minimize more

propagate impossible deeply
keep all minimizations
2025-10-17 16:23:47 -04:00 · 2025-10-17 16:23:46 -04:00 · 2025-10-17 16:23:46 -04:00 · 2025-10-17 16:23:46 -04:00 · 2025-10-17 16:23:46 -04:00 · 2025-10-17 16:23:46 -04:00
1439 changed files with 13401 additions and 38345 deletions
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -8,3 +8,7 @@ benchmark = "bench -p ruff_benchmark --bench linter --bench formatter --"
 # See: https://github.com/astral-sh/ruff/issues/11503
 [target.'cfg(all(target_env="msvc", target_os = "windows"))']
 rustflags = ["-C", "target-feature=+crt-static"]
+
+[target.'wasm32-unknown-unknown']
+# See https://docs.rs/getrandom/latest/getrandom/#webassembly-support
+rustflags = ["--cfg", 'getrandom_backend="wasm_js"']
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -22,7 +22,7 @@ env:
  CARGO_TERM_COLOR: always
  RUSTUP_MAX_RETRIES: 10
  PACKAGE_NAME: ruff
-  PYTHON_VERSION: "3.14"
+  PYTHON_VERSION: "3.13"
  NEXTEST_PROFILE: ci

 jobs:
@@ -231,8 +231,6 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: |
          rustup component add clippy
@@ -253,23 +251,20 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          shared-key: ruff-linux-debug
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-nextest
      - name: "Install cargo insta"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-insta
      - name: "Install uv"
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
        with:
          enable-cache: "true"
      - name: ty mdtests (GitHub annotations)
@@ -282,8 +277,7 @@ jobs:
        run: cargo test -p ty_python_semantic --test mdtest || true
      - name: "Run tests"
        run: cargo insta test --all-features --unreferenced reject --test-runner nextest
-      - name: Dogfood ty on py-fuzzer
-        run: uv run --project=./python/py-fuzzer cargo run -p ty check --project=./python/py-fuzzer
+
      # Check for broken links in the documentation.
      - run: cargo doc --all --no-deps
        env:
@@ -296,6 +290,14 @@ jobs:
        env:
          # Setting RUSTDOCFLAGS because `cargo doc --check` isn't yet implemented (https://github.com/rust-lang/cargo/issues/10025).
          RUSTDOCFLAGS: "-D warnings"
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: ruff
+          path: target/debug/ruff
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: ty
+          path: target/debug/ty

  cargo-test-linux-release:
    name: "cargo test (linux, release)"
@@ -312,35 +314,28 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-nextest
      - name: "Install cargo insta"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-insta
      - name: "Install uv"
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
        with:
          enable-cache: "true"
      - name: "Run tests"
        run: cargo insta test --release --all-features --unreferenced reject --test-runner nextest

-  cargo-test-other:
-    strategy:
-      matrix:
-        platform:
-          - ${{ github.repository == 'astral-sh/ruff' && 'depot-windows-2022-16' || 'windows-latest' }}
-          - macos-latest
-    name: "cargo test (${{ matrix.platform }})"
-    runs-on: ${{ matrix.platform }}
+  cargo-test-windows:
+    name: "cargo test (windows)"
+    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-windows-2022-16' || 'windows-latest' }}
    needs: determine_changes
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
    timeout-minutes: 20
@@ -349,16 +344,45 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install cargo nextest"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-nextest
      - name: "Install uv"
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
+        with:
+          enable-cache: "true"
+      - name: "Run tests"
+        env:
+          # Workaround for <https://github.com/nextest-rs/nextest/issues/1493>.
+          RUSTUP_WINDOWS_PATH_ADD_BIN: 1
+        run: |
+          cargo nextest run --all-features --profile ci
+          cargo test --all-features --doc
+
+  cargo-test-macos:
+    name: "cargo test (macos)"
+    runs-on: macos-latest
+    needs: determine_changes
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - name: "Install Rust toolchain"
+        run: rustup show
+      - name: "Install mold"
+        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+      - name: "Install cargo nextest"
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
+        with:
+          tool: cargo-nextest
+      - name: "Install uv"
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
        with:
          enable-cache: "true"
      - name: "Run tests"
@@ -377,11 +401,9 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version: 22
          cache: "npm"
@@ -414,8 +436,6 @@ jobs:
          file: "Cargo.toml"
          field: "workspace.package.rust-version"
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        env:
          MSRV: ${{ steps.msrv.outputs.value }}
@@ -440,13 +460,10 @@ jobs:
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
        with:
          workspaces: "fuzz -> target"
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
      - name: "Install cargo-binstall"
-        uses: cargo-bins/cargo-binstall@ae04fb5e853ae6cd3ad7de4a1d554a8b646d12aa # v1.15.11
+        uses: cargo-bins/cargo-binstall@a66119fbb1c952daba62640c2609111fe0803621 # v1.15.7
      - 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
@@ -455,7 +472,9 @@ jobs:
  fuzz-parser:
    name: "fuzz parser"
    runs-on: ubuntu-latest
-    needs: determine_changes
+    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') }}
    timeout-minutes: 20
    env:
@@ -464,24 +483,26 @@ jobs:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
+      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        name: Download Ruff binary to test
+        id: download-cached-binary
        with:
-          shared-key: ruff-linux-debug
-          save-if: false
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: Build Ruff binary
-        run: cargo build --bin ruff
+          name: ruff
+          path: ruff-to-test
      - name: Fuzz
+        env:
+          DOWNLOAD_PATH: ${{ steps.download-cached-binary.outputs.download-path }}
        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x "${DOWNLOAD_PATH}/ruff"
+
          (
-            uv run \
+            uvx \
            --python="${PYTHON_VERSION}" \
-            --project=./python/py-fuzzer \
-            --locked \
+            --from=./python/py-fuzzer \
            fuzz \
-            --test-executable=target/debug/ruff \
+            --test-executable="${DOWNLOAD_PATH}/ruff" \
            --bin=ruff \
            0-500
          )
@@ -497,9 +518,6 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
      - name: "Install Rust toolchain"
        run: rustup component add rustfmt
      # Run all code generation scripts, and verify that the current output is
@@ -514,16 +532,13 @@ jobs:
          ./scripts/add_plugin.py test --url https://pypi.org/project/-test/0.1.0/ --prefix TST
          ./scripts/add_rule.py --name FirstRule --prefix TST --code 001 --linter test
      - run: cargo check
-      # Lint/format/type-check py-fuzzer
-      # (dogfooding with ty is done in a separate job)
-      - run: uv run --directory=./python/py-fuzzer mypy
-      - run: uv run --directory=./python/py-fuzzer ruff format --check
-      - run: uv run --directory=./python/py-fuzzer ruff check

  ecosystem:
    name: "ecosystem"
    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-latest-8' || 'ubuntu-latest' }}
-    needs: determine_changes
+    needs:
+      - 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.
    # Ecosystem check needs linter and/or formatter changes.
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && github.event_name == 'pull_request' && needs.determine_changes.outputs.code == 'true' }}
@@ -531,49 +546,42 @@ jobs:
    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
-          ref: ${{ github.event.pull_request.base.ref }}
          persist-credentials: false
-
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
        with:
          python-version: ${{ env.PYTHON_VERSION }}
-          activate-environment: true

-      - name: "Install Rust toolchain"
-        run: rustup show
-
-      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
-
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        name: Download comparison Ruff binary
+        id: ruff-target
        with:
-          shared-key: ruff-linux-debug
-          save-if: false
+          name: ruff
+          path: target/debug

-      - name: Build baseline version
-        run: |
-          cargo build --bin ruff
-          mv target/debug/ruff target/debug/ruff-baseline
-
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download baseline Ruff binary
        with:
-          persist-credentials: false
-          clean: false
-
-      - name: Build comparison version
-        run: cargo build --bin ruff
+          name: ruff
+          branch: ${{ github.event.pull_request.base.ref }}
+          workflow: "ci.yaml"
+          check_artifacts: true

      - name: Install ruff-ecosystem
        run: |
-          uv pip install ./python/ruff-ecosystem
+          pip install ./python/ruff-ecosystem

      - name: Run `ruff check` stable ecosystem check
        if: ${{ needs.determine_changes.outputs.linter == 'true' }}
+        env:
+          DOWNLOAD_PATH: ${{ steps.ruff-target.outputs.download-path }}
        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x ./ruff "${DOWNLOAD_PATH}/ruff"
+
          # Set pipefail to avoid hiding errors with tee
          set -eo pipefail

-          ruff-ecosystem check ./target/debug/ruff-baseline ./target/debug/ruff --cache ./checkouts --output-format markdown | tee ecosystem-result-check-stable
+          ruff-ecosystem check ./ruff "${DOWNLOAD_PATH}/ruff" --cache ./checkouts --output-format markdown | tee ecosystem-result-check-stable

          cat ecosystem-result-check-stable > "$GITHUB_STEP_SUMMARY"
          echo "### Linter (stable)"  > ecosystem-result
@@ -582,11 +590,16 @@ jobs:

      - name: Run `ruff check` preview ecosystem check
        if: ${{ needs.determine_changes.outputs.linter == 'true' }}
+        env:
+          DOWNLOAD_PATH: ${{ steps.ruff-target.outputs.download-path }}
        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x ./ruff "${DOWNLOAD_PATH}/ruff"
+
          # Set pipefail to avoid hiding errors with tee
          set -eo pipefail

-          ruff-ecosystem check ./target/debug/ruff-baseline ./target/debug/ruff --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-check-preview
+          ruff-ecosystem check ./ruff "${DOWNLOAD_PATH}/ruff" --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-check-preview

          cat ecosystem-result-check-preview > "$GITHUB_STEP_SUMMARY"
          echo "### Linter (preview)" >> ecosystem-result
@@ -595,11 +608,16 @@ jobs:

      - name: Run `ruff format` stable ecosystem check
        if: ${{ needs.determine_changes.outputs.formatter == 'true' }}
+        env:
+          DOWNLOAD_PATH: ${{ steps.ruff-target.outputs.download-path }}
        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x ./ruff "${DOWNLOAD_PATH}/ruff"
+
          # Set pipefail to avoid hiding errors with tee
          set -eo pipefail

-          ruff-ecosystem format ./target/debug/ruff-baseline ./target/debug/ruff --cache ./checkouts --output-format markdown | tee ecosystem-result-format-stable
+          ruff-ecosystem format ./ruff "${DOWNLOAD_PATH}/ruff" --cache ./checkouts --output-format markdown | tee ecosystem-result-format-stable

          cat ecosystem-result-format-stable > "$GITHUB_STEP_SUMMARY"
          echo "### Formatter (stable)" >> ecosystem-result
@@ -608,19 +626,32 @@ jobs:

      - name: Run `ruff format` preview ecosystem check
        if: ${{ needs.determine_changes.outputs.formatter == 'true' }}
+        env:
+          DOWNLOAD_PATH: ${{ steps.ruff-target.outputs.download-path }}
        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x ./ruff "${DOWNLOAD_PATH}/ruff"
+
          # Set pipefail to avoid hiding errors with tee
          set -eo pipefail

-          ruff-ecosystem format ./target/debug/ruff-baseline ./target/debug/ruff --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-format-preview
+          ruff-ecosystem format ./ruff "${DOWNLOAD_PATH}/ruff" --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-format-preview

          cat ecosystem-result-format-preview > "$GITHUB_STEP_SUMMARY"
          echo "### Formatter (preview)" >> ecosystem-result
          cat ecosystem-result-format-preview >> ecosystem-result
          echo "" >> ecosystem-result

-      # NOTE: astral-sh-bot uses this artifact to post comments on PRs.
-      # Make sure to update the bot if you rename the artifact.
+      - name: Export pull request number
+        run: |
+          echo ${{ github.event.number }} > pr-number
+
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        name: Upload PR Number
+        with:
+          name: pr-number
+          path: pr-number
+
      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        name: Upload Results
        with:
@@ -631,50 +662,47 @@ jobs:
    name: "Fuzz for new ty panics"
    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-16' || 'ubuntu-latest' }}
    needs:
+      - 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') }}
-    timeout-minutes: ${{ github.repository == 'astral-sh/ruff' && 10 || 20 }}
+    timeout-minutes: 5
    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
-          fetch-depth: 0
          persist-credentials: false
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        name: Download new ty binary
+        id: ty-new
        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - name: "Install Rust toolchain"
-        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
+          name: ty
+          path: target/debug
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download baseline ty binary
+        with:
+          name: ty
+          branch: ${{ github.event.pull_request.base.ref }}
+          workflow: "ci.yaml"
+          check_artifacts: true
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - name: Fuzz
        env:
          FORCE_COLOR: 1
+          NEW_TY: ${{ steps.ty-new.outputs.download-path }}
        run: |
-          echo "new commit"
-          git rev-list --format=%s --max-count=1 "$GITHUB_SHA"
-          cargo build --profile=profiling --bin=ty
-          mv target/profiling/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 --profile=profiling --bin=ty
-          mv target/profiling/ty ty-old
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x "${PWD}/ty" "${NEW_TY}/ty"

          (
-            uv run \
+            uvx \
            --python="${PYTHON_VERSION}" \
-            --project=./python/py-fuzzer \
-            --locked \
+            --from=./python/py-fuzzer \
            fuzz \
-            --test-executable=ty-new \
-            --baseline-executable=ty-old \
+            --test-executable="${NEW_TY}/ty" \
+            --baseline-executable="${PWD}/ty" \
            --only-new-bugs \
            --bin=ty \
-            0-1000
+            0-500
          )

  cargo-shear:
@@ -686,7 +714,7 @@ jobs:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
-      - uses: cargo-bins/cargo-binstall@ae04fb5e853ae6cd3ad7de4a1d554a8b646d12aa # v1.15.11
+      - uses: cargo-bins/cargo-binstall@a66119fbb1c952daba62640c2609111fe0803621 # v1.15.7
      - run: cargo binstall --no-confirm cargo-shear
      - run: cargo shear

@@ -699,16 +727,12 @@ jobs:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
      - name: "Run ty completion evaluation"
-        run: cargo run --profile profiling --package ty_completion_eval -- all --threshold 0.4 --tasks /tmp/completion-evaluation-tasks.csv
+        run: cargo run --release --package ty_completion_eval -- all --threshold 0.4 --tasks /tmp/completion-evaluation-tasks.csv
      - name: "Ensure there are no changes"
        run: diff ./crates/ty_completion_eval/completion-evaluation-tasks.csv /tmp/completion-evaluation-tasks.csv

@@ -726,8 +750,6 @@ jobs:
          python-version: ${{ env.PYTHON_VERSION }}
          architecture: x64
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Prep README.md"
        run: python scripts/transform_readme.py --target pypi
      - name: "Build wheels"
@@ -750,11 +772,9 @@ jobs:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version: 22
      - name: "Cache pre-commit"
@@ -783,9 +803,10 @@ jobs:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
+          python-version: "3.13"
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
      - name: "Add SSH key"
        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
        uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
@@ -794,16 +815,13 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup show
      - name: Install uv
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
-        with:
-          python-version: 3.13
-          activate-environment: true
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - name: "Install Insiders dependencies"
        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS == 'true' }}
-        run: uv pip install -r docs/requirements-insiders.txt
+        run: uv pip install -r docs/requirements-insiders.txt --system
      - name: "Install dependencies"
        if: ${{ env.MKDOCS_INSIDERS_SSH_KEY_EXISTS != 'true' }}
-        run: uv pip install -r docs/requirements.txt
+        run: uv pip install -r docs/requirements.txt --system
      - name: "Update README File"
        run: python scripts/transform_readme.py --target mkdocs
      - name: "Generate docs"
@@ -828,8 +846,6 @@ jobs:
        with:
          persist-credentials: false
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Run checks"
@@ -843,7 +859,9 @@ jobs:
    name: "test ruff-lsp"
    runs-on: ubuntu-latest
    timeout-minutes: 5
-    needs: determine_changes
+    needs:
+      - cargo-test-linux
+      - determine_changes
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
    steps:
      - uses: extractions/setup-just@e33e0265a09d6d736e2ee1e0eb685ef1de4669ff # v3.0.0
@@ -851,46 +869,37 @@ jobs:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        name: "Checkout ruff source"
-        with:
-          persist-credentials: false
-
-      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          shared-key: ruff-linux-debug
-          save-if: false
-
-      - name: "Install Rust toolchain"
-        run: rustup show
-
-      - name: Build Ruff binary
-        run: cargo build -p ruff --bin ruff
-
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        name: "Checkout ruff-lsp source"
+        name: "Download ruff-lsp source"
        with:
          persist-credentials: false
          repository: "astral-sh/ruff-lsp"
-          path: ruff-lsp

      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
        with:
          # installation fails on 3.13 and newer
          python-version: "3.12"

+      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
+        name: Download development ruff binary
+        id: ruff-target
+        with:
+          name: ruff
+          path: target/debug
+
      - name: Install ruff-lsp dependencies
        run: |
-          cd ruff-lsp
          just install

