    (`AIR312`)
- [`long-sleep-not-forever`](https://docs.astral.sh/ruff/rules/long-sleep-not-forever) (`ASYNC116`)
- [`f-string-number-format`](https://docs.astral.sh/ruff/rules/f-string-number-format) (`FURB116`)
- [`os-symlink`](https://docs.astral.sh/ruff/rules/os-symlink) (`PTH211`)
- [`generic-not-last-base-class`](https://docs.astral.sh/ruff/rules/generic-not-last-base-class)
-    (`PYI059`)
- [`redundant-none-literal`](https://docs.astral.sh/ruff/rules/redundant-none-literal) (`PYI061`)
- [`pytest-raises-ambiguous-pattern`](https://docs.astral.sh/ruff/rules/pytest-raises-ambiguous-pattern)
-    (`RUF043`)
- [`unused-unpacked-variable`](https://docs.astral.sh/ruff/rules/unused-unpacked-variable)
-    (`RUF059`)
- [`useless-class-metaclass-type`](https://docs.astral.sh/ruff/rules/useless-class-metaclass-type)
-    (`UP050`)
+- [`for-loop-writes`](https://docs.astral.sh/ruff/rules/for-loop-writes) (`FURB122`)
+- [`check-and-remove-from-set`](https://docs.astral.sh/ruff/rules/check-and-remove-from-set) (`FURB132`)
+- [`verbose-decimal-constructor`](https://docs.astral.sh/ruff/rules/verbose-decimal-constructor) (`FURB157`)
+- [`fromisoformat-replace-z`](https://docs.astral.sh/ruff/rules/fromisoformat-replace-z) (`FURB162`)
+- [`int-on-sliced-str`](https://docs.astral.sh/ruff/rules/int-on-sliced-str) (`FURB166`)
+- [`exc-info-outside-except-handler`](https://docs.astral.sh/ruff/rules/exc-info-outside-except-handler) (`LOG014`)
+- [`import-outside-top-level`](https://docs.astral.sh/ruff/rules/import-outside-top-level) (`PLC0415`)
+- [`unnecessary-dict-index-lookup`](https://docs.astral.sh/ruff/rules/unnecessary-dict-index-lookup) (`PLR1733`)
+- [`nan-comparison`](https://docs.astral.sh/ruff/rules/nan-comparison) (`PLW0177`)
+- [`eq-without-hash`](https://docs.astral.sh/ruff/rules/eq-without-hash) (`PLW1641`)
+- [`pytest-parameter-with-default-argument`](https://docs.astral.sh/ruff/rules/pytest-parameter-with-default-argument) (`PT028`)
+- [`pytest-warns-too-broad`](https://docs.astral.sh/ruff/rules/pytest-warns-too-broad) (`PT030`)
+- [`pytest-warns-with-multiple-statements`](https://docs.astral.sh/ruff/rules/pytest-warns-with-multiple-statements) (`PT031`)
+- [`invalid-formatter-suppression-comment`](https://docs.astral.sh/ruff/rules/invalid-formatter-suppression-comment) (`RUF028`)
+- [`dataclass-enum`](https://docs.astral.sh/ruff/rules/dataclass-enum) (`RUF049`)
+- [`class-with-mixed-type-vars`](https://docs.astral.sh/ruff/rules/class-with-mixed-type-vars) (`RUF053`)
+- [`unnecessary-round`](https://docs.astral.sh/ruff/rules/unnecessary-round) (`RUF057`)
+- [`starmap-zip`](https://docs.astral.sh/ruff/rules/starmap-zip) (`RUF058`)
+- [`non-pep604-annotation-optional`] (`UP045`)
+- [`non-pep695-generic-class`](https://docs.astral.sh/ruff/rules/non-pep695-generic-class) (`UP046`)
+- [`non-pep695-generic-function`](https://docs.astral.sh/ruff/rules/non-pep695-generic-function) (`UP047`)
+- [`private-type-parameter`](https://docs.astral.sh/ruff/rules/private-type-parameter) (`UP049`)

 The following behaviors have been stabilized:

- [`assert-raises-exception`](https://docs.astral.sh/ruff/rules/assert-raises-exception) (`B017`)
-    now checks for direct calls to `unittest.TestCase.assert_raises` and `pytest.raises` instead of
-    only the context manager forms.
- [`missing-trailing-comma`](https://docs.astral.sh/ruff/rules/missing-trailing-comma) (`COM812`)
-    and [`prohibited-trailing-comma`](https://docs.astral.sh/ruff/rules/prohibited-trailing-comma)
-    (`COM819`) now check for trailing commas in PEP 695 type parameter lists.
- [`raw-string-in-exception`](https://docs.astral.sh/ruff/rules/raw-string-in-exception) (`EM101`)
-    now also checks for byte strings in exception messages.
- [`invalid-mock-access`](https://docs.astral.sh/ruff/rules/invalid-mock-access) (`PGH005`) now
-    checks for `AsyncMock` methods like `not_awaited` in addition to the synchronous variants.
- [`useless-import-alias`](https://docs.astral.sh/ruff/rules/useless-import-alias) (`PLC0414`) no
-    longer applies to `__init__.py` files, where it conflicted with one of the suggested fixes for
-    [`unused-import`](https://docs.astral.sh/ruff/rules/unused-import) (`F401`).
- [`bidirectional-unicode`](https://docs.astral.sh/ruff/rules/bidirectional-unicode) (`PLE2502`) now
-    also checks for U+061C (Arabic Letter Mark).
- The fix for
-    [`multiple-with-statements`](https://docs.astral.sh/ruff/rules/multiple-with-statements)
-    (`SIM117`) is now marked as always safe.
+- [`collection-literal-concatenation`] (`RUF005`) now recognizes slices, in
+    addition to list literals and variables.
+- The fix for [`readlines-in-for`] (`FURB129`) is now marked as always safe.
+- [`if-else-block-instead-of-if-exp`] (`SIM108`) will now further simplify
+    expressions to use `or` instead of an `if` expression, where possible.
+- [`unused-noqa`] (`RUF100`) now checks for file-level `noqa` comments as well
+    as inline comments.
+- [`subprocess-without-shell-equals-true`] (`S603`) now accepts literal strings,
+    as well as lists and tuples of literal strings, as trusted input.
+- [`boolean-type-hint-positional-argument`] (`FBT001`) now applies to types that
+    include `bool`, like `bool | int` or `typing.Optional[bool]`, in addition to
+    plain `bool` annotations.
+- [`non-pep604-annotation-union`] (`UP007`) has now been split into two rules.
+    `UP007` now applies only to `typing.Union`, while
+    [`non-pep604-annotation-optional`] (`UP045`) checks for use of
+    `typing.Optional`. `UP045` has also been stabilized in this release, but you
+    may need to update existing `include`, `ignore`, or `noqa` settings to
+    accommodate this change.

 ### Preview features

- \[`pyupgrade`\] Enable `UP043` in stub files ([#20027](https://github.com/astral-sh/ruff/pull/20027))
+- \[`ruff`\] Check for non-context-manager use of `pytest.raises`, `pytest.warns`, and `pytest.deprecated_call` (`RUF061`) ([#17368](https://github.com/astral-sh/ruff/pull/17368))
+- [syntax-errors] Raise unsupported syntax error for template strings prior to Python 3.14 ([#18664](https://github.com/astral-sh/ruff/pull/18664))

 ### Bug fixes

- \[`pyupgrade`\] Apply `UP008` only when the `__class__` cell exists ([#19424](https://github.com/astral-sh/ruff/pull/19424))
- \[`ruff`\] Fix empty f-string detection in `in-empty-collection` (`RUF060`) ([#20249](https://github.com/astral-sh/ruff/pull/20249))
+- Add syntax error when conversion flag does not immediately follow exclamation mark ([#18706](https://github.com/astral-sh/ruff/pull/18706))
+- Add trailing space around `readlines` ([#18542](https://github.com/astral-sh/ruff/pull/18542))
+- Fix `\r` and `\r\n` handling in t- and f-string debug texts ([#18673](https://github.com/astral-sh/ruff/pull/18673))
+- Hug closing `}` when f-string expression has a format specifier ([#18704](https://github.com/astral-sh/ruff/pull/18704))
+- \[`flake8-pyi`\] Avoid syntax error in the case of starred and keyword arguments (`PYI059`) ([#18611](https://github.com/astral-sh/ruff/pull/18611))
+- \[`flake8-return`\] Fix `RET504` autofix generating a syntax error ([#18428](https://github.com/astral-sh/ruff/pull/18428))
+- \[`pep8-naming`\] Suppress fix for `N804` and `N805` if the recommended name is already used ([#18472](https://github.com/astral-sh/ruff/pull/18472))
+- \[`pycodestyle`\] Avoid causing a syntax error in expressions spanning multiple lines (`E731`) ([#18479](https://github.com/astral-sh/ruff/pull/18479))
+- \[`pyupgrade`\] Suppress `UP008` if `super` is shadowed ([#18688](https://github.com/astral-sh/ruff/pull/18688))
+- \[`refurb`\] Parenthesize lambda and ternary expressions (`FURB122`, `FURB142`) ([#18592](https://github.com/astral-sh/ruff/pull/18592))
+- \[`ruff`\] Handle extra arguments to `deque` (`RUF037`) ([#18614](https://github.com/astral-sh/ruff/pull/18614))
+- \[`ruff`\] Preserve parentheses around `deque` in fix for `unnecessary-empty-iterable-within-deque-call` (`RUF037`) ([#18598](https://github.com/astral-sh/ruff/pull/18598))
+- \[`ruff`\] Validate arguments before offering a fix (`RUF056`) ([#18631](https://github.com/astral-sh/ruff/pull/18631))
+- \[`ruff`\] Skip fix for `RUF059` if dummy name is already bound ([#18509](https://github.com/astral-sh/ruff/pull/18509))
+- \[`pylint`\] Fix `PLW0128` to check assignment targets in square brackets and after asterisks ([#18665](https://github.com/astral-sh/ruff/pull/18665))
+
+### Rule changes
+
+- Fix false positive on mutations in `return` statements (`B909`) ([#18408](https://github.com/astral-sh/ruff/pull/18408))
+- Treat `ty:` comments as pragma comments ([#18532](https://github.com/astral-sh/ruff/pull/18532))
+- \[`flake8-pyi`\] Apply `custom-typevar-for-self` to string annotations (`PYI019`) ([#18311](https://github.com/astral-sh/ruff/pull/18311))
+- \[`pyupgrade`\] Don't offer a fix for `Optional[None]` (`UP007`, `UP045)` ([#18545](https://github.com/astral-sh/ruff/pull/18545))
+- \[`pyupgrade`\] Fix `super(__class__, self)` detection (`UP008`) ([#18478](https://github.com/astral-sh/ruff/pull/18478))
+- \[`refurb`\] Make the fix for `FURB163` unsafe for `log2`, `log10`, `*args`, and deleted comments ([#18645](https://github.com/astral-sh/ruff/pull/18645))

 ### Server

- Add support for using uv as an alternative formatter backend ([#19665](https://github.com/astral-sh/ruff/pull/19665))
+- Support cancellation requests ([#18627](https://github.com/astral-sh/ruff/pull/18627))

 ### Documentation

- \[`pep8-naming`\] Fix formatting of `__all__` (`N816`) ([#20301](https://github.com/astral-sh/ruff/pull/20301))
-
-## 0.12.x
-
-See [changelogs/0.12.x](./changelogs/0.12.x.md)
+- Drop confusing second `*` from glob pattern example for `per-file-target-version` ([#18709](https://github.com/astral-sh/ruff/pull/18709))
+- Update Neovim configuration examples ([#18491](https://github.com/astral-sh/ruff/pull/18491))
+- \[`pylint`\] De-emphasize `__hash__ = Parent.__hash__` (`PLW1641`) ([#18613](https://github.com/astral-sh/ruff/pull/18613))
+- \[`refurb`\] Add a note about float literal handling (`FURB157`) ([#18615](https://github.com/astral-sh/ruff/pull/18615))

 ## 0.11.x

@@ -158,3 +456,12 @@ See [changelogs/0.2.x](./changelogs/0.2.x.md)
 ## 0.1.x

 See [changelogs/0.1.x](./changelogs/0.1.x.md)
+
+[`boolean-type-hint-positional-argument`]: https://docs.astral.sh/ruff/rules/boolean-type-hint-positional-argument
+[`collection-literal-concatenation`]: https://docs.astral.sh/ruff/rules/collection-literal-concatenation
+[`if-else-block-instead-of-if-exp`]: https://docs.astral.sh/ruff/rules/if-else-block-instead-of-if-exp
+[`non-pep604-annotation-optional`]: https://docs.astral.sh/ruff/rules/non-pep604-annotation-optional
+[`non-pep604-annotation-union`]: https://docs.astral.sh/ruff/rules/non-pep604-annotation-union
+[`readlines-in-for`]: https://docs.astral.sh/ruff/rules/readlines-in-for
+[`subprocess-without-shell-equals-true`]: https://docs.astral.sh/ruff/rules/subprocess-without-shell-equals-true
+[`unused-noqa`]: https://docs.astral.sh/ruff/rules/unused-noqa
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ resolver = "2"
 [workspace.package]
 # Please update rustfmt.toml when bumping the Rust edition
 edition = "2024"
-rust-version = "1.87"
+rust-version = "1.86"
 homepage = "https://docs.astral.sh/ruff"
 documentation = "https://docs.astral.sh/ruff"
 repository = "https://github.com/astral-sh/ruff"
@@ -115,7 +115,7 @@ jiff = { version = "0.2.0" }
 js-sys = { version = "0.3.69" }
 jod-thread = { version = "1.0.0" }
 libc = { version = "0.2.153" }
-libcst = { version = "1.8.4", default-features = false }
+libcst = { version = "1.1.0", default-features = false }
 log = { version = "0.4.17" }
 lsp-server = { version = "0.7.6" }
 lsp-types = { git = "https://github.com/astral-sh/lsp-types.git", rev = "3512a9f", features = [
@@ -143,7 +143,7 @@ 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 = "a3ffa22cb26756473d56f867aedec3fd907c4dd9", default-features = false, features = [
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "b121ee46c4483ba74c19e933a3522bd548eb7343", default-features = false, features = [
    "compact_str",
    "macros",
    "salsa_unstable",
@@ -215,8 +215,6 @@ unexpected_cfgs = { level = "warn", check-cfg = [

 [workspace.lints.clippy]
 pedantic = { level = "warn", priority = -2 }
-# Enabled at the crate level
-disallowed_methods = "allow"
 # Allowed pedantic lints
 char_lit_as_u8 = "allow"
 collapsible_else_if = "allow"
@@ -251,19 +249,10 @@ rest_pat_in_fully_bound_structs = "warn"
 redundant_clone = "warn"
 debug_assert_with_mut_call = "warn"
 unused_peekable = "warn"
-# This lint sometimes flags code whose `if` and `else`
-# bodies could be flipped when a `!` operator is removed.
-# While perhaps sometimes a good idea, it is also often
-# not a good idea due to other factors impacting
-# readability. For example, if flipping the bodies results
-# in the `if` being an order of magnitude bigger than the
-# `else`, then some might consider that harder to read.
-if_not_else = "allow"

 # Diagnostics are not actionable: Enable once https://github.com/rust-lang/rust-clippy/issues/13774 is resolved.
 large_stack_arrays = "allow"

