Merge branch 'main' into hover-variance

Author: mtshiba

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ env:
   CARGO_TERM_COLOR: always
   RUSTUP_MAX_RETRIES: 10
   PACKAGE_NAME: ruff
-  PYTHON_VERSION: "3.13"
+  PYTHON_VERSION: "3.14"
   NEXTEST_PROFILE: ci
 
 jobs:
@@ -277,7 +277,8 @@ 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
-
+      # 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:
@@ -333,38 +334,14 @@ jobs:
       - name: "Run tests"
         run: cargo insta test --release --all-features --unreferenced reject --test-runner nextest
 
-  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
-    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 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"
-        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
+  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 }}
     needs: determine_changes
     if: ${{ !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     timeout-minutes: 20
@@ -375,8 +352,6 @@ jobs:
       - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
       - name: "Install Rust toolchain"
         run: rustup show
-      - name: "Install mold"
-        uses: rui314/setup-mold@725a8794d15fc7563f59595bd9556495c0564878 # v1
       - name: "Install cargo nextest"
         uses: taiki-e/install-action@522492a8c115f1b6d4d318581f09638e9442547b # v2.62.21
         with:
@@ -498,9 +473,10 @@ jobs:
           chmod +x "${DOWNLOAD_PATH}/ruff"
 
           (
-            uvx \
+            uv run \
             --python="${PYTHON_VERSION}" \
-            --from=./python/py-fuzzer \
+            --project=./python/py-fuzzer \
+            --locked \
             fuzz \
             --test-executable="${DOWNLOAD_PATH}/ruff" \
             --bin=ruff \
@@ -518,6 +494,7 @@ jobs:
         with:
           persist-credentials: false
       - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
       - name: "Install Rust toolchain"
         run: rustup component add rustfmt
       # Run all code generation scripts, and verify that the current output is
@@ -532,6 +509,11 @@ 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"
@@ -549,7 +531,8 @@ jobs:
           persist-credentials: false
       - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
         with:
-          python-version: ${{ env.PYTHON_VERSION }}
+          # TODO: figure out why `ruff-ecosystem` crashes on Python 3.14
+          python-version: "3.13"
 
       - uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
         name: Download comparison Ruff binary
@@ -666,7 +649,7 @@ jobs:
       - 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: 20
+    timeout-minutes: ${{ github.repository == 'astral-sh/ruff' && 5 || 20 }}
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
@@ -694,15 +677,16 @@ jobs:
           chmod +x "${PWD}/ty" "${NEW_TY}/ty"
 
           (
-            uvx \
+            uv run \
             --python="${PYTHON_VERSION}" \
-            --from=./python/py-fuzzer \
+            --project=./python/py-fuzzer \
+            --locked \
             fuzz \
             --test-executable="${NEW_TY}/ty" \
             --baseline-executable="${PWD}/ty" \
             --only-new-bugs \
             --bin=ty \
-            0-500
+            0-1000
           )
 
   cargo-shear:

.github/workflows/daily_fuzz.yaml

@@ -48,9 +48,10 @@ jobs:
         run: |
           # shellcheck disable=SC2046
           (
-            uvx \
-            --python=3.12 \
-            --from=./python/py-fuzzer \
+            uv run \
+            --python=3.14 \
+            --project=./python/py-fuzzer \
+            --locked \
             fuzz \
             --test-executable=target/debug/ruff \
             --bin=ruff \