      - name: Run ruff-lsp tests
+        env:
+          DOWNLOAD_PATH: ${{ steps.ruff-target.outputs.download-path }}
        run: |
          # Setup development binary
          pip uninstall --yes ruff
-          export PATH="${PWD}/target/debug:${PATH}"
+          chmod +x "${DOWNLOAD_PATH}/ruff"
+          export PATH="${DOWNLOAD_PATH}:${PATH}"
          ruff version

-          cd ruff-lsp
          just test

  check-playground:
@@ -907,9 +916,7 @@ jobs:
      - name: "Install Rust toolchain"
        run: rustup target add wasm32-unknown-unknown
      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version: 22
          cache: "npm"
@@ -947,23 +954,21 @@ jobs:
          persist-credentials: false

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - name: "Install Rust toolchain"
        run: rustup show

      - name: "Install codspeed"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-codspeed

      - name: "Build benchmarks"
-        run: cargo codspeed build --features "codspeed,instrumented" --profile profiling --no-default-features -p ruff_benchmark --bench formatter --bench lexer --bench linter --bench parser
+        run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark --bench formatter --bench lexer --bench linter --bench parser

      - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@bb005fe1c1eea036d3894f02c049cb6b154a1c27 # v4.3.3
+        uses: CodSpeedHQ/action@6b43a0cd438f6ca5ad26f9ed03ed159ed2df7da9 # v4.1.1
        with:
          mode: instrumentation
          run: cargo codspeed run
@@ -987,23 +992,21 @@ jobs:
          persist-credentials: false

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - name: "Install Rust toolchain"
        run: rustup show

      - name: "Install codspeed"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-codspeed

      - name: "Build benchmarks"
-        run: cargo codspeed build --features "codspeed,instrumented" --profile profiling --no-default-features -p ruff_benchmark --bench ty
+        run: cargo codspeed build --features "codspeed,instrumented" --no-default-features -p ruff_benchmark --bench ty

      - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@bb005fe1c1eea036d3894f02c049cb6b154a1c27 # v4.3.3
+        uses: CodSpeedHQ/action@6b43a0cd438f6ca5ad26f9ed03ed159ed2df7da9 # v4.1.1
        with:
          mode: instrumentation
          run: cargo codspeed run
@@ -1027,23 +1030,21 @@ jobs:
          persist-credentials: false

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
-        with:
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - name: "Install Rust toolchain"
        run: rustup show

      - name: "Install codspeed"
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-codspeed

      - name: "Build benchmarks"
-        run: cargo codspeed build --features "codspeed,walltime" --profile profiling --no-default-features -p ruff_benchmark
+        run: cargo codspeed build --features "codspeed,walltime" --no-default-features -p ruff_benchmark

      - name: "Run benchmarks"
-        uses: CodSpeedHQ/action@bb005fe1c1eea036d3894f02c049cb6b154a1c27 # v4.3.3
+        uses: CodSpeedHQ/action@6b43a0cd438f6ca5ad26f9ed03ed159ed2df7da9 # v4.1.1
        env:
          # enabling walltime flamegraphs adds ~6 minutes to the CI time, and they don't
          # appear to provide much useful insight for our walltime benchmarks right now
--- a/.github/workflows/daily_fuzz.yaml
+++ b/.github/workflows/daily_fuzz.yaml
@@ -34,7 +34,7 @@ jobs:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - name: "Install Rust toolchain"
        run: rustup show
      - name: "Install mold"
@@ -48,10 +48,9 @@ jobs:
        run: |
          # shellcheck disable=SC2046
          (
-            uv run \
-            --python=3.14 \
-            --project=./python/py-fuzzer \
-            --locked \
+            uvx \
+            --python=3.12 \
+            --from=./python/py-fuzzer \
            fuzz \
            --test-executable=target/debug/ruff \
            --bin=ruff \
--- a/.github/workflows/mypy_primer.yaml
+++ b/.github/workflows/mypy_primer.yaml
@@ -43,7 +43,7 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
        with:
@@ -59,15 +59,20 @@ jobs:
        run: |
          cd ruff
          scripts/mypy_primer.sh
+          echo ${{ github.event.number }} > ../pr-number

-      # NOTE: astral-sh-bot uses this artifact to post comments on PRs.
-      # Make sure to update the bot if you rename the artifact.
      - name: Upload diff
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: mypy_primer_diff
          path: mypy_primer.diff

+      - name: Upload pr-number
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: pr-number
+          path: pr-number
+
  memory_usage:
    name: Run memory statistics
    runs-on: ${{ github.repository == 'astral-sh/ruff' && 'depot-ubuntu-22.04-32' || 'ubuntu-latest' }}
@@ -80,7 +85,7 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
        with:
--- a/.github/workflows/mypy_primer_comment.yaml
+++ b/.github/workflows/mypy_primer_comment.yaml
@@ -0,0 +1,122 @@
+name: PR comment (mypy_primer)
+
+on: # zizmor: ignore[dangerous-triggers]
+  workflow_run:
+    workflows: [Run mypy_primer]
+    types: [completed]
+  workflow_dispatch:
+    inputs:
+      workflow_run_id:
+        description: The mypy_primer workflow that triggers the workflow run
+        required: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-24.04
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download PR number
+        with:
+          name: pr-number
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Parse pull request number
+        id: pr-number
+        run: |
+          if [[ -f pr-number ]]
+          then
+            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+          fi
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download mypy_primer results"
+        id: download-mypy_primer_diff
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: mypy_primer_diff
+          workflow: mypy_primer.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/mypy_primer_diff
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download mypy_primer memory results"
+        id: download-mypy_primer_memory_diff
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: mypy_primer_memory_diff
+          workflow: mypy_primer.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/mypy_primer_memory_diff
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Generate comment content
+        id: generate-comment
+        if: ${{ steps.download-mypy_primer_diff.outputs.found_artifact == 'true' && steps.download-mypy_primer_memory_diff.outputs.found_artifact == 'true' }}
+        run: |
+          # Guard against malicious mypy_primer results that symlink to a secret
+          # file on this runner
+          if [[ -L pr/mypy_primer_diff/mypy_primer.diff ]] || [[ -L pr/mypy_primer_memory_diff/mypy_primer_memory.diff ]]
+          then
+              echo "Error: mypy_primer.diff and mypy_primer_memory.diff cannot be a symlink"
+              exit 1
+          fi
+
+          # Note this identifier is used to find the comment to update on
+          # subsequent runs
+          echo '<!-- generated-comment mypy_primer -->' >> comment.txt
+
+          echo '## `mypy_primer` results' >> comment.txt
+          if [ -s "pr/mypy_primer_diff/mypy_primer.diff" ]; then
+            echo '<details>' >> comment.txt
+            echo '<summary>Changes were detected when running on open source projects</summary>' >> comment.txt
+            echo '' >> comment.txt
+            echo '```diff' >> comment.txt
+            cat pr/mypy_primer_diff/mypy_primer.diff >> comment.txt
+            echo '```' >> comment.txt
+            echo '</details>' >> comment.txt
+          else
+            echo 'No ecosystem changes detected ✅' >> comment.txt
+          fi
+
+          if [ -s "pr/mypy_primer_memory_diff/mypy_primer_memory.diff" ]; then
+            echo '<details>' >> comment.txt
+            echo '<summary>Memory usage changes were detected when running on open source projects</summary>' >> comment.txt
+            echo '' >> comment.txt
+            echo '```diff' >> comment.txt
+            cat pr/mypy_primer_memory_diff/mypy_primer_memory.diff >> comment.txt
+            echo '```' >> comment.txt
+            echo '</details>' >> comment.txt
+          else
+            echo 'No memory usage changes detected ✅' >> comment.txt
+          fi
+
+          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
+          cat comment.txt >> "$GITHUB_OUTPUT"
+          echo 'EOF' >> "$GITHUB_OUTPUT"
+
+      - name: Find existing comment
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        if: steps.generate-comment.outcome == 'success'
+        id: find-comment
+        with:
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "<!-- generated-comment mypy_primer -->"
+
+      - name: Create or update comment
+        if: steps.find-comment.outcome == 'success'
+        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          body-path: comment.txt
+          edit-mode: replace
--- a/.github/workflows/pr-comment.yaml
+++ b/.github/workflows/pr-comment.yaml
@@ -0,0 +1,88 @@
+name: Ecosystem check comment
+
+on:
+  workflow_run:
+    workflows: [CI]
+    types: [completed]
+  workflow_dispatch:
+    inputs:
+      workflow_run_id:
+        description: The ecosystem workflow that triggers the workflow run
+        required: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download pull request number
+        with:
+          name: pr-number
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Parse pull request number
+        id: pr-number
+        run: |
+          if [[ -f pr-number ]]
+          then
+            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+          fi
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download ecosystem results"
+        id: download-ecosystem-result
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: ecosystem-result
+          workflow: ci.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/ecosystem
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Generate comment content
+        id: generate-comment
+        if: steps.download-ecosystem-result.outputs.found_artifact == 'true'
+        run: |
+          # Guard against malicious ecosystem results that symlink to a secret
+          # file on this runner
+          if [[ -L pr/ecosystem/ecosystem-result ]]
+          then
+              echo "Error: ecosystem-result cannot be a symlink"
+              exit 1
+          fi
+
+          # Note this identifier is used to find the comment to update on
+          # subsequent runs
+          echo '<!-- generated-comment ecosystem -->' >> comment.txt
+
+          echo '## `ruff-ecosystem` results' >> comment.txt
+          cat pr/ecosystem/ecosystem-result >> comment.txt
+          echo "" >> comment.txt
+
+          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
+          cat comment.txt >> "$GITHUB_OUTPUT"
+          echo 'EOF' >> "$GITHUB_OUTPUT"
+
+      - name: Find existing comment
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        if: steps.generate-comment.outcome == 'success'
+        id: find-comment
+        with:
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "<!-- generated-comment ecosystem -->"
+
+      - name: Create or update comment
+        if: steps.find-comment.outcome == 'success'
+        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          body-path: comment.txt
+          edit-mode: replace
--- a/.github/workflows/publish-playground.yml
+++ b/.github/workflows/publish-playground.yml
@@ -18,8 +18,6 @@ env:
  CARGO_TERM_COLOR: always
  RUSTUP_MAX_RETRIES: 10

-permissions: {}
-
 jobs:
  publish:
    runs-on: ubuntu-latest
@@ -31,10 +29,11 @@ jobs:
          persist-credentials: false
      - name: "Install Rust toolchain"
        run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version: 22
-          package-manager-cache: false
+          cache: "npm"
+          cache-dependency-path: playground/package-lock.json
      - uses: jetli/wasm-bindgen-action@20b33e20595891ab1a0ed73145d8a21fc96e7c29 # v0.2.0
      - name: "Install Node dependencies"
        run: npm ci
--- 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@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
        with:
          pattern: wheels-*
--- a/.github/workflows/publish-ty-playground.yml
+++ b/.github/workflows/publish-ty-playground.yml
@@ -35,10 +35,9 @@ jobs:
          persist-credentials: false
      - name: "Install Rust toolchain"
        run: rustup target add wasm32-unknown-unknown
-      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version: 22
-          package-manager-cache: false
      - uses: jetli/wasm-bindgen-action@20b33e20595891ab1a0ed73145d8a21fc96e7c29 # v0.2.0
      - name: "Install Node dependencies"
        run: npm ci
--- a/.github/workflows/publish-wasm.yml
+++ b/.github/workflows/publish-wasm.yml
@@ -45,7 +45,7 @@ jobs:
          jq '.name="@astral-sh/ruff-wasm-${{ matrix.target }}"' crates/ruff_wasm/pkg/package.json > /tmp/package.json
          mv /tmp/package.json crates/ruff_wasm/pkg
      - run: cp LICENSE crates/ruff_wasm/pkg # wasm-pack does not put the LICENSE file in the pkg
-      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
+      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version: 22
          registry-url: "https://registry.npmjs.org"
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,6 +1,7 @@
-# This file was autogenerated by dist: https://axodotdev.github.io/cargo-dist
+# This file was autogenerated by dist: https://github.com/astral-sh/cargo-dist
 #
 # Copyright 2022-2024, axodotdev
+# Copyright 2025 Astral Software Inc.
 # SPDX-License-Identifier: MIT or Apache-2.0
 #
 # CI that:
@@ -68,9 +69,9 @@ jobs:
        # we specify bash to get pipefail; it guards against the `curl` command
        # failing. otherwise `sh` won't catch that `curl` returned non-0
        shell: bash
-        run: "curl --proto '=https' --tlsv1.2 -LsSf https://github.com/axodotdev/cargo-dist/releases/download/v0.30.2/cargo-dist-installer.sh | sh"
+        run: "curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/cargo-dist/releases/download/v0.28.5-prerelease.1/cargo-dist-installer.sh | sh"
      - name: Cache dist
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
        with:
          name: cargo-dist-cache
          path: ~/.cargo/bin/dist
@@ -86,7 +87,7 @@ jobs:
          cat plan-dist-manifest.json
          echo "manifest=$(jq -c "." plan-dist-manifest.json)" >> "$GITHUB_OUTPUT"
      - name: "Upload dist-manifest.json"
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
        with:
          name: artifacts-plan-dist-manifest
          path: plan-dist-manifest.json
@@ -128,14 +129,14 @@ jobs:
          persist-credentials: false
          submodules: recursive
      - name: Install cached dist
-        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
        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@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
        with:
          pattern: artifacts-*
          path: target/distrib/
@@ -153,7 +154,7 @@ jobs:

          cp dist-manifest.json "$BUILD_MANIFEST_NAME"
      - name: "Upload artifacts"
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
        with:
          name: artifacts-build-global
          path: |
@@ -166,8 +167,8 @@ jobs:
      - custom-build-binaries
      - custom-build-docker
      - build-global-artifacts
-    # Only run if we're "publishing", and only if plan, local and global didn't fail (skipped is fine)
-    if: ${{ always() && needs.plan.result == 'success' && needs.plan.outputs.publishing == 'true' && (needs.build-global-artifacts.result == 'skipped' || needs.build-global-artifacts.result == 'success') && (needs.custom-build-binaries.result == 'skipped' || needs.custom-build-binaries.result == 'success') && (needs.custom-build-docker.result == 'skipped' || needs.custom-build-docker.result == 'success') }}
+    # Only run if we're "publishing", and only if local and global didn't fail (skipped is fine)
+    if: ${{ always() && needs.plan.outputs.publishing == 'true' && (needs.build-global-artifacts.result == 'skipped' || needs.build-global-artifacts.result == 'success') && (needs.custom-build-binaries.result == 'skipped' || needs.custom-build-binaries.result == 'success') && (needs.custom-build-docker.result == 'skipped' || needs.custom-build-docker.result == 'success') }}
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    runs-on: "depot-ubuntu-latest-4"
@@ -179,14 +180,14 @@ jobs:
          persist-credentials: false
          submodules: recursive
      - name: Install cached dist
-        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
        with:
          name: cargo-dist-cache
          path: ~/.cargo/bin/
      - run: chmod +x ~/.cargo/bin/dist
      # Fetch artifacts from scratch-storage
      - name: Fetch artifacts
-        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
        with:
          pattern: artifacts-*
          path: target/distrib/
@@ -200,7 +201,7 @@ jobs:
          cat dist-manifest.json
          echo "manifest=$(jq -c "." dist-manifest.json)" >> "$GITHUB_OUTPUT"
      - name: "Upload dist-manifest.json"
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+        uses: actions/upload-artifact@6027e3dd177782cd8ab9af838c04fd81a07f1d47
        with:
          # Overwrite the previous copy
          name: artifacts-dist-manifest
@@ -256,7 +257,7 @@ jobs:
          submodules: recursive
      # Create a GitHub Release while uploading all files to it
      - name: "Download GitHub Artifacts"
-        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
        with:
          pattern: artifacts-*
          path: artifacts
--- a/.github/workflows/sync_typeshed.yaml
+++ b/.github/workflows/sync_typeshed.yaml
@@ -77,7 +77,7 @@ jobs:
        run: |
          git config --global user.name typeshedbot
          git config --global user.email '<>'
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - name: Sync typeshed stubs
        run: |
          rm -rf "ruff/${VENDORED_TYPESHED}"
@@ -131,7 +131,7 @@ jobs:
        with:
          persist-credentials: true
          ref: ${{ env.UPSTREAM_BRANCH}}
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - name: Setup git
        run: |
          git config --global user.name typeshedbot
@@ -170,7 +170,7 @@ jobs:
        with:
          persist-credentials: true
          ref: ${{ env.UPSTREAM_BRANCH}}
-      - uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
      - name: Setup git
        run: |
          git config --global user.name typeshedbot
@@ -207,12 +207,12 @@ jobs:
        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
      - name: "Install cargo nextest"
        if: ${{ success() }}
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-nextest
      - name: "Install cargo insta"
        if: ${{ success() }}
-        uses: taiki-e/install-action@44c6d64aa62cd779e873306675c7a58e86d6d532 # v2.62.49
+        uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
        with:
          tool: cargo-insta
      - name: Update snapshots
--- a/.github/workflows/ty-ecosystem-analyzer.yaml
+++ b/.github/workflows/ty-ecosystem-analyzer.yaml
@@ -33,14 +33,11 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
-        with:
-          enable-cache: true # zizmor: ignore[cache-poisoning] acceptable risk for CloudFlare pages artifact
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
        with:
          workspaces: "ruff"
-          lookup-only: false # zizmor: ignore[cache-poisoning] acceptable risk for CloudFlare pages artifact