-
 [profile.release]
 # Note that we set these explicitly, and these values
 # were chosen based on a trade-off between compile times
--- a/1160
+++ b/1160
--- a/README.md
+++ b/README.md
@@ -148,8 +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/0.13.0/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.13.0/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.12.8/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.12.8/install.ps1 | iex"
 ```

 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -182,7 +182,7 @@ 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: v0.13.0
+  rev: v0.12.8
  hooks:
    # Run the linter.
    - id: ruff-check
--- a/changelogs/0.12.x.md
+++ b/changelogs/0.12.x.md
@@ -1,551 +0,0 @@
-# Changelog 0.12.x
-
-## 0.12.0
-
-Check out the [blog post](https://astral.sh/blog/ruff-v0.12.0) for a migration
-guide and overview of the changes!
-
-### Breaking changes
-
- **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.
-
-### Removed Rules
-
-The following rules have been removed:
-
- [`suspicious-xmle-tree-usage`](https://docs.astral.sh/ruff/rules/suspicious-xmle-tree-usage/)
-    (`S320`)
-
-### Deprecated Rules
-
-The following rules have been deprecated:
-
- [`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name/)
-
-### Stabilization
-
-The following rules have been stabilized and are no longer in preview:
-
- [`for-loop-writes`](https://docs.astral.sh/ruff/rules/for-loop-writes) (`FURB122`)
- [`check-and-remove-from-set`](https://docs.astral.sh/ruff/rules/check-and-remove-from-set) (`FURB132`)
- [`verbose-decimal-constructor`](https://docs.astral.sh/ruff/rules/verbose-decimal-constructor) (`FURB157`)
- [`fromisoformat-replace-z`](https://docs.astral.sh/ruff/rules/fromisoformat-replace-z) (`FURB162`)
- [`int-on-sliced-str`](https://docs.astral.sh/ruff/rules/int-on-sliced-str) (`FURB166`)
- [`exc-info-outside-except-handler`](https://docs.astral.sh/ruff/rules/exc-info-outside-except-handler) (`LOG014`)
- [`import-outside-top-level`](https://docs.astral.sh/ruff/rules/import-outside-top-level) (`PLC0415`)
- [`unnecessary-dict-index-lookup`](https://docs.astral.sh/ruff/rules/unnecessary-dict-index-lookup) (`PLR1733`)
- [`nan-comparison`](https://docs.astral.sh/ruff/rules/nan-comparison) (`PLW0177`)
- [`eq-without-hash`](https://docs.astral.sh/ruff/rules/eq-without-hash) (`PLW1641`)
- [`pytest-parameter-with-default-argument`](https://docs.astral.sh/ruff/rules/pytest-parameter-with-default-argument) (`PT028`)
- [`pytest-warns-too-broad`](https://docs.astral.sh/ruff/rules/pytest-warns-too-broad) (`PT030`)
- [`pytest-warns-with-multiple-statements`](https://docs.astral.sh/ruff/rules/pytest-warns-with-multiple-statements) (`PT031`)
- [`invalid-formatter-suppression-comment`](https://docs.astral.sh/ruff/rules/invalid-formatter-suppression-comment) (`RUF028`)
- [`dataclass-enum`](https://docs.astral.sh/ruff/rules/dataclass-enum) (`RUF049`)
- [`class-with-mixed-type-vars`](https://docs.astral.sh/ruff/rules/class-with-mixed-type-vars) (`RUF053`)
- [`unnecessary-round`](https://docs.astral.sh/ruff/rules/unnecessary-round) (`RUF057`)
- [`starmap-zip`](https://docs.astral.sh/ruff/rules/starmap-zip) (`RUF058`)
- [`non-pep604-annotation-optional`] (`UP045`)
- [`non-pep695-generic-class`](https://docs.astral.sh/ruff/rules/non-pep695-generic-class) (`UP046`)
- [`non-pep695-generic-function`](https://docs.astral.sh/ruff/rules/non-pep695-generic-function) (`UP047`)
- [`private-type-parameter`](https://docs.astral.sh/ruff/rules/private-type-parameter) (`UP049`)
-
-The following behaviors have been stabilized:
-
- [`collection-literal-concatenation`] (`RUF005`) now recognizes slices, in
-    addition to list literals and variables.
- The fix for [`readlines-in-for`] (`FURB129`) is now marked as always safe.
- [`if-else-block-instead-of-if-exp`] (`SIM108`) will now further simplify
-    expressions to use `or` instead of an `if` expression, where possible.
- [`unused-noqa`] (`RUF100`) now checks for file-level `noqa` comments as well
-    as inline comments.
- [`subprocess-without-shell-equals-true`] (`S603`) now accepts literal strings,
-    as well as lists and tuples of literal strings, as trusted input.
- [`boolean-type-hint-positional-argument`] (`FBT001`) now applies to types that
-    include `bool`, like `bool | int` or `typing.Optional[bool]`, in addition to
-    plain `bool` annotations.
- [`non-pep604-annotation-union`] (`UP007`) has now been split into two rules.
-    `UP007` now applies only to `typing.Union`, while
-    [`non-pep604-annotation-optional`] (`UP045`) checks for use of
-    `typing.Optional`. `UP045` has also been stabilized in this release, but you
-    may need to update existing `include`, `ignore`, or `noqa` settings to
-    accommodate this change.
-
-### Preview features
-
- \[`ruff`\] Check for non-context-manager use of `pytest.raises`, `pytest.warns`, and `pytest.deprecated_call` (`RUF061`) ([#17368](https://github.com/astral-sh/ruff/pull/17368))
- [syntax-errors] Raise unsupported syntax error for template strings prior to Python 3.14 ([#18664](https://github.com/astral-sh/ruff/pull/18664))
-
-### Bug fixes
-
- Add syntax error when conversion flag does not immediately follow exclamation mark ([#18706](https://github.com/astral-sh/ruff/pull/18706))
- Add trailing space around `readlines` ([#18542](https://github.com/astral-sh/ruff/pull/18542))
- Fix `\r` and `\r\n` handling in t- and f-string debug texts ([#18673](https://github.com/astral-sh/ruff/pull/18673))
- Hug closing `}` when f-string expression has a format specifier ([#18704](https://github.com/astral-sh/ruff/pull/18704))
- \[`flake8-pyi`\] Avoid syntax error in the case of starred and keyword arguments (`PYI059`) ([#18611](https://github.com/astral-sh/ruff/pull/18611))
- \[`flake8-return`\] Fix `RET504` autofix generating a syntax error ([#18428](https://github.com/astral-sh/ruff/pull/18428))
- \[`pep8-naming`\] Suppress fix for `N804` and `N805` if the recommended name is already used ([#18472](https://github.com/astral-sh/ruff/pull/18472))
- \[`pycodestyle`\] Avoid causing a syntax error in expressions spanning multiple lines (`E731`) ([#18479](https://github.com/astral-sh/ruff/pull/18479))
- \[`pyupgrade`\] Suppress `UP008` if `super` is shadowed ([#18688](https://github.com/astral-sh/ruff/pull/18688))
- \[`refurb`\] Parenthesize lambda and ternary expressions (`FURB122`, `FURB142`) ([#18592](https://github.com/astral-sh/ruff/pull/18592))
- \[`ruff`\] Handle extra arguments to `deque` (`RUF037`) ([#18614](https://github.com/astral-sh/ruff/pull/18614))
- \[`ruff`\] Preserve parentheses around `deque` in fix for `unnecessary-empty-iterable-within-deque-call` (`RUF037`) ([#18598](https://github.com/astral-sh/ruff/pull/18598))
- \[`ruff`\] Validate arguments before offering a fix (`RUF056`) ([#18631](https://github.com/astral-sh/ruff/pull/18631))
- \[`ruff`\] Skip fix for `RUF059` if dummy name is already bound ([#18509](https://github.com/astral-sh/ruff/pull/18509))
- \[`pylint`\] Fix `PLW0128` to check assignment targets in square brackets and after asterisks ([#18665](https://github.com/astral-sh/ruff/pull/18665))
-
-### Rule changes
-
- Fix false positive on mutations in `return` statements (`B909`) ([#18408](https://github.com/astral-sh/ruff/pull/18408))
- Treat `ty:` comments as pragma comments ([#18532](https://github.com/astral-sh/ruff/pull/18532))
- \[`flake8-pyi`\] Apply `custom-typevar-for-self` to string annotations (`PYI019`) ([#18311](https://github.com/astral-sh/ruff/pull/18311))
- \[`pyupgrade`\] Don't offer a fix for `Optional[None]` (`UP007`, `UP045)` ([#18545](https://github.com/astral-sh/ruff/pull/18545))
- \[`pyupgrade`\] Fix `super(__class__, self)` detection (`UP008`) ([#18478](https://github.com/astral-sh/ruff/pull/18478))
- \[`refurb`\] Make the fix for `FURB163` unsafe for `log2`, `log10`, `*args`, and deleted comments ([#18645](https://github.com/astral-sh/ruff/pull/18645))
-
-### Server
-
- Support cancellation requests ([#18627](https://github.com/astral-sh/ruff/pull/18627))
-
-### Documentation
-
- Drop confusing second `*` from glob pattern example for `per-file-target-version` ([#18709](https://github.com/astral-sh/ruff/pull/18709))
- Update Neovim configuration examples ([#18491](https://github.com/astral-sh/ruff/pull/18491))
- \[`pylint`\] De-emphasize `__hash__ = Parent.__hash__` (`PLW1641`) ([#18613](https://github.com/astral-sh/ruff/pull/18613))
- \[`refurb`\] Add a note about float literal handling (`FURB157`) ([#18615](https://github.com/astral-sh/ruff/pull/18615))
-
-## 0.12.1
-
-### Preview features
-
- \[`flake8-errmsg`\] Extend `EM101` to support byte strings ([#18867](https://github.com/astral-sh/ruff/pull/18867))
- \[`flake8-use-pathlib`\] Add autofix for `PTH202` ([#18763](https://github.com/astral-sh/ruff/pull/18763))
- \[`pygrep-hooks`\] Add `AsyncMock` methods to `invalid-mock-access` (`PGH005`) ([#18547](https://github.com/astral-sh/ruff/pull/18547))
- \[`pylint`\] Ignore `__init__.py` files in (`PLC0414`) ([#18400](https://github.com/astral-sh/ruff/pull/18400))
- \[`ruff`\] Trigger `RUF037` for empty string and byte strings ([#18862](https://github.com/astral-sh/ruff/pull/18862))
- [formatter] Fix missing blank lines before decorated classes in `.pyi` files ([#18888](https://github.com/astral-sh/ruff/pull/18888))
-
-### Bug fixes
-
- Avoid generating diagnostics with per-file ignores ([#18801](https://github.com/astral-sh/ruff/pull/18801))
- Handle parenthesized arguments in `remove_argument` ([#18805](https://github.com/astral-sh/ruff/pull/18805))
- \[`flake8-logging`\] Avoid false positive for `exc_info=True` outside `logger.exception` (`LOG014`) ([#18737](https://github.com/astral-sh/ruff/pull/18737))
- \[`flake8-pytest-style`\] Enforce `pytest` import for decorators ([#18779](https://github.com/astral-sh/ruff/pull/18779))
- \[`flake8-pytest-style`\] Mark autofix for `PT001` and `PT023` as unsafe if there's comments in the decorator ([#18792](https://github.com/astral-sh/ruff/pull/18792))
- \[`flake8-pytest-style`\] `PT001`/`PT023` fix makes syntax error on parenthesized decorator ([#18782](https://github.com/astral-sh/ruff/pull/18782))
- \[`flake8-raise`\] Make fix unsafe if it deletes comments (`RSE102`) ([#18788](https://github.com/astral-sh/ruff/pull/18788))
- \[`flake8-simplify`\] Fix `SIM911` autofix creating a syntax error ([#18793](https://github.com/astral-sh/ruff/pull/18793))
- \[`flake8-simplify`\] Fix false negatives for shadowed bindings (`SIM910`, `SIM911`) ([#18794](https://github.com/astral-sh/ruff/pull/18794))
- \[`flake8-simplify`\] Preserve original behavior for `except ()` and bare `except` (`SIM105`) ([#18213](https://github.com/astral-sh/ruff/pull/18213))
- \[`flake8-pyi`\] Fix `PYI041`'s fix causing `TypeError` with `None | None | ...` ([#18637](https://github.com/astral-sh/ruff/pull/18637))
- \[`perflint`\] Fix `PERF101` autofix creating a syntax error and mark autofix as unsafe if there are comments in the `list` call expr ([#18803](https://github.com/astral-sh/ruff/pull/18803))
- \[`perflint`\] Fix false negative in `PERF401` ([#18866](https://github.com/astral-sh/ruff/pull/18866))
- \[`pylint`\] Avoid flattening nested `min`/`max` when outer call has single argument (`PLW3301`) ([#16885](https://github.com/astral-sh/ruff/pull/16885))
- \[`pylint`\] Fix `PLC2801` autofix creating a syntax error ([#18857](https://github.com/astral-sh/ruff/pull/18857))
- \[`pylint`\] Mark `PLE0241` autofix as unsafe if there's comments in the base classes ([#18832](https://github.com/astral-sh/ruff/pull/18832))
- \[`pylint`\] Suppress `PLE2510`/`PLE2512`/`PLE2513`/`PLE2514`/`PLE2515` autofix if the text contains an odd number of backslashes ([#18856](https://github.com/astral-sh/ruff/pull/18856))
- \[`refurb`\] Detect more exotic float literals in `FURB164` ([#18925](https://github.com/astral-sh/ruff/pull/18925))
- \[`refurb`\] Fix `FURB163` autofix creating a syntax error for `yield` expressions ([#18756](https://github.com/astral-sh/ruff/pull/18756))
- \[`refurb`\] Mark `FURB129` autofix as unsafe if there's comments in the `readlines` call ([#18858](https://github.com/astral-sh/ruff/pull/18858))
- \[`ruff`\] Fix false positives and negatives in `RUF010` ([#18690](https://github.com/astral-sh/ruff/pull/18690))
- Fix casing of `analyze.direction` variant names ([#18892](https://github.com/astral-sh/ruff/pull/18892))
-
-### Rule changes
-
- Fix f-string interpolation escaping in generated fixes ([#18882](https://github.com/astral-sh/ruff/pull/18882))
- \[`flake8-return`\] Mark `RET501` fix unsafe if comments are inside ([#18780](https://github.com/astral-sh/ruff/pull/18780))
- \[`flake8-async`\] Fix detection for large integer sleep durations in `ASYNC116` rule ([#18767](https://github.com/astral-sh/ruff/pull/18767))
- \[`flake8-async`\] Mark autofix for `ASYNC115` as unsafe if the call expression contains comments ([#18753](https://github.com/astral-sh/ruff/pull/18753))
- \[`flake8-bugbear`\] Mark autofix for `B004` as unsafe if the `hasattr` call expr contains comments ([#18755](https://github.com/astral-sh/ruff/pull/18755))
- \[`flake8-comprehension`\] Mark autofix for `C420` as unsafe if there's comments inside the dict comprehension ([#18768](https://github.com/astral-sh/ruff/pull/18768))
- \[`flake8-comprehensions`\] Handle template strings for comprehension fixes ([#18710](https://github.com/astral-sh/ruff/pull/18710))
- \[`flake8-future-annotations`\] Add autofix (`FA100`) ([#18903](https://github.com/astral-sh/ruff/pull/18903))
- \[`pyflakes`\] Mark `F504`/`F522`/`F523` autofix as unsafe if there's a call with side effect ([#18839](https://github.com/astral-sh/ruff/pull/18839))
- \[`pylint`\] Allow fix with comments and document performance implications (`PLW3301`) ([#18936](https://github.com/astral-sh/ruff/pull/18936))
- \[`pylint`\] Detect more exotic `NaN` literals in `PLW0177` ([#18630](https://github.com/astral-sh/ruff/pull/18630))
- \[`pylint`\] Fix `PLC1802` autofix creating a syntax error and mark autofix as unsafe if there's comments in the `len` call ([#18836](https://github.com/astral-sh/ruff/pull/18836))
- \[`pyupgrade`\] Extend version detection to include `sys.version_info.major` (`UP036`) ([#18633](https://github.com/astral-sh/ruff/pull/18633))
- \[`ruff`\] Add lint rule `RUF064` for calling `chmod` with non-octal integers ([#18541](https://github.com/astral-sh/ruff/pull/18541))
- \[`ruff`\] Added `cls.__dict__.get('__annotations__')` check (`RUF063`) ([#18233](https://github.com/astral-sh/ruff/pull/18233))
- \[`ruff`\] Frozen `dataclass` default should be valid (`RUF009`) ([#18735](https://github.com/astral-sh/ruff/pull/18735))
-
-### Server
-
- Consider virtual path for various server actions ([#18910](https://github.com/astral-sh/ruff/pull/18910))
-
-### Documentation
-
- Add fix safety sections ([#18940](https://github.com/astral-sh/ruff/pull/18940),[#18841](https://github.com/astral-sh/ruff/pull/18841),[#18802](https://github.com/astral-sh/ruff/pull/18802),[#18837](https://github.com/astral-sh/ruff/pull/18837),[#18800](https://github.com/astral-sh/ruff/pull/18800),[#18415](https://github.com/astral-sh/ruff/pull/18415),[#18853](https://github.com/astral-sh/ruff/pull/18853),[#18842](https://github.com/astral-sh/ruff/pull/18842))
- Use updated pre-commit id ([#18718](https://github.com/astral-sh/ruff/pull/18718))
- \[`perflint`\] Small docs improvement to `PERF401` ([#18786](https://github.com/astral-sh/ruff/pull/18786))
- \[`pyupgrade`\]: Use `super()`, not `__super__` in error messages (`UP008`) ([#18743](https://github.com/astral-sh/ruff/pull/18743))
- \[`flake8-pie`\] Small docs fix to `PIE794` ([#18829](https://github.com/astral-sh/ruff/pull/18829))
- \[`flake8-pyi`\] Correct `collections-named-tuple` example to use PascalCase assignment ([#16884](https://github.com/astral-sh/ruff/pull/16884))
- \[`flake8-pie`\] Add note on type checking benefits to `unnecessary-dict-kwargs` (`PIE804`) ([#18666](https://github.com/astral-sh/ruff/pull/18666))
- \[`pycodestyle`\] Clarify PEP 8 relationship to `whitespace-around-operator` rules ([#18870](https://github.com/astral-sh/ruff/pull/18870))
-
-### Other changes
-
- Disallow newlines in format specifiers of single quoted f- or t-strings ([#18708](https://github.com/astral-sh/ruff/pull/18708))
- \[`flake8-logging`\] Add fix safety section to `LOG002` ([#18840](https://github.com/astral-sh/ruff/pull/18840))
- \[`pyupgrade`\] Add fix safety section to `UP010` ([#18838](https://github.com/astral-sh/ruff/pull/18838))
-
-## 0.12.2
-
-### Preview features
-
- \[`flake8-pyi`\] Expand `Optional[A]` to `A | None` (`PYI016`) ([#18572](https://github.com/astral-sh/ruff/pull/18572))
- \[`pyupgrade`\] Mark `UP008` fix safe if no comments are in range ([#18683](https://github.com/astral-sh/ruff/pull/18683))
-
-### Bug fixes
-
- \[`flake8-comprehensions`\] Fix `C420` to prepend whitespace when needed ([#18616](https://github.com/astral-sh/ruff/pull/18616))
- \[`perflint`\] Fix `PERF403` panic on attribute or subscription loop variable ([#19042](https://github.com/astral-sh/ruff/pull/19042))
- \[`pydocstyle`\] Fix `D413` infinite loop for parenthesized docstring ([#18930](https://github.com/astral-sh/ruff/pull/18930))
- \[`pylint`\] Fix `PLW0108` autofix introducing a syntax error when the lambda's body contains an assignment expression ([#18678](https://github.com/astral-sh/ruff/pull/18678))
- \[`refurb`\] Fix false positive on empty tuples (`FURB168`) ([#19058](https://github.com/astral-sh/ruff/pull/19058))
- \[`ruff`\] Allow more `field` calls from `attrs` (`RUF009`) ([#19021](https://github.com/astral-sh/ruff/pull/19021))
- \[`ruff`\] Fix syntax error introduced for an empty string followed by a u-prefixed string (`UP025`) ([#18899](https://github.com/astral-sh/ruff/pull/18899))
-
-### Rule changes
-
- \[`flake8-executable`\] Allow `uvx` in shebang line (`EXE003`) ([#18967](https://github.com/astral-sh/ruff/pull/18967))
- \[`pandas`\] Avoid flagging `PD002` if `pandas` is not imported ([#18963](https://github.com/astral-sh/ruff/pull/18963))
- \[`pyupgrade`\] Avoid PEP-604 unions with `typing.NamedTuple` (`UP007`, `UP045`) ([#18682](https://github.com/astral-sh/ruff/pull/18682))
-
-### Documentation
-
- Document link between `import-outside-top-level (PLC0415)` and `lint.flake8-tidy-imports.banned-module-level-imports` ([#18733](https://github.com/astral-sh/ruff/pull/18733))
- Fix description of the `format.skip-magic-trailing-comma` example ([#19095](https://github.com/astral-sh/ruff/pull/19095))
- \[`airflow`\] Make `AIR302` example error out-of-the-box ([#18988](https://github.com/astral-sh/ruff/pull/18988))
- \[`airflow`\] Make `AIR312` example error out-of-the-box ([#18989](https://github.com/astral-sh/ruff/pull/18989))
- \[`flake8-annotations`\] Make `ANN401` example error out-of-the-box ([#18974](https://github.com/astral-sh/ruff/pull/18974))
- \[`flake8-async`\] Make `ASYNC100` example error out-of-the-box ([#18993](https://github.com/astral-sh/ruff/pull/18993))
- \[`flake8-async`\] Make `ASYNC105` example error out-of-the-box ([#19002](https://github.com/astral-sh/ruff/pull/19002))
- \[`flake8-async`\] Make `ASYNC110` example error out-of-the-box ([#18975](https://github.com/astral-sh/ruff/pull/18975))
- \[`flake8-async`\] Make `ASYNC210` example error out-of-the-box ([#18977](https://github.com/astral-sh/ruff/pull/18977))
- \[`flake8-async`\] Make `ASYNC220`, `ASYNC221`, and `ASYNC222` examples error out-of-the-box ([#18978](https://github.com/astral-sh/ruff/pull/18978))
- \[`flake8-async`\] Make `ASYNC251` example error out-of-the-box ([#18990](https://github.com/astral-sh/ruff/pull/18990))
- \[`flake8-bandit`\] Make `S201` example error out-of-the-box ([#19017](https://github.com/astral-sh/ruff/pull/19017))
- \[`flake8-bandit`\] Make `S604` and `S609` examples error out-of-the-box ([#19049](https://github.com/astral-sh/ruff/pull/19049))
- \[`flake8-bugbear`\] Make `B028` example error out-of-the-box ([#19054](https://github.com/astral-sh/ruff/pull/19054))
- \[`flake8-bugbear`\] Make `B911` example error out-of-the-box ([#19051](https://github.com/astral-sh/ruff/pull/19051))
- \[`flake8-datetimez`\] Make `DTZ011` example error out-of-the-box ([#19055](https://github.com/astral-sh/ruff/pull/19055))
- \[`flake8-datetimez`\] Make `DTZ901` example error out-of-the-box ([#19056](https://github.com/astral-sh/ruff/pull/19056))
- \[`flake8-pyi`\] Make `PYI032` example error out-of-the-box ([#19061](https://github.com/astral-sh/ruff/pull/19061))
- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI014`, `PYI015`) ([#19097](https://github.com/astral-sh/ruff/pull/19097))
- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI042`) ([#19101](https://github.com/astral-sh/ruff/pull/19101))
- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI059`) ([#19080](https://github.com/astral-sh/ruff/pull/19080))
- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI062`) ([#19079](https://github.com/astral-sh/ruff/pull/19079))
- \[`flake8-pytest-style`\] Make example error out-of-the-box (`PT023`) ([#19104](https://github.com/astral-sh/ruff/pull/19104))
- \[`flake8-pytest-style`\] Make example error out-of-the-box (`PT030`) ([#19105](https://github.com/astral-sh/ruff/pull/19105))
- \[`flake8-quotes`\] Make example error out-of-the-box (`Q003`) ([#19106](https://github.com/astral-sh/ruff/pull/19106))
- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM110`) ([#19113](https://github.com/astral-sh/ruff/pull/19113))
- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM113`) ([#19109](https://github.com/astral-sh/ruff/pull/19109))
- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM401`) ([#19110](https://github.com/astral-sh/ruff/pull/19110))
- \[`pyflakes`\] Fix backslash in docs (`F621`) ([#19098](https://github.com/astral-sh/ruff/pull/19098))
- \[`pylint`\] Fix `PLC0415` example ([#18970](https://github.com/astral-sh/ruff/pull/18970))
-
-## 0.12.3
-
-### Preview features
-
- \[`flake8-bugbear`\] Support non-context-manager calls in `B017` ([#19063](https://github.com/astral-sh/ruff/pull/19063))
- \[`flake8-use-pathlib`\] Add autofixes for `PTH100`, `PTH106`, `PTH107`, `PTH108`, `PTH110`, `PTH111`, `PTH112`, `PTH113`, `PTH114`, `PTH115`, `PTH117`, `PTH119`, `PTH120` ([#19213](https://github.com/astral-sh/ruff/pull/19213))
- \[`flake8-use-pathlib`\] Add autofixes for `PTH203`, `PTH204`, `PTH205` ([#18922](https://github.com/astral-sh/ruff/pull/18922))
-
-### Bug fixes
-
- \[`flake8-return`\] Fix false-positive for variables used inside nested functions in `RET504` ([#18433](https://github.com/astral-sh/ruff/pull/18433))
- Treat form feed as valid whitespace before a line continuation ([#19220](https://github.com/astral-sh/ruff/pull/19220))
- \[`flake8-type-checking`\] Fix syntax error introduced by fix (`TC008`) ([#19150](https://github.com/astral-sh/ruff/pull/19150))
- \[`pyupgrade`\] Keyword arguments in `super` should suppress the `UP008` fix ([#19131](https://github.com/astral-sh/ruff/pull/19131))
-
-### Documentation
-
- \[`flake8-pyi`\] Make example error out-of-the-box (`PYI007`, `PYI008`) ([#19103](https://github.com/astral-sh/ruff/pull/19103))
- \[`flake8-simplify`\] Make example error out-of-the-box (`SIM116`) ([#19111](https://github.com/astral-sh/ruff/pull/19111))
- \[`flake8-type-checking`\] Make example error out-of-the-box (`TC001`) ([#19151](https://github.com/astral-sh/ruff/pull/19151))
- \[`flake8-use-pathlib`\] Make example error out-of-the-box (`PTH210`) ([#19189](https://github.com/astral-sh/ruff/pull/19189))
- \[`pycodestyle`\] Make example error out-of-the-box (`E272`) ([#19191](https://github.com/astral-sh/ruff/pull/19191))
- \[`pycodestyle`\] Make example not raise unnecessary `SyntaxError` (`E114`) ([#19190](https://github.com/astral-sh/ruff/pull/19190))
- \[`pydoclint`\] Make example error out-of-the-box (`DOC501`) ([#19218](https://github.com/astral-sh/ruff/pull/19218))
- \[`pylint`, `pyupgrade`\] Fix syntax errors in examples (`PLW1501`, `UP028`) ([#19127](https://github.com/astral-sh/ruff/pull/19127))
- \[`pylint`\] Update `missing-maxsplit-arg` docs and error to suggest proper usage (`PLC0207`) ([#18949](https://github.com/astral-sh/ruff/pull/18949))
- \[`flake8-bandit`\] Make example error out-of-the-box (`S412`) ([#19241](https://github.com/astral-sh/ruff/pull/19241))
-
-## 0.12.4
-
-### Preview features
-
- \[`flake8-type-checking`, `pyupgrade`, `ruff`\] Add `from __future__ import annotations` when it would allow new fixes (`TC001`, `TC002`, `TC003`, `UP037`, `RUF013`) ([#19100](https://github.com/astral-sh/ruff/pull/19100))
- \[`flake8-use-pathlib`\] Add autofix for `PTH109` ([#19245](https://github.com/astral-sh/ruff/pull/19245))
- \[`pylint`\] Detect indirect `pathlib.Path` usages for `unspecified-encoding` (`PLW1514`) ([#19304](https://github.com/astral-sh/ruff/pull/19304))
-
-### Bug fixes
-
- \[`flake8-bugbear`\] Fix `B017` false negatives for keyword exception arguments ([#19217](https://github.com/astral-sh/ruff/pull/19217))
- \[`flake8-use-pathlib`\] Fix false negative on direct `Path()` instantiation (`PTH210`) ([#19388](https://github.com/astral-sh/ruff/pull/19388))
- \[`flake8-django`\] Fix `DJ008` false positive for abstract models with type-annotated `abstract` field ([#19221](https://github.com/astral-sh/ruff/pull/19221))
- \[`isort`\] Fix `I002` import insertion after docstring with multiple string statements ([#19222](https://github.com/astral-sh/ruff/pull/19222))
- \[`isort`\] Treat form feed as valid whitespace before a semicolon ([#19343](https://github.com/astral-sh/ruff/pull/19343))
- \[`pydoclint`\] Fix `SyntaxError` from fixes with line continuations (`D201`, `D202`) ([#19246](https://github.com/astral-sh/ruff/pull/19246))
- \[`refurb`\] `FURB164` fix should validate arguments and should usually be marked unsafe ([#19136](https://github.com/astral-sh/ruff/pull/19136))
-
-### Rule changes
-
- \[`flake8-use-pathlib`\] Skip single dots for `invalid-pathlib-with-suffix` (`PTH210`) on versions >= 3.14 ([#19331](https://github.com/astral-sh/ruff/pull/19331))
- \[`pep8_naming`\] Avoid false positives on standard library functions with uppercase names (`N802`) ([#18907](https://github.com/astral-sh/ruff/pull/18907))
- \[`pycodestyle`\] Handle brace escapes for t-strings in logical lines ([#19358](https://github.com/astral-sh/ruff/pull/19358))
- \[`pylint`\] Extend invalid string character rules to include t-strings ([#19355](https://github.com/astral-sh/ruff/pull/19355))
- \[`ruff`\] Allow `strict` kwarg when checking for `starmap-zip` (`RUF058`) in Python 3.14+ ([#19333](https://github.com/astral-sh/ruff/pull/19333))
-
-### Documentation
-
- \[`flake8-type-checking`\] Make `TC010` docs example more realistic ([#19356](https://github.com/astral-sh/ruff/pull/19356))
- Make more documentation examples error out-of-the-box ([#19288](https://github.com/astral-sh/ruff/pull/19288),[#19272](https://github.com/astral-sh/ruff/pull/19272),[#19291](https://github.com/astral-sh/ruff/pull/19291),[#19296](https://github.com/astral-sh/ruff/pull/19296),[#19292](https://github.com/astral-sh/ruff/pull/19292),[#19295](https://github.com/astral-sh/ruff/pull/19295),[#19297](https://github.com/astral-sh/ruff/pull/19297),[#19309](https://github.com/astral-sh/ruff/pull/19309))