CHANGELOG.md

@@ -1,5 +1,63 @@
 # Changelog
 
+## 0.14.1
+
+Released on 2025-10-16.
+
+### Preview features
+
+- [formatter] Remove parentheses around multiple exception types on Python 3.14+ ([#20768](https://github.com/astral-sh/ruff/pull/20768))
+- \[`flake8-bugbear`\] Omit annotation in preview fix for `B006` ([#20877](https://github.com/astral-sh/ruff/pull/20877))
+- \[`flake8-logging-format`\] Avoid dropping implicitly concatenated pieces in the `G004` fix ([#20793](https://github.com/astral-sh/ruff/pull/20793))
+- \[`pydoclint`\] Implement `docstring-extraneous-parameter` (`DOC102`) ([#20376](https://github.com/astral-sh/ruff/pull/20376))
+- \[`pyupgrade`\] Extend `UP019` to detect `typing_extensions.Text` (`UP019`) ([#20825](https://github.com/astral-sh/ruff/pull/20825))
+- \[`pyupgrade`\] Fix false negative for `TypeVar` with default argument in `non-pep695-generic-class` (`UP046`) ([#20660](https://github.com/astral-sh/ruff/pull/20660))
+
+### Bug fixes
+
+- Fix false negatives in `Truthiness::from_expr` for lambdas, generators, and f-strings ([#20704](https://github.com/astral-sh/ruff/pull/20704))
+- Fix syntax error false positives for escapes and quotes in f-strings ([#20867](https://github.com/astral-sh/ruff/pull/20867))
+- Fix syntax error false positives on parenthesized context managers ([#20846](https://github.com/astral-sh/ruff/pull/20846))
+- \[`fastapi`\] Fix false positives for path parameters that FastAPI doesn't recognize (`FAST003`) ([#20687](https://github.com/astral-sh/ruff/pull/20687))
+- \[`flake8-pyi`\] Fix operator precedence by adding parentheses when needed (`PYI061`) ([#20508](https://github.com/astral-sh/ruff/pull/20508))
+- \[`ruff`\] Suppress diagnostic for f-string interpolations with debug text (`RUF010`) ([#20525](https://github.com/astral-sh/ruff/pull/20525))
+
+### Rule changes
+
+- \[`airflow`\] Add warning to `airflow.datasets.DatasetEvent` usage (`AIR301`) ([#20551](https://github.com/astral-sh/ruff/pull/20551))
+- \[`flake8-bugbear`\] Mark `B905` and `B912` fixes as unsafe ([#20695](https://github.com/astral-sh/ruff/pull/20695))
+- Use `DiagnosticTag` for more rules - changes display in editors ([#20758](https://github.com/astral-sh/ruff/pull/20758),[#20734](https://github.com/astral-sh/ruff/pull/20734))
+
+### Documentation
+
+- Update Python compatibility from 3.13 to 3.14 in README.md ([#20852](https://github.com/astral-sh/ruff/pull/20852))
+- Update `lint.flake8-type-checking.quoted-annotations` docs ([#20765](https://github.com/astral-sh/ruff/pull/20765))
+- Update setup instructions for Zed 0.208.0+ ([#20902](https://github.com/astral-sh/ruff/pull/20902))
+- \[`flake8-datetimez`\] Clarify docs for several rules ([#20778](https://github.com/astral-sh/ruff/pull/20778))
+- Fix typo in `RUF015` description ([#20873](https://github.com/astral-sh/ruff/pull/20873))
+
+### Other changes
+
+- Reduce binary size ([#20863](https://github.com/astral-sh/ruff/pull/20863))
+- Improved error recovery for unclosed strings (including f- and t-strings) ([#20848](https://github.com/astral-sh/ruff/pull/20848))
+
+### Contributors
+
+- [@ntBre](https://github.com/ntBre)
+- [@Paillat-dev](https://github.com/Paillat-dev)
+- [@terror](https://github.com/terror)
+- [@pieterh-oai](https://github.com/pieterh-oai)
+- [@MichaReiser](https://github.com/MichaReiser)
+- [@TaKO8Ki](https://github.com/TaKO8Ki)
+- [@ageorgou](https://github.com/ageorgou)
+- [@danparizher](https://github.com/danparizher)
+- [@mgaitan](https://github.com/mgaitan)
+- [@augustelalande](https://github.com/augustelalande)
+- [@dylwil3](https://github.com/dylwil3)
+- [@Lee-W](https://github.com/Lee-W)
+- [@injust](https://github.com/injust)
+- [@CarrotManMatt](https://github.com/CarrotManMatt)
+
 ## 0.14.0
 
 Released on 2025-10-07.

Cargo.lock

@@ -148,8 +148,8 @@ curl -LsSf https://astral.sh/ruff/install.sh | sh
 powershell -c "irm https://astral.sh/ruff/install.ps1 | iex"
 
 # For a specific version.
-curl -LsSf https://astral.sh/ruff/0.14.0/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.14.0/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),
@@ -182,7 +182,7 @@ Ruff can also be used as a [pre-commit](https://pre-commit.com/) hook via [`ruff
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.14.0
+  rev: v0.14.1
   hooks:
     # Run the linter.
     - id: ruff-check

README.md

@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.14.0"
+version = "0.14.1"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff_linter"
-version = "0.14.0"
+version = "0.14.1"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff_linter/Cargo.toml

@@ -723,6 +723,7 @@ impl SemanticSyntaxContext for Checker<'_> {
             | SemanticSyntaxErrorKind::IrrefutableCasePattern(_)
             | SemanticSyntaxErrorKind::SingleStarredAssignment
             | SemanticSyntaxErrorKind::WriteToDebug(_)
+            | SemanticSyntaxErrorKind::DifferentMatchPatternBindings
             | SemanticSyntaxErrorKind::InvalidExpression(..)
             | SemanticSyntaxErrorKind::DuplicateMatchKey(_)
             | SemanticSyntaxErrorKind::DuplicateMatchClassAttribute(_)

crates/ruff_linter/src/checkers/ast/mod.rs

@@ -748,3 +748,7 @@
 
 # Regression tests for https://github.com/astral-sh/ruff/issues/15536
 print(f"{ {}, 1, }")
+
+
+# The inner quotes should not be changed to double quotes before Python 3.12
+f"{f'''{'nested'} inner'''} outer"

crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/fstring.py

@@ -144,6 +144,12 @@ pub(crate) enum InterpolatedStringState {
     ///
     /// The containing `FStringContext` is the surrounding f-string context.
     InsideInterpolatedElement(InterpolatedStringContext),
+    /// The formatter is inside more than one nested f-string, such as in `nested` in:
+    ///
+    /// ```py
+    /// f"{f'''{'nested'} inner'''} outer"
+    /// ```
+    NestedInterpolatedElement(InterpolatedStringContext),
     /// The formatter is outside an f-string.
     #[default]
     Outside,
@@ -152,12 +158,18 @@ pub(crate) enum InterpolatedStringState {
 impl InterpolatedStringState {
     pub(crate) fn can_contain_line_breaks(self) -> Option<bool> {
         match self {
-            InterpolatedStringState::InsideInterpolatedElement(context) => {
+            InterpolatedStringState::InsideInterpolatedElement(context)
+            | InterpolatedStringState::NestedInterpolatedElement(context) => {
                 Some(context.is_multiline())
             }
             InterpolatedStringState::Outside => None,
         }
     }
+
+    /// Returns `true` if the interpolated string state is [`NestedInterpolatedElement`].
+    pub(crate) fn is_nested(self) -> bool {
+        matches!(self, Self::NestedInterpolatedElement(..))
+    }
 }
 
 /// The position of a top-level statement in the module.