      - name: Install Rust toolchain
        run: rustup show
@@ -112,6 +109,8 @@ jobs:

          cat diff-statistics.md >> "$GITHUB_STEP_SUMMARY"

+          echo ${{ github.event.number }} > pr-number
+
      - name: "Deploy to Cloudflare Pages"
        if: ${{ env.CF_API_TOKEN_EXISTS == 'true' }}
        id: deploy
@@ -129,14 +128,18 @@ jobs:
          echo >> comment.md
          echo "**[Full report with detailed diff]($DEPLOYMENT_URL/diff)** ([timing results]($DEPLOYMENT_URL/timing))" >> comment.md

-      # NOTE: astral-sh-bot uses this artifact to post comments on PRs.
-      # Make sure to update the bot if you rename the artifact.
      - name: Upload comment
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: comment.md
          path: comment.md

+      - name: Upload pr-number
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: pr-number
+          path: pr-number
+
      - name: Upload diagnostics diff
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
--- a/.github/workflows/ty-ecosystem-analyzer_comment.yaml
+++ b/.github/workflows/ty-ecosystem-analyzer_comment.yaml
@@ -0,0 +1,85 @@
+name: PR comment (ty ecosystem-analyzer)
+
+on: # zizmor: ignore[dangerous-triggers]
+  workflow_run:
+    workflows: [ty ecosystem-analyzer]
+    types: [completed]
+  workflow_dispatch:
+    inputs:
+      workflow_run_id:
+        description: The ty ecosystem-analyzer workflow that triggers the workflow run
+        required: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-24.04
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download PR number
+        with:
+          name: pr-number
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Parse pull request number
+        id: pr-number
+        run: |
+          if [[ -f pr-number ]]
+          then
+            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+          fi
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download comment.md"
+        id: download-comment
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: comment.md
+          workflow: ty-ecosystem-analyzer.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/comment
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Generate comment content
+        id: generate-comment
+        if: ${{ steps.download-comment.outputs.found_artifact == 'true' }}
+        run: |
+          # Guard against malicious ty ecosystem-analyzer results that symlink to a secret
+          # file on this runner
+          if [[ -L pr/comment/comment.md ]]
+          then
+              echo "Error: comment.md cannot be a symlink"
+              exit 1
+          fi
+
+          # Note: this identifier is used to find the comment to update on subsequent runs
+          echo '<!-- generated-comment ty ecosystem-analyzer -->' > comment.md
+          echo >> comment.md
+          cat pr/comment/comment.md >> comment.md
+
+          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
+          cat comment.md >> "$GITHUB_OUTPUT"
+          echo 'EOF' >> "$GITHUB_OUTPUT"
+
+      - name: Find existing comment
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        if: steps.generate-comment.outcome == 'success'
+        id: find-comment
+        with:
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "<!-- generated-comment ty ecosystem-analyzer -->"
+
+      - name: Create or update comment
+        if: steps.find-comment.outcome == 'success'
+        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          body-path: comment.md
+          edit-mode: replace
--- a/.github/workflows/ty-ecosystem-report.yaml
+++ b/.github/workflows/ty-ecosystem-report.yaml
@@ -29,14 +29,11 @@ jobs:
          persist-credentials: false

      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@85856786d1ce8acfbcc2f13a5f3fbd6b938f9f41 # v7.1.2
-        with:
-          enable-cache: true # zizmor: ignore[cache-poisoning] acceptable risk for CloudFlare pages artifact
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0

      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
        with:
          workspaces: "ruff"
-          lookup-only: false # zizmor: ignore[cache-poisoning] acceptable risk for CloudFlare pages artifact

      - name: Install Rust toolchain
        run: rustup show
--- a/.github/workflows/typing_conformance.yaml
+++ b/.github/workflows/typing_conformance.yaml
@@ -24,7 +24,7 @@ env:
  CARGO_TERM_COLOR: always
  RUSTUP_MAX_RETRIES: 10
  RUST_BACKTRACE: 1
-  CONFORMANCE_SUITE_COMMIT: 9f6d8ced7cd1c8d92687a4e9c96d7716452e471e
+  CONFORMANCE_SUITE_COMMIT: d4f39b27a4a47aac8b6d4019e1b0b5b3156fabdc

 jobs:
  typing_conformance:
@@ -94,18 +94,21 @@ jobs:
            touch typing_conformance_diagnostics.diff
          fi

+          echo ${{ github.event.number }} > pr-number
          echo "${CONFORMANCE_SUITE_COMMIT}" > conformance-suite-commit

-      # NOTE: astral-sh-bot uses this artifact to post comments on PRs.
-      # Make sure to update the bot if you rename the artifact.
      - name: Upload diff
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: typing_conformance_diagnostics_diff
          path: typing_conformance_diagnostics.diff

-      # NOTE: astral-sh-bot uses this artifact to post comments on PRs.
-      # Make sure to update the bot if you rename the artifact.
+      - name: Upload pr-number
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: pr-number
+          path: pr-number
+
      - name: Upload conformance suite commit
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
--- a/.github/workflows/typing_conformance_comment.yaml
+++ b/.github/workflows/typing_conformance_comment.yaml
@@ -0,0 +1,112 @@
+name: PR comment (typing_conformance)
+
+on: # zizmor: ignore[dangerous-triggers]
+  workflow_run:
+    workflows: [Run typing conformance]
+    types: [completed]
+  workflow_dispatch:
+    inputs:
+      workflow_run_id:
+        description: The typing_conformance workflow that triggers the workflow run
+        required: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-24.04
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download PR number
+        with:
+          name: pr-number
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Parse pull request number
+        id: pr-number
+        run: |
+          if [[ -f pr-number ]]
+          then
+            echo "pr-number=$(<pr-number)" >> "$GITHUB_OUTPUT"
+          fi
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: Download typing conformance suite commit
+        with:
+          name: conformance-suite-commit
+          run_id: ${{ github.event.workflow_run.id ||  github.event.inputs.workflow_run_id }}
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - uses: dawidd6/action-download-artifact@20319c5641d495c8a52e688b7dc5fada6c3a9fbc # v8
+        name: "Download typing_conformance results"
+        id: download-typing_conformance_diff
+        if: steps.pr-number.outputs.pr-number
+        with:
+          name: typing_conformance_diagnostics_diff
+          workflow: typing_conformance.yaml
+          pr: ${{ steps.pr-number.outputs.pr-number }}
+          path: pr/typing_conformance_diagnostics_diff
+          workflow_conclusion: completed
+          if_no_artifact_found: ignore
+          allow_forks: true
+
+      - name: Generate comment content
+        id: generate-comment
+        if: ${{ steps.download-typing_conformance_diff.outputs.found_artifact == 'true' }}
+        run: |
+          # Guard against malicious typing_conformance results that symlink to a secret
+          # file on this runner
+          if [[ -L pr/typing_conformance_diagnostics_diff/typing_conformance_diagnostics.diff ]]
+          then
+              echo "Error: typing_conformance_diagnostics.diff cannot be a symlink"
+              exit 1
+          fi
+
+          # Note this identifier is used to find the comment to update on
+          # subsequent runs
+          echo '<!-- generated-comment typing_conformance_diagnostics_diff -->' >> comment.txt
+
+          if [[ -f conformance-suite-commit ]]
+          then
+            echo "## Diagnostic diff on [typing conformance tests](https://github.com/python/typing/tree/$(<conformance-suite-commit)/conformance)" >> comment.txt
+          else
+            echo "conformance-suite-commit file not found"
+            echo "## Diagnostic diff on typing conformance tests" >> comment.txt
+          fi
+
+          if [ -s "pr/typing_conformance_diagnostics_diff/typing_conformance_diagnostics.diff" ]; then
+            echo '<details>' >> comment.txt
+            echo '<summary>Changes were detected when running ty on typing conformance tests</summary>' >> comment.txt
+            echo '' >> comment.txt
+            echo '```diff' >> comment.txt
+            cat pr/typing_conformance_diagnostics_diff/typing_conformance_diagnostics.diff >> comment.txt
+            echo '```' >> comment.txt
+            echo '</details>' >> comment.txt
+          else
+            echo 'No changes detected when running ty on typing conformance tests ✅' >> comment.txt
+          fi
+
+          echo 'comment<<EOF' >> "$GITHUB_OUTPUT"
+          cat comment.txt >> "$GITHUB_OUTPUT"
+          echo 'EOF' >> "$GITHUB_OUTPUT"
+
+      - name: Find existing comment
+        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        if: steps.generate-comment.outcome == 'success'
+        id: find-comment
+        with:
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          comment-author: "github-actions[bot]"
+          body-includes: "<!-- generated-comment typing_conformance_diagnostics_diff -->"
+
+      - name: Create or update comment
+        if: steps.find-comment.outcome == 'success'
+        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        with:
+          comment-id: ${{ steps.find-comment.outputs.comment-id }}
+          issue-number: ${{ steps.pr-number.outputs.pr-number }}
+          body-path: comment.txt
+          edit-mode: replace
--- a/.github/zizmor.yml
+++ b/.github/zizmor.yml
@@ -1,23 +1,21 @@
 # Configuration for the zizmor static analysis tool, run via pre-commit in CI
-# https://docs.zizmor.sh/configuration/
+# https://woodruffw.github.io/zizmor/configuration/
 #
 # TODO: can we remove the ignores here so that our workflows are more secure?
 rules:
+  dangerous-triggers:
+    ignore:
+      - pr-comment.yaml
  cache-poisoning:
    ignore:
      - build-docker.yml
+      - publish-playground.yml
+      - ty-ecosystem-analyzer.yaml
+      - ty-ecosystem-report.yaml
  excessive-permissions:
    # it's hard to test what the impact of removing these ignores would be
    # without actually running the release workflow...
    ignore:
      - build-docker.yml
+      - publish-playground.yml
      - publish-docs.yml
-  secrets-inherit:
-    # `cargo dist` makes extensive use of `secrets: inherit`,
-    # and we can't easily fix that until an upstream release changes that.
-    disable: true
-  template-injection:
-    ignore:
-      # like with `secrets-inherit`, `cargo dist` introduces some
-      # template injections. We've manually audited these usages for safety.
-      - release.yml
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -35,7 +35,6 @@ repos:
    rev: 0.7.22
    hooks:
      - id: mdformat
-        language: python # means renovate will also update `additional_dependencies`
        additional_dependencies:
          - mdformat-mkdocs==4.0.0
          - mdformat-footnote==0.1.1
@@ -59,7 +58,6 @@ repos:
    rev: 1.19.1
    hooks:
      - id: blacken-docs
-        language: python # means renovate will also update `additional_dependencies`
        args: ["--pyi", "--line-length", "130"]
        files: '^crates/.*/resources/mdtest/.*\.md'
        exclude: |
@@ -101,8 +99,8 @@ repos:

  # zizmor detects security vulnerabilities in GitHub Actions workflows.
  # Additional configuration for the tool is found in `.github/zizmor.yml`
-  - repo: https://github.com/zizmorcore/zizmor-pre-commit
-    rev: v1.16.0
+  - repo: https://github.com/woodruffw/zizmor-pre-commit
+    rev: v1.11.0
    hooks:
      - id: zizmor

--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,153 +1,5 @@
 # Changelog

-## 0.14.4
-
-Released on 2025-11-06.
-
-### Preview features
-
- [formatter] Allow newlines after function headers without docstrings ([#21110](https://github.com/astral-sh/ruff/pull/21110))
- [formatter] Avoid extra parentheses for long `match` patterns with `as` captures ([#21176](https://github.com/astral-sh/ruff/pull/21176))
- \[`refurb`\] Expand fix safety for keyword arguments and `Decimal`s (`FURB164`) ([#21259](https://github.com/astral-sh/ruff/pull/21259))
- \[`refurb`\] Preserve argument ordering in autofix (`FURB103`) ([#20790](https://github.com/astral-sh/ruff/pull/20790))
-
-### Bug fixes
-
- [server] Fix missing diagnostics for notebooks ([#21156](https://github.com/astral-sh/ruff/pull/21156))
- \[`flake8-bugbear`\] Ignore non-NFKC attribute names in `B009` and `B010` ([#21131](https://github.com/astral-sh/ruff/pull/21131))
- \[`refurb`\] Fix false negative for underscores before sign in `Decimal` constructor (`FURB157`) ([#21190](https://github.com/astral-sh/ruff/pull/21190))
- \[`ruff`\] Fix false positives on starred arguments (`RUF057`) ([#21256](https://github.com/astral-sh/ruff/pull/21256))
-
-### Rule changes
-
- \[`airflow`\] extend deprecated argument `concurrency` in `airflow..DAG` (`AIR301`) ([#21220](https://github.com/astral-sh/ruff/pull/21220))
-
-### Documentation
-
- Improve `extend` docs ([#21135](https://github.com/astral-sh/ruff/pull/21135))
- \[`flake8-comprehensions`\] Fix typo in `C416` documentation ([#21184](https://github.com/astral-sh/ruff/pull/21184))
- Revise Ruff setup instructions for Zed editor ([#20935](https://github.com/astral-sh/ruff/pull/20935))
-
-### Other changes
-
- Make `ruff analyze graph` work with jupyter notebooks ([#21161](https://github.com/astral-sh/ruff/pull/21161))
-
-### Contributors
-
- [@chirizxc](https://github.com/chirizxc)
- [@Lee-W](https://github.com/Lee-W)
- [@musicinmybrain](https://github.com/musicinmybrain)
- [@MichaReiser](https://github.com/MichaReiser)
- [@tjkuson](https://github.com/tjkuson)
- [@danparizher](https://github.com/danparizher)
- [@renovate](https://github.com/renovate)
- [@ntBre](https://github.com/ntBre)
- [@gauthsvenkat](https://github.com/gauthsvenkat)
- [@LoicRiegel](https://github.com/LoicRiegel)
-
-## 0.14.3
-
-Released on 2025-10-30.
-
-### Preview features
-
- Respect `--output-format` with `--watch` ([#21097](https://github.com/astral-sh/ruff/pull/21097))
- \[`pydoclint`\] Fix false positive on explicit exception re-raising (`DOC501`, `DOC502`) ([#21011](https://github.com/astral-sh/ruff/pull/21011))
- \[`pyflakes`\] Revert to stable behavior if imports for module lie in alternate branches for `F401` ([#20878](https://github.com/astral-sh/ruff/pull/20878))
- \[`pylint`\] Implement `stop-iteration-return` (`PLR1708`) ([#20733](https://github.com/astral-sh/ruff/pull/20733))
- \[`ruff`\] Add support for additional eager conversion patterns (`RUF065`) ([#20657](https://github.com/astral-sh/ruff/pull/20657))
-
-### Bug fixes
-
- Fix finding keyword range for clause header after statement ending with semicolon ([#21067](https://github.com/astral-sh/ruff/pull/21067))
- Fix syntax error false positive on nested alternative patterns ([#21104](https://github.com/astral-sh/ruff/pull/21104))
- \[`ISC001`\] Fix panic when string literals are unclosed ([#21034](https://github.com/astral-sh/ruff/pull/21034))
- \[`flake8-django`\] Apply `DJ001` to annotated fields ([#20907](https://github.com/astral-sh/ruff/pull/20907))
- \[`flake8-pyi`\] Fix `PYI034` to not trigger on metaclasses (`PYI034`) ([#20881](https://github.com/astral-sh/ruff/pull/20881))
- \[`flake8-type-checking`\] Fix `TC003` false positive with `future-annotations` ([#21125](https://github.com/astral-sh/ruff/pull/21125))
- \[`pyflakes`\] Fix false positive for `__class__` in lambda expressions within class definitions (`F821`) ([#20564](https://github.com/astral-sh/ruff/pull/20564))
- \[`pyupgrade`\] Fix false positive for `TypeVar` with default on Python \<3.13 (`UP046`,`UP047`) ([#21045](https://github.com/astral-sh/ruff/pull/21045))
-
-### Rule changes
-
- Add missing docstring sections to the numpy list ([#20931](https://github.com/astral-sh/ruff/pull/20931))
- \[`airflow`\] Extend `airflow.models..Param` check (`AIR311`) ([#21043](https://github.com/astral-sh/ruff/pull/21043))
- \[`airflow`\] Warn that `airflow....DAG.create_dagrun` has been removed (`AIR301`) ([#21093](https://github.com/astral-sh/ruff/pull/21093))
- \[`refurb`\] Preserve digit separators in `Decimal` constructor (`FURB157`) ([#20588](https://github.com/astral-sh/ruff/pull/20588))
-
-### Server
-
- Avoid sending an unnecessary "clear diagnostics" message for clients supporting pull diagnostics ([#21105](https://github.com/astral-sh/ruff/pull/21105))
-
-### Documentation
-
- \[`flake8-bandit`\] Fix correct example for `S308` ([#21128](https://github.com/astral-sh/ruff/pull/21128))
-
-### Other changes
-
- Clearer error message when `line-length` goes beyond threshold ([#21072](https://github.com/astral-sh/ruff/pull/21072))
-
-### Contributors
-
- [@danparizher](https://github.com/danparizher)
- [@jvacek](https://github.com/jvacek)
- [@ntBre](https://github.com/ntBre)
- [@augustelalande](https://github.com/augustelalande)
- [@prakhar1144](https://github.com/prakhar1144)
- [@TaKO8Ki](https://github.com/TaKO8Ki)
- [@dylwil3](https://github.com/dylwil3)
- [@fatelei](https://github.com/fatelei)
- [@ShaharNaveh](https://github.com/ShaharNaveh)
- [@Lee-W](https://github.com/Lee-W)
-
-## 0.14.2
-
-Released on 2025-10-23.
-
-### Preview features
-
- \[`flake8-gettext`\] Resolve qualified names and built-in bindings (`INT001`, `INT002`, `INT003`) ([#19045](https://github.com/astral-sh/ruff/pull/19045))
-
-### Bug fixes
-
- Avoid reusing nested, interpolated quotes before Python 3.12 ([#20930](https://github.com/astral-sh/ruff/pull/20930))
- Catch syntax errors in nested interpolations before Python 3.12 ([#20949](https://github.com/astral-sh/ruff/pull/20949))
- \[`fastapi`\] Handle ellipsis defaults in `FAST002` autofix ([#20810](https://github.com/astral-sh/ruff/pull/20810))
- \[`flake8-simplify`\] Skip `SIM911` when unknown arguments are present ([#20697](https://github.com/astral-sh/ruff/pull/20697))
- \[`pyupgrade`\] Always parenthesize assignment expressions in fix for `f-string` (`UP032`) ([#21003](https://github.com/astral-sh/ruff/pull/21003))
- \[`pyupgrade`\] Fix `UP032` conversion for decimal ints with underscores ([#21022](https://github.com/astral-sh/ruff/pull/21022))
- \[`fastapi`\] Skip autofix for keyword and `__debug__` path params (`FAST003`) ([#20960](https://github.com/astral-sh/ruff/pull/20960))
-
-### Rule changes
-
- \[`flake8-bugbear`\] Skip `B905` and `B912` for fewer than two iterables and no starred arguments ([#20998](https://github.com/astral-sh/ruff/pull/20998))
- \[`ruff`\] Use `DiagnosticTag` for more `pyflakes` and `pandas` rules ([#20801](https://github.com/astral-sh/ruff/pull/20801))
-
-### CLI
-
- Improve JSON output from `ruff rule` ([#20168](https://github.com/astral-sh/ruff/pull/20168))
-
-### Documentation
-
- Add source to testimonial ([#20971](https://github.com/astral-sh/ruff/pull/20971))
- Document when a rule was added ([#21035](https://github.com/astral-sh/ruff/pull/21035))
-
-### Other changes
-
- [syntax-errors] Name is parameter and global ([#20426](https://github.com/astral-sh/ruff/pull/20426))
- [syntax-errors] Alternative `match` patterns bind different names ([#20682](https://github.com/astral-sh/ruff/pull/20682))
-
-### Contributors
-
- [@hengky-kurniawan-1](https://github.com/hengky-kurniawan-1)
- [@ShalokShalom](https://github.com/ShalokShalom)
- [@robsdedude](https://github.com/robsdedude)
- [@LoicRiegel](https://github.com/LoicRiegel)
- [@TaKO8Ki](https://github.com/TaKO8Ki)
- [@dylwil3](https://github.com/dylwil3)
- [@11happy](https://github.com/11happy)
- [@ntBre](https://github.com/ntBre)
-
 ## 0.14.1