-
-## 0.12.5
-
-### Preview features
-
- \[`flake8-use-pathlib`\] Add autofix for `PTH101`, `PTH104`, `PTH105`, `PTH121` ([#19404](https://github.com/astral-sh/ruff/pull/19404))
- \[`ruff`\] Support byte strings (`RUF055`) ([#18926](https://github.com/astral-sh/ruff/pull/18926))
-
-### Bug fixes
-
- Fix `unreachable` panic in parser ([#19183](https://github.com/astral-sh/ruff/pull/19183))
- \[`flake8-pyi`\] Skip fix if all `Union` members are `None` (`PYI016`) ([#19416](https://github.com/astral-sh/ruff/pull/19416))
- \[`perflint`\] Parenthesize generator expressions (`PERF401`) ([#19325](https://github.com/astral-sh/ruff/pull/19325))
- \[`pylint`\] Handle empty comments after line continuation (`PLR2044`) ([#19405](https://github.com/astral-sh/ruff/pull/19405))
-
-### Rule changes
-
- \[`pep8-naming`\] Fix `N802` false positives for `CGIHTTPRequestHandler` and `SimpleHTTPRequestHandler` ([#19432](https://github.com/astral-sh/ruff/pull/19432))
-
-## 0.12.6
-
-### Preview features
-
- \[`flake8-commas`\] Add support for trailing comma checks in type parameter lists (`COM812`, `COM819`) ([#19390](https://github.com/astral-sh/ruff/pull/19390))
- \[`pylint`\] Implement auto-fix for `missing-maxsplit-arg` (`PLC0207`) ([#19387](https://github.com/astral-sh/ruff/pull/19387))
- \[`ruff`\] Offer fixes for `RUF039` in more cases ([#19065](https://github.com/astral-sh/ruff/pull/19065))
-
-### Bug fixes
-
- Support `.pyi` files in ruff analyze graph ([#19611](https://github.com/astral-sh/ruff/pull/19611))
- \[`flake8-pyi`\] Preserve inline comment in ellipsis removal (`PYI013`) ([#19399](https://github.com/astral-sh/ruff/pull/19399))
- \[`perflint`\] Ignore rule if target is `global` or `nonlocal` (`PERF401`) ([#19539](https://github.com/astral-sh/ruff/pull/19539))
- \[`pyupgrade`\] Fix `UP030` to avoid modifying double curly braces in format strings ([#19378](https://github.com/astral-sh/ruff/pull/19378))
- \[`refurb`\] Ignore decorated functions for `FURB118` ([#19339](https://github.com/astral-sh/ruff/pull/19339))
- \[`refurb`\] Mark `int` and `bool` cases for `Decimal.from_float` as safe fixes (`FURB164`) ([#19468](https://github.com/astral-sh/ruff/pull/19468))
- \[`ruff`\] Fix `RUF033` for named default expressions ([#19115](https://github.com/astral-sh/ruff/pull/19115))
-
-### Rule changes
-
- \[`flake8-blind-except`\] Change `BLE001` to permit `logging.critical(..., exc_info=True)` ([#19520](https://github.com/astral-sh/ruff/pull/19520))
-
-### Performance
-
- Add support for specifying minimum dots in detected string imports ([#19538](https://github.com/astral-sh/ruff/pull/19538))
-
-## 0.12.7
-
-This is a follow-up release to 0.12.6. Because of an issue in the package metadata, 0.12.6 failed to publish fully to PyPI and has been yanked. Similarly, there is no GitHub release or Git tag for 0.12.6. The contents of the 0.12.7 release are identical to 0.12.6, except for the updated metadata.
-
-## 0.12.8
-
-### Preview features
-
- \[`flake8-use-pathlib`\] Expand `PTH201` to check all `PurePath` subclasses ([#19440](https://github.com/astral-sh/ruff/pull/19440))
-
-### Bug fixes
-
- \[`flake8-blind-except`\] Change `BLE001` to correctly parse exception tuples ([#19747](https://github.com/astral-sh/ruff/pull/19747))
- \[`flake8-errmsg`\] Exclude `typing.cast` from `EM101` ([#19656](https://github.com/astral-sh/ruff/pull/19656))
- \[`flake8-simplify`\] Fix raw string handling in `SIM905` for embedded quotes ([#19591](https://github.com/astral-sh/ruff/pull/19591))
- \[`flake8-import-conventions`\] Avoid false positives for NFKC-normalized `__debug__` import aliases in `ICN001` ([#19411](https://github.com/astral-sh/ruff/pull/19411))
- \[`isort`\] Fix syntax error after docstring ending with backslash (`I002`) ([#19505](https://github.com/astral-sh/ruff/pull/19505))
- \[`pylint`\] Mark `PLC0207` fixes as unsafe when `*args` unpacking is present ([#19679](https://github.com/astral-sh/ruff/pull/19679))
- \[`pyupgrade`\] Prevent infinite loop with `I002` (`UP010`, `UP035`) ([#19413](https://github.com/astral-sh/ruff/pull/19413))
- \[`ruff`\] Parenthesize generator expressions in f-strings (`RUF010`) ([#19434](https://github.com/astral-sh/ruff/pull/19434))
-
-### Rule changes
-
- \[`eradicate`\] Don't flag `pyrefly` pragmas as unused code (`ERA001`) ([#19731](https://github.com/astral-sh/ruff/pull/19731))
-
-### Documentation
-
- Replace "associative" with "commutative" in docs for `RUF036` ([#19706](https://github.com/astral-sh/ruff/pull/19706))
- Fix copy and line separator colors in dark mode ([#19630](https://github.com/astral-sh/ruff/pull/19630))
- Fix link to `typing` documentation ([#19648](https://github.com/astral-sh/ruff/pull/19648))
- \[`refurb`\] Make more examples error out-of-the-box ([#19695](https://github.com/astral-sh/ruff/pull/19695),[#19673](https://github.com/astral-sh/ruff/pull/19673),[#19672](https://github.com/astral-sh/ruff/pull/19672))
-
-### Other changes
-
- Include column numbers in GitLab output format ([#19708](https://github.com/astral-sh/ruff/pull/19708))
- Always expand tabs to four spaces in diagnostics ([#19618](https://github.com/astral-sh/ruff/pull/19618))
- Update pre-commit's `ruff` id ([#19654](https://github.com/astral-sh/ruff/pull/19654))
-
-## 0.12.9
-
-### Preview features
-
- \[`airflow`\] Add check for `airflow.secrets.cache.SecretCache` (`AIR301`) ([#17707](https://github.com/astral-sh/ruff/pull/17707))
- \[`ruff`\] Offer a safe fix for multi-digit zeros (`RUF064`) ([#19847](https://github.com/astral-sh/ruff/pull/19847))
-
-### Bug fixes
-
- \[`flake8-blind-except`\] Fix `BLE001` false-positive on `raise ... from None` ([#19755](https://github.com/astral-sh/ruff/pull/19755))
- \[`flake8-comprehensions`\] Fix false positive for `C420` with attribute, subscript, or slice assignment targets ([#19513](https://github.com/astral-sh/ruff/pull/19513))
- \[`flake8-simplify`\] Fix handling of U+001C..U+001F whitespace (`SIM905`) ([#19849](https://github.com/astral-sh/ruff/pull/19849))
-
-### Rule changes
-
- \[`pylint`\] Use lowercase hex characters to match the formatter (`PLE2513`) ([#19808](https://github.com/astral-sh/ruff/pull/19808))
-
-### Documentation
-
- Fix `lint.future-annotations` link ([#19876](https://github.com/astral-sh/ruff/pull/19876))
-
-### Other changes
-
- Build `riscv64` binaries for release ([#19819](https://github.com/astral-sh/ruff/pull/19819))
-
- Add rule code to error description in GitLab output ([#19896](https://github.com/astral-sh/ruff/pull/19896))
-
- Improve rendering of the `full` output format ([#19415](https://github.com/astral-sh/ruff/pull/19415))
-
-    Below is an example diff for [`F401`](https://docs.astral.sh/ruff/rules/unused-import/):
-
-    ```diff
-    -unused.py:8:19: F401 [*] `pathlib` imported but unused
-    +F401 [*] `pathlib` imported but unused
-    +  --> unused.py:8:19
-        |
-      7 | # Unused, _not_ marked as required (due to the alias).
-      8 | import pathlib as non_alias
-    -   |                   ^^^^^^^^^ F401
-    +   |                   ^^^^^^^^^
-      9 |
-     10 | # Unused, marked as required.
-        |
-    -   = help: Remove unused import: `pathlib`
-    +help: Remove unused import: `pathlib`
-    ```
-
-    For now, the primary difference is the movement of the filename, line number, and column information to a second line in the header. This new representation will allow us to make further additions to Ruff's diagnostics, such as adding sub-diagnostics and multiple annotations to the same snippet.
-
-## 0.12.10
-
-### Preview features
-
- \[`flake8-simplify`\] Implement fix for `maxsplit` without separator (`SIM905`) ([#19851](https://github.com/astral-sh/ruff/pull/19851))
- \[`flake8-use-pathlib`\] Add fixes for `PTH102` and `PTH103` ([#19514](https://github.com/astral-sh/ruff/pull/19514))
-
-### Bug fixes
-
- \[`isort`\] Handle multiple continuation lines after module docstring (`I002`) ([#19818](https://github.com/astral-sh/ruff/pull/19818))
- \[`pyupgrade`\] Avoid reporting `__future__` features as unnecessary when they are used (`UP010`) ([#19769](https://github.com/astral-sh/ruff/pull/19769))
- \[`pyupgrade`\] Handle nested `Optional`s (`UP045`) ([#19770](https://github.com/astral-sh/ruff/pull/19770))
-
-### Rule changes
-
- \[`pycodestyle`\] Make `E731` fix unsafe instead of display-only for class assignments ([#19700](https://github.com/astral-sh/ruff/pull/19700))
- \[`pyflakes`\] Add secondary annotation showing previous definition (`F811`) ([#19900](https://github.com/astral-sh/ruff/pull/19900))
-
-### Documentation
-
- Fix description of global config file discovery strategy ([#19188](https://github.com/astral-sh/ruff/pull/19188))
- Update outdated links to <https://typing.python.org/en/latest/source/stubs.html> ([#19992](https://github.com/astral-sh/ruff/pull/19992))
- \[`flake8-annotations`\] Remove unused import in example (`ANN401`) ([#20000](https://github.com/astral-sh/ruff/pull/20000))
-
-## 0.12.11
-
-### Preview features
-
- \[`airflow`\] Extend `AIR311` and `AIR312` rules ([#20082](https://github.com/astral-sh/ruff/pull/20082))
- \[`airflow`\] Replace wrong path `airflow.io.storage` with `airflow.io.store` (`AIR311`) ([#20081](https://github.com/astral-sh/ruff/pull/20081))
- \[`flake8-async`\] Implement `blocking-http-call-httpx-in-async-function` (`ASYNC212`) ([#20091](https://github.com/astral-sh/ruff/pull/20091))
- \[`flake8-logging-format`\] Add auto-fix for f-string logging calls (`G004`) ([#19303](https://github.com/astral-sh/ruff/pull/19303))
- \[`flake8-use-pathlib`\] Add autofix for `PTH211` ([#20009](https://github.com/astral-sh/ruff/pull/20009))
- \[`flake8-use-pathlib`\] Make `PTH100` fix unsafe because it can change behavior ([#20100](https://github.com/astral-sh/ruff/pull/20100))
-
-### Bug fixes
-
- \[`pyflakes`, `pylint`\] Fix false positives caused by `__class__` cell handling (`F841`, `PLE0117`) ([#20048](https://github.com/astral-sh/ruff/pull/20048))
- \[`pyflakes`\] Fix `allowed-unused-imports` matching for top-level modules (`F401`) ([#20115](https://github.com/astral-sh/ruff/pull/20115))
- \[`ruff`\] Fix false positive for t-strings in `default-factory-kwarg` (`RUF026`) ([#20032](https://github.com/astral-sh/ruff/pull/20032))
- \[`ruff`\] Preserve relative whitespace in multi-line expressions (`RUF033`) ([#19647](https://github.com/astral-sh/ruff/pull/19647))
-
-### Rule changes
-
- \[`ruff`\] Handle empty t-strings in `unnecessary-empty-iterable-within-deque-call` (`RUF037`) ([#20045](https://github.com/astral-sh/ruff/pull/20045))
-
-### Documentation
-
- Fix incorrect `D413` links in docstrings convention FAQ ([#20089](https://github.com/astral-sh/ruff/pull/20089))
- \[`flake8-use-pathlib`\] Update links to the table showing the correspondence between `os` and `pathlib` ([#20103](https://github.com/astral-sh/ruff/pull/20103))
-
-## 0.12.12
-
-### Preview features
-
- Show fixes by default ([#19919](https://github.com/astral-sh/ruff/pull/19919))
- \[`airflow`\] Convert `DatasetOrTimeSchedule(datasets=...)` to `AssetOrTimeSchedule(assets=...)` (`AIR311`) ([#20202](https://github.com/astral-sh/ruff/pull/20202))
- \[`airflow`\] Improve the `AIR002` error message ([#20173](https://github.com/astral-sh/ruff/pull/20173))
- \[`airflow`\] Move `airflow.operators.postgres_operator.Mapping` from `AIR302` to `AIR301` ([#20172](https://github.com/astral-sh/ruff/pull/20172))
- \[`flake8-async`\] Implement `blocking-input` rule (`ASYNC250`) ([#20122](https://github.com/astral-sh/ruff/pull/20122))
- \[`flake8-use-pathlib`\] Make `PTH119` and `PTH120` fixes unsafe because they can change behavior ([#20118](https://github.com/astral-sh/ruff/pull/20118))
- \[`pylint`\] Add U+061C to `PLE2502` ([#20106](https://github.com/astral-sh/ruff/pull/20106))
- \[`ruff`\] Fix false negative for empty f-strings in `deque` calls (`RUF037`) ([#20109](https://github.com/astral-sh/ruff/pull/20109))
-
-### Bug fixes
-
- Less confidently mark f-strings as empty when inferring truthiness ([#20152](https://github.com/astral-sh/ruff/pull/20152))
- \[`fastapi`\] Fix false positive for paths with spaces around parameters (`FAST003`) ([#20077](https://github.com/astral-sh/ruff/pull/20077))
- \[`flake8-comprehensions`\] Skip `C417` when lambda contains `yield`/`yield from` ([#20201](https://github.com/astral-sh/ruff/pull/20201))
- \[`perflint`\] Handle tuples in dictionary comprehensions (`PERF403`) ([#19934](https://github.com/astral-sh/ruff/pull/19934))
-
-### Rule changes
-
- \[`pycodestyle`\] Preserve return type annotation for `ParamSpec` (`E731`) ([#20108](https://github.com/astral-sh/ruff/pull/20108))
-
-### Documentation
-
- Add fix safety sections to docs ([#17490](https://github.com/astral-sh/ruff/pull/17490),[#17499](https://github.com/astral-sh/ruff/pull/17499))
-
-[`boolean-type-hint-positional-argument`]: https://docs.astral.sh/ruff/rules/boolean-type-hint-positional-argument
-[`collection-literal-concatenation`]: https://docs.astral.sh/ruff/rules/collection-literal-concatenation
-[`if-else-block-instead-of-if-exp`]: https://docs.astral.sh/ruff/rules/if-else-block-instead-of-if-exp
-[`non-pep604-annotation-optional`]: https://docs.astral.sh/ruff/rules/non-pep604-annotation-optional
-[`non-pep604-annotation-union`]: https://docs.astral.sh/ruff/rules/non-pep604-annotation-union
-[`readlines-in-for`]: https://docs.astral.sh/ruff/rules/readlines-in-for
-[`subprocess-without-shell-equals-true`]: https://docs.astral.sh/ruff/rules/subprocess-without-shell-equals-true
-[`unused-noqa`]: https://docs.astral.sh/ruff/rules/unused-noqa
--- a/clippy.toml
+++ b/clippy.toml
@@ -24,20 +24,3 @@ ignore-interior-mutability = [
    # The expression is read-only.
    "ruff_python_ast::hashable::HashableExpr",
 ]
-
-disallowed-methods = [
-    { path = "std::env::var", reason = "Use System::env_var instead in ty crates" },
-    { path = "std::env::current_dir", reason = "Use System::current_directory instead in ty crates" },
-    { path = "std::fs::read_to_string", reason = "Use System::read_to_string instead in ty crates" },
-    { path = "std::fs::metadata", reason = "Use System::path_metadata instead in ty crates" },
-    { path = "std::fs::canonicalize", reason = "Use System::canonicalize_path instead in ty crates" },
-    { path = "dunce::canonicalize", reason = "Use System::canonicalize_path instead in ty crates" },
-    { path = "std::fs::read_dir", reason = "Use System::read_directory instead in ty crates" },
-    { path = "std::fs::write", reason = "Use WritableSystem::write_file instead in ty crates" },
-    { path = "std::fs::create_dir_all", reason = "Use WritableSystem::create_directory_all instead in ty crates" },
-    { path = "std::fs::File::create_new", reason = "Use WritableSystem::create_new_file instead in ty crates" },
-    # Path methods that have System trait equivalents
-    { path = "std::path::Path::exists", reason = "Use System::path_exists instead in ty crates" },
-    { path = "std::path::Path::is_dir", reason = "Use System::is_directory instead in ty crates" },
-    { path = "std::path::Path::is_file", reason = "Use System::is_file instead in ty crates" },
-]
--- a/crates/ruff/Cargo.toml
+++ b/crates/ruff/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.13.0"
+version = "0.12.8"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }
@@ -85,7 +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"), not(target_os = "android"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64", target_arch = "riscv64")))'.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]
--- a/crates/ruff/src/cache.rs
+++ b/crates/ruff/src/cache.rs
@@ -13,16 +13,25 @@ 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 tempfile::NamedTempFile;

 use ruff_cache::{CacheKey, CacheKeyHasher};
+use ruff_db::diagnostic::Diagnostic;
+use ruff_diagnostics::Fix;
+use ruff_linter::message::create_lint_diagnostic;
 use ruff_linter::package::PackageRoot;
 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::Settings;
 use ruff_workspace::resolver::Resolver;

+use crate::diagnostics::Diagnostics;
+
 /// [`Path`] that is relative to the package root in [`PackageCache`].
 pub(crate) type RelativePath = Path;
 /// [`PathBuf`] that is relative to the package root in [`PackageCache`].
@@ -289,8 +298,13 @@ impl Cache {
        });
    }

-    pub(crate) fn set_linted(&self, path: RelativePathBuf, key: &FileCacheKey, yes: bool) {
-        self.update(path, key, ChangeData::Linted(yes));
+    pub(crate) fn update_lint(
+        &self,
+        path: RelativePathBuf,
+        key: &FileCacheKey,
+        data: LintCacheData,
+    ) {
+        self.update(path, key, ChangeData::Lint(data));
    }

    pub(crate) fn set_formatted(&self, path: RelativePathBuf, key: &FileCacheKey) {
@@ -325,15 +339,42 @@ pub(crate) struct FileCache {
 }

 impl FileCache {
-    /// Return whether or not the file in the cache was linted and found to have no diagnostics.
-    pub(crate) fn linted(&self) -> bool {
-        self.data.linted
+    /// 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 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| {
+                        create_lint_diagnostic(
+                            &msg.body,
+                            msg.suggestion.as_ref(),
+                            msg.range,
+                            msg.fix.clone(),
+                            msg.parent,
+                            file.clone(),
+                            msg.noqa_offset,
+                            msg.rule,
+                        )
+                    })
+                    .collect()
+            };
+            let notebook_indexes = if let Some(notebook_index) = lint.notebook_index.as_ref() {
+                FxHashMap::from_iter([(path.to_string_lossy().to_string(), notebook_index.clone())])
+            } else {
+                FxHashMap::default()
+            };
+            Diagnostics::new(diagnostics, notebook_indexes)
+        })
    }
 }

 #[derive(Debug, Default, bincode::Decode, bincode::Encode)]
 struct FileCacheData {
-    linted: bool,
+    lint: Option<LintCacheData>,
    formatted: bool,
 }

@@ -369,6 +410,88 @@ pub(crate) fn init(path: &Path) -> Result<()> {
    Ok(())
 }

+#[derive(bincode::Decode, Debug, bincode::Encode, PartialEq)]
+pub(crate) struct LintCacheData {
+    /// Imports made.
+    // pub(super) imports: ImportMap,
+    /// Diagnostic messages.
+    pub(super) messages: Vec<CacheMessage>,
+    /// Source code of the file.
+    ///
+    /// # Notes
+    ///
+    /// 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_diagnostics(
+        diagnostics: &[Diagnostic],
+        notebook_index: Option<NotebookIndex>,
+    ) -> Self {
+        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 = diagnostics
+            .iter()
+            // 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.expect_ruff_source_file(),
+                    diagnostics.first().unwrap().expect_ruff_source_file(),
+                    "message uses a different source file"
+                );
+                CacheMessage {
+                    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();
+
+        Self {
+            messages,
+            source,
+            notebook_index,
+        }
+    }
+}
+
+/// On disk representation of a diagnostic message.
+#[derive(bincode::Decode, Debug, bincode::Encode, PartialEq)]
+pub(super) struct CacheMessage {
+    /// 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>,
+    #[bincode(with_serde)]
+    noqa_offset: Option<TextSize>,
+}
+
 pub(crate) trait PackageCaches {
    fn get(&self, package_root: &Path) -> Option<&Cache>;

@@ -456,15 +579,15 @@ struct Change {

 #[derive(Debug)]
 enum ChangeData {
-    Linted(bool),
+    Lint(LintCacheData),
    Formatted,
 }

 impl ChangeData {
    fn apply(self, data: &mut FileCacheData) {
        match self {
-            ChangeData::Linted(yes) => {
-                data.linted = yes;
+            ChangeData::Lint(new_lint) => {
+                data.lint = Some(new_lint);
            }
            ChangeData::Formatted => {
                data.formatted = true;
@@ -489,6 +612,7 @@ mod tests {
    use test_case::test_case;

    use ruff_cache::CACHE_DIR_NAME;
+    use ruff_db::diagnostic::Diagnostic;
    use ruff_linter::package::PackageRoot;
    use ruff_linter::settings::LinterSettings;
    use ruff_linter::settings::flags;
@@ -496,7 +620,7 @@ mod tests {
    use ruff_python_ast::{PySourceType, PythonVersion};
    use ruff_workspace::Settings;

-    use crate::cache::{self, ChangeData, FileCache, FileCacheData, FileCacheKey};
+    use crate::cache::{self, FileCache, FileCacheData, FileCacheKey};
    use crate::cache::{Cache, RelativePathBuf};
    use crate::commands::format::{FormatCommandError, FormatMode, FormatResult, format_path};
    use crate::diagnostics::{Diagnostics, lint_path};
@@ -523,7 +647,7 @@ mod tests {
        assert_eq!(cache.changes.lock().unwrap().len(), 0);

        let mut paths = Vec::new();
-        let mut paths_with_diagnostics = Vec::new();
+        let mut parse_errors = Vec::new();
        let mut expected_diagnostics = Diagnostics::default();
        for entry in fs::read_dir(&package_root).unwrap() {
            let entry = entry.unwrap();
@@ -547,7 +671,7 @@ mod tests {
                    continue;
                }

-                let mut diagnostics = lint_path(
+                let diagnostics = lint_path(
                    &path,
                    Some(PackageRoot::root(&package_root)),
                    &settings.linter,
@@ -557,15 +681,8 @@ mod tests {
                    UnsafeFixes::Enabled,
                )
                .unwrap();
-                if diagnostics.inner.is_empty() {
-                    // We won't load a notebook index from the cache for files without diagnostics,
-                    // so remove them from `expected_diagnostics` too. This allows us to keep the
-                    // full equality assertion below.
-                    diagnostics
-                        .notebook_indexes
-                        .remove(&path.to_string_lossy().to_string());
-                } else {
-                    paths_with_diagnostics.push(path.clone());
+                if diagnostics.inner.iter().any(Diagnostic::is_invalid_syntax) {
+                    parse_errors.push(path.clone());
                }
                paths.push(path);
                expected_diagnostics += diagnostics;
@@ -578,11 +695,11 @@ mod tests {
        let cache = Cache::open(package_root.clone(), &settings);
        assert_ne!(cache.package.files.len(), 0);

-        paths_with_diagnostics.sort();
+        parse_errors.sort();

        for path in &paths {
-            if paths_with_diagnostics.binary_search(path).is_ok() {
-                continue; // We don't cache files with diagnostics.
+            if parse_errors.binary_search(path).is_ok() {
+                continue; // We don't cache parsing errors.
            }

            let relative_path = cache.relative_path(path).unwrap();
@@ -616,7 +733,7 @@ mod tests {

    #[test]
    fn cache_adds_file_on_lint() {
-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\"])\n";
+        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";

        let test_cache = TestCache::new("cache_adds_file_on_lint");
        let cache = test_cache.open();
@@ -640,7 +757,7 @@ mod tests {

    #[test]
    fn cache_adds_files_on_lint() {
-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\"])\n";
+        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";

        let test_cache = TestCache::new("cache_adds_files_on_lint");
        let cache = test_cache.open();
@@ -665,40 +782,6 @@ mod tests {
        cache.persist().unwrap();
    }

-    #[test]
-    fn cache_does_not_add_file_on_lint_with_diagnostic() {
-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";
-
-        let test_cache = TestCache::new("cache_does_not_add_file_on_lint_with_diagnostic");
-        let cache = test_cache.open();
-        test_cache.write_source_file("source.py", source);
-        assert_eq!(cache.changes.lock().unwrap().len(), 0);
-
-        cache.persist().unwrap();
-        let cache = test_cache.open();
-
-        let results = test_cache
-            .lint_file_with_cache("source.py", &cache)
-            .expect("Failed to lint test file");
-        assert_eq!(results.inner.len(), 1, "Expected one F822 diagnostic");
-        assert_eq!(
-            cache.changes.lock().unwrap().len(),
-            1,
-            "Files with diagnostics still trigger change events"
-        );
-        assert!(
-            cache
-                .changes
-                .lock()
-                .unwrap()
-                .last()
-                .is_some_and(|change| matches!(change.new_data, ChangeData::Linted(false))),
-            "Files with diagnostics are marked as unlinted"
-        );
-
-        cache.persist().unwrap();
-    }
-
    #[test]
    fn cache_adds_files_on_format() {
        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";
@@ -729,7 +812,7 @@ mod tests {

    #[test]
    fn cache_invalidated_on_file_modified_time() {
-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\"])\n";
+        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";

        let test_cache = TestCache::new("cache_invalidated_on_file_modified_time");
        let cache = test_cache.open();
@@ -786,7 +869,7 @@ mod tests {
            file.set_permissions(perms)
        }

-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\"])\n";
+        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";

        let test_cache = TestCache::new("cache_invalidated_on_permission_change");
        let cache = test_cache.open();
@@ -839,7 +922,7 @@ mod tests {
        );

        // Now actually lint a file.
-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\"])\n";
+        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";
        test_cache.write_source_file("new.py", source);
        let new_path_key = RelativePathBuf::from("new.py");
        assert_eq!(cache.changes.lock().unwrap().len(), 0);
@@ -862,7 +945,7 @@ mod tests {

    #[test]
    fn format_updates_cache_entry() {
-        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\"])\n";
+        let source: &[u8] = b"a = 1\n\n__all__ = list([\"a\", \"b\"])\n";

        let test_cache = TestCache::new("format_updates_cache_entry");
        let cache = test_cache.open();
@@ -896,7 +979,7 @@ mod tests {
            panic!("Cache entry for `source.py` is missing.");
        };

-        assert!(file_cache.data.linted);
+        assert!(file_cache.data.lint.is_some());
        assert!(file_cache.data.formatted);
    }

@@ -946,7 +1029,7 @@ mod tests {
            panic!("Cache entry for `source.py` is missing.");
        };

-        assert!(!file_cache.data.linted);
+        assert_eq!(file_cache.data.lint, None);
        assert!(file_cache.data.formatted);
    }

--- a/crates/ruff/src/diagnostics.rs
+++ b/crates/ruff/src/diagnostics.rs
@@ -20,21 +20,15 @@ use ruff_linter::settings::types::UnsafeFixes;
 use ruff_linter::settings::{LinterSettings, flags};
 use ruff_linter::source_kind::{SourceError, SourceKind};
 use ruff_linter::{IOError, Violation, fs};
-use ruff_notebook::{NotebookError, NotebookIndex};
+use ruff_notebook::{Notebook, NotebookError, NotebookIndex};
 use ruff_python_ast::{PySourceType, SourceType, TomlSourceType};
 use ruff_source_file::SourceFileBuilder;
 use ruff_text_size::TextRange;
 use ruff_workspace::Settings;
 use rustc_hash::FxHashMap;

-use crate::cache::{Cache, FileCache, FileCacheKey};
+use crate::cache::{Cache, FileCacheKey, LintCacheData};

-/// A collection of [`Diagnostic`]s and additional information needed to render them.
-///
-/// Note that `notebook_indexes` may be empty if there are no diagnostics because the
-/// `NotebookIndex` isn't cached in this case. This isn't a problem for any current uses as of
-/// 2025-08-12, which are all related to diagnostic rendering, but could be surprising if used
-/// differently in the future.
 #[derive(Debug, Default, PartialEq)]
 pub(crate) struct Diagnostics {
    pub(crate) inner: Vec<Diagnostic>,
@@ -199,9 +193,19 @@ pub(crate) fn lint_path(
            let cache_key = FileCacheKey::from_path(path).context("Failed to create cache key")?;
            let cached_diagnostics = cache
                .get(relative_path, &cache_key)
-                .is_some_and(FileCache::linted);
-            if cached_diagnostics {
-                return Ok(Diagnostics::default());
+                .and_then(|entry| entry.to_diagnostics(path));
+            if let Some(diagnostics) = cached_diagnostics {
+                // `FixMode::Generate` and `FixMode::Diff` rely on side-effects (writing to disk,
+                // and writing the diff to stdout, respectively). If a file has diagnostics, we
+                // need to avoid reading from and writing to the cache in these modes.
+                if match fix_mode {
+                    flags::FixMode::Generate => true,
+                    flags::FixMode::Apply | flags::FixMode::Diff => {
+                        diagnostics.inner.is_empty() && diagnostics.fixed.is_empty()
+                    }
+                } {
+                    return Ok(diagnostics);
+                }
            }

            // Stash the file metadata for later so when we update the cache it reflects the prerun
@@ -318,21 +322,31 @@ pub(crate) fn lint_path(
            (result, transformed, fixed)
        };

+    let has_error = result.has_syntax_errors();
    let diagnostics = result.diagnostics;

    if let Some((cache, relative_path, key)) = caching {
-        // `FixMode::Apply` and `FixMode::Diff` rely on side-effects (writing to disk,
-        // and writing the diff to stdout, respectively). If a file has diagnostics
-        // with fixes, we need to avoid reading from and writing to the cache in these
-        // modes.
-        let use_fixes = match fix_mode {
-            flags::FixMode::Generate => true,
-            flags::FixMode::Apply | flags::FixMode::Diff => fixed.is_empty(),
-        };
-
-        // We don't cache files with diagnostics.
-        let linted = diagnostics.is_empty() && use_fixes;
-        cache.set_linted(relative_path.to_owned(), &key, linted);
+        // We don't cache parsing errors.
+        if !has_error {
+            // `FixMode::Apply` and `FixMode::Diff` rely on side-effects (writing to disk,
+            // and writing the diff to stdout, respectively). If a file has diagnostics, we
+            // need to avoid reading from and writing to the cache in these modes.
+            if match fix_mode {
+                flags::FixMode::Generate => true,
+                flags::FixMode::Apply | flags::FixMode::Diff => {
+                    diagnostics.is_empty() && fixed.is_empty()
+                }
+            } {
+                cache.update_lint(
+                    relative_path.to_owned(),
+                    &key,
+                    LintCacheData::from_diagnostics(
+                        &diagnostics,
+                        transformed.as_ipy_notebook().map(Notebook::index).cloned(),
+                    ),
+                );
+            }
+        }
    }

    let notebook_indexes = if let SourceKind::IpyNotebook(notebook) = transformed {
--- a/crates/ruff/src/main.rs
+++ b/crates/ruff/src/main.rs
@@ -19,8 +19,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
    any(
        target_arch = "x86_64",
        target_arch = "aarch64",
-        target_arch = "powerpc64",
-        target_arch = "riscv64"
+        target_arch = "powerpc64"
    )
 ))]
 #[global_allocator]
--- a/crates/ruff/src/printer.rs
+++ b/crates/ruff/src/printer.rs
@@ -15,7 +15,8 @@ use ruff_db::diagnostic::{
 use ruff_linter::fs::relativize_path;
 use ruff_linter::logging::LogLevel;
 use ruff_linter::message::{
-    Emitter, EmitterContext, GithubEmitter, GroupedEmitter, SarifEmitter, TextEmitter,
+    Emitter, EmitterContext, GithubEmitter, GitlabEmitter, GroupedEmitter, SarifEmitter,
+    TextEmitter,
 };
 use ruff_linter::notify_user;
 use ruff_linter::settings::flags::{self};
@@ -30,6 +31,8 @@ bitflags! {
        const SHOW_VIOLATIONS = 1 << 0;
        /// Whether to show a summary of the fixed violations when emitting diagnostics.
        const SHOW_FIX_SUMMARY = 1 << 1;
+        /// Whether to show a diff of each fixed violation when emitting diagnostics.
+        const SHOW_FIX_DIFF = 1 << 2;
    }
 }

@@ -258,9 +261,9 @@ impl Printer {
            OutputFormat::Concise | OutputFormat::Full => {
                TextEmitter::default()
                    .with_show_fix_status(show_fix_status(self.fix_mode, fixables.as_ref()))
-                    .with_show_fix_diff(self.format == OutputFormat::Full && preview)
+                    .with_show_fix_diff(self.flags.intersects(Flags::SHOW_FIX_DIFF))
                    .with_show_source(self.format == OutputFormat::Full)
-                    .with_fix_applicability(self.unsafe_fixes.required_applicability())
+                    .with_unsafe_fixes(self.unsafe_fixes)
                    .with_preview(preview)
                    .emit(writer, &diagnostics.inner, &context)?;

@@ -293,11 +296,7 @@ impl Printer {
                GithubEmitter.emit(writer, &diagnostics.inner, &context)?;
            }
            OutputFormat::Gitlab => {
-                let config = DisplayDiagnosticConfig::default()
-                    .format(DiagnosticFormat::Gitlab)
-                    .preview(preview);
-                let value = DisplayDiagnostics::new(&context, &config, &diagnostics.inner);
-                write!(writer, "{value}")?;
+                GitlabEmitter::default().emit(writer, &diagnostics.inner, &context)?;
            }
            OutputFormat::Pylint => {
                let config = DisplayDiagnosticConfig::default()
@@ -462,7 +461,7 @@ impl Printer {
            TextEmitter::default()
                .with_show_fix_status(show_fix_status(self.fix_mode, fixables.as_ref()))
                .with_show_source(preview)
-                .with_fix_applicability(self.unsafe_fixes.required_applicability())
+                .with_unsafe_fixes(self.unsafe_fixes)
                .emit(writer, &diagnostics.inner, &context)?;
        }
        writer.flush()?;
--- a/crates/ruff/tests/integration_test.rs
+++ b/crates/ruff/tests/integration_test.rs
@@ -115,13 +115,12 @@ fn stdin_error() {
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `os` imported but unused
-     --> -:1:8
+    -:1:8: F401 [*] `os` imported but unused
      |
    1 | import os
-      |        ^^
+      |        ^^ F401
      |
-    help: Remove unused import: `os`
+      = help: Remove unused import: `os`

    Found 1 error.
    [*] 1 fixable with the `--fix` option.
@@ -140,13 +139,12 @@ fn stdin_filename() {
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `os` imported but unused
-     --> F401.py:1:8
+    F401.py:1:8: F401 [*] `os` imported but unused
      |
    1 | import os
-      |        ^^
+      |        ^^ F401
      |
-    help: Remove unused import: `os`
+      = help: Remove unused import: `os`

    Found 1 error.
    [*] 1 fixable with the `--fix` option.
@@ -176,21 +174,19 @@ import bar   # unused import
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `bar` imported but unused
-     --> bar.py:2:8
+    bar.py:2:8: F401 [*] `bar` imported but unused
      |
    2 | import bar   # unused import
-      |        ^^^
+      |        ^^^ F401
      |
-    help: Remove unused import: `bar`
+      = help: Remove unused import: `bar`

-    F401 [*] `foo` imported but unused
-     --> foo.py:2:8
+    foo.py:2:8: F401 [*] `foo` imported but unused
      |
    2 | import foo   # unused import
-      |        ^^^
+      |        ^^^ F401
      |
-    help: Remove unused import: `foo`
+      = help: Remove unused import: `foo`

    Found 2 errors.
    [*] 2 fixable with the `--fix` option.
@@ -212,13 +208,12 @@ fn check_warn_stdin_filename_with_files() {
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `os` imported but unused
-     --> F401.py:1:8
+    F401.py:1:8: F401 [*] `os` imported but unused
      |
    1 | import os
-      |        ^^
+      |        ^^ F401
      |
-    help: Remove unused import: `os`
+      = help: Remove unused import: `os`

    Found 1 error.
    [*] 1 fixable with the `--fix` option.
@@ -239,13 +234,12 @@ fn stdin_source_type_py() {
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `os` imported but unused
-     --> TCH.py:1:8
+    TCH.py:1:8: F401 [*] `os` imported but unused
      |
    1 | import os
-      |        ^^
+      |        ^^ F401
      |
-    help: Remove unused import: `os`
+      = help: Remove unused import: `os`

    Found 1 error.
    [*] 1 fixable with the `--fix` option.
@@ -477,11 +471,10 @@ fn stdin_fix_jupyter() {
     "nbformat_minor": 5
    }
    ----- stderr -----
-    F821 Undefined name `x`
-     --> Jupyter.ipynb:cell 3:1:7
+    Jupyter.ipynb:cell 3:1:7: F821 Undefined name `x`
      |
    1 | print(x)
-      |       ^
+      |       ^ F821
      |

    Found 3 errors (2 fixed, 1 remaining).
@@ -576,21 +569,19 @@ fn stdin_override_parser_ipynb() {
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `os` imported but unused
-     --> Jupyter.py:cell 1:1:8
+    Jupyter.py:cell 1:1:8: F401 [*] `os` imported but unused
      |
    1 | import os
-      |        ^^
+      |        ^^ F401
      |
-    help: Remove unused import: `os`
+      = help: Remove unused import: `os`

-    F401 [*] `sys` imported but unused
-     --> Jupyter.py:cell 3:1:8
+    Jupyter.py:cell 3:1:8: F401 [*] `sys` imported but unused
      |
    1 | import sys
-      |        ^^^
+      |        ^^^ F401
      |
-    help: Remove unused import: `sys`
+      = help: Remove unused import: `sys`

    Found 2 errors.
    [*] 2 fixable with the `--fix` option.
@@ -614,13 +605,12 @@ fn stdin_override_parser_py() {
    success: false
    exit_code: 1
    ----- stdout -----
-    F401 [*] `os` imported but unused
-     --> F401.ipynb:1:8
+    F401.ipynb:1:8: F401 [*] `os` imported but unused
      |
    1 | import os
-      |        ^^
+      |        ^^ F401
      |
-    help: Remove unused import: `os`
+      = help: Remove unused import: `os`

    Found 1 error.
    [*] 1 fixable with the `--fix` option.
@@ -643,13 +633,12 @@ fn stdin_fix_when_not_fixable_should_still_print_contents() {
         print(sys.version)

    ----- stderr -----
-    F634 If test is a tuple, which is always `True`
-     --> -:3:4
+    -:3:4: F634 If test is a tuple, which is always `True`
      |
    1 | import sys
    2 |
    3 | if (1, 2):
-      |    ^^^^^^
+      |    ^^^^^^ F634
    4 |      print(sys.version)
      |

@@ -809,8 +798,7 @@ fn stdin_parse_error() {
    success: false
    exit_code: 1
    ----- stdout -----
-    invalid-syntax: Expected one or more symbol names after import
-     --> -:1:16
+    -:1:16: invalid-syntax: Expected one or more symbol names after import
      |
    1 | from foo import
      |                ^
@@ -830,16 +818,14 @@ fn stdin_multiple_parse_error() {
    success: false
    exit_code: 1
    ----- stdout -----
-    invalid-syntax: Expected one or more symbol names after import
-     --> -:1:16
+    -:1:16: invalid-syntax: Expected one or more symbol names after import
      |
    1 | from foo import
      |                ^
    2 | bar =
      |

-    invalid-syntax: Expected an expression
-     --> -:2:6
+    -:2:6: invalid-syntax: Expected an expression
      |
    1 | from foo import
    2 | bar =
@@ -861,8 +847,7 @@ fn parse_error_not_included() {
    success: false
    exit_code: 1
    ----- stdout -----
-    invalid-syntax: Expected an expression
-     --> -:1:6
+    -:1:6: invalid-syntax: Expected an expression
      |
    1 | foo =
      |      ^
@@ -882,11 +867,10 @@ fn full_output_preview() {
    success: false
    exit_code: 1
    ----- stdout -----
-    E741 Ambiguous variable name: `l`
-     --> -:1:1
+    -:1:1: E741 Ambiguous variable name: `l`
      |
    1 | l = 1
-      | ^
+      | ^ E741
      |

    Found 1 error.
@@ -911,11 +895,10 @@ preview = true
    success: false
    exit_code: 1
    ----- stdout -----
-    E741 Ambiguous variable name: `l`
-     --> -:1:1
+    -:1:1: E741 Ambiguous variable name: `l`
      |
    1 | l = 1
-      | ^
+      | ^ E741
      |

    Found 1 error.
@@ -933,11 +916,10 @@ fn full_output_format() {
    success: false
    exit_code: 1
    ----- stdout -----
-    E741 Ambiguous variable name: `l`
-     --> -:1:1
+    -:1:1: E741 Ambiguous variable name: `l`
      |
    1 | l = 1
-      | ^
+      | ^ E741
      |

    Found 1 error.
@@ -1424,9 +1406,7 @@ fn redirect_direct() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF950 Hey this is a test rule that was redirected from another.
-    --> -:1:1
-
+    -:1:1: RUF950 Hey this is a test rule that was redirected from another.
    Found 1 error.

    ----- stderr -----
@@ -1458,9 +1438,7 @@ fn redirect_prefix() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF950 Hey this is a test rule that was redirected from another.
-    --> -:1:1
-
+    -:1:1: RUF950 Hey this is a test rule that was redirected from another.
    Found 1 error.

    ----- stderr -----
@@ -1477,9 +1455,7 @@ fn deprecated_direct() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF920 Hey this is a deprecated test rule.
-    --> -:1:1
-
+    -:1:1: RUF920 Hey this is a deprecated test rule.
    Found 1 error.

    ----- stderr -----
@@ -1489,8 +1465,6 @@ fn deprecated_direct() {

 #[test]
 fn deprecated_multiple_direct() {
-    // Multiple deprecated rules selected by exact code should be included
-    // but a warning should be displayed
    let mut cmd = RuffCheck::default()
        .args(["--select", "RUF920", "--select", "RUF921"])
        .build();
@@ -1498,12 +1472,8 @@ fn deprecated_multiple_direct() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF920 Hey this is a deprecated test rule.
-    --> -:1:1
-
-    RUF921 Hey this is another deprecated test rule.
-    --> -:1:1
-
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
    Found 2 errors.

    ----- stderr -----
@@ -1518,10 +1488,12 @@ fn deprecated_indirect() {
    // since it is not a "direct" selection
    let mut cmd = RuffCheck::default().args(["--select", "RUF92"]).build();
    assert_cmd_snapshot!(cmd, @r"
-    success: true
-    exit_code: 0
+    success: false
+    exit_code: 1
    ----- stdout -----
-    All checks passed!
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
+    Found 2 errors.

    ----- stderr -----
    ");
@@ -1666,23 +1638,22 @@ fn check_input_from_argfile() -> Result<()> {
        (file_a_path.display().to_string().as_str(), "/path/to/a.py"),
    ]}, {
        assert_cmd_snapshot!(cmd
-            .pass_stdin(""), @r"
+            .pass_stdin(""), @r###"
        success: false
        exit_code: 1
        ----- stdout -----
-        F401 [*] `os` imported but unused
-         --> /path/to/a.py:1:8
+        /path/to/a.py:1:8: F401 [*] `os` imported but unused
          |
        1 | import os
-          |        ^^
+          |        ^^ F401
          |
-        help: Remove unused import: `os`
+          = help: Remove unused import: `os`

        Found 1 error.
        [*] 1 fixable with the `--fix` option.

        ----- stderr -----
-        ");
+        "###);
    });

    Ok(())
@@ -1698,12 +1669,8 @@ fn check_hints_hidden_unsafe_fixes() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF901 [*] Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 2 errors.
    [*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).

@@ -1720,9 +1687,7 @@ fn check_hints_hidden_unsafe_fixes_with_no_safe_fixes() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 1 error.
    No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).

@@ -1740,12 +1705,8 @@ fn check_no_hint_for_hidden_unsafe_fixes_when_disabled() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF901 [*] Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 2 errors.
    [*] 1 fixable with the --fix option.

@@ -1764,9 +1725,7 @@ fn check_no_hint_for_hidden_unsafe_fixes_with_no_safe_fixes_when_disabled() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 1 error.

    ----- stderr -----
@@ -1783,12 +1742,8 @@ fn check_shows_unsafe_fixes_with_opt_in() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF901 [*] Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 [*] Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 [*] Hey this is a stable test rule with an unsafe fix.
    Found 2 errors.
    [*] 2 fixable with the --fix option.

@@ -1809,9 +1764,7 @@ fn fix_applies_safe_fixes_by_default() {
    # fix from stable-test-rule-safe-fix

    ----- stderr -----
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 2 errors (1 fixed, 1 remaining).
    No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).
    ");
@@ -1848,9 +1801,7 @@ fn fix_does_not_apply_display_only_fixes() {
    ----- stdout -----
    def add_to_list(item, some_list=[]): ...
    ----- stderr -----
-    RUF903 Hey this is a stable test rule with a display only fix.
-    --> -:1:1
-
+    -:1:1: RUF903 Hey this is a stable test rule with a display only fix.
    Found 1 error.
    ");
 }
@@ -1868,9 +1819,7 @@ fn fix_does_not_apply_display_only_fixes_with_unsafe_fixes_enabled() {
    ----- stdout -----
    def add_to_list(item, some_list=[]): ...
    ----- stderr -----
-    RUF903 Hey this is a stable test rule with a display only fix.
-    --> -:1:1
-
+    -:1:1: RUF903 Hey this is a stable test rule with a display only fix.
    Found 1 error.
    ");
 }
@@ -1887,9 +1836,7 @@ fn fix_only_unsafe_fixes_available() {
    ----- stdout -----

    ----- stderr -----
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 1 error.
    No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).
    ");
@@ -2025,12 +1972,8 @@ extend-unsafe-fixes = ["RUF901"]
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF901 Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF901 Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 2 errors.
    No fixes available (2 hidden fixes can be enabled with the `--unsafe-fixes` option).

@@ -2061,12 +2004,8 @@ extend-safe-fixes = ["RUF902"]
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF901 [*] Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 [*] Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 [*] Hey this is a stable test rule with an unsafe fix.
    Found 2 errors.
    [*] 2 fixable with the `--fix` option.

@@ -2099,12 +2038,8 @@ extend-safe-fixes = ["RUF902"]
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF901 [*] Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
+    -:1:1: RUF901 [*] Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 Hey this is a stable test rule with an unsafe fix.
    Found 2 errors.
    [*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).

@@ -2139,22 +2074,14 @@ extend-safe-fixes = ["RUF9"]
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF900 Hey this is a stable test rule.
-    --> -:1:1
-
-    RUF901 Hey this is a stable test rule with a safe fix.
-    --> -:1:1
-
-    RUF902 [*] Hey this is a stable test rule with an unsafe fix.
-    --> -:1:1
-
-    RUF903 Hey this is a stable test rule with a display only fix.
-    --> -:1:1
-
-    RUF950 Hey this is a test rule that was redirected from another.
-    --> -:1:1
-
-    Found 5 errors.
+    -:1:1: RUF900 Hey this is a stable test rule.
+    -:1:1: RUF901 Hey this is a stable test rule with a safe fix.
+    -:1:1: RUF902 [*] Hey this is a stable test rule with an unsafe fix.
+    -:1:1: RUF903 Hey this is a stable test rule with a display only fix.
+    -:1:1: RUF920 Hey this is a deprecated test rule.
+    -:1:1: RUF921 Hey this is another deprecated test rule.
+    -:1:1: RUF950 Hey this is a test rule that was redirected from another.
+    Found 7 errors.
    [*] 1 fixable with the `--fix` option (1 hidden fix can be enabled with the `--unsafe-fixes` option).

    ----- stderr -----
@@ -2214,11 +2141,10 @@ def log(x, base) -> float:
    success: false
    exit_code: 1
    ----- stdout -----
-    D417 Missing argument description in the docstring for `log`: `base`
-     --> -:2:5
+    -:2:5: D417 Missing argument description in the docstring for `log`: `base`
      |
    2 | def log(x, base) -> float:
-      |     ^^^
+      |     ^^^ D417
    3 |     """Calculate natural log of a value
      |

@@ -2251,15 +2177,14 @@ select = ["RUF017"]
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF017 Avoid quadratic list summation
-     --> -:3:1
+    -:3:1: RUF017 Avoid quadratic list summation
      |
    1 | x = [1, 2, 3]
    2 | y = [4, 5, 6]
    3 | sum([x, y], [])
-      | ^^^^^^^^^^^^^^^
+      | ^^^^^^^^^^^^^^^ RUF017
      |
-    help: Replace with `functools.reduce`
+      = help: Replace with `functools.reduce`

    Found 1 error.
    No fixes available (1 hidden fix can be enabled with the `--unsafe-fixes` option).
@@ -2292,15 +2217,14 @@ unfixable = ["RUF"]
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF017 Avoid quadratic list summation
-     --> -:3:1
+    -:3:1: RUF017 Avoid quadratic list summation
      |
    1 | x = [1, 2, 3]
    2 | y = [4, 5, 6]
    3 | sum([x, y], [])
-      | ^^^^^^^^^^^^^^^
+      | ^^^^^^^^^^^^^^^ RUF017
      |
-    help: Replace with `functools.reduce`
+      = help: Replace with `functools.reduce`

    Found 1 error.

@@ -2322,11 +2246,10 @@ fn pyproject_toml_stdin_syntax_error() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF200 Failed to parse pyproject.toml: unclosed table, expected `]`
-     --> pyproject.toml:1:9
+    pyproject.toml:1:9: RUF200 Failed to parse pyproject.toml: unclosed table, expected `]`
      |
    1 | [project
-      |         ^
+      |         ^ RUF200
      |

    Found 1 error.
@@ -2348,12 +2271,11 @@ fn pyproject_toml_stdin_schema_error() {
    success: false
    exit_code: 1
    ----- stdout -----
-    RUF200 Failed to parse pyproject.toml: invalid type: integer `1`, expected a string
-     --> pyproject.toml:2:8
+    pyproject.toml:2:8: RUF200 Failed to parse pyproject.toml: invalid type: integer `1`, expected a string
      |
    1 | [project]
    2 | name = 1
-      |        ^
+      |        ^ RUF200
      |

    Found 1 error.
@@ -2441,12 +2363,11 @@ fn pyproject_toml_stdin_schema_error_fix() {
    [project]
    name = 1
    ----- stderr -----
-    RUF200 Failed to parse pyproject.toml: invalid type: integer `1`, expected a string
-     --> pyproject.toml:2:8
+    pyproject.toml:2:8: RUF200 Failed to parse pyproject.toml: invalid type: integer `1`, expected a string
      |
    1 | [project]
    2 | name = 1
-      |        ^
+      |        ^ RUF200
      |

    Found 1 error.
--- a/crates/ruff/tests/lint.rs
+++ b/crates/ruff/tests/lint.rs
@@ -5588,15 +5588,15 @@ fn cookiecutter_globbing() -> Result<()> {
                .args(STDIN_BASE_OPTIONS)
                .arg("--select=F811")
                .current_dir(tempdir.path()), @r"
-        success: false
-        exit_code: 1
-        ----- stdout -----
-        {{cookiecutter.repo_name}}/tests/maintest.py:3:8: F811 [*] Redefinition of unused `foo` from line 1: `foo` redefined here
-        Found 1 error.
-        [*] 1 fixable with the `--fix` option.
+			success: false
+			exit_code: 1
+			----- stdout -----
+			{{cookiecutter.repo_name}}/tests/maintest.py:3:8: F811 [*] Redefinition of unused `foo` from line 1
+			Found 1 error.
+			[*] 1 fixable with the `--fix` option.

-        ----- stderr -----
-        ");
+			----- stderr -----
+		");
    });

    Ok(())
@@ -5781,60 +5781,23 @@ match 42:  # invalid-syntax
 }

 #[test]
-fn up045_nested_optional_flatten_all() {
-    let contents = "\
-from typing import Optional
-nested_optional: Optional[Optional[Optional[str]]] = None
-";
-
+fn future_annotations_preview_warning() {
    assert_cmd_snapshot!(
        Command::new(get_cargo_bin(BIN_NAME))
            .args(STDIN_BASE_OPTIONS)
-            .args(["--select", "UP045", "--diff", "--target-version", "py312"])
+            .args(["--config", "lint.future-annotations = true"])
+            .args(["--select", "F"])
+            .arg("--no-preview")
            .arg("-")
-            .pass_stdin(contents),
+            .pass_stdin("1"),
        @r"
-    success: false
-    exit_code: 1
+    success: true
+    exit_code: 0
    ----- stdout -----
-    @@ -1,2 +1,2 @@
-     from typing import Optional
-    -nested_optional: Optional[Optional[Optional[str]]] = None
-    +nested_optional: str | None = None
-
-
-    ----- stderr -----
-    Would fix 1 error.
-    ",
-    );
-}
-
-#[test]
-fn show_fixes_in_full_output_with_preview_enabled() {
-    assert_cmd_snapshot!(
-        Command::new(get_cargo_bin(BIN_NAME))
-            .args(["check", "--no-cache", "--output-format", "full"])
-            .args(["--select", "F401"])
-            .arg("--preview")
-            .arg("-")
-            .pass_stdin("import math"),
-        @r"
-    success: false
-    exit_code: 1
-    ----- stdout -----
-    F401 [*] `math` imported but unused
-     --> -:1:8
-      |
-    1 | import math
-      |        ^^^^
-      |
-    help: Remove unused import: `math`
-      - import math
-
-    Found 1 error.
-    [*] 1 fixable with the `--fix` option.
+    All checks passed!

    ----- stderr -----
+    warning: The `lint.future-annotations` setting will have no effect because `preview` is disabled
    ",
    );
 }
--- a/crates/ruff/tests/snapshots/integration_test__rule_f401.snap
+++ b/crates/ruff/tests/snapshots/integration_test__rule_f401.snap
@@ -55,10 +55,6 @@ either a redundant alias or, if already present in the file, an `__all__` entry.
 to remove third-party and standard library imports -- the fix is unsafe because the module's
 interface changes.

-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 on how Ruff
-determines whether an import is first or third-party.
-
 ## Example