 Released on 2025-10-16.
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -280,55 +280,6 @@ Note that plugin-specific configuration options are defined in their own modules

 Finally, regenerate the documentation and generated code with `cargo dev generate-all`.

-### Opening a PR
-
-After you finish your changes, the next step is to open a PR. By default, two
-sections will be filled into the PR body: the summary and the test plan.
-
-#### The summary
-
-The summary is intended to give us as maintainers information about your PR.
-This should typically include a link to the relevant issue(s) you're addressing
-in your PR, as well as a summary of the issue and your approach to fixing it. If
-you have any questions about your approach or design, or if you considered
-alternative approaches, that can also be helpful to include.
-
-AI can be helpful in generating both the code and summary of your PR, but a
-successful contribution should still be carefully reviewed by you and the
-summary editorialized before submitting a PR. A great summary is thorough but
-also succinct and gives us the context we need to review your PR.
-
-You can find examples of excellent issues and PRs by searching for the
-[`great writeup`](https://github.com/astral-sh/ruff/issues?q=label%3A%22great%20writeup%22)
-label.
-
-#### The test plan
-
-The test plan is likely to be shorter than the summary and can be as simple as
-"Added new snapshot tests for `RUF123`," at least for rule bugs. For LSP or some
-types of CLI changes, in particular, it can also be helpful to include
-screenshots or recordings of your change in action.
-
-#### Ecosystem report
-
-After opening the PR, an ecosystem report will be run as part of CI. This shows
-a diff of linter and formatter behavior before and after the changes in your PR.
-Going through these changes and reporting your findings in the PR summary or an
-additional comment help us to review your PR more efficiently. It's also a great
-way to find new test cases to incorporate into your PR if you identify any
-issues.
-
-#### PR status
-
-To help us know when your PR is ready for review again, please either move your
-PR back to a draft while working on it (marking it ready for review afterwards
-will ping the previous reviewers) or explicitly re-request a review. This helps
-us to avoid re-reviewing a PR while you're still working on it and also to
-prioritize PRs that are definitely ready for review.
-
-You can also thumbs-up or mark as resolved any comments we leave to let us know
-you addressed them.
-
 ## MkDocs

 > [!NOTE]
--- 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 = "1.89"
+rust-version = "1.88"
 homepage = "https://docs.astral.sh/ruff"
 documentation = "https://docs.astral.sh/ruff"
 repository = "https://github.com/astral-sh/ruff"
@@ -84,7 +84,7 @@ dashmap = { version = "6.0.1" }
 dir-test = { version = "0.4.0" }
 dunce = { version = "1.0.5" }
 drop_bomb = { version = "0.1.5" }
-etcetera = { version = "0.11.0" }
+etcetera = { version = "0.10.0" }
 fern = { version = "0.7.0" }
 filetime = { version = "0.2.23" }
 getrandom = { version = "0.3.1" }
@@ -103,7 +103,7 @@ hashbrown = { version = "0.16.0", default-features = false, features = [
    "inline-more",
 ] }
 heck = "0.5.0"
-ignore = { version = "0.4.24" }
+ignore = { version = "0.4.22" }
 imara-diff = { version = "0.1.5" }
 imperative = { version = "1.0.4" }
 indexmap = { version = "2.6.0" }
@@ -124,7 +124,7 @@ lsp-server = { version = "0.7.6" }
 lsp-types = { git = "https://github.com/astral-sh/lsp-types.git", rev = "3512a9f", features = [
    "proposed",
 ] }
-matchit = { version = "0.9.0" }
+matchit = { version = "0.8.1" }
 memchr = { version = "2.7.1" }
 mimalloc = { version = "0.1.39" }
 natord = { version = "1.0.9" }
@@ -146,13 +146,13 @@ 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 = "05a9af7f554b64b8aadc2eeb6f2caf73d0408d09", default-features = false, features = [
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "ef9f9329be6923acd050c8dddd172e3bc93e8051", default-features = false, features = [
    "compact_str",
    "macros",
    "salsa_unstable",
    "inventory",
 ] }
-schemars = { version = "1.0.4" }
+schemars = { version = "0.8.16" }
 seahash = { version = "4.1.0" }
 serde = { version = "1.0.197", features = ["derive"] }
 serde-wasm-bindgen = { version = "0.6.4" }
--- a/README.md
+++ b/README.md
@@ -89,7 +89,8 @@ creator of [isort](https://github.com/PyCQA/isort):
 > Just switched my first project to Ruff. Only one downside so far: it's so fast I couldn't believe
 > it was working till I intentionally introduced some errors.

-[**Tim Abbott**](https://github.com/zulip/zulip/pull/23431#issuecomment-1302557034), lead developer of [Zulip](https://github.com/zulip/zulip) (also [here](https://github.com/astral-sh/ruff/issues/465#issuecomment-1317400028)):
+[**Tim Abbott**](https://github.com/astral-sh/ruff/issues/465#issuecomment-1317400028), lead
+developer of [Zulip](https://github.com/zulip/zulip):

 > This is just ridiculously fast... `ruff` is amazing.