 ```python
@@ -87,6 +83,11 @@ else:
    print("numpy is not installed")
 ```

+## Preview
+When [preview](https://docs.astral.sh/ruff/preview/) is enabled,
+the criterion for determining whether an import is first-party
+is 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.
+
 ## Options
 - `lint.ignore-init-module-imports`
 - `lint.pyflakes.allowed-unused-imports`
--- a/crates/ruff/tests/snapshots/lint__output_format_full.snap
+++ b/crates/ruff/tests/snapshots/lint__output_format_full.snap
@@ -16,28 +16,25 @@ info:
 success: false
 exit_code: 1
 ----- stdout -----
-F401 [*] `os` imported but unused
- --> input.py:1:8
+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`
+  = help: Remove unused import: `os`

-F821 Undefined name `y`
- --> input.py:2:5
+input.py:2:5: F821 Undefined name `y`
  |
 1 | import os  # F401
 2 | x = y      # F821
-  |     ^
+  |     ^ F821
 3 | match 42:  # invalid-syntax
 4 |     case _: ...
  |

-invalid-syntax: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
- --> input.py:3:1
+input.py:3:1: invalid-syntax: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)
  |
 1 | import os  # F401
 2 | x = y      # F821
--- a/crates/ruff/tests/snapshots/lint__output_format_gitlab.snap
+++ b/crates/ruff/tests/snapshots/lint__output_format_gitlab.snap
@@ -19,60 +19,60 @@ exit_code: 1
 [
  {
    "check_name": "F401",
-    "description": "F401: `os` imported but unused",
-    "severity": "major",
+    "description": "`os` imported but unused",
    "fingerprint": "4dbad37161e65c72",
    "location": {
      "path": "input.py",
      "positions": {
        "begin": {
-          "line": 1,
-          "column": 8
+          "column": 8,
+          "line": 1
        },
        "end": {
-          "line": 1,
-          "column": 10
+          "column": 10,
+          "line": 1
        }
      }
-    }
+    },
+    "severity": "major"
  },
  {
    "check_name": "F821",
-    "description": "F821: Undefined name `y`",
-    "severity": "major",
+    "description": "Undefined name `y`",
    "fingerprint": "7af59862a085230",
    "location": {
      "path": "input.py",
      "positions": {
        "begin": {
-          "line": 2,
-          "column": 5
+          "column": 5,
+          "line": 2
        },
        "end": {
-          "line": 2,
-          "column": 6
+          "column": 6,
+          "line": 2
        }
      }
-    }
+    },
+    "severity": "major"
  },
  {
-    "check_name": "invalid-syntax",
-    "description": "invalid-syntax: Cannot use `match` statement on Python 3.9 (syntax was added in Python 3.10)",
-    "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": {
      "path": "input.py",
      "positions": {
        "begin": {
-          "line": 3,
-          "column": 1
+          "column": 1,
+          "line": 3
        },
        "end": {
-          "line": 3,
-          "column": 6
+          "column": 6,
+          "line": 3
        }
      }
-    }
+    },
+    "severity": "major"
  }
 ]
 ----- stderr -----
--- a/crates/ruff/tests/snapshots/lint__output_format_sarif.snap
+++ b/crates/ruff/tests/snapshots/lint__output_format_sarif.snap
@@ -95,7 +95,7 @@ exit_code: 1
          "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\nSee [this FAQ section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc)\nfor more details on how Ruff\ndetermines whether an import is first or third-party.\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## 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/spec/distributing.html#library-interface-public-and-private-symbols)\n"
+                "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/spec/distributing.html#library-interface-public-and-private-symbols)\n"
              },
              "help": {
                "text": "`{name}` imported but unused; consider using `importlib.util.find_spec` to test for availability"
--- a/crates/ruff_annotate_snippets/src/renderer/display_list.rs
+++ b/crates/ruff_annotate_snippets/src/renderer/display_list.rs
@@ -1201,16 +1201,11 @@ fn format_snippet<'m>(

    let is_file_level = snippet.annotations.iter().any(|ann| ann.is_file_level);
    if is_file_level {
-        // TODO(brent) enable this assertion again once we set `is_file_level` for individual rules.
-        // It's causing too many false positives currently when the default is to make any
-        // annotation with a default range file-level. See
-        // https://github.com/astral-sh/ruff/issues/19688.
-        //
-        // assert!(
-        //     snippet.source.is_empty(),
-        //     "Non-empty file-level snippet that won't be rendered: {:?}",
-        //     snippet.source
-        // );
+        assert!(
+            snippet.source.is_empty(),
+            "Non-empty file-level snippet that won't be rendered: {:?}",
+            snippet.source
+        );
        let header = format_header(origin, main_range, &[], is_first, snippet.cell_index);
        return DisplaySet {
            display_lines: header.map_or_else(Vec::new, |header| vec![header]),
@@ -1278,20 +1273,13 @@ fn format_header<'a>(
                ..
            } = item
            {
-                // At the very end of the `main_range`, report the location as the first character
-                // in the next line instead of falling back to the default location of `1:1`. This
-                // is another divergence from upstream.
-                let end_of_range = range.1 + max(*end_line as usize, 1);
-                if main_range >= range.0 && main_range < end_of_range {
+                if main_range >= range.0 && main_range < range.1 + max(*end_line as usize, 1) {
                    let char_column = text[0..(main_range - range.0).min(text.len())]
                        .chars()
                        .count();
                    col = char_column + 1;
                    line_offset = lineno.unwrap_or(1);
                    break;
-                } else if main_range == end_of_range {
-                    line_offset = lineno.map_or(1, |line| line + 1);
-                    break;
                }
            }
        }
--- a/crates/ruff_benchmark/Cargo.toml
+++ b/crates/ruff_benchmark/Cargo.toml
@@ -86,5 +86,5 @@ walltime = ["ruff_db/os", "ty_project", "divan"]
 [target.'cfg(target_os = "windows")'.dev-dependencies]
 mimalloc = { workspace = true }

-[target.'cfg(all(not(target_os = "windows"), not(target_os = "openbsd"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64", target_arch = "riscv64")))'.dev-dependencies]
+[target.'cfg(all(not(target_os = "windows"), not(target_os = "openbsd"), any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "powerpc64")))'.dev-dependencies]
 tikv-jemallocator = { workspace = true }
--- a/crates/ruff_benchmark/benches/formatter.rs
+++ b/crates/ruff_benchmark/benches/formatter.rs
@@ -21,8 +21,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
    any(
        target_arch = "x86_64",
        target_arch = "aarch64",
-        target_arch = "powerpc64",
-        target_arch = "riscv64"
+        target_arch = "powerpc64"
    )
 ))]
 #[global_allocator]
--- a/crates/ruff_benchmark/benches/lexer.rs
+++ b/crates/ruff_benchmark/benches/lexer.rs
@@ -18,8 +18,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
    any(
        target_arch = "x86_64",
        target_arch = "aarch64",
-        target_arch = "powerpc64",
-        target_arch = "riscv64"
+        target_arch = "powerpc64"
    )
 ))]
 #[global_allocator]
--- a/crates/ruff_benchmark/benches/linter.rs
+++ b/crates/ruff_benchmark/benches/linter.rs
@@ -26,8 +26,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
    any(
        target_arch = "x86_64",
        target_arch = "aarch64",
-        target_arch = "powerpc64",
-        target_arch = "riscv64"
+        target_arch = "powerpc64"
    )
 ))]
 #[global_allocator]
@@ -43,8 +42,7 @@ static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
    any(
        target_arch = "x86_64",
        target_arch = "aarch64",
-        target_arch = "powerpc64",
-        target_arch = "riscv64"
+        target_arch = "powerpc64"
    )
 ))]
 #[unsafe(export_name = "_rjem_malloc_conf")]
@@ -79,11 +77,8 @@ fn benchmark_linter(mut group: BenchmarkGroup, settings: &LinterSettings) {
                b.iter_batched(
                    || parsed.clone(),
                    |parsed| {
-                        // Assert that file contains no parse errors
-                        assert!(parsed.has_valid_syntax());
-
                        let path = case.path();
-                        lint_only(
+                        let result = lint_only(
                            &path,
                            None,
                            settings,
@@ -91,7 +86,10 @@ fn benchmark_linter(mut group: BenchmarkGroup, settings: &LinterSettings) {
                            &SourceKind::Python(case.code().to_string()),
                            PySourceType::from(path.as_path()),
                            ParseSource::Precomputed(parsed),
-                        )
+                        );
+
+                        // Assert that file contains no parse errors
+                        assert!(!result.has_syntax_errors());
                    },
                    criterion::BatchSize::SmallInput,
                );
--- a/crates/ruff_benchmark/benches/parser.rs
+++ b/crates/ruff_benchmark/benches/parser.rs
@@ -20,8 +20,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
    any(
        target_arch = "x86_64",
        target_arch = "aarch64",
-        target_arch = "powerpc64",
-        target_arch = "riscv64"
+        target_arch = "powerpc64"
    )
 ))]
 #[global_allocator]
--- a/crates/ruff_benchmark/benches/ty.rs
+++ b/crates/ruff_benchmark/benches/ty.rs
@@ -450,6 +450,9 @@ fn benchmark_complex_constrained_attributes_2(criterion: &mut Criterion) {
                    r#"
                    class C:
                        def f(self: "C"):
+                            self.a = ""
+                            self.b = ""
+
                            if isinstance(self.a, str):
                                return

@@ -463,56 +466,6 @@ fn benchmark_complex_constrained_attributes_2(criterion: &mut Criterion) {
                                return
                            if isinstance(self.b, str):
                                return
-                            if isinstance(self.b, str):
-                                return
-                            if isinstance(self.b, str):
-                                return
-
-                            self.a = ""
-                            self.b = ""
-                    "#,
-                )
-            },
-            |case| {
-                let Case { db, .. } = case;
-                let result = db.check();
-                assert_eq!(result.len(), 0);
-            },
-            BatchSize::SmallInput,
-        );
-    });
-}
-
-fn benchmark_complex_constrained_attributes_3(criterion: &mut Criterion) {
-    setup_rayon();
-
-    criterion.bench_function("ty_micro[complex_constrained_attributes_3]", |b| {
-        b.iter_batched_ref(
-            || {
-                // This is a regression test for https://github.com/astral-sh/ty/issues/758
-                setup_micro_case(
-                    r#"
-                    class GridOut:
-                        def __init__(self: "GridOut") -> None:
-                            self._buffer = b""
-
-                        def _read_size_or_line(self: "GridOut", size: int = -1):
-                            if size > self._position:
-                                size = self._position
-                                pass
-                            if size == 0:
-                                return bytes()
-
-                            while size > 0:
-                                if self._buffer:
-                                    buf = self._buffer
-                                    self._buffer = b""
-                                else:
-                                    buf = b""
-
-                                if len(buf) > size:
-                                    self._buffer = buf
-                                    self._position -= len(self._buffer)
                    "#,
                )
            },
@@ -715,7 +668,6 @@ criterion_group!(
    benchmark_tuple_implicit_instance_attributes,
    benchmark_complex_constrained_attributes_1,
    benchmark_complex_constrained_attributes_2,
-    benchmark_complex_constrained_attributes_3,
    benchmark_many_enum_members,
 );
 criterion_group!(project, anyio, attrs, hydra, datetype);
--- a/crates/ruff_benchmark/benches/ty_walltime.rs
+++ b/crates/ruff_benchmark/benches/ty_walltime.rs
@@ -218,24 +218,6 @@ static TANJUN: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::ne
    )
 });

-static STATIC_FRAME: std::sync::LazyLock<Benchmark<'static>> = std::sync::LazyLock::new(|| {
-    Benchmark::new(
-        RealWorldProject {
-            name: "static-frame",
-            repository: "https://github.com/static-frame/static-frame",
-            commit: "34962b41baca5e7f98f5a758d530bff02748a421",
-            paths: vec![SystemPath::new("static_frame")],
-            // N.B. `arraykit` is installed as a dependency during mypy_primer runs,
-            // but it takes much longer to be installed in a Codspeed run than it does in a mypy_primer run
-            // (seems to be built from source on the Codspeed CI runners for some reason).
-            dependencies: vec!["numpy"],
-            max_dep_date: "2025-08-09",
-            python_version: PythonVersion::PY311,
-        },
-        500,
-    )
-});
-
 #[track_caller]
 fn run_single_threaded(bencher: Bencher, benchmark: &Benchmark) {
    bencher
@@ -250,7 +232,7 @@ fn small(bencher: Bencher, benchmark: &Benchmark) {
    run_single_threaded(bencher, benchmark);
 }

-#[bench(args=[&*COLOUR_SCIENCE, &*PANDAS, &*STATIC_FRAME], sample_size=1, sample_count=3)]
+#[bench(args=[&*COLOUR_SCIENCE, &*PANDAS], sample_size=1, sample_count=3)]
 fn medium(bencher: Bencher, benchmark: &Benchmark) {
    run_single_threaded(bencher, benchmark);
 }
--- a/crates/ruff_db/Cargo.toml
+++ b/crates/ruff_db/Cargo.toml
@@ -34,14 +34,12 @@ glob = { workspace = true }
 ignore = { workspace = true, optional = true }
 matchit = { workspace = true }
 path-slash = { workspace = true }
-pathdiff = { workspace = true }
 quick-junit = { workspace = true, optional = true }
 rustc-hash = { workspace = true }
 salsa = { workspace = true }
 schemars = { workspace = true, optional = true }
 serde = { workspace = true, optional = true }
 serde_json = { workspace = true, optional = true }
-similar = { workspace = true }
 thiserror = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true, optional = true }
@@ -54,7 +52,7 @@ web-time = { version = "1.1.0" }
 etcetera = { workspace = true, optional = true }

 [dev-dependencies]
-insta = { workspace = true, features = ["filters"] }
+insta = { workspace = true }
 tempfile = { workspace = true }

 [features]
--- a/crates/ruff_db/src/diagnostic/mod.rs
+++ b/crates/ruff_db/src/diagnostic/mod.rs
@@ -254,11 +254,6 @@ impl Diagnostic {
            .find(|ann| ann.is_primary)
    }

-    /// Returns a mutable borrow of all annotations of this diagnostic.
-    pub fn annotations_mut(&mut self) -> impl Iterator<Item = &mut Annotation> {
-        Arc::make_mut(&mut self.inner).annotations.iter_mut()
-    }
-
    /// Returns the "primary" span of this diagnostic if one exists.
    ///
    /// When there are multiple primary spans, then the first one that was
@@ -315,21 +310,11 @@ impl Diagnostic {
        &self.inner.subs
    }

-    /// Returns a mutable borrow of the sub-diagnostics of this diagnostic.
-    pub fn sub_diagnostics_mut(&mut self) -> impl Iterator<Item = &mut SubDiagnostic> {
-        Arc::make_mut(&mut self.inner).subs.iter_mut()
-    }
-
    /// Returns the fix for this diagnostic if it exists.
    pub fn fix(&self) -> Option<&Fix> {
        self.inner.fix.as_ref()
    }

-    #[cfg(test)]
-    pub(crate) fn fix_mut(&mut self) -> Option<&mut Fix> {
-        Arc::make_mut(&mut self.inner).fix.as_mut()
-    }
-
    /// Set the fix for this diagnostic.
    pub fn set_fix(&mut self, fix: Fix) {
        debug_assert!(
@@ -349,13 +334,6 @@ impl Diagnostic {
        self.fix().is_some()
    }

-    /// Returns `true` if the diagnostic is [`fixable`](Diagnostic::fixable) and applies at the
-    /// configured applicability level.
-    pub fn has_applicable_fix(&self, config: &DisplayDiagnosticConfig) -> bool {
-        self.fix()
-            .is_some_and(|fix| fix.applies(config.fix_applicability))
-    }
-
    /// Returns the offset of the parent statement for this diagnostic if it exists.
    ///
    /// This is primarily used for checking noqa/secondary code suppressions.
@@ -454,26 +432,24 @@ impl Diagnostic {

    /// Computes the start source location for the message.
    ///
-    /// Returns None if the diagnostic has no primary span, if its file is not a `SourceFile`,
-    /// or if the span has no range.
-    pub fn ruff_start_location(&self) -> Option<LineColumn> {
-        Some(
-            self.ruff_source_file()?
-                .to_source_code()
-                .line_column(self.range()?.start()),
-        )
+    /// Panics if the diagnostic has no primary span, if its file is not a `SourceFile`, or if the
+    /// span has no range.
+    pub fn expect_ruff_start_location(&self) -> LineColumn {
+        self.expect_primary_span()
+            .expect_ruff_file()
+            .to_source_code()
+            .line_column(self.expect_range().start())
    }

    /// Computes the end source location for the message.
    ///
-    /// Returns None if the diagnostic has no primary span, if its file is not a `SourceFile`,
-    /// or if the span has no range.
-    pub fn ruff_end_location(&self) -> Option<LineColumn> {
-        Some(
-            self.ruff_source_file()?
-                .to_source_code()
-                .line_column(self.range()?.end()),
-        )
+    /// Panics if the diagnostic has no primary span, if its file is not a `SourceFile`, or if the
+    /// span has no range.
+    pub fn expect_ruff_end_location(&self) -> LineColumn {
+        self.expect_primary_span()
+            .expect_ruff_file()
+            .to_source_code()
+            .line_column(self.expect_range().end())
    }

    /// Returns the [`SourceFile`] which the message belongs to.
@@ -503,18 +479,13 @@ impl Diagnostic {

    /// Returns the ordering of diagnostics based on the start of their ranges, if they have any.
    ///
-    /// Panics if either diagnostic has no primary span, or if its file is not a `SourceFile`.
+    /// Panics if either diagnostic has no primary span, if the span has no range, or if its file is
+    /// not a `SourceFile`.
    pub fn ruff_start_ordering(&self, other: &Self) -> std::cmp::Ordering {
-        let a = (
-            self.expect_ruff_source_file(),
-            self.range().map(|r| r.start()),
-        );
-        let b = (
+        (self.expect_ruff_source_file(), self.expect_range().start()).cmp(&(
            other.expect_ruff_source_file(),
-            other.range().map(|r| r.start()),
-        );
-
-        a.cmp(&b)
+            other.expect_range().start(),
+        ))
    }
 }

@@ -650,11 +621,6 @@ impl SubDiagnostic {
        &self.inner.annotations
    }

-    /// Returns a mutable borrow of the annotations of this sub-diagnostic.
-    pub fn annotations_mut(&mut self) -> impl Iterator<Item = &mut Annotation> {
-        self.inner.annotations.iter_mut()
-    }
-
    /// Returns a shared borrow of the "primary" annotation of this diagnostic
    /// if one exists.
    ///
@@ -1313,10 +1279,6 @@ pub struct DisplayDiagnosticConfig {
    hide_severity: bool,
    /// Whether to show the availability of a fix in a diagnostic.
    show_fix_status: bool,
-    /// Whether to show the diff for an available fix after the main diagnostic.
-    ///
-    /// This currently only applies to `DiagnosticFormat::Full`.
-    show_fix_diff: bool,
    /// The lowest applicability that should be shown when reporting diagnostics.
    fix_applicability: Applicability,
 }
@@ -1364,14 +1326,6 @@ impl DisplayDiagnosticConfig {
        }
    }

-    /// Whether to show a diff for an available fix after the main diagnostic.
-    pub fn show_fix_diff(self, yes: bool) -> DisplayDiagnosticConfig {
-        DisplayDiagnosticConfig {
-            show_fix_diff: yes,
-            ..self
-        }
-    }
-
    /// Set the lowest fix applicability that should be shown.
    ///
    /// In other words, an applicability of `Safe` (the default) would suppress showing fixes or fix
@@ -1395,7 +1349,6 @@ impl Default for DisplayDiagnosticConfig {
            preview: false,
            hide_severity: false,
            show_fix_status: false,
-            show_fix_diff: false,
            fix_applicability: Applicability::Safe,
        }
    }
@@ -1449,11 +1402,6 @@ pub enum DiagnosticFormat {
    /// Print diagnostics in the format expected by JUnit.
    #[cfg(feature = "junit")]
    Junit,
-    /// Print diagnostics in the JSON format used by GitLab [Code Quality] reports.
-    ///
-    /// [Code Quality]: https://docs.gitlab.com/ci/testing/code_quality/#code-quality-report-format
-    #[cfg(feature = "serde")]
-    Gitlab,
 }

 /// A representation of the kinds of messages inside a diagnostic.
--- a/crates/ruff_db/src/diagnostic/render.rs
+++ b/crates/ruff_db/src/diagnostic/render.rs
@@ -2,15 +2,15 @@ use std::borrow::Cow;
 use std::collections::BTreeMap;
 use std::path::Path;

-use full::FullRenderer;
 use ruff_annotate_snippets::{
    Annotation as AnnotateAnnotation, Level as AnnotateLevel, Message as AnnotateMessage,
-    Snippet as AnnotateSnippet,
+    Renderer as AnnotateRenderer, Snippet as AnnotateSnippet,
 };
 use ruff_notebook::{Notebook, NotebookIndex};
 use ruff_source_file::{LineIndex, OneIndexed, SourceCode};
 use ruff_text_size::{TextLen, TextRange, TextSize};

+use crate::diagnostic::stylesheet::DiagnosticStylesheet;
 use crate::{
    Db,
    files::File,
@@ -31,8 +31,6 @@ mod azure;
 mod concise;
 mod full;
 #[cfg(feature = "serde")]
-mod gitlab;
-#[cfg(feature = "serde")]
 mod json;
 #[cfg(feature = "serde")]
 mod json_lines;
@@ -113,7 +111,37 @@ impl std::fmt::Display for DisplayDiagnostics<'_> {
                ConciseRenderer::new(self.resolver, self.config).render(f, self.diagnostics)?;
            }
            DiagnosticFormat::Full => {
-                FullRenderer::new(self.resolver, self.config).render(f, self.diagnostics)?;
+                let stylesheet = if self.config.color {
+                    DiagnosticStylesheet::styled()
+                } else {
+                    DiagnosticStylesheet::plain()
+                };
+
+                let mut renderer = if self.config.color {
+                    AnnotateRenderer::styled()
+                } else {
+                    AnnotateRenderer::plain()
+                }
+                .cut_indicator("…");
+
+                renderer = renderer
+                    .error(stylesheet.error)
+                    .warning(stylesheet.warning)
+                    .info(stylesheet.info)
+                    .note(stylesheet.note)
+                    .help(stylesheet.help)
+                    .line_no(stylesheet.line_no)
+                    .emphasis(stylesheet.emphasis)
+                    .none(stylesheet.none);
+
+                for diag in self.diagnostics {
+                    let resolved = Resolved::new(self.resolver, diag, self.config);
+                    let renderable = resolved.to_renderable(self.config.context);
+                    for diag in renderable.diagnostics.iter() {
+                        writeln!(f, "{}", renderer.render(diag.to_annotate()))?;
+                    }
+                    writeln!(f)?;
+                }
            }
            DiagnosticFormat::Azure => {
                AzureRenderer::new(self.resolver).render(f, self.diagnostics)?;
@@ -138,10 +166,6 @@ impl std::fmt::Display for DisplayDiagnostics<'_> {
            DiagnosticFormat::Junit => {
                junit::JunitRenderer::new(self.resolver).render(f, self.diagnostics)?;
            }
-            #[cfg(feature = "serde")]
-            DiagnosticFormat::Gitlab => {
-                gitlab::GitlabRenderer::new(self.resolver).render(f, self.diagnostics)?;
-            }
        }

        Ok(())
@@ -218,12 +242,7 @@ impl<'a> ResolvedDiagnostic<'a> {
            .annotations
            .iter()
            .filter_map(|ann| {
-                let path = ann
-                    .span
-                    .file
-                    .relative_path(resolver)
-                    .to_str()
-                    .unwrap_or_else(|| ann.span.file.path(resolver));
+                let path = ann.span.file.path(resolver);
                let diagnostic_source = ann.span.file.diagnostic_source(resolver);
                ResolvedAnnotation::new(path, &diagnostic_source, ann, resolver)
            })
@@ -254,7 +273,9 @@ impl<'a> ResolvedDiagnostic<'a> {
            id,
            message: diag.inner.message.as_str().to_string(),
            annotations,
-            is_fixable: diag.has_applicable_fix(config),
+            is_fixable: diag
+                .fix()
+                .is_some_and(|fix| fix.applies(config.fix_applicability)),
        }
    }

@@ -268,12 +289,7 @@ impl<'a> ResolvedDiagnostic<'a> {
            .annotations
            .iter()
            .filter_map(|ann| {
-                let path = ann
-                    .span
-                    .file
-                    .relative_path(resolver)
-                    .to_str()
-                    .unwrap_or_else(|| ann.span.file.path(resolver));
+                let path = ann.span.file.path(resolver);
                let diagnostic_source = ann.span.file.diagnostic_source(resolver);
                ResolvedAnnotation::new(path, &diagnostic_source, ann, resolver)
            })
@@ -639,22 +655,6 @@ impl<'r> RenderableSnippet<'r> {
            .as_source_code()
            .slice(TextRange::new(snippet_start, snippet_end));

-        // Strip the BOM from the beginning of the snippet, if present. Doing this here saves us the
-        // trouble of updating the annotation ranges in `replace_unprintable`, and also allows us to
-        // check that the BOM is at the very beginning of the file, not just the beginning of the
-        // snippet.
-        const BOM: char = '\u{feff}';
-        let bom_len = BOM.text_len();
-        let (snippet, snippet_start) =
-            if snippet_start == TextSize::ZERO && snippet.starts_with(BOM) {
-                (
-                    &snippet[bom_len.to_usize()..],
-                    snippet_start + TextSize::new(bom_len.to_u32()),
-                )
-            } else {
-                (snippet, snippet_start)
-            };
-
        let annotations = anns
            .iter()
            .map(|ann| RenderableAnnotation::new(snippet_start, ann))
@@ -719,11 +719,7 @@ impl<'r> RenderableAnnotation<'r> {
    /// lifetime parameter here refers to the lifetime of the resolver that
    /// created the given `ResolvedAnnotation`.
    fn new(snippet_start: TextSize, ann: &'_ ResolvedAnnotation<'r>) -> RenderableAnnotation<'r> {
-        // This should only ever saturate if a BOM is present _and_ the annotation range points
-        // before the BOM (i.e. at offset 0). In Ruff this typically results from the use of
-        // `TextRange::default()` for a diagnostic range instead of a range relative to file
-        // contents.
-        let range = ann.range.checked_sub(snippet_start).unwrap_or(ann.range);
+        let range = ann.range - snippet_start;
        RenderableAnnotation {
            range,
            message: ann.message,
@@ -1004,12 +1000,7 @@ fn replace_unprintable<'r>(
    let mut last_end = 0;
    let mut result = String::new();
    for (index, c) in source.char_indices() {
-        // normalize `\r` line endings but don't double `\r\n`
-        if c == '\r' && !source[index + 1..].starts_with("\n") {
-            result.push_str(&source[last_end..index]);
-            result.push('\n');