@@ -147,8 +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/0.14.4/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.14.4/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.14.1/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.14.1/install.ps1 | iex"
 ```

 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -181,7 +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: v0.14.4
+  rev: v0.14.1
  hooks:
    # Run the linter.
    - id: ruff-check
--- a/crates/ruff/Cargo.toml
+++ b/crates/ruff/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.14.4"
+version = "0.14.1"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }
--- a/crates/ruff/src/args.rs
+++ b/crates/ruff/src/args.rs
@@ -7,8 +7,6 @@ use std::sync::Arc;

 use crate::commands::completions::config::{OptionString, OptionStringParser};
 use anyhow::bail;
-use clap::builder::Styles;
-use clap::builder::styling::{AnsiColor, Effects};
 use clap::builder::{TypedValueParser, ValueParserFactory};
 use clap::{Parser, Subcommand, command};
 use colored::Colorize;
@@ -80,13 +78,6 @@ impl GlobalConfigArgs {
    }
 }

-// Configures Clap v3-style help menu colors
-const STYLES: Styles = Styles::styled()
-    .header(AnsiColor::Green.on_default().effects(Effects::BOLD))
-    .usage(AnsiColor::Green.on_default().effects(Effects::BOLD))
-    .literal(AnsiColor::Cyan.on_default().effects(Effects::BOLD))
-    .placeholder(AnsiColor::Cyan.on_default());
-
 #[derive(Debug, Parser)]
 #[command(
    author,
@@ -95,7 +86,6 @@ const STYLES: Styles = Styles::styled()
    after_help = "For help with a specific command, see: `ruff help <command>`."
 )]
 #[command(version)]
-#[command(styles = STYLES)]
 pub struct Args {
    #[command(subcommand)]
    pub(crate) command: Command,
@@ -415,13 +405,8 @@ pub struct CheckCommand {
    )]
    pub statistics: bool,
    /// Enable automatic additions of `noqa` directives to failing lines.
-    /// Optionally provide a reason to append after the codes.
    #[arg(
        long,
-        value_name = "REASON",
-        default_missing_value = "",
-        num_args = 0..=1,
-        require_equals = true,
        // conflicts_with = "add_noqa",
        conflicts_with = "show_files",
        conflicts_with = "show_settings",
@@ -433,7 +418,7 @@ pub struct CheckCommand {
        conflicts_with = "fix",
        conflicts_with = "diff",
    )]
-    pub add_noqa: Option<String>,
+    pub add_noqa: bool,
    /// See the files Ruff will be run against with the current settings.
    #[arg(
        long,
@@ -1062,7 +1047,7 @@ Possible choices:
 /// etc.).
 #[expect(clippy::struct_excessive_bools)]
 pub struct CheckArguments {
-    pub add_noqa: Option<String>,
+    pub add_noqa: bool,
    pub diff: bool,
    pub exit_non_zero_on_fix: bool,
    pub exit_zero: bool,
--- a/crates/ruff/src/commands/add_noqa.rs
+++ b/crates/ruff/src/commands/add_noqa.rs
@@ -21,7 +21,6 @@ pub(crate) fn add_noqa(
    files: &[PathBuf],
    pyproject_config: &PyprojectConfig,
    config_arguments: &ConfigArguments,
-    reason: Option<&str>,
 ) -> Result<usize> {
    // Collect all the files to check.
    let start = Instant::now();
@@ -77,14 +76,7 @@ pub(crate) fn add_noqa(
                    return None;
                }
            };
-            match add_noqa_to_path(
-                path,
-                package,
-                &source_kind,
-                source_type,
-                &settings.linter,
-                reason,
-            ) {
+            match add_noqa_to_path(path, package, &source_kind, source_type, &settings.linter) {
                Ok(count) => Some(count),
                Err(e) => {
                    error!("Failed to add noqa to {}: {e}", path.display());
--- a/crates/ruff/src/commands/analyze_graph.rs
+++ b/crates/ruff/src/commands/analyze_graph.rs
@@ -7,7 +7,6 @@ use path_absolutize::CWD;
 use ruff_db::system::{SystemPath, SystemPathBuf};
 use ruff_graph::{Direction, ImportMap, ModuleDb, ModuleImports};
 use ruff_linter::package::PackageRoot;
-use ruff_linter::source_kind::SourceKind;
 use ruff_linter::{warn_user, warn_user_once};
 use ruff_python_ast::{PySourceType, SourceType};
 use ruff_workspace::resolver::{ResolvedFile, match_exclusion, python_files_in_path};
@@ -128,6 +127,10 @@ pub(crate) fn analyze_graph(
                    },
                    Some(language) => PySourceType::from(language),
                };
+                if matches!(source_type, PySourceType::Ipynb) {
+                    debug!("Ignoring Jupyter notebook: {}", path.display());
+                    continue;
+                }

                // Convert to system paths.
                let Ok(package) = package.map(SystemPathBuf::from_path_buf).transpose() else {
@@ -144,34 +147,13 @@ pub(crate) fn analyze_graph(
                let root = root.clone();
                let result = inner_result.clone();
                scope.spawn(move |_| {
-                    // Extract source code (handles both .py and .ipynb files)
-                    let source_kind = match SourceKind::from_path(path.as_std_path(), source_type) {
-                        Ok(Some(source_kind)) => source_kind,
-                        Ok(None) => {
-                            debug!("Skipping non-Python notebook: {path}");
-                            return;
-                        }
-                        Err(err) => {
-                            warn!("Failed to read source for {path}: {err}");
-                            return;
-                        }
-                    };
-
-                    let source_code = source_kind.source_code();
-
                    // Identify any imports via static analysis.
-                    let mut imports = ModuleImports::detect(
-                        &db,
-                        source_code,
-                        source_type,
-                        &path,
-                        package.as_deref(),
-                        string_imports,
-                    )
-                    .unwrap_or_else(|err| {
-                        warn!("Failed to generate import map for {path}: {err}");
-                        ModuleImports::default()
-                    });
+                    let mut imports =
+                        ModuleImports::detect(&db, &path, package.as_deref(), string_imports)
+                            .unwrap_or_else(|err| {
+                                warn!("Failed to generate import map for {path}: {err}");
+                                ModuleImports::default()
+                            });

                    debug!("Discovered {} imports for {}", imports.len(), path);

--- a/crates/ruff/src/commands/format.rs
+++ b/crates/ruff/src/commands/format.rs
@@ -370,7 +370,7 @@ pub(crate) fn format_source(
                let line_index = LineIndex::from_source_text(unformatted);
                let byte_range = range.to_text_range(unformatted, &line_index);
                format_range(unformatted, byte_range, options).map(|formatted_range| {
-                    let mut formatted = unformatted.clone();
+                    let mut formatted = unformatted.to_string();
                    formatted.replace_range(
                        std::ops::Range::<usize>::from(formatted_range.source_range()),
                        formatted_range.as_code(),
@@ -879,7 +879,19 @@ impl From<&FormatCommandError> for Diagnostic {
            | FormatCommandError::Write(_, source_error) => {
                Diagnostic::new(DiagnosticId::Io, Severity::Error, source_error)
            }
-            FormatCommandError::Format(_, format_module_error) => format_module_error.into(),
+            FormatCommandError::Format(_, format_module_error) => match format_module_error {
+                FormatModuleError::ParseError(parse_error) => Diagnostic::new(
+                    DiagnosticId::InternalError,
+                    Severity::Error,
+                    &parse_error.error,
+                ),
+                FormatModuleError::FormatError(format_error) => {
+                    Diagnostic::new(DiagnosticId::InternalError, Severity::Error, format_error)
+                }
+                FormatModuleError::PrintError(print_error) => {
+                    Diagnostic::new(DiagnosticId::InternalError, Severity::Error, print_error)
+                }
+            },
            FormatCommandError::RangeFormatNotebook(_) => Diagnostic::new(
                DiagnosticId::InvalidCliOption,
                Severity::Error,
--- a/crates/ruff/src/commands/linter.rs
+++ b/crates/ruff/src/commands/linter.rs
@@ -16,8 +16,6 @@ struct LinterInfo {
    prefix: &'static str,
    name: &'static str,
    #[serde(skip_serializing_if = "Option::is_none")]
-    url: Option<&'static str>,
-    #[serde(skip_serializing_if = "Option::is_none")]
    categories: Option<Vec<LinterCategoryInfo>>,
 }

@@ -52,7 +50,6 @@ pub(crate) fn linter(format: HelpFormat) -> Result<()> {
                .map(|linter_info| LinterInfo {
                    prefix: linter_info.common_prefix(),
                    name: linter_info.name(),
-                    url: linter_info.url(),
                    categories: linter_info.upstream_categories().map(|cats| {
                        cats.iter()
                            .map(|c| LinterCategoryInfo {
--- a/crates/ruff/src/commands/rule.rs
+++ b/crates/ruff/src/commands/rule.rs
@@ -7,7 +7,6 @@ use serde::{Serialize, Serializer};
 use strum::IntoEnumIterator;

 use ruff_linter::FixAvailability;
-use ruff_linter::codes::RuleGroup;
 use ruff_linter::registry::{Linter, Rule, RuleNamespace};

 use crate::args::HelpFormat;
@@ -20,12 +19,9 @@ struct Explanation<'a> {
    summary: &'a str,
    message_formats: &'a [&'a str],
    fix: String,
-    fix_availability: FixAvailability,
    #[expect(clippy::struct_field_names)]
    explanation: Option<&'a str>,
    preview: bool,
-    status: RuleGroup,
-    source_location: SourceLocation,
 }

 impl<'a> Explanation<'a> {
@@ -40,14 +36,8 @@ impl<'a> Explanation<'a> {
            summary: rule.message_formats()[0],
            message_formats: rule.message_formats(),
            fix,
-            fix_availability: rule.fixable(),
            explanation: rule.explanation(),
            preview: rule.is_preview(),
-            status: rule.group(),
-            source_location: SourceLocation {
-                file: rule.file(),
-                line: rule.line(),
-            },
        }
    }
 }
@@ -132,14 +122,3 @@ pub(crate) fn rules(format: HelpFormat) -> Result<()> {
    }
    Ok(())
 }
-
-/// The location of the rule's implementation in the Ruff source tree, relative to the repository
-/// root.
-///
-/// For most rules this will point to the `#[derive(ViolationMetadata)]` line above the rule's
-/// struct.
-#[derive(Serialize)]
-struct SourceLocation {
-    file: &'static str,
-    line: u32,
-}
--- a/crates/ruff/src/lib.rs
+++ b/crates/ruff/src/lib.rs
@@ -319,20 +319,12 @@ pub fn check(args: CheckCommand, global_options: GlobalConfigArgs) -> Result<Exi
        warn_user!("Detected debug build without --no-cache.");
    }

-    if let Some(reason) = &cli.add_noqa {
+    if cli.add_noqa {
        if !fix_mode.is_generate() {
            warn_user!("--fix is incompatible with --add-noqa.");
        }
-        if reason.contains(['\n', '\r']) {
-            return Err(anyhow::anyhow!(
-                "--add-noqa <reason> cannot contain newline characters"
-            ));
-        }
-
-        let reason_opt = (!reason.is_empty()).then_some(reason.as_str());
-
        let modifications =
-            commands::add_noqa::add_noqa(&files, &pyproject_config, &config_arguments, reason_opt)?;
+            commands::add_noqa::add_noqa(&files, &pyproject_config, &config_arguments)?;
        if modifications > 0 && config_arguments.log_level >= LogLevel::Default {
            let s = if modifications == 1 { "" } else { "s" };
            #[expect(clippy::print_stderr)]
--- a/crates/ruff/src/printer.rs
+++ b/crates/ruff/src/printer.rs
@@ -9,7 +9,9 @@ use itertools::{Itertools, iterate};
 use ruff_linter::linter::FixTable;
 use serde::Serialize;

-use ruff_db::diagnostic::{Diagnostic, DisplayDiagnosticConfig, SecondaryCode};
+use ruff_db::diagnostic::{
+    Diagnostic, DiagnosticFormat, DisplayDiagnosticConfig, DisplayDiagnostics, SecondaryCode,
+};
 use ruff_linter::fs::relativize_path;
 use ruff_linter::logging::LogLevel;
 use ruff_linter::message::{EmitterContext, render_diagnostics};
@@ -388,18 +390,21 @@ impl Printer {

            let context = EmitterContext::new(&diagnostics.notebook_indexes);
            let format = if preview {
-                self.format
+                DiagnosticFormat::Full
            } else {
-                OutputFormat::Concise
+                DiagnosticFormat::Concise
            };
            let config = DisplayDiagnosticConfig::default()
-                .preview(preview)
                .hide_severity(true)
                .color(!cfg!(test) && colored::control::SHOULD_COLORIZE.should_colorize())
                .with_show_fix_status(show_fix_status(self.fix_mode, fixables.as_ref()))
-                .with_fix_applicability(self.unsafe_fixes.required_applicability())
-                .show_fix_diff(preview);
-            render_diagnostics(writer, format, config, &context, &diagnostics.inner)?;
+                .format(format)
+                .with_fix_applicability(self.unsafe_fixes.required_applicability());
+            write!(
+                writer,
+                "{}",
+                DisplayDiagnostics::new(&context, &config, &diagnostics.inner)
+            )?;
        }
        writer.flush()?;

--- a/crates/ruff/tests/analyze_graph.rs
+++ b/crates/ruff/tests/analyze_graph.rs
@@ -653,133 +653,3 @@ fn venv() -> Result<()> {

    Ok(())
 }
-
-#[test]
-fn notebook_basic() -> Result<()> {
-    let tempdir = TempDir::new()?;
-    let root = ChildPath::new(tempdir.path());
-
-    root.child("ruff").child("__init__.py").write_str("")?;
-    root.child("ruff")
-        .child("a.py")
-        .write_str(indoc::indoc! {r#"
-        def helper():
-            pass
-    "#})?;
-
-    // Create a basic notebook with a simple import
-    root.child("notebook.ipynb").write_str(indoc::indoc! {r#"
-        {
-          "cells": [
-            {
-              "cell_type": "code",
-              "execution_count": null,
-              "metadata": {},
-              "outputs": [],
-              "source": [
-                "from ruff.a import helper"
-              ]
-            }
-          ],
-          "metadata": {
-            "language_info": {
-              "name": "python",
-              "version": "3.12.0"
-            }
-          },
-          "nbformat": 4,
-          "nbformat_minor": 5
-        }
-    "#})?;
-
-    insta::with_settings!({
-        filters => INSTA_FILTERS.to_vec(),
-    }, {
-        assert_cmd_snapshot!(command().current_dir(&root), @r###"
-        success: true
-        exit_code: 0
-        ----- stdout -----
-        {
-          "notebook.ipynb": [
-            "ruff/a.py"
-          ],
-          "ruff/__init__.py": [],
-          "ruff/a.py": []
-        }
-
-        ----- stderr -----
-        "###);
-    });
-
-    Ok(())
-}
-
-#[test]
-fn notebook_with_magic() -> Result<()> {
-    let tempdir = TempDir::new()?;
-    let root = ChildPath::new(tempdir.path());
-
-    root.child("ruff").child("__init__.py").write_str("")?;
-    root.child("ruff")
-        .child("a.py")
-        .write_str(indoc::indoc! {r#"
-        def helper():
-            pass
-    "#})?;
-
-    // Create a notebook with IPython magic commands and imports
-    root.child("notebook.ipynb").write_str(indoc::indoc! {r#"
-        {
-          "cells": [
-            {
-              "cell_type": "code",
-              "execution_count": null,
-              "metadata": {},
-              "outputs": [],
-              "source": [
-                "%load_ext autoreload\n",
-                "%autoreload 2"
-              ]
-            },
-            {
-              "cell_type": "code",
-              "execution_count": null,
-              "metadata": {},
-              "outputs": [],
-              "source": [
-                "from ruff.a import helper"
-              ]
-            }
-          ],
-          "metadata": {
-            "language_info": {
-              "name": "python",
-              "version": "3.12.0"
-            }
-          },
-          "nbformat": 4,
-          "nbformat_minor": 5
-        }
-    "#})?;
-
-    insta::with_settings!({
-        filters => INSTA_FILTERS.to_vec(),
-    }, {
-        assert_cmd_snapshot!(command().current_dir(&root), @r###"
-        success: true
-        exit_code: 0
-        ----- stdout -----
-        {
-          "notebook.ipynb": [
-            "ruff/a.py"
-          ],
-          "ruff/__init__.py": [],
-          "ruff/a.py": []
-        }
-
-        ----- stderr -----
-        "###);
-    });
-
-    Ok(())
-}
--- a/crates/ruff/tests/cli/lint.rs
+++ b/crates/ruff/tests/cli/lint.rs
@@ -1760,64 +1760,6 @@ from foo import (  # noqa: F401
    Ok(())
 }

-#[test]
-fn add_noqa_with_reason() -> Result<()> {
-    let fixture = CliTest::new()?;
-    fixture.write_file(
-        "test.py",
-        r#"import os
-
-def foo():
-    x = 1
-"#,
-    )?;
-
-    assert_cmd_snapshot!(fixture
-        .check_command()
-        .arg("--add-noqa=TODO: fix")
-        .arg("--select=F401,F841")
-        .arg("test.py"), @r"
-    success: true
-    exit_code: 0
-    ----- stdout -----
-
-    ----- stderr -----
-    Added 2 noqa directives.
-    ");
-
-    let content = fs::read_to_string(fixture.root().join("test.py"))?;
-    insta::assert_snapshot!(content, @r"
-import os  # noqa: F401 TODO: fix
-
-def foo():
-    x = 1  # noqa: F841 TODO: fix
-");
-
-    Ok(())
-}
-
-#[test]
-fn add_noqa_with_newline_in_reason() -> Result<()> {
-    let fixture = CliTest::new()?;
-    fixture.write_file("test.py", "import os\n")?;
-
-    assert_cmd_snapshot!(fixture
-        .check_command()
-        .arg("--add-noqa=line1\nline2")
-        .arg("--select=F401")
-        .arg("test.py"), @r###"
-    success: false