-            last_end = index + 1;
-        } else if let Some(printable) = unprintable_replacement(c) {
+        if let Some(printable) = unprintable_replacement(c) {
            result.push_str(&source[last_end..index]);

            let len = printable.text_len().to_u32();
@@ -2626,13 +2617,6 @@ watermelon
            self.config = config;
        }

-        /// Show a diff for the fix when rendering.
-        pub(super) fn show_fix_diff(&mut self, yes: bool) {
-            let mut config = std::mem::take(&mut self.config);
-            config = config.show_fix_diff(yes);
-            self.config = config;
-        }
-
        /// The lowest fix applicability to show when rendering.
        pub(super) fn fix_applicability(&mut self, applicability: Applicability) {
            let mut config = std::mem::take(&mut self.config);
--- a/crates/ruff_db/src/diagnostic/render/concise.rs
+++ b/crates/ruff_db/src/diagnostic/render/concise.rs
@@ -77,9 +77,11 @@ impl<'a> ConciseRenderer<'a> {
                    )?;
                }
                if self.config.show_fix_status {
-                    // Do not display an indicator for inapplicable fixes
-                    if diag.has_applicable_fix(self.config) {
-                        write!(f, "[{fix}] ", fix = fmt_styled("*", stylesheet.separator))?;
+                    if let Some(fix) = diag.fix() {
+                        // Do not display an indicator for inapplicable fixes
+                        if fix.applies(self.config.fix_applicability) {
+                            write!(f, "[{fix}] ", fix = fmt_styled("*", stylesheet.separator))?;
+                        }
                    }
                }
            } else {
--- a/crates/ruff_db/src/diagnostic/render/full.rs
+++ b/crates/ruff_db/src/diagnostic/render/full.rs
@@ -1,298 +1,7 @@
-use std::borrow::Cow;
-use std::num::NonZeroUsize;
-
-use similar::{ChangeTag, TextDiff};
-
-use ruff_annotate_snippets::Renderer as AnnotateRenderer;
-use ruff_diagnostics::{Applicability, Fix};
-use ruff_notebook::NotebookIndex;
-use ruff_source_file::OneIndexed;
-use ruff_text_size::{Ranged, TextLen, TextRange, TextSize};
-
-use crate::diagnostic::render::{FileResolver, Resolved};
-use crate::diagnostic::stylesheet::{DiagnosticStylesheet, fmt_styled};
-use crate::diagnostic::{Diagnostic, DiagnosticSource, DisplayDiagnosticConfig};
-
-pub(super) struct FullRenderer<'a> {
-    resolver: &'a dyn FileResolver,
-    config: &'a DisplayDiagnosticConfig,
-}
-
-impl<'a> FullRenderer<'a> {
-    pub(super) fn new(resolver: &'a dyn FileResolver, config: &'a DisplayDiagnosticConfig) -> Self {
-        Self { resolver, config }
-    }
-
-    pub(super) fn render(
-        &self,
-        f: &mut std::fmt::Formatter,
-        diagnostics: &[Diagnostic],
-    ) -> std::fmt::Result {
-        let stylesheet = if self.config.color {
-            DiagnosticStylesheet::styled()
-        } else {
-            DiagnosticStylesheet::plain()
-        };
-
-        let mut renderer = if self.config.color {
-            AnnotateRenderer::styled()
-        } else {
-            AnnotateRenderer::plain()
-        }
-        .cut_indicator("…");
-
-        renderer = renderer
-            .error(stylesheet.error)
-            .warning(stylesheet.warning)
-            .info(stylesheet.info)
-            .note(stylesheet.note)
-            .help(stylesheet.help)
-            .line_no(stylesheet.line_no)
-            .emphasis(stylesheet.emphasis)
-            .none(stylesheet.none);
-
-        for diag in diagnostics {
-            let resolved = Resolved::new(self.resolver, diag, self.config);
-            let renderable = resolved.to_renderable(self.config.context);
-            for diag in renderable.diagnostics.iter() {
-                writeln!(f, "{}", renderer.render(diag.to_annotate()))?;
-            }
-
-            if self.config.show_fix_diff && diag.has_applicable_fix(self.config) {
-                if let Some(diff) = Diff::from_diagnostic(diag, &stylesheet, self.resolver) {
-                    write!(f, "{diff}")?;
-                }
-            }
-
-            writeln!(f)?;
-        }
-
-        Ok(())
-    }
-}
-
-/// Renders a diff that shows the code fixes.
-///
-/// The implementation isn't fully fledged out and only used by tests. Before using in production, try
-/// * Improve layout
-/// * Replace tabs with spaces for a consistent experience across terminals
-/// * Replace zero-width whitespaces
-/// * Print a simpler diff if only a single line has changed
-/// * Compute the diff from the `Edit` because diff calculation is expensive.
-struct Diff<'a> {
-    fix: &'a Fix,
-    diagnostic_source: DiagnosticSource,
-    notebook_index: Option<NotebookIndex>,
-    stylesheet: &'a DiagnosticStylesheet,
-}
-
-impl<'a> Diff<'a> {
-    fn from_diagnostic(
-        diagnostic: &'a Diagnostic,
-        stylesheet: &'a DiagnosticStylesheet,
-        resolver: &'a dyn FileResolver,
-    ) -> Option<Diff<'a>> {
-        let file = &diagnostic.primary_span_ref()?.file;
-        Some(Diff {
-            fix: diagnostic.fix()?,
-            diagnostic_source: file.diagnostic_source(resolver),
-            notebook_index: resolver.notebook_index(file),
-            stylesheet,
-        })
-    }
-}
-
-impl std::fmt::Display for Diff<'_> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        let source_code = self.diagnostic_source.as_source_code();
-        let source_text = source_code.text();
-
-        // Partition the source code into end offsets for each cell. If `self.notebook_index` is
-        // `None`, indicating a regular script file, all the lines will be in one "cell" under the
-        // `None` key.
-        let cells = if let Some(notebook_index) = &self.notebook_index {
-            let mut last_cell = OneIndexed::MIN;
-            let mut cells: Vec<(Option<OneIndexed>, TextSize)> = Vec::new();
-            for (row, cell) in notebook_index.iter() {
-                if cell != last_cell {
-                    let offset = source_code.line_start(row);
-                    cells.push((Some(last_cell), offset));
-                    last_cell = cell;
-                }
-            }
-            cells.push((Some(last_cell), source_text.text_len()));
-            cells
-        } else {
-            vec![(None, source_text.text_len())]
-        };
-
-        let mut last_end = TextSize::ZERO;
-        for (cell, offset) in cells {
-            let range = TextRange::new(last_end, offset);
-            last_end = offset;
-            let input = source_code.slice(range);
-
-            let mut output = String::with_capacity(input.len());
-            let mut last_end = range.start();
-
-            let mut applied = 0;
-            for edit in self.fix.edits() {
-                if range.contains_range(edit.range()) {
-                    output.push_str(source_code.slice(TextRange::new(last_end, edit.start())));
-                    output.push_str(edit.content().unwrap_or_default());
-                    last_end = edit.end();
-                    applied += 1;
-                }
-            }
-
-            // No edits were applied, so there's no need to diff.
-            if applied == 0 {
-                continue;
-            }
-
-            output.push_str(&source_text[usize::from(last_end)..usize::from(range.end())]);
-
-            let diff = TextDiff::from_lines(input, &output);
-
-            let grouped_ops = diff.grouped_ops(3);
-
-            // Find the new line number with the largest number of digits to align all of the line
-            // number separators.
-            let last_op = grouped_ops.last().and_then(|group| group.last());
-            let largest_new = last_op.map(|op| op.new_range().end).unwrap_or_default();
-
-            let digit_with = OneIndexed::new(largest_new).unwrap_or_default().digits();
-
-            if let Some(cell) = cell {
-                // Room for 1 digit, 1 space, 1 `|`, and 1 more following space. This centers the
-                // three colons on the pipe.
-                writeln!(f, "{:>1$} cell {cell}", ":::", digit_with.get() + 3)?;
-            }
-
-            for (idx, group) in grouped_ops.iter().enumerate() {
-                if idx > 0 {
-                    writeln!(f, "{:-^1$}", "-", 80)?;
-                }
-                for op in group {
-                    for change in diff.iter_inline_changes(op) {
-                        let (sign, style, line_no_style, index) = match change.tag() {
-                            ChangeTag::Delete => (
-                                "-",
-                                self.stylesheet.deletion,
-                                self.stylesheet.deletion_line_no,
-                                None,
-                            ),
-                            ChangeTag::Insert => (
-                                "+",
-                                self.stylesheet.insertion,
-                                self.stylesheet.insertion_line_no,
-                                change.new_index(),
-                            ),
-                            ChangeTag::Equal => (
-                                "|",
-                                self.stylesheet.none,
-                                self.stylesheet.line_no,
-                                change.new_index(),
-                            ),
-                        };
-
-                        let line = Line {
-                            index: index.map(OneIndexed::from_zero_indexed),
-                            width: digit_with,
-                        };
-
-                        write!(
-                            f,
-                            "{line} {sign} ",
-                            line = fmt_styled(line, self.stylesheet.line_no),
-                            sign = fmt_styled(sign, line_no_style),
-                        )?;
-
-                        for (emphasized, value) in change.iter_strings_lossy() {
-                            let value = show_nonprinting(&value);
-                            let styled = fmt_styled(value, style);
-                            if emphasized {
-                                write!(f, "{}", fmt_styled(styled, self.stylesheet.emphasis))?;
-                            } else {
-                                write!(f, "{styled}")?;
-                            }
-                        }
-                        if change.missing_newline() {
-                            writeln!(f)?;
-                        }
-                    }
-                }
-            }
-        }
-
-        match self.fix.applicability() {
-            Applicability::Safe => {}
-            Applicability::Unsafe => {
-                writeln!(
-                    f,
-                    "{note}: {msg}",
-                    note = fmt_styled("note", self.stylesheet.warning),
-                    msg = fmt_styled(
-                        "This is an unsafe fix and may change runtime behavior",
-                        self.stylesheet.emphasis
-                    )
-                )?;
-            }
-            Applicability::DisplayOnly => {
-                // Note that this is still only used in tests. There's no `--display-only-fixes`
-                // analog to `--unsafe-fixes` for users to activate this or see the styling.
-                writeln!(
-                    f,
-                    "{note}: {msg}",
-                    note = fmt_styled("note", self.stylesheet.error),
-                    msg = fmt_styled(
-                        "This is a display-only fix and is likely to be incorrect",
-                        self.stylesheet.emphasis
-                    )
-                )?;
-            }
-        }
-
-        Ok(())
-    }
-}
-
-struct Line {
-    index: Option<OneIndexed>,
-    width: NonZeroUsize,
-}
-
-impl std::fmt::Display for Line {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        match self.index {
-            None => {
-                for _ in 0..self.width.get() {
-                    f.write_str(" ")?;
-                }
-                Ok(())
-            }
-            Some(idx) => write!(f, "{:<width$}", idx, width = self.width.get()),
-        }
-    }
-}
-
-fn show_nonprinting(s: &str) -> Cow<'_, str> {
-    if s.find(['\x07', '\x08', '\x1b', '\x7f']).is_some() {
-        Cow::Owned(
-            s.replace('\x07', "␇")
-                .replace('\x08', "␈")
-                .replace('\x1b', "␛")
-                .replace('\x7f', "␡"),
-        )
-    } else {
-        Cow::Borrowed(s)
-    }
-}
-
 #[cfg(test)]
 mod tests {
-    use ruff_diagnostics::{Applicability, Edit, Fix};
-    use ruff_text_size::{TextLen, TextRange, TextSize};
+    use ruff_diagnostics::Applicability;
+    use ruff_text_size::TextRange;

    use crate::diagnostic::{
        Annotation, DiagnosticFormat, Severity,
@@ -477,7 +186,7 @@ print()
    /// For example, without the fix, we get diagnostics like this:
    ///
    /// ```
-    /// error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1a" instead
+    /// error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
    ///  --> example.py:1:25
    ///   |
    /// 1 | nested_fstrings = f'␈{f'{f'␛'}'}'
@@ -497,13 +206,13 @@ print()
            .builder(
                "invalid-character-sub",
                Severity::Error,
-                r#"Invalid unescaped character SUB, use "\x1a" instead"#,
+                r#"Invalid unescaped character SUB, use "\x1A" instead"#,
            )
            .primary("example.py", "1:24", "1:24", "")
            .build();

        insta::assert_snapshot!(env.render(&diagnostic), @r#"
-        error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1a" instead
+        error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
         --> example.py:1:25
          |
        1 | nested_fstrings = f'␈{f'{f'␛'}'}'
@@ -522,13 +231,13 @@ print()
            .builder(
                "invalid-character-sub",
                Severity::Error,
-                r#"Invalid unescaped character SUB, use "\x1a" instead"#,
+                r#"Invalid unescaped character SUB, use "\x1A" instead"#,
            )
            .primary("example.py", "1:1", "1:1", "")
            .build();

        insta::assert_snapshot!(env.render(&diagnostic), @r#"
-        error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1a" instead
+        error[invalid-character-sub]: Invalid unescaped character SUB, use "\x1A" instead
         --> example.py:1:2
          |
        1 | ␈␛
@@ -691,275 +400,4 @@ print()
        help: Remove `print` statement
        ");
    }
-
-    /// Test that we remap notebook cell line numbers in the diff as well as the main diagnostic.
-    #[test]
-    fn notebook_output_with_diff() {
-        let (mut env, diagnostics) = create_notebook_diagnostics(DiagnosticFormat::Full);
-        env.show_fix_diff(true);
-        env.fix_applicability(Applicability::DisplayOnly);
-
-        insta::assert_snapshot!(env.render_diagnostics(&diagnostics), @r"
-        error[unused-import][*]: `os` imported but unused
-         --> notebook.ipynb:cell 1:2:8
-          |
-        1 | # cell 1
-        2 | import os
-          |        ^^
-          |
-        help: Remove unused import: `os`
-         ::: cell 1
-        1 | # cell 1
-          - import os
-
-        error[unused-import][*]: `math` imported but unused
-         --> notebook.ipynb:cell 2:2:8
-          |
-        1 | # cell 2
-        2 | import math
-          |        ^^^^
-        3 |
-        4 | print('hello world')
-          |
-        help: Remove unused import: `math`
-         ::: cell 2
-        1 | # cell 2
-          - import math
-        2 | 
-        3 | print('hello world')
-
-        error[unused-variable][*]: Local variable `x` is assigned to but never used
-         --> notebook.ipynb:cell 3:4:5
-          |
-        2 | def foo():
-        3 |     print()
-        4 |     x = 1
-          |     ^
-          |
-        help: Remove assignment to unused variable `x`
-         ::: cell 3
-        1 | # cell 3
-        2 | def foo():
-        3 |     print()
-          -     x = 1
-        4 | 
-        note: This is an unsafe fix and may change runtime behavior
-        ");
-    }
-
-    #[test]
-    fn notebook_output_with_diff_spanning_cells() {
-        let (mut env, mut diagnostics) = create_notebook_diagnostics(DiagnosticFormat::Full);
-        env.show_fix_diff(true);
-        env.fix_applicability(Applicability::DisplayOnly);
-
-        // Move all of the edits from the later diagnostics to the first diagnostic to simulate a
-        // single diagnostic with edits in different cells.
-        let mut diagnostic = diagnostics.swap_remove(0);
-        let fix = diagnostic.fix_mut().unwrap();
-        let mut edits = fix.edits().to_vec();
-        for diag in diagnostics {
-            edits.extend_from_slice(diag.fix().unwrap().edits());
-        }
-        *fix = Fix::unsafe_edits(edits.remove(0), edits);
-
-        insta::assert_snapshot!(env.render(&diagnostic), @r"
-        error[unused-import][*]: `os` imported but unused
-         --> notebook.ipynb:cell 1:2:8
-          |
-        1 | # cell 1
-        2 | import os
-          |        ^^
-          |
-        help: Remove unused import: `os`
-         ::: cell 1
-        1 | # cell 1
-          - import os
-         ::: cell 2
-        1 | # cell 2
-          - import math
-        2 | 
-        3 | print('hello world')
-         ::: cell 3
-        1 | # cell 3
-        2 | def foo():
-        3 |     print()
-          -     x = 1
-        4 | 
-        note: This is an unsafe fix and may change runtime behavior
-        ");
-    }
-
-    /// Carriage return (`\r`) is a valid line-ending in Python, so we should normalize this to a
-    /// line feed (`\n`) for rendering. Otherwise we report a single long line for this case.
-    #[test]
-    fn normalize_carriage_return() {
-        let mut env = TestEnvironment::new();
-        env.add(
-            "example.py",
-            "# Keep parenthesis around preserved CR\rint(-\r    1)\rint(+\r    1)",
-        );
-        env.format(DiagnosticFormat::Full);
-
-        let mut diagnostic = env.err().build();
-        let span = env
-            .path("example.py")
-            .with_range(TextRange::at(TextSize::new(39), TextSize::new(0)));
-        let annotation = Annotation::primary(span);
-        diagnostic.annotate(annotation);
-
-        insta::assert_snapshot!(env.render(&diagnostic), @r"
-        error[test-diagnostic]: main diagnostic message
-         --> example.py:2:1
-          |
-        1 | # Keep parenthesis around preserved CR
-        2 | int(-
-          | ^
-        3 |     1)
-        4 | int(+
-          |
-        ");
-    }
-
-    /// Without stripping the BOM, we report an error in column 2, unlike Ruff.
-    #[test]
-    fn strip_bom() {
-        let mut env = TestEnvironment::new();
-        env.add("example.py", "\u{feff}import foo");
-        env.format(DiagnosticFormat::Full);
-
-        let mut diagnostic = env.err().build();
-        let span = env
-            .path("example.py")
-            .with_range(TextRange::at(TextSize::new(3), TextSize::new(0)));
-        let annotation = Annotation::primary(span);
-        diagnostic.annotate(annotation);
-
-        insta::assert_snapshot!(env.render(&diagnostic), @r"
-        error[test-diagnostic]: main diagnostic message
-         --> example.py:1:1
-          |
-        1 | import foo
-          | ^
-          |
-        ");
-    }
-
-    #[test]
-    fn bom_with_default_range() {
-        let mut env = TestEnvironment::new();
-        env.add("example.py", "\u{feff}import foo");
-        env.format(DiagnosticFormat::Full);
-
-        let mut diagnostic = env.err().build();
-        let span = env.path("example.py").with_range(TextRange::default());
-        let annotation = Annotation::primary(span);
-        diagnostic.annotate(annotation);
-
-        insta::assert_snapshot!(env.render(&diagnostic), @r"
-        error[test-diagnostic]: main diagnostic message
-         --> example.py:1:1
-          |
-        1 | import foo
-          | ^
-          |
-        ");
-    }
-
-    /// We previously rendered this correctly, but the header was falling back to 1:1 for ranges
-    /// pointing to the final newline in a file. Like Ruff, we now use the offset of the first
-    /// character in the nonexistent final line in the header.
-    #[test]
-    fn end_of_file() {
-        let mut env = TestEnvironment::new();
-        let contents = "unexpected eof\n";
-        env.add("example.py", contents);
-        env.format(DiagnosticFormat::Full);
-
-        let mut diagnostic = env.err().build();
-        let span = env
-            .path("example.py")
-            .with_range(TextRange::at(contents.text_len(), TextSize::new(0)));
-        let annotation = Annotation::primary(span);
-        diagnostic.annotate(annotation);
-
-        insta::assert_snapshot!(env.render(&diagnostic), @r"
-        error[test-diagnostic]: main diagnostic message
-         --> example.py:2:1
-          |
-        1 | unexpected eof
-          |               ^
-          |
-        ");
-    }
-
-    /// Test that we handle the width calculation for the line number correctly even for context
-    /// lines at the end of a diff. For example, we want it to render like this:
-    ///
-    /// ```
-    /// 8  |
-    /// 9  |
-    /// 10 |
-    /// ```
-    ///
-    /// and not like this:
-    ///
-    /// ```
-    /// 8 |
-    /// 9 |
-    /// 10 |
-    /// ```
-    #[test]
-    fn longer_line_number_end_of_context() {
-        let mut env = TestEnvironment::new();
-        let contents = "\
-line 1
-line 2
-line 3
-line 4
-line 5
-line 6
-line 7
-line 8
-line 9
-line 10
-        ";
-        env.add("example.py", contents);
-        env.format(DiagnosticFormat::Full);
-        env.show_fix_diff(true);
-        env.fix_applicability(Applicability::DisplayOnly);
-
-        let mut diagnostic = env.err().primary("example.py", "3", "3", "label").build();
-        diagnostic.help("Start of diff:");
-        let target = "line 7";
-        let line9 = contents.find(target).unwrap();
-        let range = TextRange::at(TextSize::try_from(line9).unwrap(), target.text_len());
-        diagnostic.set_fix(Fix::unsafe_edit(Edit::range_replacement(
-            format!("fixed {target}"),
-            range,
-        )));
-
-        insta::assert_snapshot!(env.render(&diagnostic), @r"
-        error[test-diagnostic][*]: main diagnostic message
-         --> example.py:3:1
-          |
-        1 | line 1
-        2 | line 2
-        3 | line 3
-          | ^^^^^^ label
-        4 | line 4
-        5 | line 5
-          |
-        help: Start of diff:
-        4  | line 4
-        5  | line 5
-        6  | line 6
-           - line 7
-        7  + fixed line 7
-        8  | line 8
-        9  | line 9
-        10 | line 10
-        note: This is an unsafe fix and may change runtime behavior
-        ");
-    }
 }
--- a/crates/ruff_db/src/diagnostic/render/gitlab.rs
+++ b/crates/ruff_db/src/diagnostic/render/gitlab.rs
@@ -1,205 +0,0 @@
-use std::{
-    collections::HashSet,
-    hash::{DefaultHasher, Hash, Hasher},
-    path::Path,
-};
-
-use ruff_source_file::LineColumn;
-use serde::{Serialize, Serializer, ser::SerializeSeq};
-
-use crate::diagnostic::{Diagnostic, Severity};
-
-use super::FileResolver;
-
-pub(super) struct GitlabRenderer<'a> {
-    resolver: &'a dyn FileResolver,
-}
-
-impl<'a> GitlabRenderer<'a> {
-    pub(super) fn new(resolver: &'a dyn FileResolver) -> Self {
-        Self { resolver }
-    }
-}
-
-impl GitlabRenderer<'_> {
-    pub(super) fn render(
-        &self,
-        f: &mut std::fmt::Formatter,
-        diagnostics: &[Diagnostic],
-    ) -> std::fmt::Result {
-        write!(
-            f,
-            "{}",
-            serde_json::to_string_pretty(&SerializedMessages {
-                diagnostics,
-                resolver: self.resolver,
-                #[expect(
-                    clippy::disallowed_methods,
-                    reason = "We don't have access to a `System` here, \
-                              and this is only intended for use by GitLab CI, \
-                              which runs on a real `System`."
-                )]
-                project_dir: std::env::var("CI_PROJECT_DIR").ok().as_deref(),
-            })
-            .unwrap()
-        )
-    }
-}
-
-struct SerializedMessages<'a> {
-    diagnostics: &'a [Diagnostic],
-    resolver: &'a dyn FileResolver,
-    project_dir: Option<&'a str>,
-}
-
-impl Serialize for SerializedMessages<'_> {
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: Serializer,
-    {
-        let mut s = serializer.serialize_seq(Some(self.diagnostics.len()))?;
-        let mut fingerprints = HashSet::<u64>::with_capacity(self.diagnostics.len());
-
-        for diagnostic in self.diagnostics {
-            let location = diagnostic
-                .primary_span()
-                .map(|span| {
-                    let file = span.file();
-                    let positions = if self.resolver.is_notebook(file) {
-                        // We can't give a reasonable location for the structured formats,
-                        // so we show one that's clearly a fallback
-                        Default::default()
-                    } else {
-                        let diagnostic_source = file.diagnostic_source(self.resolver);
-                        let source_code = diagnostic_source.as_source_code();
-                        span.range()
-                            .map(|range| Positions {
-                                begin: source_code.line_column(range.start()),
-                                end: source_code.line_column(range.end()),
-                            })
-                            .unwrap_or_default()
-                    };
-
-                    let path = self.project_dir.as_ref().map_or_else(
-                        || file.relative_path(self.resolver).display().to_string(),
-                        |project_dir| relativize_path_to(file.path(self.resolver), project_dir),
-                    );
-
-                    Location { path, positions }
-                })
-                .unwrap_or_default();
-
-            let mut message_fingerprint = fingerprint(diagnostic, &location.path, 0);
-
-            // Make sure that we do not get a fingerprint that is already in use
-            // by adding in the previously generated one.
-            while fingerprints.contains(&message_fingerprint) {
-                message_fingerprint = fingerprint(diagnostic, &location.path, message_fingerprint);
-            }
-            fingerprints.insert(message_fingerprint);
-
-            let description = diagnostic.body();
-            let check_name = diagnostic.secondary_code_or_id();
-            let severity = match diagnostic.severity() {
-                Severity::Info => "info",
-                Severity::Warning => "minor",
-                Severity::Error => "major",
-                // Another option here is `blocker`
-                Severity::Fatal => "critical",
-            };
-
-            let value = Message {
-                check_name,
-                // GitLab doesn't display the separate `check_name` field in a Code Quality report,
-                // so prepend it to the description too.
-                description: format!("{check_name}: {description}"),
-                severity,
-                fingerprint: format!("{:x}", message_fingerprint),
-                location,
-            };
-
-            s.serialize_element(&value)?;
-        }
-
-        s.end()
-    }
-}
-
-#[derive(Serialize)]
-struct Message<'a> {
-    check_name: &'a str,
-    description: String,
-    severity: &'static str,
-    fingerprint: String,
-    location: Location,
-}
-
-/// The place in the source code where the issue was discovered.
-///
-/// According to the CodeClimate report format [specification] linked from the GitLab [docs], this
-/// field is required, so we fall back on a default `path` and position if the diagnostic doesn't
-/// have a primary span.
-///