-    exit_code: 2
-    ----- stdout -----
-
-    ----- stderr -----
-    ruff failed
-      Cause: --add-noqa <reason> cannot contain newline characters
-    "###);
-
-    Ok(())
-}
-
 /// Infer `3.11` from `requires-python` in `pyproject.toml`.
 #[test]
 fn requires_python() -> Result<()> {
--- a/crates/ruff/tests/cli/main.rs
+++ b/crates/ruff/tests/cli/main.rs
@@ -15,7 +15,6 @@ use std::{
 };
 use tempfile::TempDir;

-mod format;
 mod lint;

 const BIN_NAME: &str = "ruff";
@@ -58,16 +57,6 @@ impl CliTest {
        Self::with_settings(|_, settings| settings)
    }

-    pub(crate) fn with_files<'a>(
-        files: impl IntoIterator<Item = (&'a str, &'a str)>,
-    ) -> anyhow::Result<Self> {
-        let case = Self::new()?;
-        for file in files {
-            case.write_file(file.0, file.1)?;
-        }
-        Ok(case)
-    }
-
    pub(crate) fn with_settings(
        setup_settings: impl FnOnce(&Path, insta::Settings) -> insta::Settings,
    ) -> Result<Self> {
@@ -185,10 +174,4 @@ impl CliTest {

        command
    }
-
-    pub(crate) fn format_command(&self) -> Command {
-        let mut command = self.command();
-        command.args(["format", "--no-cache"]);
-        command
-    }
 }
--- a/crates/ruff/tests/cli/format.rs
+++ b/crates/ruff/tests/cli/format.rs
--- a/crates/ruff/tests/integration_test.rs
+++ b/crates/ruff/tests/integration_test.rs
@@ -951,20 +951,6 @@ fn rule_f401() {
    assert_cmd_snapshot!(ruff_cmd().args(["rule", "F401"]));
 }

-#[test]
-fn rule_f401_output_json() {
-    insta::with_settings!({filters => vec![
-        (r#"("file": ")[^"]+(",)"#, "$1<FILE>$2"),
-    ]}, {
-        assert_cmd_snapshot!(ruff_cmd().args(["rule", "F401", "--output-format", "json"]));
-    });
-}
-
-#[test]
-fn rule_f401_output_text() {
-    assert_cmd_snapshot!(ruff_cmd().args(["rule", "F401", "--output-format", "text"]));
-}
-
 #[test]
 fn rule_invalid_rule_name() {
    assert_cmd_snapshot!(ruff_cmd().args(["rule", "RUF404"]), @r"
@@ -979,34 +965,6 @@ fn rule_invalid_rule_name() {
    ");
 }

-#[test]
-fn rule_invalid_rule_name_output_json() {
-    assert_cmd_snapshot!(ruff_cmd().args(["rule", "RUF404", "--output-format", "json"]), @r"
-    success: false
-    exit_code: 2
-    ----- stdout -----
-
-    ----- stderr -----
-    error: invalid value 'RUF404' for '[RULE]'
-
-    For more information, try '--help'.
-    ");
-}
-
-#[test]
-fn rule_invalid_rule_name_output_text() {
-    assert_cmd_snapshot!(ruff_cmd().args(["rule", "RUF404", "--output-format", "text"]), @r"
-    success: false
-    exit_code: 2
-    ----- stdout -----
-
-    ----- stderr -----
-    error: invalid value 'RUF404' for '[RULE]'
-
-    For more information, try '--help'.
-    ");
-}
-
 #[test]
 fn show_statistics() {
    let mut cmd = RuffCheck::default()
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_azure.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_azure.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_concise.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_concise.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_full.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_full.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_github.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_github.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_gitlab.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_gitlab.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_grouped.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_grouped.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
@@ -7,7 +7,6 @@ info:
    - "--no-cache"
    - "--output-format"
    - grouped
-    - "--preview"
    - "--check"
    - input.py
 ---
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_json-lines.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_json-lines.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_json.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_json.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_junit.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_junit.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_pylint.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_pylint.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
@@ -7,7 +7,6 @@ info:
    - "--no-cache"
    - "--output-format"
    - pylint
-    - "--preview"
    - "--check"
    - input.py
 ---
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_rdjson.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_rdjson.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/cli/snapshots/cliformatoutput_format_sarif.snap
+++ b/crates/ruff/tests/cli/snapshots/cliformatoutput_format_sarif.snap
@@ -1,5 +1,5 @@
 ---
-source: crates/ruff/tests/cli/format.rs
+source: crates/ruff/tests/format.rs
 info:
  program: ruff
  args:
--- a/crates/ruff/tests/snapshots/integration_test__rule_f401_output_json.snap
+++ b/crates/ruff/tests/snapshots/integration_test__rule_f401_output_json.snap
@@ -1,38 +0,0 @@
---
-source: crates/ruff/tests/integration_test.rs
-info:
-  program: ruff
-  args:
-    - rule
-    - F401
-    - "--output-format"
-    - json
---
-success: true
-exit_code: 0
----- stdout -----
-{
-  "name": "unused-import",
-  "code": "F401",
-  "linter": "Pyflakes",
-  "summary": "`{name}` imported but unused; consider using `importlib.util.find_spec` to test for availability",
-  "message_formats": [
-    "`{name}` imported but unused; consider using `importlib.util.find_spec` to test for availability",
-    "`{name}` imported but unused; consider removing, adding to `__all__`, or using a redundant alias",
-    "`{name}` imported but unused"
-  ],
-  "fix": "Fix is sometimes available.",
-  "fix_availability": "Sometimes",
-  "explanation": "## 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## Preview\nWhen [preview] is enabled (and certain simplifying assumptions\nare met), we analyze all import statements for a given module\nwhen determining whether an import is used, rather than simply\nthe last of these statements. This can result in both different and\nmore import statements being marked as unused.\n\nFor example, if a module consists of\n\n```python\nimport a\nimport a.b\n```\n\nthen both statements are marked as unused under [preview], whereas\nonly the second is marked as unused under stable behavior.\n\nAs another example, if a module consists of\n\n```python\nimport a.b\nimport a\n\na.b.foo()\n```\n\nthen a diagnostic will only be emitted for the first line under [preview],\nwhereas a diagnostic would only be emitted for the second line under\nstable behavior.\n\nNote that this behavior is somewhat subjective and is designed\nto conform to the developer's intuition rather than Python's actual\nexecution. To wit, the statement `import a.b` automatically executes\n`import a`, so in some sense `import a` is _always_ redundant\nin the presence of `import a.b`.\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\n[preview]: https://docs.astral.sh/ruff/preview/\n",
-  "preview": false,
-  "status": {
-    "Stable": {
-      "since": "v0.0.18"
-    }
-  },
-  "source_location": {
-    "file": "<FILE>",
-    "line": 145
-  }
-}
----- stderr -----
--- a/crates/ruff/tests/snapshots/integration_test__rule_f401_output_text.snap
+++ b/crates/ruff/tests/snapshots/integration_test__rule_f401_output_text.snap
@@ -1,140 +0,0 @@
---
-source: crates/ruff/tests/integration_test.rs
-info:
-  program: ruff
-  args:
-    - rule
-    - F401
-    - "--output-format"
-    - text
---
-success: true
-exit_code: 0
----- stdout -----
-# unused-import (F401)
-
-Derived from the **Pyflakes** linter.
-
-Fix is sometimes available.
-
-## What it does
-Checks for unused imports.
-
-## Why is this bad?
-Unused imports add a performance overhead at runtime, and risk creating
-import cycles. They also increase the cognitive load of reading the code.
-
-If an import statement is used to check for the availability or existence
-of a module, consider using `importlib.util.find_spec` instead.
-
-If an import statement is used to re-export a symbol as part of a module's
-public interface, consider using a "redundant" import alias, which
-instructs Ruff (and other tools) to respect the re-export, and avoid
-marking it as unused, as in:
-
-```python
-from module import member as member
-```
-
-Alternatively, you can use `__all__` to declare a symbol as part of the module's
-interface, as in:
-
-```python
-# __init__.py
-import some_module
-
-__all__ = ["some_module"]
-```
-
-## Preview
-When [preview] is enabled (and certain simplifying assumptions
-are met), we analyze all import statements for a given module
-when determining whether an import is used, rather than simply
-the last of these statements. This can result in both different and
-more import statements being marked as unused.
-
-For example, if a module consists of
-
-```python
-import a
-import a.b
-```
-
-then both statements are marked as unused under [preview], whereas
-only the second is marked as unused under stable behavior.
-
-As another example, if a module consists of
-
-```python
-import a.b
-import a
-
-a.b.foo()
-```
-
-then a diagnostic will only be emitted for the first line under [preview],
-whereas a diagnostic would only be emitted for the second line under
-stable behavior.
-
-Note that this behavior is somewhat subjective and is designed
-to conform to the developer's intuition rather than Python's actual
-execution. To wit, the statement `import a.b` automatically executes
-`import a`, so in some sense `import a` is _always_ redundant
-in the presence of `import a.b`.
-
-
-## Fix safety
-
-Fixes to remove unused imports are safe, except in `__init__.py` files.
-
-Applying fixes to `__init__.py` files is currently in preview. The fix offered depends on the
-type of the unused import. Ruff will suggest a safe fix to export first-party imports with
-either a redundant alias or, if already present in the file, an `__all__` entry. If multiple
-`__all__` declarations are present, Ruff will not offer a fix. Ruff will suggest an unsafe fix
-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
-import numpy as np  # unused import
-
-
-def area(radius):
-    return 3.14 * radius**2
-```
-
-Use instead:
-
-```python
-def area(radius):
-    return 3.14 * radius**2
-```
-
-To check the availability of a module, use `importlib.util.find_spec`:
-
-```python
-from importlib.util import find_spec
-
-if find_spec("numpy") is not None:
-    print("numpy is installed")
-else:
-    print("numpy is not installed")
-```
-
-## Options
- `lint.ignore-init-module-imports`
- `lint.pyflakes.allowed-unused-imports`
-
-## References
- [Python documentation: `import`](https://docs.python.org/3/reference/simple_stmts.html#the-import-statement)
- [Python documentation: `importlib.util.find_spec`](https://docs.python.org/3/library/importlib.html#importlib.util.find_spec)
- [Typing documentation: interface conventions](https://typing.python.org/en/latest/spec/distributing.html#library-interface-public-and-private-symbols)
-
-[preview]: https://docs.astral.sh/ruff/preview/
-
----- stderr -----
--- a/crates/ruff_benchmark/benches/ty.rs
+++ b/crates/ruff_benchmark/benches/ty.rs
@@ -667,7 +667,7 @@ fn attrs(criterion: &mut Criterion) {
            max_dep_date: "2025-06-17",
            python_version: PythonVersion::PY313,
        },
-        110,
+        100,
    );

    bench_project(&benchmark, criterion);
@@ -684,7 +684,7 @@ fn anyio(criterion: &mut Criterion) {
            max_dep_date: "2025-06-17",
            python_version: PythonVersion::PY313,
        },
-        150,
+        100,
    );

    bench_project(&benchmark, criterion);
--- a/crates/ruff_benchmark/benches/ty_walltime.rs
+++ b/crates/ruff_benchmark/benches/ty_walltime.rs
@@ -146,7 +146,7 @@ static FREQTRADE: Benchmark = Benchmark::new(
        max_dep_date: "2025-06-17",
        python_version: PythonVersion::PY312,
    },
-    525,
+    400,
 );

 static PANDAS: Benchmark = Benchmark::new(
@@ -210,7 +210,7 @@ static TANJUN: Benchmark = Benchmark::new(
        max_dep_date: "2025-06-17",
        python_version: PythonVersion::PY312,
    },
-    320,
+    100,
 );

 static STATIC_FRAME: Benchmark = Benchmark::new(
@@ -226,7 +226,7 @@ static STATIC_FRAME: Benchmark = Benchmark::new(
        max_dep_date: "2025-08-09",
        python_version: PythonVersion::PY311,
    },
-    800,
+    630,
 );

 #[track_caller]
--- a/crates/ruff_db/src/diagnostic/render/full.rs
+++ b/crates/ruff_db/src/diagnostic/render/full.rs
@@ -112,16 +112,16 @@ impl std::fmt::Display for Diff<'_> {
        // `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_index = OneIndexed::MIN;
+            let mut last_cell = OneIndexed::MIN;
            let mut cells: Vec<(Option<OneIndexed>, TextSize)> = Vec::new();
-            for cell in notebook_index.iter() {
-                if cell.cell_index() != last_cell_index {
-                    let offset = source_code.line_start(cell.start_row());
-                    cells.push((Some(last_cell_index), offset));
-                    last_cell_index = cell.cell_index();
+            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_index), source_text.text_len()));
+            cells.push((Some(last_cell), source_text.text_len()));
            cells
        } else {
            vec![(None, source_text.text_len())]
--- a/crates/ruff_db/src/files.rs
+++ b/crates/ruff_db/src/files.rs
@@ -470,17 +470,6 @@ impl File {
        self.source_type(db).is_stub()
    }

-    /// Returns `true` if the file is an `__init__.pyi`
-    pub fn is_package_stub(self, db: &dyn Db) -> bool {
-        self.path(db).as_str().ends_with("__init__.pyi")
-    }
-
-    /// Returns `true` if the file is an `__init__.pyi`
-    pub fn is_package(self, db: &dyn Db) -> bool {
-        let path = self.path(db).as_str();
-        path.ends_with("__init__.pyi") || path.ends_with("__init__.py")
-    }
-
    pub fn source_type(self, db: &dyn Db) -> PySourceType {
        match self.path(db) {
            FilePath::System(path) => path
--- a/crates/ruff_db/src/system/os.rs
+++ b/crates/ruff_db/src/system/os.rs
@@ -200,12 +200,7 @@ impl System for OsSystem {
    /// The walker ignores files according to [`ignore::WalkBuilder::standard_filters`]
    /// when setting [`WalkDirectoryBuilder::standard_filters`] to true.
    fn walk_directory(&self, path: &SystemPath) -> WalkDirectoryBuilder {
-        WalkDirectoryBuilder::new(
-            path,
-            OsDirectoryWalker {
-                cwd: self.current_directory().to_path_buf(),
-            },
-        )
+        WalkDirectoryBuilder::new(path, OsDirectoryWalker {})
    }

    fn glob(
@@ -459,9 +454,7 @@ struct ListedDirectory {
 }

 #[derive(Debug)]
-struct OsDirectoryWalker {
-    cwd: SystemPathBuf,
-}
+struct OsDirectoryWalker;

 impl DirectoryWalker for OsDirectoryWalker {
    fn walk(
@@ -480,7 +473,6 @@ impl DirectoryWalker for OsDirectoryWalker {
        };

        let mut builder = ignore::WalkBuilder::new(first.as_std_path());
-        builder.current_dir(self.cwd.as_std_path());

        builder.standard_filters(standard_filters);
        builder.hidden(hidden);
--- a/crates/ruff_db/src/system/path.rs
+++ b/crates/ruff_db/src/system/path.rs
@@ -723,11 +723,10 @@ impl ruff_cache::CacheKey for SystemPathBuf {

 /// A slice of a virtual path on [`System`](super::System) (akin to [`str`]).
 #[repr(transparent)]
-#[derive(Eq, PartialEq, Hash, PartialOrd, Ord)]
 pub struct SystemVirtualPath(str);

 impl SystemVirtualPath {
-    pub const fn new(path: &str) -> &SystemVirtualPath {
+    pub fn new(path: &str) -> &SystemVirtualPath {
        // SAFETY: SystemVirtualPath is marked as #[repr(transparent)] so the conversion from a
        // *const str to a *const SystemVirtualPath is valid.
        unsafe { &*(path as *const str as *const SystemVirtualPath) }
@@ -768,8 +767,8 @@ pub struct SystemVirtualPathBuf(String);

 impl SystemVirtualPathBuf {
    #[inline]
-    pub const fn as_path(&self) -> &SystemVirtualPath {
-        SystemVirtualPath::new(self.0.as_str())
+    pub fn as_path(&self) -> &SystemVirtualPath {
+        SystemVirtualPath::new(&self.0)
    }
 }

@@ -853,12 +852,6 @@ impl ruff_cache::CacheKey for SystemVirtualPathBuf {
    }
 }

-impl Borrow<SystemVirtualPath> for SystemVirtualPathBuf {
-    fn borrow(&self) -> &SystemVirtualPath {
-        self.as_path()
-    }
-}
-
 /// Deduplicates identical paths and removes nested paths.
 ///
 /// # Examples
--- a/crates/ruff_dev/src/generate_docs.rs
+++ b/crates/ruff_dev/src/generate_docs.rs
@@ -8,7 +8,6 @@ use std::path::PathBuf;
 use anyhow::Result;
 use itertools::Itertools;
 use regex::{Captures, Regex};
-use ruff_linter::codes::RuleGroup;
 use strum::IntoEnumIterator;

 use ruff_linter::FixAvailability;
@@ -32,47 +31,6 @@ pub(crate) fn main(args: &Args) -> Result<()> {

            let _ = writeln!(&mut output, "# {} ({})", rule.name(), rule.noqa_code());

-            let status_text = match rule.group() {
-                RuleGroup::Stable { since } => {
-                    format!(
-                        r#"Added in <a href="https://github.com/astral-sh/ruff/releases/tag/{since}">{since}</a>"#
-                    )
-                }
-                RuleGroup::Preview { since } => {
-                    format!(
-                        r#"Preview (since <a href="https://github.com/astral-sh/ruff/releases/tag/{since}">{since}</a>)"#
-                    )
-                }
-                RuleGroup::Deprecated { since } => {
-                    format!(
-                        r#"Deprecated (since <a href="https://github.com/astral-sh/ruff/releases/tag/{since}">{since}</a>)"#
-                    )
-                }
-                RuleGroup::Removed { since } => {
-                    format!(
-                        r#"Removed (since <a href="https://github.com/astral-sh/ruff/releases/tag/{since}">{since}</a>)"#
-                    )
-                }
-            };
-
-            let _ = writeln!(
-                &mut output,
-                r#"<small>
-{status_text} ·