-/// [specification]: https://github.com/codeclimate/platform/blob/master/spec/analyzers/SPEC.md#data-types
-/// [docs]: https://docs.gitlab.com/ci/testing/code_quality/#code-quality-report-format
-#[derive(Default, Serialize)]
-struct Location {
-    path: String,
-    positions: Positions,
-}
-
-#[derive(Default, Serialize)]
-struct Positions {
-    begin: LineColumn,
-    end: LineColumn,
-}
-
-/// Generate a unique fingerprint to identify a violation.
-fn fingerprint(diagnostic: &Diagnostic, project_path: &str, salt: u64) -> u64 {
-    let mut hasher = DefaultHasher::new();
-
-    salt.hash(&mut hasher);
-    diagnostic.name().hash(&mut hasher);
-    project_path.hash(&mut hasher);
-
-    hasher.finish()
-}
-
-/// Convert an absolute path to be relative to the specified project root.
-fn relativize_path_to<P: AsRef<Path>, R: AsRef<Path>>(path: P, project_root: R) -> String {
-    format!(
-        "{}",
-        pathdiff::diff_paths(&path, project_root)
-            .expect("Could not diff paths")
-            .display()
-    )
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::diagnostic::{
-        DiagnosticFormat,
-        render::tests::{create_diagnostics, create_syntax_error_diagnostics},
-    };
-
-    const FINGERPRINT_FILTERS: [(&str, &str); 1] = [(
-        r#""fingerprint": "[a-z0-9]+","#,
-        r#""fingerprint": "<redacted>","#,
-    )];
-
-    #[test]
-    fn output() {
-        let (env, diagnostics) = create_diagnostics(DiagnosticFormat::Gitlab);
-        insta::with_settings!({filters => FINGERPRINT_FILTERS}, {
-            insta::assert_snapshot!(env.render_diagnostics(&diagnostics));
-        });
-    }
-
-    #[test]
-    fn syntax_errors() {
-        let (env, diagnostics) = create_syntax_error_diagnostics(DiagnosticFormat::Gitlab);
-        insta::with_settings!({filters => FINGERPRINT_FILTERS}, {
-            insta::assert_snapshot!(env.render_diagnostics(&diagnostics));
-        });
-    }
-}
--- a/crates/ruff_db/src/diagnostic/render/snapshots/ruff_dbdiagnosticrendergitlabtests__output.snap
+++ b/crates/ruff_db/src/diagnostic/render/snapshots/ruff_dbdiagnosticrendergitlabtests__output.snap
@@ -1,63 +0,0 @@
---
-source: crates/ruff_db/src/diagnostic/render/gitlab.rs
-expression: env.render_diagnostics(&diagnostics)
---
-[
-  {
-    "check_name": "F401",
-    "description": "F401: `os` imported but unused",
-    "severity": "major",
-    "fingerprint": "<redacted>",
-    "location": {
-      "path": "fib.py",
-      "positions": {
-        "begin": {
-          "line": 1,
-          "column": 8
-        },
-        "end": {
-          "line": 1,
-          "column": 10
-        }
-      }
-    }
-  },
-  {
-    "check_name": "F841",
-    "description": "F841: Local variable `x` is assigned to but never used",
-    "severity": "major",
-    "fingerprint": "<redacted>",
-    "location": {
-      "path": "fib.py",
-      "positions": {
-        "begin": {
-          "line": 6,
-          "column": 5
-        },
-        "end": {
-          "line": 6,
-          "column": 6
-        }
-      }
-    }
-  },
-  {
-    "check_name": "F821",
-    "description": "F821: Undefined name `a`",
-    "severity": "major",
-    "fingerprint": "<redacted>",
-    "location": {
-      "path": "undef.py",
-      "positions": {
-        "begin": {
-          "line": 1,
-          "column": 4
-        },
-        "end": {
-          "line": 1,
-          "column": 5
-        }
-      }
-    }
-  }
-]
--- a/crates/ruff_db/src/diagnostic/render/snapshots/ruff_dbdiagnosticrendergitlabtests__syntax_errors.snap
+++ b/crates/ruff_db/src/diagnostic/render/snapshots/ruff_dbdiagnosticrendergitlabtests__syntax_errors.snap
@@ -1,44 +0,0 @@
---
-source: crates/ruff_db/src/diagnostic/render/gitlab.rs
-expression: env.render_diagnostics(&diagnostics)
---
-[
-  {
-    "check_name": "invalid-syntax",
-    "description": "invalid-syntax: Expected one or more symbol names after import",
-    "severity": "major",
-    "fingerprint": "<redacted>",
-    "location": {
-      "path": "syntax_errors.py",
-      "positions": {
-        "begin": {
-          "line": 1,
-          "column": 15
-        },
-        "end": {
-          "line": 2,
-          "column": 1
-        }
-      }
-    }
-  },
-  {
-    "check_name": "invalid-syntax",
-    "description": "invalid-syntax: Expected ')', found newline",
-    "severity": "major",
-    "fingerprint": "<redacted>",
-    "location": {
-      "path": "syntax_errors.py",
-      "positions": {
-        "begin": {
-          "line": 3,
-          "column": 12
-        },
-        "end": {
-          "line": 4,
-          "column": 1
-        }
-      }
-    }
-  }
-]
--- a/crates/ruff_db/src/diagnostic/stylesheet.rs
+++ b/crates/ruff_db/src/diagnostic/stylesheet.rs
@@ -43,10 +43,6 @@ pub struct DiagnosticStylesheet {
    pub(crate) none: Style,
    pub(crate) separator: Style,
    pub(crate) secondary_code: Style,
-    pub(crate) insertion: Style,
-    pub(crate) deletion: Style,
-    pub(crate) insertion_line_no: Style,
-    pub(crate) deletion_line_no: Style,
 }

 impl Default for DiagnosticStylesheet {
@@ -70,10 +66,6 @@ impl DiagnosticStylesheet {
            none: Style::new(),
            separator: AnsiColor::Cyan.on_default(),
            secondary_code: AnsiColor::Red.on_default().effects(Effects::BOLD),
-            insertion: AnsiColor::Green.on_default(),
-            deletion: AnsiColor::Red.on_default(),
-            insertion_line_no: AnsiColor::Green.on_default().effects(Effects::BOLD),
-            deletion_line_no: AnsiColor::Red.on_default().effects(Effects::BOLD),
        }
    }

@@ -89,10 +81,6 @@ impl DiagnosticStylesheet {
            none: Style::new(),
            separator: Style::new(),
            secondary_code: Style::new(),
-            insertion: Style::new(),
-            deletion: Style::new(),
-            insertion_line_no: Style::new(),
-            deletion_line_no: Style::new(),
        }
    }
 }
--- a/crates/ruff_db/src/file_revision.rs
+++ b/crates/ruff_db/src/file_revision.rs
@@ -9,7 +9,7 @@ use crate::system::file_time_now;
 /// * The last modification time of the file.
 /// * The hash of the file's content.
 /// * The revision as it comes from an external system, for example the LSP.
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Default, get_size2::GetSize)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Default)]
 pub struct FileRevision(u128);

 impl FileRevision {
--- a/crates/ruff_db/src/files.rs
+++ b/crates/ruff_db/src/files.rs
@@ -87,12 +87,11 @@ impl Files {
            .system_by_path
            .entry(absolute.clone())
            .or_insert_with(|| {
+                tracing::trace!("Adding file '{path}'");
+
                let metadata = db.system().path_metadata(path);
-
-                tracing::trace!("Adding file '{absolute}'");
-
                let durability = self
-                    .root(db, &absolute)
+                    .root(db, path)
                    .map_or(Durability::default(), |root| root.durability(db));

                let builder = File::builder(FilePath::System(absolute))
@@ -290,7 +289,7 @@ impl std::panic::RefUnwindSafe for Files {}
 /// # Ordering
 /// Ordering is based on the file's salsa-assigned id and not on its values.
 /// The id may change between runs.
-#[salsa::input(heap_size=ruff_memory_usage::heap_size)]
+#[salsa::input]
 #[derive(PartialOrd, Ord)]
 pub struct File {
    /// The path of the file (immutable).
@@ -522,7 +521,7 @@ impl VirtualFile {
 // The types in here need to be public because they're salsa ingredients but we
 // don't want them to be publicly accessible. That's why we put them into a private module.
 mod private {
-    #[derive(Copy, Clone, Debug, Eq, PartialEq, Default, get_size2::GetSize)]
+    #[derive(Copy, Clone, Debug, Eq, PartialEq, Default)]
    pub enum FileStatus {
        /// The file exists.
        #[default]
--- a/crates/ruff_db/src/files/file_root.rs
+++ b/crates/ruff_db/src/files/file_root.rs
@@ -16,7 +16,7 @@ use crate::system::{SystemPath, SystemPathBuf};
 /// The main usage of file roots is to determine a file's durability. But it can also be used
 /// to make a salsa query dependent on whether a file in a root has changed without writing any
 /// manual invalidation logic.
-#[salsa::input(debug, heap_size=ruff_memory_usage::heap_size)]
+#[salsa::input(debug)]
 pub struct FileRoot {
    /// The path of a root is guaranteed to never change.
    #[returns(deref)]
@@ -37,7 +37,7 @@ impl FileRoot {
    }
 }

-#[derive(Copy, Clone, Debug, Eq, PartialEq, get_size2::GetSize)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
 pub enum FileRootKind {
    /// The root of a project.
    Project,
--- a/crates/ruff_db/src/files/path.rs
+++ b/crates/ruff_db/src/files/path.rs
@@ -11,7 +11,7 @@ use std::fmt::{Display, Formatter};
 /// * a file stored on the [host system](crate::system::System).
 /// * a virtual file stored on the [host system](crate::system::System).
 /// * a vendored file stored in the [vendored file system](crate::vendored::VendoredFileSystem).
-#[derive(Clone, Debug, Eq, PartialEq, Hash, get_size2::GetSize)]
+#[derive(Clone, Debug, Eq, PartialEq, Hash)]
 pub enum FilePath {
    /// Path to a file on the [host system](crate::system::System).
    System(SystemPathBuf),
--- a/crates/ruff_db/src/lib.rs
+++ b/crates/ruff_db/src/lib.rs
@@ -1,8 +1,3 @@
-#![warn(
-    clippy::disallowed_methods,
-    reason = "Prefer System trait methods over std methods"
-)]
-
 use crate::files::Files;
 use crate::system::System;
 use crate::vendored::VendoredFileSystem;
@@ -70,10 +65,6 @@ pub trait Db: salsa::Database {
 /// to process work in parallel. For example, to index a directory or checking the files of a project.
 /// ty can still spawn more threads for other tasks, e.g. to wait for a Ctrl+C signal or
 /// watching the files for changes.
-#[expect(
-    clippy::disallowed_methods,
-    reason = "We don't have access to System here, but this is also only used by the CLI and the server which always run on a real system."
-)]
 pub fn max_parallelism() -> NonZeroUsize {
    std::env::var(EnvVars::TY_MAX_PARALLELISM)
        .or_else(|_| std::env::var(EnvVars::RAYON_NUM_THREADS))
--- a/crates/ruff_db/src/parsed.rs
+++ b/crates/ruff_db/src/parsed.rs
@@ -92,14 +92,14 @@ impl ParsedModule {
        self.inner.store(None);
    }

-    /// Returns the pointer address of this [`ParsedModule`].
+    /// Returns a pointer for this [`ParsedModule`].
    ///
    /// The pointer uniquely identifies the module within the current Salsa revision,
    /// regardless of whether particular [`ParsedModuleRef`] instances are garbage collected.
-    pub fn addr(&self) -> usize {
+    pub fn as_ptr(&self) -> *const () {
        // Note that the outer `Arc` in `inner` is stable across garbage collection, while the inner
        // `Arc` within the `ArcSwap` may change.
-        Arc::as_ptr(&self.inner).addr()
+        Arc::as_ptr(&self.inner).cast()
    }
 }

@@ -202,13 +202,9 @@ mod indexed {

        /// Returns the node at the given index.
        pub fn get_by_index<'ast>(&'ast self, index: NodeIndex) -> AnyRootNodeRef<'ast> {
-            let index = index
-                .as_u32()
-                .expect("attempted to access uninitialized `NodeIndex`");
-
            // Note that this method restores the correct lifetime: the nodes are valid for as
            // long as the reference to `IndexedModule` is alive.
-            self.index[index as usize]
+            self.index[index.as_usize()]
        }
    }

@@ -224,7 +220,7 @@ mod indexed {
            T: HasNodeIndex + std::fmt::Debug,
            AnyRootNodeRef<'a>: From<&'a T>,
        {
-            node.node_index().set(NodeIndex::from(self.index));
+            node.node_index().set(self.index);
            self.nodes.push(AnyRootNodeRef::from(node));
            self.index += 1;
        }
--- a/crates/ruff_db/src/system.rs
+++ b/crates/ruff_db/src/system.rs
@@ -46,7 +46,7 @@ pub type Result<T> = std::io::Result<T>;
 ///    * File watching isn't supported.
 ///
 /// Abstracting the system also enables tests to use a more efficient in-memory file system.
-pub trait System: Debug + Sync + Send {
+pub trait System: Debug {
    /// Reads the metadata of the file or directory at `path`.
    ///
    /// This function will traverse symbolic links to query information about the destination file.
@@ -197,8 +197,6 @@ pub trait System: Debug + Sync + Send {
    fn as_any(&self) -> &dyn std::any::Any;

    fn as_any_mut(&mut self) -> &mut dyn std::any::Any;
-
-    fn dyn_clone(&self) -> Box<dyn System>;
 }

 #[derive(Debug, Default, Copy, Clone, Eq, PartialEq)]
--- a/crates/ruff_db/src/system/os.rs
+++ b/crates/ruff_db/src/system/os.rs
@@ -1,5 +1,3 @@
-#![allow(clippy::disallowed_methods)]
-
 use super::walk_directory::{
    self, DirectoryWalker, WalkDirectoryBuilder, WalkDirectoryConfiguration,
    WalkDirectoryVisitorBuilder, WalkState,
@@ -257,10 +255,6 @@ impl System for OsSystem {
    fn env_var(&self, name: &str) -> std::result::Result<String, std::env::VarError> {
        std::env::var(name)
    }
-
-    fn dyn_clone(&self) -> Box<dyn System> {
-        Box::new(self.clone())
-    }
 }

 impl OsSystem {
--- a/crates/ruff_db/src/system/path.rs
+++ b/crates/ruff_db/src/system/path.rs
@@ -762,7 +762,7 @@ impl SystemVirtualPath {
 }

 /// An owned, virtual path on [`System`](`super::System`) (akin to [`String`]).
-#[derive(Eq, PartialEq, Clone, Hash, PartialOrd, Ord, get_size2::GetSize)]
+#[derive(Eq, PartialEq, Clone, Hash, PartialOrd, Ord)]
 pub struct SystemVirtualPathBuf(String);

 impl SystemVirtualPathBuf {
--- a/crates/ruff_db/src/system/test.rs
+++ b/crates/ruff_db/src/system/test.rs
@@ -146,10 +146,6 @@ impl System for TestSystem {
    fn case_sensitivity(&self) -> CaseSensitivity {
        self.system().case_sensitivity()
    }
-
-    fn dyn_clone(&self) -> Box<dyn System> {
-        Box::new(self.clone())
-    }
 }

 impl Default for TestSystem {
@@ -398,13 +394,6 @@ impl System for InMemorySystem {
    fn case_sensitivity(&self) -> CaseSensitivity {
        CaseSensitivity::CaseSensitive
    }
-
-    fn dyn_clone(&self) -> Box<dyn System> {
-        Box::new(Self {
-            user_config_directory: Mutex::new(self.user_config_directory.lock().unwrap().clone()),
-            memory_fs: self.memory_fs.clone(),
-        })
-    }
 }

 impl WritableSystem for InMemorySystem {
--- a/crates/ruff_dev/Cargo.toml
+++ b/crates/ruff_dev/Cargo.toml
@@ -13,7 +13,6 @@ license = { workspace = true }
 [dependencies]
 ty = { workspace = true }
 ty_project = { workspace = true, features = ["schemars"] }
-ty_python_semantic = { workspace = true }
 ty_static = { workspace = true }
 ruff = { workspace = true }
 ruff_formatter = { workspace = true }
--- a/crates/ruff_dev/src/generate_ty_rules.rs
+++ b/crates/ruff_dev/src/generate_ty_rules.rs
@@ -52,7 +52,7 @@ pub(crate) fn main(args: &Args) -> Result<()> {
 }

 fn generate_markdown() -> String {
-    let registry = ty_python_semantic::default_lint_registry();
+    let registry = &*ty_project::DEFAULT_LINT_REGISTRY;

    let mut output = String::new();

--- a/crates/ruff_diagnostics/Cargo.toml
+++ b/crates/ruff_diagnostics/Cargo.toml
@@ -14,11 +14,8 @@ license = { workspace = true }
 doctest = false

 [dependencies]
-ruff_text_size = { workspace = true, features = ["get-size"] }
+ruff_text_size = { workspace = true }

 get-size2 = { workspace = true }
 is-macro = { workspace = true }
 serde = { workspace = true, optional = true, features = [] }
-
-[features]
-serde = ["dep:serde", "ruff_text_size/serde"]
--- a/crates/ruff_formatter/src/lib.rs
+++ b/crates/ruff_formatter/src/lib.rs
@@ -81,19 +81,14 @@ impl IndentStyle {
    pub const fn is_space(&self) -> bool {
        matches!(self, IndentStyle::Space)
    }
-
-    /// Returns the string representation of the indent style.
-    pub const fn as_str(&self) -> &'static str {
-        match self {
-            IndentStyle::Tab => "tab",
-            IndentStyle::Space => "space",
-        }
-    }
 }

 impl std::fmt::Display for IndentStyle {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_str(self.as_str())
+        match self {
+            IndentStyle::Tab => std::write!(f, "tab"),
+            IndentStyle::Space => std::write!(f, "space"),
+        }
    }
 }

--- a/crates/ruff_formatter/src/printer/printer_options/mod.rs
+++ b/crates/ruff_formatter/src/printer/printer_options/mod.rs
@@ -139,16 +139,4 @@ impl LineEnding {
            LineEnding::CarriageReturn => "\r",
        }
    }
-
-    /// Returns the string used to configure this line ending.
-    ///
-    /// See [`LineEnding::as_str`] for the actual string representation of the line ending.
-    #[inline]
-    pub const fn as_setting_str(&self) -> &'static str {
-        match self {
-            LineEnding::LineFeed => "lf",
-            LineEnding::CarriageReturnLineFeed => "crlf",
-            LineEnding::CarriageReturn => "cr",
-        }
-    }
 }
--- a/crates/ruff_linter/Cargo.toml
+++ b/crates/ruff_linter/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff_linter"
-version = "0.13.0"
+version = "0.12.8"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }
@@ -13,6 +13,7 @@ license = { workspace = true }
 [lib]

 [dependencies]
+ruff_annotate_snippets = { workspace = true }
 ruff_cache = { workspace = true }
 ruff_db = { workspace = true, features = ["junit", "serde"] }
 ruff_diagnostics = { workspace = true, features = ["serde"] }
@@ -51,6 +52,7 @@ path-absolutize = { workspace = true, features = [
    "once_cell_cache",
    "use_unix_paths_on_wasm",
 ] }
+pathdiff = { workspace = true }
 pep440_rs = { workspace = true }
 pyproject-toml = { workspace = true }
 regex = { workspace = true }
--- a/crates/ruff_linter/resources/test/fixtures/airflow/AIR301_names.py
+++ b/crates/ruff_linter/resources/test/fixtures/airflow/AIR301_names.py
@@ -12,9 +12,7 @@ from airflow import (
 from airflow.api_connexion.security import requires_access
 from airflow.contrib.aws_athena_hook import AWSAthenaHook
 from airflow.datasets import DatasetAliasEvent
-from airflow.operators.postgres_operator import Mapping
 from airflow.operators.subdag import SubDagOperator
-from airflow.secrets.cache import SecretCache
 from airflow.secrets.local_filesystem import LocalFilesystemBackend
 from airflow.triggers.external_task import TaskStateTrigger
 from airflow.utils import dates
@@ -53,16 +51,11 @@ DatasetAliasEvent()
 # airflow.operators.subdag.*
 SubDagOperator()

-# airflow.operators.postgres_operator
-Mapping()

 # airflow.secrets
 # get_connection
 LocalFilesystemBackend()

-# airflow.secrets.cache
-SecretCache()
-

 # airflow.triggers.external_task
 TaskStateTrigger()
--- a/crates/ruff_linter/resources/test/fixtures/airflow/AIR311_names.py
+++ b/crates/ruff_linter/resources/test/fixtures/airflow/AIR311_names.py
@@ -34,7 +34,7 @@ task_group()
 setup()
 from airflow.decorators import teardown
 from airflow.io.path import ObjectStoragePath
-from airflow.io.store import attach
+from airflow.io.storage import attach
 from airflow.models import DAG as DAGFromModel
 from airflow.models import (
    Connection,
@@ -70,40 +70,7 @@ from airflow.timetables.datasets import DatasetOrTimeSchedule
 from airflow.utils.dag_parsing_context import get_parsing_context

 # airflow.timetables.datasets
-DatasetOrTimeSchedule(datasets=[])
+DatasetOrTimeSchedule()

 # airflow.utils.dag_parsing_context
 get_parsing_context()
-
-from airflow.decorators.base import (
-    DecoratedMappedOperator,
-    DecoratedOperator,
-    TaskDecorator,
-    get_unique_task_id,
-    task_decorator_factory,
-)
-
-# airflow.decorators.base
-DecoratedMappedOperator()
-DecoratedOperator()
-TaskDecorator()
-get_unique_task_id()
-task_decorator_factory()
-
-
-from airflow.models import Param
-
-# airflow.models
-Param()
-
-
-from airflow.sensors.base import (
-    BaseSensorOperator,
-    PokeReturnValue,
-    poke_mode_only,
-)
-
-# airflow.sensors.base
-BaseSensorOperator()
-PokeReturnValue()
-poke_mode_only()
--- a/crates/ruff_linter/resources/test/fixtures/airflow/AIR312.py
+++ b/crates/ruff_linter/resources/test/fixtures/airflow/AIR312.py
@@ -9,6 +9,7 @@ from airflow.operators.empty import EmptyOperator
 from airflow.operators.latest_only import LatestOnlyOperator
 from airflow.operators.trigger_dagrun import TriggerDagRunOperator
 from airflow.operators.weekday import BranchDayOfWeekOperator
+from airflow.sensors.date_time import DateTimeSensor

 FSHook()
 PackageIndexHook()
@@ -21,6 +22,7 @@ EmptyOperator()

 LatestOnlyOperator()
 BranchDayOfWeekOperator()
+DateTimeSensor()

 from airflow.operators.python import (
    BranchPythonOperator,
@@ -28,23 +30,16 @@ from airflow.operators.python import (
    PythonVirtualenvOperator,
    ShortCircuitOperator,
 )
-from airflow.sensors.bash import BashSensor
-from airflow.sensors.date_time import DateTimeSensor
-
-BranchPythonOperator()
-PythonOperator()
-PythonVirtualenvOperator()
-ShortCircuitOperator()
-
-BashSensor()
-DateTimeSensor()
 from airflow.sensors.date_time import DateTimeSensorAsync
 from airflow.sensors.external_task import (
    ExternalTaskMarker,
    ExternalTaskSensor,
 )
+from airflow.sensors.time_sensor import (
+    TimeSensor,
+    TimeSensorAsync,
+)
 from airflow.sensors.filesystem import FileSensor
-from airflow.sensors.python import PythonSensor

 BranchPythonOperator()
 PythonOperator()
@@ -54,13 +49,6 @@ DateTimeSensorAsync()
 ExternalTaskMarker()
 ExternalTaskSensor()
 FileSensor()
-PythonSensor()
-
-from airflow.sensors.time_sensor import (
-    TimeSensor,
-    TimeSensorAsync,
-)
-
 TimeSensor()
 TimeSensorAsync()

--- a/crates/ruff_linter/resources/test/fixtures/fastapi/FAST003.py
+++ b/crates/ruff_linter/resources/test/fixtures/fastapi/FAST003.py
@@ -213,17 +213,3 @@ async def get_id_pydantic_full(
 async def get_id_pydantic_short(params: Annotated[PydanticParams, Depends()]): ...
@app.get("/{my_id}")
 async def get_id_init_not_annotated(params = Depends(InitParams)): ...
-
-@app.get("/things/{ thing_id }")
-async def read_thing(query: str):
-    return {"query": query}
-
-
-@app.get("/things/{ thing_id : path }")
-async def read_thing(query: str):
-    return {"query": query}
-
-
-@app.get("/things/{ thing_id : str }")
-async def read_thing(query: str):
-    return {"query": query}
--- a/crates/ruff_linter/resources/test/fixtures/flake8_async/ASYNC212.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_async/ASYNC212.py
@@ -1,75 +0,0 @@
-from typing import Optional
-
-import httpx
-
-
-def foo():
-    client = httpx.Client()
-    client.close()  # Ok
-    client.delete()  # Ok
-    client.get()  # Ok
-    client.head()  # Ok
-    client.options()  # Ok
-    client.patch()  # Ok
-    client.post()  # Ok
-    client.put()  # Ok
-    client.request()  # Ok
-    client.send()  # Ok
-    client.stream()  # Ok
-
-    client.anything()  # Ok
-    client.build_request()  # Ok
-    client.is_closed  # Ok
-
-
-async def foo():
-    client = httpx.Client()
-    client.close()  # ASYNC212
-    client.delete()  # ASYNC212
-    client.get()  # ASYNC212
-    client.head()  # ASYNC212
-    client.options()  # ASYNC212
-    client.patch()  # ASYNC212
-    client.post()  # ASYNC212
-    client.put()  # ASYNC212
-    client.request()  # ASYNC212
-    client.send()  # ASYNC212
-    client.stream()  # ASYNC212
-
-    client.anything()  # Ok
-    client.build_request()  # Ok
-    client.is_closed  # Ok
-
-
-async def foo(client: httpx.Client):
-    client.request()  # ASYNC212
-    client.anything()  # Ok
-
-
-async def foo(client: httpx.Client | None):
-    client.request()  # ASYNC212
-    client.anything()  # Ok
-
-
-async def foo(client: Optional[httpx.Client]):
-    client.request()  # ASYNC212
-    client.anything()  # Ok
-
-
-async def foo():
-    client: httpx.Client = ...
-    client.request()  # ASYNC212
-    client.anything()  # Ok
-
-
-global_client = httpx.Client()
-
-
-async def foo():
-    global_client.request()  # ASYNC212
-    global_client.anything()  # Ok
-
-
-async def foo():
-    async with httpx.AsyncClient() as client:
-        await client.get()  # Ok
--- a/crates/ruff_linter/resources/test/fixtures/flake8_async/ASYNC250.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_async/ASYNC250.py
@@ -1,22 +0,0 @@
-def foo():
-    k = input()  # Ok
-    input("hello world")  # Ok
-
-
-async def foo():
-    k = input()  # ASYNC250
-    input("hello world")  # ASYNC250
-
-
-import builtins
-
-import fake
-
-
-def foo():
-    builtins.input("testing")  # Ok
-
-
-async def foo():
-    builtins.input("testing")  # ASYNC250
-    fake.input("whatever")  # Ok
--- a/crates/ruff_linter/resources/test/fixtures/flake8_blind_except/BLE.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_blind_except/BLE.py
@@ -154,11 +154,6 @@ try:
 except Exception as e:
    raise ValueError from e

-try:
-    ...
-except Exception as e:
-    raise e from ValueError("hello")
-

 try:
    pass
@@ -250,9 +245,3 @@ try:
    pass
 except (Exception, ValueError) as e:
    raise e
-
-# `from None` cause
-try:
-    pass
-except BaseException as e:
-    raise e from None
--- a/crates/ruff_linter/resources/test/fixtures/flake8_comprehensions/C417.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_comprehensions/C417.py
@@ -75,7 +75,3 @@ list(map(lambda x, y: x, [(1, 2), (3, 4)]))
 _ = t"{set(map(lambda x: x % 2 == 0, nums))}"
 _ = t"{dict(map(lambda v: (v, v**2), nums))}"

-
-# See https://github.com/astral-sh/ruff/issues/20198
-# No error: lambda contains `yield`, so map() should not be rewritten
-map(lambda x: (yield x), [1, 2, 3])
--- a/crates/ruff_linter/resources/test/fixtures/flake8_comprehensions/C420_3.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_comprehensions/C420_3.py
@@ -1,43 +0,0 @@
-class C: a = None
-{C.a: None for C.a in "abc"}
-print(C.a)
-
-x = [None]
-{x[0]: None for x[0] in "abc"}
-print(x)
-
-class C(list):
-    def __getitem__(self, index, /):
-        item = super().__getitem__(index)
-        if isinstance(index, slice): item = tuple(item)
-        return item
-x = C()
-{x[:0]: None for x[:0] in "abc"}
-print(x)
-
-
-class C:
-    a = None
-
-def func():
-    {(C.a,): None for (C.a,) in "abc"}  # OK
-
-
-def func():
-    obj = type('obj', (), {'attr': 1})()
-    {(obj.attr,): None for (obj.attr,) in "abc"}  # OK
-
-
-def func():
-    lst = [1, 2, 3]
-    {(lst[0],): None for (lst[0],) in "abc"}  # OK
-
-
-def func():
-    lst = [1, 2, 3, 4, 5]
-    {(lst[1:3],): None for (lst[1:3],) in "abc"}  # OK
-
-
-# C420: side-effecting assignment targets
-# These should NOT trigger C420 because they have side-effecting assignment targets
-# See https://github.com/astral-sh/ruff/issues/19511
--- a/crates/ruff_linter/resources/test/fixtures/flake8_logging_format/G004.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_logging_format/G004.py
@@ -17,50 +17,3 @@ info(f"{__name__}")
 # Don't trigger for t-strings
 info(t"{name}")
 info(t"{__name__}")
-
-count = 5
-total = 9
-directory_path = "/home/hamir/ruff/crates/ruff_linter/resources/test/"
-logging.info(f"{count} out of {total} files in {directory_path} checked")
-
-
-
-x = 99
-fmt = "08d"
-logger.info(f"{x:{'08d'}}")
-logger.info(f"{x:>10} {x:{fmt}}")
-
-logging.info(f"")
-logging.info(f"This message doesn't have any variables.")
-
-obj = {"key": "value"}
-logging.info(f"Object: {obj!r}")
-
-items_count = 3
-logging.warning(f"Items: {items_count:d}")
-
-data = {"status": "active"}
-logging.info(f"Processing {len(data)} items")
-logging.info(f"Status: {data.get('status', 'unknown').upper()}")
-
-
-result = 123
-logging.info(f"Calculated result: {result + 100}")
-
-temperature = 123
-logging.info(f"Temperature: {temperature:.1f}°C")
-
-class FilePath:
-    def __init__(self, name: str):
-        self.name = name
-
-logging.info(f"No changes made to {file_path.name}.")
-
-user = "tron"
-balance = 123.45
-logging.error(f"Error {404}: User {user} has insufficient balance ${balance:.2f}")
-
-import logging
-
-x = 1
-logging.error(f"{x} -> %s", x)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_logging_format/G004_arg_order.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_logging_format/G004_arg_order.py
@@ -1,10 +0,0 @@
-"""Test f-string argument order."""
-
-import logging
-
-logger = logging.getLogger(__name__)
-
-X = 1
-Y = 2
-logger.error(f"{X} -> %s", Y)
-logger.error(f"{Y} -> %s", X)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT015.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_pytest_style/PT015.py
@@ -23,11 +23,3 @@ def test_error():
    assert list([])
    assert set(set())
    assert tuple("")
-
-# https://github.com/astral-sh/ruff/issues/19935
-def test_all_ok():
-    assert f"{b""}"
-    assert f"{""=}"
-    assert f"{""!a}"
-    assert f"{""!r}"
-    assert f"{"":1}"
--- a/crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM905.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM905.py
@@ -161,12 +161,3 @@ r"""first
 'no need' to escape
 "swap" quote style
 "use' ugly triple quotes""".split("\n")
-
-# https://github.com/astral-sh/ruff/issues/19845
-print("S\x1cP\x1dL\x1eI\x1fT".split())
-print("\x1c\x1d\x1e\x1f>".split(maxsplit=0))
-print("<\x1c\x1d\x1e\x1f".rsplit(maxsplit=0))
-
-# leading/trailing whitespace should not count towards maxsplit
-" a b c d ".split(maxsplit=2)  # ["a", "b", "c d "]
-" a b c d ".rsplit(maxsplit=2)  # [" a b", "c", "d"]
--- a/crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/PTH211.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/PTH211.py
@@ -13,11 +13,3 @@ Path("tmp/python").symlink_to("usr/bin/python", target_is_directory=True)  # Ok
 fd = os.open(".", os.O_RDONLY)
 os.symlink("source.txt", "link.txt", dir_fd=fd)  # Ok: dir_fd is not supported by pathlib
 os.close(fd)
-
-os.symlink(src="usr/bin/python", dst="tmp/python", unknown=True)
-os.symlink("usr/bin/python",  dst="tmp/python", target_is_directory=False)
-
-os.symlink(src="usr/bin/python", dst="tmp/python", dir_fd=None)
-
-os.symlink("usr/bin/python",  dst="tmp/python", target_is_directory=     True    )
-os.symlink("usr/bin/python",  dst="tmp/python", target_is_directory="nonboolean")
--- a/crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/full_name.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_use_pathlib/full_name.py
@@ -106,22 +106,4 @@ os.replace("src", "dst", src_dir_fd=1)
 os.replace("src", "dst", dst_dir_fd=2)

 os.getcwd()
-os.getcwdb()
-
-os.mkdir(path="directory")
-
-os.mkdir(
-    # comment 1
-    "directory",
-    mode=0o777
-)
-
-os.mkdir("directory", mode=0o777, dir_fd=1)
-
-os.makedirs("name", 0o777, exist_ok=False)
-
-os.makedirs("name", 0o777, False)
-
-os.makedirs(name="name", mode=0o777, exist_ok=False)
-
-os.makedirs("name", unknown_kwarg=True)
+os.getcwdb()
--- a/crates/ruff_linter/resources/test/fixtures/isort/required_imports/docstring_with_multiple_continuations.py
+++ b/crates/ruff_linter/resources/test/fixtures/isort/required_imports/docstring_with_multiple_continuations.py
@@ -1,4 +0,0 @@
-"""Hello, world!"""\
-\
-
-x = 1; y = 2
--- a/crates/ruff_linter/resources/test/fixtures/perflint/PERF403.py
+++ b/crates/ruff_linter/resources/test/fixtures/perflint/PERF403.py
@@ -192,24 +192,3 @@ def issue_19005_3():
    c = {}
    for a[0], a[1] in ():
        c[a[0]] = a[1]
-
-
-def issue_19153_1():
-    v = {}
-    for o, (x,) in ["ox"]:
-        v[x,] = o
-    return v
-
-
-def issue_19153_2():
-    v = {}
-    for (o, p), x in [("op", "x")]:
-        v[x] = o, p
-    return v
-
-
-def issue_19153_3():
-    v = {}
-    for o, (x,) in ["ox"]: 
-        v[(x,)] = o 
-    return v
--- a/crates/ruff_linter/resources/test/fixtures/pycodestyle/E731.py
+++ b/crates/ruff_linter/resources/test/fixtures/pycodestyle/E731.py
@@ -190,12 +190,3 @@ foo_tooltip = (
    more

 )
-
-# https://github.com/astral-sh/ruff/issues/20097
-def scope():
-    from collections.abc import Callable
-    from typing import ParamSpec
-
-    P = ParamSpec("P")
-    f1: Callable[P, str] = lambda x: str(x)
-    f2: Callable[..., str] = lambda x: str(x)
--- a/crates/ruff_linter/resources/test/fixtures/pyflakes/F401_35.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyflakes/F401_35.py
@@ -1,16 +0,0 @@
-"""
-Test: allowed-unused-imports-top-level-module
-"""
-
-# No errors
-
-def f():
-    import hvplot
-def f():
-    import hvplot.pandas
-def f():
-    import hvplot.pandas.plots
-def f():
-    from hvplot.pandas import scatter_matrix
-def f():
-    from hvplot.pandas.plots import scatter_matrix
--- a/crates/ruff_linter/resources/test/fixtures/pyflakes/F841_0.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyflakes/F841_0.py
@@ -151,39 +151,3 @@ def f():
        pass
    except Exception as _:
        pass
-
-
-# OK, `__class__` in this case is not the special `__class__` cell, so we don't
-# emit a diagnostic. (It has its own special semantics -- see
-# https://github.com/astral-sh/ruff/pull/20048#discussion_r2298338048 -- but
-# those aren't relevant here.)
-class A:
-    __class__ = 1
-
-
-# The following three cases are flagged because they declare local `__class__`
-# variables that don't refer to the special `__class__` cell.
-class A:
-    def set_class(self, cls):
-        __class__ = cls  # F841
-
-
-class A:
-    class B:
-        def set_class(self, cls):
-            __class__ = cls  # F841
-
-
-class A:
-    def foo():
-        class B:
-            print(__class__)
-            def set_class(self, cls):
-                __class__ = cls  # F841
-
-
-# OK, the `__class__` cell is nonlocal and declared as such.
-class NonlocalDunderClass:
-    def foo():
-        nonlocal __class__
-        __class__ = 1
--- a/crates/ruff_linter/resources/test/fixtures/pylint/bidirectional_unicode.py
+++ b/crates/ruff_linter/resources/test/fixtures/pylint/bidirectional_unicode.py
@@ -4,9 +4,6 @@ print("שלום‬")
 # E2502
 example = "x‏" * 100  #    "‏x" is assigned

-# E2502
-another = "x؜" * 50  #    "؜x" is assigned
-
 # E2502
 if access_level != "none‮⁦":  # Check if admin ⁩⁦' and access_level != 'user
    print("You are an admin.")
--- a/crates/ruff_linter/resources/test/fixtures/pylint/nonlocal_without_binding.py
+++ b/crates/ruff_linter/resources/test/fixtures/pylint/nonlocal_without_binding.py
@@ -44,8 +44,3 @@ def f():
    def g():
        nonlocal x
        x = 2
-
-# OK
-class A:
-    def method(self):
-        nonlocal __class__
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP008.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP008.py
@@ -141,133 +141,3 @@ class ExampleWithKeywords:
    
    def method3(self):
        super(ExampleWithKeywords, self).some_method()  # Should be fixed - no keywords
-
-# See: https://github.com/astral-sh/ruff/issues/19357
-# Must be detected
-class ParentD:
-    def f(self):
-        print("D")
-
-class ChildD1(ParentD):
-    def f(self):
-        if False: __class__ # Python injects __class__ into scope
-        builtins.super(ChildD1, self).f()
-
-class ChildD2(ParentD):
-    def f(self):
-        if False: super # Python injects __class__ into scope
-        builtins.super(ChildD2, self).f()
-
-class ChildD3(ParentD):
-    def f(self):
-        builtins.super(ChildD3, self).f()
-        super # Python injects __class__ into scope
-
-import builtins as builtins_alias
-class ChildD4(ParentD):
-    def f(self):
-        builtins_alias.super(ChildD4, self).f()
-        super # Python injects __class__ into scope
-
-class ChildD5(ParentD):
-    def f(self):
-        super = 1
-        super # Python injects __class__ into scope
-        builtins.super(ChildD5, self).f()
-
-class ChildD6(ParentD):
-    def f(self):
-        super: "Any"
-        __class__ # Python injects __class__ into scope
-        builtins.super(ChildD6, self).f()
-
-class ChildD7(ParentD):
-    def f(self):
-        def x():
-            __class__ # Python injects __class__ into scope
-        builtins.super(ChildD7, self).f()
-
-class ChildD8(ParentD):
-    def f(self):
-        def x():
-            super = 1
-        super # Python injects __class__ into scope
-        builtins.super(ChildD8, self).f()
-
-class ChildD9(ParentD):
-    def f(self):
-        def x():
-            __class__ = 1
-        __class__ # Python injects __class__ into scope
-        builtins.super(ChildD9, self).f()
-
-class ChildD10(ParentD):
-    def f(self):
-        def x():
-            __class__ = 1
-        super # Python injects __class__ into scope
-        builtins.super(ChildD10, self).f()
-
-
-# Must be ignored
-class ParentI:
-    def f(self):
-        print("I")
-
-class ChildI1(ParentI):
-    def f(self):
-        builtins.super(ChildI1, self).f() # no __class__ in the local scope
-
-
-class ChildI2(ParentI):
-    def b(self):
-        x = __class__
-        if False: super
-
-    def f(self):
-        self.b()
-        builtins.super(ChildI2, self).f() # no __class__ in the local scope
-
-class ChildI3(ParentI):
-    def f(self):
-        if False: super
-        def x(_):
-            builtins.super(ChildI3, self).f() # no __class__ in the local scope
-        x(None)
-
-class ChildI4(ParentI):
-    def f(self):
-        super: "str"
-        builtins.super(ChildI4, self).f() # no __class__ in the local scope
-
-class ChildI5(ParentI):
-    def f(self):
-        super = 1
-        __class__ = 3
-        builtins.super(ChildI5, self).f() # no __class__ in the local scope
-
-class ChildI6(ParentI):
-    def f(self):
-        __class__ = None
-        __class__
-        builtins.super(ChildI6, self).f() # no __class__ in the local scope
-
-class ChildI7(ParentI):
-    def f(self):
-        __class__ = None
-        super
-        builtins.super(ChildI7, self).f()
-
-class ChildI8(ParentI):
-    def f(self):
-        __class__: "Any"
-        super
-        builtins.super(ChildI8, self).f()
-
-class ChildI9(ParentI):
-    def f(self):
-        class A:
-            def foo(self):
-                if False: super
-                if False: __class__
-        builtins.super(ChildI9, self).f()
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP010_0.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP010_0.py
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP010_1.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP010_1.py
@@ -1,18 +0,0 @@
-from __future__ import nested_scopes, generators
-from __future__ import with_statement, unicode_literals
-
-from __future__ import absolute_import, division
-from __future__ import generator_stop
-from __future__ import print_function, nested_scopes, generator_stop
-
-print(with_statement)
-generators = 1
-
-
-class Foo():
-
-    def boo(self):
-        print(division)
-
-
-__all__ = ["print_function", "generator_stop"]
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP043.pyi
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP043.pyi
@@ -1,59 +0,0 @@
-from collections.abc import Generator, AsyncGenerator
-
-
-def func() -> Generator[int, None, None]:
-    yield 42
-
-
-def func() -> Generator[int, None]:
-    yield 42
-
-
-def func() -> Generator[int]:
-    yield 42
-
-
-def func() -> Generator[int, int, int]:
-    foo = yield 42
-    return foo
-
-
-def func() -> Generator[int, int, None]:
-    _ = yield 42
-    return None
-
-
-def func() -> Generator[int, None, int]:
-    yield 42
-    return 42
-
-
-async def func() -> AsyncGenerator[int, None]:
-    yield 42
-
-
-async def func() -> AsyncGenerator[int]:
-    yield 42
-
-
-async def func() -> AsyncGenerator[int, int]:
-    foo = yield 42
-    return foo
-
-
-from typing import Generator, AsyncGenerator
-
-
-def func() -> Generator[str, None, None]:
-    yield "hello"
-
-
-async def func() -> AsyncGenerator[str, None]:
-    yield "hello"
-
-
-async def func() -> AsyncGenerator[  # type: ignore
-    str,
-    None
-]:
-    yield "hello"
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP045.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP045.py
@@ -69,10 +69,3 @@ a7: OptionalTE[typing.NamedTuple] = None
 a8: typing_extensions.Optional[typing.NamedTuple] = None
 a9: "Optional[NamedTuple]" = None
 a10: Optional[NamedTupleTE] = None
-
-
-# Test for: https://github.com/astral-sh/ruff/issues/19746
-# Nested Optional types should be flattened
-nested_optional: Optional[Optional[str]] = None
-nested_optional_typing: typing.Optional[Optional[int]] = None
-triple_nested_optional: Optional[Optional[Optional[str]]] = None
--- a/crates/ruff_linter/resources/test/fixtures/ruff/RUF026.py
+++ b/crates/ruff_linter/resources/test/fixtures/ruff/RUF026.py
@@ -118,10 +118,3 @@ def func():
        return lambda: value

    defaultdict(constant_factory("<missing>"))
-
-def func():
-    defaultdict(default_factory=t"")  # OK
-
-
-def func():
-    defaultdict(default_factory=t"hello")  # OK
--- a/crates/ruff_linter/resources/test/fixtures/ruff/RUF033.py
+++ b/crates/ruff_linter/resources/test/fixtures/ruff/RUF033.py
@@ -124,19 +124,3 @@ def fun_with_python_syntax():
            ...

    return Foo
-
-
-@dataclass
-class C:
-    def __post_init__(self, x: tuple[int, ...] = (
-        1,
-        2,
-    )) -> None:
-        self.x = x
-
-
-@dataclass
-class D:
-    def __post_init__(self, x: int = """
-    """) -> None:
-        self.x = x
--- a/crates/ruff_linter/resources/test/fixtures/ruff/RUF037.py
+++ b/crates/ruff_linter/resources/test/fixtures/ruff/RUF037.py
@@ -102,17 +102,3 @@ deque("abc") # OK
 deque(b"abc") # OK
 deque(f"" "a")  # OK
 deque(f"{x}" "")  # OK
-
-# https://github.com/astral-sh/ruff/issues/19951
-deque(t"")
-deque(t""  t"")
-deque(t"{""}") # OK
-
-# https://github.com/astral-sh/ruff/issues/20050
-deque(f"{""}")  # RUF037
-
-deque(f"{b""}")
-deque(f"{""=}")
-deque(f"{""!a}")
-deque(f"{""!r}")
-deque(f"{"":1}")
--- a/crates/ruff_linter/resources/test/fixtures/ruff/RUF060.py
+++ b/crates/ruff_linter/resources/test/fixtures/ruff/RUF060.py
@@ -42,7 +42,3 @@ b"a" in bytes("a", "utf-8")
 1 in set(set([1]))
 '' in {""}
 frozenset() in {frozenset()}
-
-# https://github.com/astral-sh/ruff/issues/20238
-"b" in f"" "" # Error
-"b" in f"" "x" # OK
--- a/crates/ruff_linter/resources/test/fixtures/ruff/RUF064.py
+++ b/crates/ruff_linter/resources/test/fixtures/ruff/RUF064.py
@@ -51,11 +51,3 @@ dbm.ndbm.open("db", "r", 0o600)  # OK

 os.fchmod(0, 256)  # 0o400
 os.fchmod(0, 493)  # 0o755
-
-# https://github.com/astral-sh/ruff/issues/19010
-os.chmod("foo", 000)  # Error
-os.chmod("foo", 0000)  # Error
-
-os.chmod("foo", 0b0)  # Error
-os.chmod("foo", 0x0)  # Error
-os.chmod("foo", 0)  # Ok
--- a/crates/ruff_linter/resources/test/fixtures/syntax_errors/yield_from_in_async_function.py
+++ b/crates/ruff_linter/resources/test/fixtures/syntax_errors/yield_from_in_async_function.py
@@ -1 +0,0 @@
-async def f(): yield from x # error
--- a/crates/ruff_linter/src/checkers/ast/analyze/deferred_scopes.rs
+++ b/crates/ruff_linter/src/checkers/ast/analyze/deferred_scopes.rs
@@ -1,11 +1,10 @@
-use ruff_python_ast::PythonVersion;
 use ruff_python_semantic::{Binding, ScopeKind};

 use crate::checkers::ast::Checker;
 use crate::codes::Rule;
 use crate::rules::{
    flake8_builtins, flake8_pyi, flake8_type_checking, flake8_unused_arguments, pep8_naming,
-    pyflakes, pylint, pyupgrade, ruff,
+    pyflakes, pylint, ruff,
 };

 /// Run lint rules over all deferred scopes in the [`SemanticModel`].
@@ -46,7 +45,6 @@ pub(crate) fn deferred_scopes(checker: &Checker) {
        Rule::UnusedStaticMethodArgument,
        Rule::UnusedUnpackedVariable,
        Rule::UnusedVariable,
-        Rule::UnnecessaryFutureImport,
    ]) {
        return;
    }
@@ -226,11 +224,6 @@ pub(crate) fn deferred_scopes(checker: &Checker) {
            if checker.is_rule_enabled(Rule::UnusedImport) {
                pyflakes::rules::unused_import(checker, scope);
            }
-            if checker.is_rule_enabled(Rule::UnnecessaryFutureImport) {
-                if checker.target_version() >= PythonVersion::PY37 {
-                    pyupgrade::rules::unnecessary_future_import(checker, scope);
-                }
-            }

            if checker.is_rule_enabled(Rule::ImportPrivateName) {
                pylint::rules::import_private_name(checker, scope);
--- a/crates/ruff_linter/src/checkers/ast/analyze/expression.rs
+++ b/crates/ruff_linter/src/checkers/ast/analyze/expression.rs
@@ -8,7 +8,7 @@ use ruff_text_size::Ranged;

 use crate::checkers::ast::Checker;
 use crate::preview::{
-    is_optional_as_none_in_union_enabled, is_unnecessary_default_type_args_stubs_enabled,
+    is_assert_raises_exception_call_enabled, is_optional_as_none_in_union_enabled,
 };
 use crate::registry::Rule;
 use crate::rules::{
@@ -142,10 +142,7 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
            }

            if checker.is_rule_enabled(Rule::UnnecessaryDefaultTypeArgs) {
-                if checker.target_version() >= PythonVersion::PY313
-                    || is_unnecessary_default_type_args_stubs_enabled(checker.settings())
-                        && checker.semantic().in_stub_file()
-                {
+                if checker.target_version() >= PythonVersion::PY313 {
                    pyupgrade::rules::unnecessary_default_type_args(checker, expr);
                }
            }
@@ -663,9 +660,6 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
            if checker.is_rule_enabled(Rule::BlockingHttpCallInAsyncFunction) {
                flake8_async::rules::blocking_http_call(checker, call);
            }
-            if checker.is_rule_enabled(Rule::BlockingHttpCallHttpxInAsyncFunction) {
-                flake8_async::rules::blocking_http_call_httpx(checker, call);
-            }
            if checker.is_rule_enabled(Rule::BlockingOpenCallInAsyncFunction) {
                flake8_async::rules::blocking_open_call(checker, call);
            }
@@ -676,9 +670,6 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
            ]) {
                flake8_async::rules::blocking_process_invocation(checker, call);
            }
-            if checker.is_rule_enabled(Rule::BlockingInputInAsyncFunction) {
-                flake8_async::rules::blocking_input(checker, call);
-            }
            if checker.is_rule_enabled(Rule::BlockingSleepInAsyncFunction) {
                flake8_async::rules::blocking_sleep(checker, call);
            }
@@ -1048,6 +1039,8 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
                flake8_simplify::rules::zip_dict_keys_and_values(checker, call);
            }
            if checker.any_rule_enabled(&[
+                Rule::OsMkdir,
+                Rule::OsMakedirs,
                Rule::OsStat,
                Rule::OsPathJoin,
                Rule::OsPathSplitext,
@@ -1055,6 +1048,7 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
                Rule::PyPath,
                Rule::Glob,
                Rule::OsListdir,
+                Rule::OsSymlink,
            ]) {
                flake8_use_pathlib::rules::replaceable_by_pathlib(checker, call);
            }
@@ -1126,15 +1120,6 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
                if checker.is_rule_enabled(Rule::OsPathSamefile) {
                    flake8_use_pathlib::rules::os_path_samefile(checker, call, segments);
                }
-                if checker.is_rule_enabled(Rule::OsMkdir) {
-                    flake8_use_pathlib::rules::os_mkdir(checker, call, segments);
-                }
-                if checker.is_rule_enabled(Rule::OsMakedirs) {
-                    flake8_use_pathlib::rules::os_makedirs(checker, call, segments);
-                }
-                if checker.is_rule_enabled(Rule::OsSymlink) {
-                    flake8_use_pathlib::rules::os_symlink(checker, call, segments);
-                }
                if checker.is_rule_enabled(Rule::PathConstructorCurrentDirectory) {
                    flake8_use_pathlib::rules::path_constructor_current_directory(
                        checker, call, segments,
@@ -1295,7 +1280,9 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
            if checker.is_rule_enabled(Rule::NonOctalPermissions) {
                ruff::rules::non_octal_permissions(checker, call);
            }
-            if checker.is_rule_enabled(Rule::AssertRaisesException) {
+            if checker.is_rule_enabled(Rule::AssertRaisesException)
+                && is_assert_raises_exception_call_enabled(checker.settings())
+            {
                flake8_bugbear::rules::assert_raises_exception_call(checker, call);
            }
        }
@@ -1320,10 +1307,13 @@ pub(crate) fn expression(expr: &Expr, checker: &Checker) {
                pylint::rules::yield_in_init(checker, expr);
            }
        }
-        Expr::YieldFrom(_) => {
+        Expr::YieldFrom(yield_from) => {
            if checker.is_rule_enabled(Rule::YieldInInit) {
                pylint::rules::yield_in_init(checker, expr);
            }
+            if checker.is_rule_enabled(Rule::YieldFromInAsyncFunction) {
+                pylint::rules::yield_from_in_async_function(checker, yield_from);
+            }
        }
        Expr::FString(f_string_expr @ ast::ExprFString { value, .. }) => {
            if checker.is_rule_enabled(Rule::FStringMissingPlaceholders) {
--- a/crates/ruff_linter/src/checkers/ast/analyze/statement.rs
+++ b/crates/ruff_linter/src/checkers/ast/analyze/statement.rs
@@ -728,6 +728,13 @@ pub(crate) fn statement(stmt: &Stmt, checker: &mut Checker) {
                    pylint::rules::non_ascii_module_import(checker, alias);
                }
            }
+            if checker.is_rule_enabled(Rule::UnnecessaryFutureImport) {
+                if checker.target_version() >= PythonVersion::PY37 {
+                    if let Some("__future__") = module {
+                        pyupgrade::rules::unnecessary_future_import(checker, stmt, names);
+                    }
+                }
+            }
            if checker.is_rule_enabled(Rule::DeprecatedMockImport) {
                pyupgrade::rules::deprecated_mock_import(checker, stmt);
            }
--- a/crates/ruff_linter/src/checkers/ast/mod.rs
+++ b/crates/ruff_linter/src/checkers/ast/mod.rs
@@ -28,7 +28,7 @@ use itertools::Itertools;
 use log::debug;
 use rustc_hash::{FxHashMap, FxHashSet};

-use ruff_db::diagnostic::{Annotation, Diagnostic, IntoDiagnosticMessage, Span};
+use ruff_db::diagnostic::Diagnostic;
 use ruff_diagnostics::{Applicability, Fix, IsolationLevel};
 use ruff_notebook::{CellOffsets, NotebookIndex};
 use ruff_python_ast::helpers::{collect_import_from_member, is_docstring_stmt, to_module_path};
@@ -71,9 +71,7 @@ use crate::registry::Rule;
 use crate::rules::pyflakes::rules::{
    LateFutureImport, ReturnOutsideFunction, YieldOutsideFunction,
 };
-use crate::rules::pylint::rules::{
-    AwaitOutsideAsync, LoadBeforeGlobalDeclaration, YieldFromInAsyncFunction,
-};
+use crate::rules::pylint::rules::{AwaitOutsideAsync, LoadBeforeGlobalDeclaration};
 use crate::rules::{flake8_pyi, flake8_type_checking, pyflakes, pyupgrade};
 use crate::settings::rule_table::RuleTable;
 use crate::settings::{LinterSettings, TargetVersion, flags};
@@ -670,12 +668,6 @@ impl SemanticSyntaxContext for Checker<'_> {
                    self.report_diagnostic(AwaitOutsideAsync, error.range);
                }
            }
-            SemanticSyntaxErrorKind::YieldFromInAsyncFunction => {
-                // PLE1700
-                if self.is_rule_enabled(Rule::YieldFromInAsyncFunction) {
-                    self.report_diagnostic(YieldFromInAsyncFunction, error.range);
-                }
-            }
            SemanticSyntaxErrorKind::ReboundComprehensionVariable
            | SemanticSyntaxErrorKind::DuplicateTypeParameter
            | SemanticSyntaxErrorKind::MultipleCaseAssignment(_)
@@ -692,7 +684,8 @@ impl SemanticSyntaxContext for Checker<'_> {
            | SemanticSyntaxErrorKind::LoadBeforeNonlocalDeclaration { .. }
            | SemanticSyntaxErrorKind::NonlocalAndGlobal(_)
            | SemanticSyntaxErrorKind::AnnotatedGlobal(_)
-            | SemanticSyntaxErrorKind::AnnotatedNonlocal(_) => {
+            | SemanticSyntaxErrorKind::AnnotatedNonlocal(_)
+            | SemanticSyntaxErrorKind::NoBindingForNonlocal(_) => {
                self.semantic_errors.borrow_mut().push(error);
            }
        }
@@ -711,10 +704,7 @@ impl SemanticSyntaxContext for Checker<'_> {
            match scope.kind {
                ScopeKind::Class(_) | ScopeKind::Lambda(_) => return false,
                ScopeKind::Function(ast::StmtFunctionDef { is_async, .. }) => return *is_async,
-                ScopeKind::Generator { .. }
-                | ScopeKind::Module
-                | ScopeKind::Type
-                | ScopeKind::DunderClassCell => {}
+                ScopeKind::Generator { .. } | ScopeKind::Module | ScopeKind::Type => {}
            }
        }
        false
@@ -725,10 +715,7 @@ impl SemanticSyntaxContext for Checker<'_> {
            match scope.kind {
                ScopeKind::Class(_) => return false,
                ScopeKind::Function(_) | ScopeKind::Lambda(_) => return true,
-                ScopeKind::Generator { .. }
-                | ScopeKind::Module
-                | ScopeKind::Type
-                | ScopeKind::DunderClassCell => {}
+                ScopeKind::Generator { .. } | ScopeKind::Module | ScopeKind::Type => {}
            }
        }
        false
@@ -739,7 +726,7 @@ impl SemanticSyntaxContext for Checker<'_> {
            match scope.kind {
                ScopeKind::Class(_) | ScopeKind::Generator { .. } => return false,
                ScopeKind::Function(_) | ScopeKind::Lambda(_) => return true,
-                ScopeKind::Module | ScopeKind::Type | ScopeKind::DunderClassCell => {}
+                ScopeKind::Module | ScopeKind::Type => {}
            }
        }
        false
@@ -1106,24 +1093,6 @@ impl<'a> Visitor<'a> for Checker<'a> {
                    }
                }

-                // Here we add the implicit scope surrounding a method which allows code in the
-                // method to access `__class__` at runtime. See the `ScopeKind::DunderClassCell`
-                // docs for more information.
-                let added_dunder_class_scope = if self.semantic.current_scope().kind.is_class() {
-                    self.semantic.push_scope(ScopeKind::DunderClassCell);
-                    let binding_id = self.semantic.push_binding(
-                        TextRange::default(),
-                        BindingKind::DunderClassCell,
-                        BindingFlags::empty(),
-                    );
-                    self.semantic
-                        .current_scope_mut()
-                        .add("__class__", binding_id);
-                    true
-                } else {
-                    false
-                };
-
                self.semantic.push_scope(ScopeKind::Type);

                if let Some(type_params) = type_params {
@@ -1187,9 +1156,6 @@ impl<'a> Visitor<'a> for Checker<'a> {
                self.semantic.pop_scope(); // Function scope
                self.semantic.pop_definition();
                self.semantic.pop_scope(); // Type parameter scope
-                if added_dunder_class_scope {
-                    self.semantic.pop_scope(); // `__class__` cell closure scope
-                }
                self.add_binding(
                    name,
                    stmt.identifier(),
@@ -3340,17 +3306,6 @@ impl DiagnosticGuard<'_, '_> {
            Err(err) => log::debug!("Failed to create fix for {}: {}", self.name(), err),
        }
    }
-
-    /// Add a secondary annotation with the given message and range.
-    pub(crate) fn secondary_annotation<'a>(
-        &mut self,
-        message: impl IntoDiagnosticMessage + 'a,
-        range: impl Ranged,
-    ) {
-        let span = Span::from(self.context.source_file.clone()).with_range(range.range());
-        let ann = Annotation::secondary(span).message(message);
-        self.diagnostic.as_mut().unwrap().annotate(ann);
-    }
 }

 impl std::ops::Deref for DiagnosticGuard<'_, '_> {
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Jack O'Connor	abe6a36c80	don't do nested bindings inference if we have a declared type	2025-08-08 15:54:56 -07:00
Jack O'Connor	b82bbcd51c	stop tracking implicit (read-only) free variables	2025-08-08 13:22:01 -07:00
Jack O'Connor	56e550176c	addressing some of Micha's comments	2025-08-08 09:05:50 -07:00
Jack O'Connor	a6569ed960	[ty] add nested bindings to the semantic index	2025-08-07 20:39:10 -07:00