-<a href="https://github.com/astral-sh/ruff/issues?q=sort%3Aupdated-desc%20is%3Aissue%20is%3Aopen%20(%27{encoded_name}%27%20OR%20{rule_code})" target="_blank">Related issues</a> ·
-<a href="https://github.com/astral-sh/ruff/blob/main/{file}#L{line}" target="_blank">View source</a>
-</small>
-
-"#,
-                encoded_name =
-                    url::form_urlencoded::byte_serialize(rule.name().as_str().as_bytes())
-                        .collect::<String>(),
-                rule_code = rule.noqa_code(),
-                file =
-                    url::form_urlencoded::byte_serialize(rule.file().replace('\\', "/").as_bytes())
-                        .collect::<String>(),
-                line = rule.line(),
-            );
            let (linter, _) = Linter::parse_code(&rule.noqa_code().to_string()).unwrap();
            if linter.url().is_some() {
                let common_prefix: String = match linter.common_prefix() {
--- a/crates/ruff_dev/src/generate_json_schema.rs
+++ b/crates/ruff_dev/src/generate_json_schema.rs
@@ -3,7 +3,7 @@ use std::path::PathBuf;

 use anyhow::{Result, bail};
 use pretty_assertions::StrComparison;
-use schemars::generate::SchemaSettings;
+use schemars::schema_for;

 use crate::ROOT_DIR;
 use crate::generate_all::{Mode, REGENERATE_ALL_COMMAND};
@@ -17,9 +17,7 @@ pub(crate) struct Args {
 }

 pub(crate) fn main(args: &Args) -> Result<()> {
-    let settings = SchemaSettings::draft07();
-    let generator = settings.into_generator();
-    let schema = generator.into_root_schema_for::<Options>();
+    let schema = schema_for!(Options);
    let schema_string = serde_json::to_string_pretty(&schema).unwrap();
    let filename = "ruff.schema.json";
    let schema_path = PathBuf::from(ROOT_DIR).join(filename);
--- a/crates/ruff_dev/src/generate_options.rs
+++ b/crates/ruff_dev/src/generate_options.rs
@@ -62,7 +62,7 @@ fn generate_set(output: &mut String, set: Set, parents: &mut Vec<Set>) {
        generate_set(
            output,
            Set::Named {
-                name: set_name.clone(),
+                name: set_name.to_string(),
                set: *sub_set,
            },
            parents,
--- a/crates/ruff_dev/src/generate_rules_table.rs
+++ b/crates/ruff_dev/src/generate_rules_table.rs
@@ -32,24 +32,20 @@ fn generate_table(table_out: &mut String, rules: impl IntoIterator<Item = Rule>,
    table_out.push('\n');
    for rule in rules {
        let status_token = match rule.group() {
-            RuleGroup::Removed { since } => {
+            RuleGroup::Removed => {
                format!(
-                    "<span {SYMBOL_STYLE} title='Rule was removed in {since}'>{REMOVED_SYMBOL}</span>"
+                    "<span {SYMBOL_STYLE} title='Rule has been removed'>{REMOVED_SYMBOL}</span>"
                )
            }
-            RuleGroup::Deprecated { since } => {
+            RuleGroup::Deprecated => {
                format!(
-                    "<span {SYMBOL_STYLE} title='Rule has been deprecated since {since}'>{WARNING_SYMBOL}</span>"
+                    "<span {SYMBOL_STYLE} title='Rule has been deprecated'>{WARNING_SYMBOL}</span>"
                )
            }
-            RuleGroup::Preview { since } => {
-                format!(
-                    "<span {SYMBOL_STYLE} title='Rule has been in preview since {since}'>{PREVIEW_SYMBOL}</span>"
-                )
-            }
-            RuleGroup::Stable { since } => {
-                format!("<span {SYMBOL_STYLE} title='Rule has been stable since {since}'></span>")
+            RuleGroup::Preview => {
+                format!("<span {SYMBOL_STYLE} title='Rule is in preview'>{PREVIEW_SYMBOL}</span>")
            }
+            RuleGroup::Stable => format!("<span {SYMBOL_STYLE}></span>"),
        };

        let fix_token = match rule.fixable() {
--- a/crates/ruff_dev/src/generate_ty_options.rs
+++ b/crates/ruff_dev/src/generate_ty_options.rs
@@ -104,7 +104,7 @@ fn generate_set(output: &mut String, set: Set, parents: &mut Vec<Set>) {
        generate_set(
            output,
            Set::Named {
-                name: set_name.clone(),
+                name: set_name.to_string(),
                set: *sub_set,
            },
            parents,
--- a/crates/ruff_dev/src/generate_ty_schema.rs
+++ b/crates/ruff_dev/src/generate_ty_schema.rs
@@ -3,7 +3,7 @@ use std::path::PathBuf;

 use anyhow::{Result, bail};
 use pretty_assertions::StrComparison;
-use schemars::generate::SchemaSettings;
+use schemars::schema_for;

 use crate::ROOT_DIR;
 use crate::generate_all::{Mode, REGENERATE_ALL_COMMAND};
@@ -17,9 +17,7 @@ pub(crate) struct Args {
 }

 pub(crate) fn main(args: &Args) -> Result<()> {
-    let settings = SchemaSettings::draft07();
-    let generator = settings.into_generator();
-    let schema = generator.into_root_schema_for::<Options>();
+    let schema = schema_for!(Options);
    let schema_string = serde_json::to_string_pretty(&schema).unwrap();
    let filename = "ty.schema.json";
    let schema_path = PathBuf::from(ROOT_DIR).join(filename);
--- a/crates/ruff_formatter/src/builders.rs
+++ b/crates/ruff_formatter/src/builders.rs
@@ -1006,7 +1006,7 @@ impl<Context> std::fmt::Debug for Align<'_, Context> {
 /// Block indents indent a block of code, such as in a function body, and therefore insert a line
 /// break before and after the content.
 ///
-/// Doesn't create an indentation if the passed in content is empty.
+/// Doesn't create an indentation if the passed in content is [`FormatElement.is_empty`].
 ///
 /// # Examples
 ///
--- a/crates/ruff_formatter/src/format_element.rs
+++ b/crates/ruff_formatter/src/format_element.rs
@@ -487,7 +487,7 @@ pub trait FormatElements {
 /// Represents the width by adding 1 to the actual width so that the width can be represented by a [`NonZeroU32`],
 /// allowing [`TextWidth`] or [`Option<Width>`] fit in 4 bytes rather than 8.
 ///
-/// This means that 2^32 cannot be precisely represented and instead has the same value as 2^32-1.
+/// This means that 2^32 can not be precisely represented and instead has the same value as 2^32-1.
 /// This imprecision shouldn't matter in practice because either text are longer than any configured line width
 /// and thus, the text should break.
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
--- a/crates/ruff_graph/src/lib.rs
+++ b/crates/ruff_graph/src/lib.rs
@@ -3,9 +3,8 @@ use std::collections::{BTreeMap, BTreeSet};
 use anyhow::Result;

 use ruff_db::system::{SystemPath, SystemPathBuf};
-use ruff_python_ast::PySourceType;
 use ruff_python_ast::helpers::to_module_path;
-use ruff_python_parser::{ParseOptions, parse};
+use ruff_python_parser::{Mode, ParseOptions, parse};

 use crate::collector::Collector;
 pub use crate::db::ModuleDb;
@@ -25,14 +24,13 @@ impl ModuleImports {
    /// Detect the [`ModuleImports`] for a given Python file.
    pub fn detect(
        db: &ModuleDb,
-        source: &str,
-        source_type: PySourceType,
        path: &SystemPath,
        package: Option<&SystemPath>,
        string_imports: StringImports,
    ) -> Result<Self> {
-        // Parse the source code.
-        let parsed = parse(source, ParseOptions::from(source_type))?;
+        // Read and parse the source code.
+        let source = std::fs::read_to_string(path)?;
+        let parsed = parse(&source, ParseOptions::from(Mode::Module))?;

        let module_path =
            package.and_then(|package| to_module_path(package.as_std_path(), path.as_std_path()));
--- a/crates/ruff_linter/Cargo.toml
+++ b/crates/ruff_linter/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruff_linter"
-version = "0.14.4"
+version = "0.14.1"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }
--- a/crates/ruff_linter/resources/test/fixtures/airflow/AIR301_args.py
+++ b/crates/ruff_linter/resources/test/fixtures/airflow/AIR301_args.py
@@ -22,7 +22,6 @@ DAG(dag_id="class_schedule_interval", schedule_interval="@hourly")

 DAG(dag_id="class_timetable", timetable=NullTimetable())

-DAG(dag_id="class_concurrency", concurrency=12)

 DAG(dag_id="class_fail_stop", fail_stop=True)

--- a/crates/ruff_linter/resources/test/fixtures/airflow/AIR301_class_attribute.py
+++ b/crates/ruff_linter/resources/test/fixtures/airflow/AIR301_class_attribute.py
@@ -10,7 +10,6 @@ from airflow.datasets import (
 )
 from airflow.datasets.manager import DatasetManager
 from airflow.lineage.hook import DatasetLineageInfo, HookLineageCollector
-from airflow.models.dag import DAG
 from airflow.providers.amazon.aws.auth_manager.aws_auth_manager import AwsAuthManager
 from airflow.providers.apache.beam.hooks import BeamHook, NotAir302HookError
 from airflow.providers.google.cloud.secrets.secret_manager import (
@@ -21,7 +20,6 @@ from airflow.providers_manager import ProvidersManager
 from airflow.secrets.base_secrets import BaseSecretsBackend
 from airflow.secrets.local_filesystem import LocalFilesystemBackend

-
 # airflow.Dataset
 dataset_from_root = DatasetFromRoot()
 dataset_from_root.iter_datasets()
@@ -58,10 +56,6 @@ hlc.add_input_dataset()
 hlc.add_output_dataset()
 hlc.collected_datasets()

-# airflow.models.dag.DAG
-test_dag = DAG(dag_id="test_dag")
-test_dag.create_dagrun()
-
 # airflow.providers.amazon.auth_manager.aws_auth_manager
 aam = AwsAuthManager()
 aam.is_authorized_dataset()
@@ -102,15 +96,3 @@ base_secret_backend.get_connections()
 # airflow.secrets.local_filesystem
 lfb = LocalFilesystemBackend()
 lfb.get_connections()
-
-from airflow.models import DAG
-
-# airflow.DAG
-test_dag = DAG(dag_id="test_dag")
-test_dag.create_dagrun()
-
-from airflow import DAG
-
-# airflow.DAG
-test_dag = DAG(dag_id="test_dag")
-test_dag.create_dagrun()
--- a/crates/ruff_linter/resources/test/fixtures/airflow/AIR311_names.py
+++ b/crates/ruff_linter/resources/test/fixtures/airflow/AIR311_names.py
@@ -91,20 +91,10 @@ get_unique_task_id()
 task_decorator_factory()


-from airflow.models import DagParam, Param, ParamsDict
+from airflow.models import Param

 # airflow.models
 Param()
-DagParam()
-ParamsDict()
-
-
-from airflow.models.param import DagParam, Param, ParamsDict
-
-# airflow.models.param
-Param()
-DagParam()
-ParamsDict()


 from airflow.sensors.base import (
--- a/crates/ruff_linter/resources/test/fixtures/fastapi/FAST002_2.py
+++ b/crates/ruff_linter/resources/test/fixtures/fastapi/FAST002_2.py
@@ -1,87 +0,0 @@
-"""Test FAST002 ellipsis handling."""
-
-from fastapi import Body, Cookie, FastAPI, Header, Query
-
-app = FastAPI()
-
-
-# Cases that should be fixed - ellipsis should be removed
-
-
-@app.get("/test1")
-async def test_ellipsis_query(
-    # This should become: param: Annotated[str, Query(description="Test param")]
-    param: str = Query(..., description="Test param"),
-) -> str:
-    return param
-
-
-@app.get("/test2")
-async def test_ellipsis_header(
-    # This should become: auth: Annotated[str, Header(description="Auth header")]
-    auth: str = Header(..., description="Auth header"),
-) -> str:
-    return auth
-
-
-@app.post("/test3")
-async def test_ellipsis_body(
-    # This should become: data: Annotated[dict, Body(description="Request body")]
-    data: dict = Body(..., description="Request body"),
-) -> dict:
-    return data
-
-
-@app.get("/test4")
-async def test_ellipsis_cookie(
-    # This should become: session: Annotated[str, Cookie(description="Session ID")]
-    session: str = Cookie(..., description="Session ID"),
-) -> str:
-    return session
-
-
-@app.get("/test5")
-async def test_simple_ellipsis(
-    # This should become: id: Annotated[str, Query()]
-    id: str = Query(...),
-) -> str:
-    return id
-
-
-@app.get("/test6")
-async def test_multiple_kwargs_with_ellipsis(
-    # This should become: param: Annotated[str, Query(description="Test", min_length=1, max_length=10)]
-    param: str = Query(..., description="Test", min_length=1, max_length=10),
-) -> str:
-    return param
-
-
-# Cases with actual default values - these should preserve the default
-
-
-@app.get("/test7")
-async def test_with_default_value(
-    # This should become: param: Annotated[str, Query(description="Test")] = "default"
-    param: str = Query("default", description="Test"),
-) -> str:
-    return param
-
-
-@app.get("/test8")
-async def test_with_default_none(
-    # This should become: param: Annotated[str | None, Query(description="Test")] = None
-    param: str | None = Query(None, description="Test"),
-) -> str:
-    return param or "empty"
-
-
-@app.get("/test9")
-async def test_mixed_parameters(
-    # First param should be fixed with default preserved  
-    optional_param: str = Query("default", description="Optional"),
-    # Second param should not be fixed because of the preceding default
-    required_param: str = Query(..., description="Required"),
-    # Third param should be fixed with default preserved
-    another_optional_param: int = Query(42, description="Another optional"),
-) -> str:
-    return f"{required_param}-{optional_param}-{another_optional_param}"
--- a/crates/ruff_linter/resources/test/fixtures/fastapi/FAST003.py
+++ b/crates/ruff_linter/resources/test/fixtures/fastapi/FAST003.py
@@ -256,12 +256,3 @@ async def f4():
@app.get("/f5/{param: int}")
 async def f5():
    return locals()
-
-# https://github.com/astral-sh/ruff/issues/20941
-@app.get("/imports/{import}")
-async def get_import():
-    ...
-
-@app.get("/debug/{__debug__}")
-async def get_debug():
-    ...
--- a/crates/ruff_linter/resources/test/fixtures/flake8_bugbear/B009_B010.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_bugbear/B009_B010.py
@@ -70,12 +70,3 @@ builtins.getattr(foo, "bar")

 # Regression test for: https://github.com/astral-sh/ruff/issues/18353
 setattr(foo, "__debug__", 0)
-
-# Regression test for: https://github.com/astral-sh/ruff/issues/21126
-# Non-NFKC attribute names should be marked as unsafe. Python normalizes identifiers in
-# attribute access (obj.attr) using NFKC, but does not normalize string
-# arguments passed to getattr/setattr. Rewriting `getattr(ns, "ſ")` to
-# `ns.ſ` would be interpreted as `ns.s` at runtime, changing behavior.
-# Example: the long s character "ſ" normalizes to "s" under NFKC.
-getattr(foo, "ſ")
-setattr(foo, "ſ", 1)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_bugbear/B905.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_bugbear/B905.py
@@ -1,10 +1,12 @@
 from itertools import count, cycle, repeat

 # Errors
+zip()
+zip(range(3))
 zip("a", "b")
 zip("a", "b", *zip("c"))
-zip(zip("a", "b"), strict=False)
-zip(zip("a", strict=True),"b")
+zip(zip("a"), strict=False)
+zip(zip("a", strict=True))

 # OK
 zip(range(3), strict=True)
@@ -25,10 +27,3 @@ zip([1, 2, 3], repeat(1, times=4))
 import builtins
 # Still an error even though it uses the qualified name
 builtins.zip([1, 2, 3])
-
-# Regression https://github.com/astral-sh/ruff/issues/20997
-# Ok
-zip()
-zip(range(3))
-# Error
-zip(*lot_of_iterators)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_bugbear/B912.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_bugbear/B912.py
@@ -31,6 +31,3 @@ map(lambda x, y: x + y, [1, 2, 3], cycle([1, 2, 3]))
 map(lambda x, y: x + y, [1, 2, 3], repeat(1))
 map(lambda x, y: x + y, [1, 2, 3], repeat(1, times=None))
 map(lambda x, y: x + y, [1, 2, 3], count())
-
-# Regression https://github.com/astral-sh/ruff/issues/20997
-map(f, *lots_of_iterators)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_django/DJ001.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_django/DJ001.py
@@ -46,9 +46,3 @@ class CorrectModel(models.Model):
        max_length=255, null=True, blank=True, unique=True
    )
    urlfieldu = models.URLField(max_length=255, null=True, blank=True, unique=True)
-
-
-class IncorrectModelWithSimpleAnnotations(models.Model):
-    charfield: models.CharField = models.CharField(max_length=255, null=True)
-    textfield: models.TextField = models.TextField(max_length=255, null=True)
-    slugfield: models.SlugField = models.SlugField(max_length=255, null=True)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT001.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT001.py
@@ -2,52 +2,3 @@ _(f"{'value'}")

 # Don't trigger for t-strings
 _(t"{'value'}")
-
-gettext(f"{'value'}")
-ngettext(f"{'value'}", f"{'values'}", 2)
-
-_gettext(f"{'value'}")  # no lint
-gettext_fn(f"{'value'}")  # no lint
-
-
-# https://github.com/astral-sh/ruff/issues/19028 - import aliases
-import gettext as gettext_mod
-from gettext import (
-    gettext as gettext_fn,
-    ngettext as ngettext_fn,
-)
-
-name = "Guido"
-
-gettext_mod.gettext(f"Hello, {name}!")
-gettext_mod.ngettext(f"Hello, {name}!", f"Hello, {name}s!", 2)
-gettext_fn(f"Hello, {name}!")
-ngettext_fn(f"Hello, {name}!", f"Hello, {name}s!", 2)
-
-
-# https://github.com/astral-sh/ruff/issues/19028 - deferred translations
-def _(message): return message
-
-animals = [_(f"{'mollusk'}"),
-           _(f"{'albatross'}"),
-           _(f"{'rat'}"),
-           _(f"{'penguin'}"),
-           _(f"{'python'}"),]
-
-del _
-
-for a in animals:
-    print(_(a))
-    print(_(f"{a}"))
-
-
-# https://github.com/astral-sh/ruff/issues/19028
-#  - installed translations/i18n functions dynamically assigned to builtins
-import builtins
-
-gettext_mod.install("domain")
-builtins.__dict__["gettext"] = gettext_fn
-
-builtins._(f"{'value'}")
-builtins.gettext(f"{'value'}")
-builtins.ngettext(f"{'value'}", f"{'values'}", 2)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT002.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT002.py
@@ -1,49 +1 @@
 _("{}".format("line"))
-gettext("{}".format("line"))
-ngettext("{}".format("line"), "{}".format("lines"), 2)
-
-_gettext("{}".format("line"))  # no lint
-gettext_fn("{}".format("line"))  # no lint
-
-
-# https://github.com/astral-sh/ruff/issues/19028
-import gettext as gettext_mod
-from gettext import (
-    gettext as gettext_fn,
-    ngettext as ngettext_fn,
-)
-
-name = "Guido"
-
-gettext_mod.gettext("Hello, {}!".format(name))
-gettext_mod.ngettext("Hello, {}!".format(name), "Hello, {}s!".format(name), 2)
-gettext_fn("Hello, {}!".format(name))
-ngettext_fn("Hello, {}!".format(name), "Hello, {}s!".format(name), 2)
-
-
-# https://github.com/astral-sh/ruff/issues/19028 - deferred translations
-def _(message): return message
-
-animals = [_("{}".format("mollusk")),
-           _("{}".format("albatross")),
-           _("{}".format("rat")),
-           _("{}".format("penguin")),
-           _("{}".format("python")),]
-
-del _
-
-for a in animals:
-    print(_(a))
-    print(_("{}".format(a)))
-
-
-# https://github.com/astral-sh/ruff/issues/19028
-#  - installed translations/i18n functions dynamically assigned to builtins
-import builtins
-
-gettext_mod.install("domain")
-builtins.__dict__["gettext"] = gettext_fn
-
-builtins._("{}".format("line"))
-builtins.gettext("{}".format("line"))
-builtins.ngettext("{}".format("line"), "{}".format("lines"), 2)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT003.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_gettext/INT003.py
@@ -1,49 +1 @@
 _("%s" % "line")
-gettext("%s" % "line")
-ngettext("%s" % "line", "%s" % "lines", 2)
-
-_gettext("%s" % "line")  # no lint
-gettext_fn("%s" % "line")  # no lint
-
-
-# https://github.com/astral-sh/ruff/issues/19028
-import gettext as gettext_mod
-from gettext import (
-    gettext as gettext_fn,
-    ngettext as ngettext_fn,
-)
-
-name = "Guido"
-
-gettext_mod.gettext("Hello, %s!" % name)
-gettext_mod.ngettext("Hello, %s!" % name, "Hello, %ss!" % name, 2)
-gettext_fn("Hello, %s!" % name)
-ngettext_fn("Hello, %s!" % name, "Hello, %ss!" % name, 2)
-
-
-# https://github.com/astral-sh/ruff/issues/19028 - deferred translations
-def _(message): return message
-
-animals = [_("%s" %"mollusk"),
-           _("%s" %"albatross"),
-           _("%s" %"rat"),
-           _("%s" %"penguin"),
-           _("%s" %"python"),]
-
-del _
-
-for a in animals:
-    print(_(a))
-    print(_("%s" % a))
-
-
-# https://github.com/astral-sh/ruff/issues/19028
-#  - installed translations/i18n functions dynamically assigned to builtins
-import builtins
-
-gettext_mod.install("domain")
-builtins.__dict__["gettext"] = gettext_fn
-
-builtins._("%s" % "line")
-builtins.gettext("%s" % "line")
-builtins.ngettext("%s" % "line", "%s" % "lines", 2)
--- a/crates/ruff_linter/resources/test/fixtures/flake8_implicit_str_concat/ISC_syntax_error_2.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_implicit_str_concat/ISC_syntax_error_2.py
@@ -1,7 +0,0 @@
-# Regression test for https://github.com/astral-sh/ruff/issues/21023
-'' '
-"" ""
-'' '' '
-"" "" "
-f"" f"
-f"" f"" f"
--- a/crates/ruff_linter/resources/test/fixtures/flake8_pyi/PYI034.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_pyi/PYI034.py
@@ -359,29 +359,3 @@ class Generic5(list[PotentialTypeVar]):
    def __new__(cls: type[Generic5]) -> Generic5: ...
    def __enter__(self: Generic5) -> Generic5: ...

-
-# Test cases based on issue #20781 - metaclasses that triggers IsMetaclass::Maybe
-class MetaclassInWhichSelfCannotBeUsed5(type(Protocol)):
-    def __new__(
-        cls, name: str, bases: tuple[type[Any], ...], attrs: dict[str, Any], **kwargs: Any
-    ) -> MetaclassInWhichSelfCannotBeUsed5:
-        new_class = super().__new__(cls, name, bases, attrs, **kwargs)
-        return new_class
-
-
-import django.db.models.base
-
-
-class MetaclassInWhichSelfCannotBeUsed6(django.db.models.base.ModelBase):
-    def __new__(cls, name: str, bases: tuple[Any, ...], attrs: dict[str, Any], **kwargs: Any) -> MetaclassInWhichSelfCannotBeUsed6:
-        ...
-
-
-class MetaclassInWhichSelfCannotBeUsed7(django.db.models.base.ModelBase):
-    def __new__(cls, /, name: str, bases: tuple[object, ...], attrs: dict[str, object], **kwds: object) -> MetaclassInWhichSelfCannotBeUsed7:
-        ...
-
-
-class MetaclassInWhichSelfCannotBeUsed8(django.db.models.base.ModelBase):
-    def __new__(cls, name: builtins.str, bases: tuple, attributes: dict, /, **kw) -> MetaclassInWhichSelfCannotBeUsed8:
-        ...
--- a/crates/ruff_linter/resources/test/fixtures/flake8_pyi/PYI034.pyi
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_pyi/PYI034.pyi
@@ -252,28 +252,3 @@ from some_module import PotentialTypeVar
 class Generic5(list[PotentialTypeVar]):
    def __new__(cls: type[Generic5]) -> Generic5: ...
    def __enter__(self: Generic5) -> Generic5: ...
-
-
-# Test case based on issue #20781 - metaclass that triggers IsMetaclass::Maybe
-class MetaclassInWhichSelfCannotBeUsed5(type(Protocol)):
-    def __new__(
-        cls, name: str, bases: tuple[type[Any], ...], attrs: dict[str, Any], **kwargs: Any
-    ) -> MetaclassInWhichSelfCannotBeUsed5: ...
-
-
-import django.db.models.base
-
-
-class MetaclassInWhichSelfCannotBeUsed6(django.db.models.base.ModelBase):
-    def __new__(cls, name: str, bases: tuple[Any, ...], attrs: dict[str, Any], **kwargs: Any) -> MetaclassInWhichSelfCannotBeUsed6:
-        ...
-
-
-class MetaclassInWhichSelfCannotBeUsed7(django.db.models.base.ModelBase):
-    def __new__(cls, /, name: str, bases: tuple[object, ...], attrs: dict[str, object], **kwds: object) -> MetaclassInWhichSelfCannotBeUsed7:
-        ...
-
-
-class MetaclassInWhichSelfCannotBeUsed8(django.db.models.base.ModelBase):
-    def __new__(cls, name: builtins.str, bases: tuple, attributes: dict, /, **kw) -> MetaclassInWhichSelfCannotBeUsed8:
-        ...
--- a/crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM222.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM222.py
@@ -204,15 +204,3 @@ x = 1
 print(f"{x=}" or "bar")  # SIM222
 (lambda: 1) or True  # SIM222
 (i for i in range(1)) or "bar"  # SIM222
-
-# https://github.com/astral-sh/ruff/issues/21136
-def get_items():
-    return tuple(item for item in Item.objects.all()) or None  # OK
-
-
-def get_items_list():
-    return tuple([item for item in items]) or None  # OK
-
-
-def get_items_set():
-    return tuple({item for item in items}) or None  # OK
--- a/crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM911.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_simplify/SIM911.py
@@ -34,7 +34,3 @@ def foo():
 # https://github.com/astral-sh/ruff/issues/18776
 flag_stars = {}
 for country, stars in(zip)(flag_stars.keys(), flag_stars.values()):...
-
-# Regression test for https://github.com/astral-sh/ruff/issues/18778
-d = {}
-for country, stars in zip(d.keys(*x), d.values("hello")):...
--- a/crates/ruff_linter/resources/test/fixtures/flake8_type_checking/TC003.py
+++ b/crates/ruff_linter/resources/test/fixtures/flake8_type_checking/TC003.py
@@ -14,14 +14,3 @@ def f():
    import os

    print(os)
-
-
-# regression test for https://github.com/astral-sh/ruff/issues/21121
-from dataclasses import KW_ONLY, dataclass
-
-
-@dataclass
-class DataClass:
-    a: int
-    _: KW_ONLY  # should be an exception to TC003, even with future-annotations
-    b: int
--- a/crates/ruff_linter/resources/test/fixtures/pydoclint/DOC102_numpy.py
+++ b/crates/ruff_linter/resources/test/fixtures/pydoclint/DOC102_numpy.py
@@ -370,22 +370,3 @@ class Foo:
            The flag converter instance with all flags parsed.
        """
        return
-
-# OK
-def baz(x: int) -> int:
-    """
-    Show a `Warnings` DOC102 false positive.
-
-    Parameters
-    ----------
-    x : int
-
-    Warnings
-    --------
-    This function demonstrates a DOC102 false positive
-
-    Returns
-    -------
-    int
-    """
-    return x
--- a/crates/ruff_linter/resources/test/fixtures/pydoclint/DOC502_google.py
+++ b/crates/ruff_linter/resources/test/fixtures/pydoclint/DOC502_google.py
@@ -81,55 +81,3 @@ def calculate_speed(distance: float, time: float) -> float:
    except TypeError:
        print("Not a number? Shame on you!")
        raise
-
-
-# This should NOT trigger DOC502 because OSError is explicitly re-raised
-def f():
-    """Do nothing.
-
-    Raises:
-        OSError: If the OS errors.
-    """
-    try:
-        pass
-    except OSError as e:
-        raise e
-
-
-# This should NOT trigger DOC502 because OSError is explicitly re-raised with from None
-def g():
-    """Do nothing.
-
-    Raises:
-        OSError: If the OS errors.
-    """
-    try:
-        pass
-    except OSError as e:
-        raise e from None
-
-
-# This should NOT trigger DOC502 because ValueError is explicitly re-raised from tuple exception
-def h():
-    """Do nothing.
-
-    Raises:
-        ValueError: If something goes wrong.
-    """
-    try:
-        pass
-    except (ValueError, TypeError) as e:
-        raise e
-
-
-# This should NOT trigger DOC502 because TypeError is explicitly re-raised from tuple exception
-def i():
-    """Do nothing.
-
-    Raises:
-        TypeError: If something goes wrong.
-    """
-    try:
-        pass
-    except (ValueError, TypeError) as e:
-        raise e
--- a/crates/ruff_linter/resources/test/fixtures/pyflakes/F821_33.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyflakes/F821_33.py
@@ -1,21 +0,0 @@
-class C:
-    f = lambda self: __class__
-
-
-print(C().f().__name__)
-
-# Test: nested lambda
-class D:
-    g = lambda self: (lambda: __class__)
-
-
-print(D().g()().__name__)
-
-# Test: lambda outside class (should still fail)
-h = lambda: __class__
-
-# Test: lambda referencing module-level variable (should not be flagged as F821)
-import uuid
-
-class E:
-    uuid = lambda: str(uuid.uuid4())
--- a/crates/ruff_linter/resources/test/fixtures/pylint/stop_iteration_return.py
+++ b/crates/ruff_linter/resources/test/fixtures/pylint/stop_iteration_return.py
@@ -1,131 +0,0 @@
-"""Test cases for PLR1708 stop-iteration-return."""
-
-
-# Valid cases - should not trigger the rule
-def normal_function():
-    raise StopIteration  # Not a generator, should not trigger
-
-
-def normal_function_with_value():
-    raise StopIteration("value")  # Not a generator, should not trigger
-
-
-def generator_with_return():
-    yield 1
-    yield 2
-    return "finished"  # This is the correct way
-
-
-def generator_with_yield_from():
-    yield from [1, 2, 3]
-
-
-def generator_without_stop_iteration():
-    yield 1
-    yield 2
-    # No explicit termination
-
-
-def generator_with_other_exception():
-    yield 1
-    raise ValueError("something else")  # Different exception
-
-
-# Invalid cases - should trigger the rule
-def generator_with_stop_iteration():
-    yield 1
-    yield 2
-    raise StopIteration  # Should trigger
-
-
-def generator_with_stop_iteration_value():
-    yield 1
-    yield 2
-    raise StopIteration("finished")  # Should trigger
-
-
-def generator_with_stop_iteration_expr():
-    yield 1
-    yield 2
-    raise StopIteration(1 + 2)  # Should trigger
-
-
-def async_generator_with_stop_iteration():
-    yield 1
-    yield 2
-    raise StopIteration("async")  # Should trigger
-
-
-def nested_generator():
-    def inner_gen():
-        yield 1
-        raise StopIteration("inner")  # Should trigger
-
-    yield from inner_gen()
-
-
-def generator_in_class():
-    class MyClass:
-        def generator_method(self):
-            yield 1
-            raise StopIteration("method")  # Should trigger
-
-    return MyClass
-
-
-# Complex cases
-def complex_generator():
-    try:
-        yield 1
-        yield 2
-        raise StopIteration("complex")  # Should trigger
-    except ValueError:
-        yield 3
-    finally:
-        pass
-
-
-def generator_with_conditional_stop_iteration(condition):
-    yield 1
-    if condition:
-        raise StopIteration("conditional")  # Should trigger
-    yield 2
-
-
-# Edge cases
-def generator_with_bare_stop_iteration():
-    yield 1
-    raise StopIteration  # Should trigger (no arguments)
-
-
-def generator_with_stop_iteration_in_loop():
-    for i in range(5):
-        yield i
-        if i == 3:
-            raise StopIteration("loop")  # Should trigger
-
-
-# Should not trigger - different exceptions
-def generator_with_runtime_error():
-    yield 1
-    raise RuntimeError("not StopIteration")  # Should not trigger
-
-
-def generator_with_custom_exception():
-    yield 1
-    raise CustomException("custom")  # Should not trigger
-
-
-class CustomException(Exception):
-    pass
-
-
-# Generator comprehensions should not be affected
-list_comp = [x for x in range(10)]  # Should not trigger
-
-
-# Lambda in generator context
-def generator_with_lambda():
-    yield 1
-    func = lambda x: x  # Just a regular lambda
-    yield 2
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP029_2.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP029_2.py
@@ -1,5 +0,0 @@
-from .builtins import next
-from ..builtins import str
-from ...builtins import int
-from .builtins import next as _next
-
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_0.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_0.py
@@ -269,10 +269,3 @@ raise ValueError(
 # Not a valid type annotation but this test shouldn't result in a panic.
 # Refer: https://github.com/astral-sh/ruff/issues/11736
 x: "'{} + {}'.format(x, y)"
-
-# Regression https://github.com/astral-sh/ruff/issues/21000
-# Fix should parenthesize walrus
-if __name__ == "__main__":
-    number = 0
-    string = "{}".format(number := number + 1)
-    print(string)
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_2.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP032_2.py
@@ -26,8 +26,3 @@
 "{.real}".format({1, 2})
 "{.real}".format({1: 2, 3: 4})
 "{}".format((i for i in range(2)))
-
-# https://github.com/astral-sh/ruff/issues/21017
-"{.real}".format(1_2)
-"{0.real}".format(1_2)
-"{a.real}".format(a=1_2)
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP037_3.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP037_3.py
@@ -1,17 +0,0 @@
-"""
-Regression test for an ecosystem hit on
-https://github.com/astral-sh/ruff/pull/21125.
-
-We should mark all of the components of special dataclass annotations as
-runtime-required, not just the first layer.
-"""
-
-from dataclasses import dataclass
-from typing import ClassVar, Optional
-
-
-@dataclass(frozen=True)
-class EmptyCell:
-    _singleton: ClassVar[Optional["EmptyCell"]] = None
-    # the behavior of _singleton above should match a non-ClassVar
-    _doubleton: "EmptyCell"
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP046_2.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP046_2.py
@@ -1,13 +0,0 @@
-"""This is placed in a separate fixture as `TypeVar` needs to be imported
-from `typing_extensions` to support default arguments in Python version < 3.13.
-We verify that UP046 doesn't apply in this case.
-"""
-
-from typing import Generic
-from typing_extensions import TypeVar
-
-T = TypeVar("T", default=str)
-
-
-class DefaultTypeVar(Generic[T]):
-    var: T
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP047_0.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP047_0.py
--- a/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP047_1.py
+++ b/crates/ruff_linter/resources/test/fixtures/pyupgrade/UP047_1.py
@@ -1,12 +0,0 @@
-"""This is placed in a separate fixture as `TypeVar` needs to be imported
-from `typing_extensions` to support default arguments in Python version < 3.13.
-We verify that UP047 doesn't apply in this case.
-"""
-
-from typing_extensions import TypeVar
-
-T = TypeVar("T", default=int)
-
-
-def default_var(var: T) -> T:
-    return var
--- a/crates/ruff_linter/resources/test/fixtures/refurb/FURB101.py
+++ b/crates/ruff_linter/resources/test/fixtures/refurb/FURB101.py
@@ -125,18 +125,3 @@ with open(*filename, mode="r") as f:
 # `buffering`.
 with open(*filename, file="file.txt", mode="r") as f:
    x = f.read()
-
-# FURB101
-with open("file.txt", encoding="utf-8") as f:
-    contents: str = f.read()
-
-# FURB101 but no fix because it would remove the assignment to `x`
-with open("file.txt", encoding="utf-8") as f:
-    contents, x = f.read(), 2
-
-# FURB101 but no fix because it would remove the `process_contents` call
-with open("file.txt", encoding="utf-8") as f:
-    contents = process_contents(f.read())
-
-with open("file.txt", encoding="utf-8") as f:
-    contents: str = process_contents(f.read())
--- a/crates/ruff_linter/resources/test/fixtures/refurb/FURB103.py
+++ b/crates/ruff_linter/resources/test/fixtures/refurb/FURB103.py
@@ -145,11 +145,3 @@ with open("file.txt", "w") as f:
 with open("file.txt", "w") as f:
    for line in text:
        f.write(line)
-
-# See: https://github.com/astral-sh/ruff/issues/20785
-import json
-
-data = {"price": 100}
-
-with open("test.json", "wb") as f:
-    f.write(json.dumps(data, indent=4).encode("utf-8"))
--- a/crates/ruff_linter/resources/test/fixtures/refurb/FURB105.py
+++ b/crates/ruff_linter/resources/test/fixtures/refurb/FURB105.py
@@ -19,9 +19,6 @@ print("", *args, sep="")
 print("", **kwargs)
 print(sep="\t")
 print(sep=print(1))
-print(f"")
-print(f"", sep=",")
-print(f"", end="bar")

 # OK.

@@ -36,4 +33,3 @@ print("foo", "", sep=",")
 print("foo", "", "bar", "", sep=",")
 print("", "", **kwargs)
 print(*args, sep=",")
-print(f"foo")
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Douglas Creager	f33ca3a622	minimize more	2025-10-17 16:23:47 -04:00
Douglas Creager	a79ba2036b	propagate impossible deeply	2025-10-17 16:23:46 -04:00
Douglas Creager	d6f28b7428	keep all minimizations	2025-10-17 16:23:46 -04:00
Douglas Creager	9df9adae1e	minimize before display	2025-10-17 16:23:46 -04:00
Douglas Creager	eec4e2ed11	add impossible terminal	2025-10-17 16:23:46 -04:00
Douglas Creager	a44fbd6658	debug display simplification	2025-10-17 16:23:46 -04:00
Douglas Creager	22075d5ed7	debug	2025-10-17 16:23:46 -04:00
Douglas Creager	5d451979c4	shannon	2025-10-17 16:23:46 -04:00
Douglas Creager	73773b4ea4	more intersection replacements	2025-10-17 16:23:46 -04:00
Douglas Creager	7cfdc4a550	replace with intersection	2025-10-17 16:23:46 -04:00
Douglas Creager	2f0e7d6af7	fix pos/neg implication	2025-10-17 16:23:46 -04:00
Douglas Creager	8d44f8b7b5	remove old simplify	2025-10-17 16:23:46 -04:00
Douglas Creager	c0faa2dc3d	use simplify_new	2025-10-17 16:23:46 -04:00
Douglas Creager	f4fff7fb24	new simplification	2025-10-17 16:23:46 -04:00
Douglas Creager	a6bd68886f	xor	2025-10-17 16:23:46 -04:00
Douglas Creager	5c2c3f00ff	constraint implication check	2025-10-17 16:23:46 -04:00
Douglas Creager	5affc120b3	order typevars near each other	2025-10-17 16:23:46 -04:00
Douglas Creager	1e284933ec	normalize bounds	2025-10-17 16:23:46 -04:00
Douglas Creager	c529ee4f80	simplify individual clauses for display	2025-10-17 16:23:46 -04:00
Douglas Creager	f88ff62da5	add BDD graph display	2025-10-17 16:23:46 -04:00