Bump 0.15.9

CHANGELOG.md

@@ -1,5 +1,66 @@
 # Changelog
 
+## 0.15.9
+
+Released on 2026-04-02.
+
+### Preview features
+
+- \[`pyflakes`\] Flag annotated variable redeclarations as `F811` in preview mode ([#24244](https://github.com/astral-sh/ruff/pull/24244))
+- \[`ruff`\] Allow dunder-named assignments in non-strict mode for `RUF067` ([#24089](https://github.com/astral-sh/ruff/pull/24089))
+
+### Bug fixes
+
+- \[`flake8-errmsg`\] Avoid shadowing existing `msg` in fix for `EM101` ([#24363](https://github.com/astral-sh/ruff/pull/24363))
+- \[`flake8-simplify`\] Ignore pre-initialization references in `SIM113` ([#24235](https://github.com/astral-sh/ruff/pull/24235))
+- \[`pycodestyle`\] Fix `W391` fixes for consecutive empty notebook cells ([#24236](https://github.com/astral-sh/ruff/pull/24236))
+- \[`pyupgrade`\] Fix `UP008` nested class matching ([#24273](https://github.com/astral-sh/ruff/pull/24273))
+- \[`pyupgrade`\] Ignore strings with string-only escapes (`UP012`) ([#16058](https://github.com/astral-sh/ruff/pull/16058))
+- \[`ruff`\] `RUF072`: skip formfeeds on dedent ([#24308](https://github.com/astral-sh/ruff/pull/24308))
+- \[`ruff`\] Avoid re-using symbol in `RUF024` fix ([#24316](https://github.com/astral-sh/ruff/pull/24316))
+- \[`ruff`\] Parenthesize expression in `RUF050` fix ([#24234](https://github.com/astral-sh/ruff/pull/24234))
+- Disallow starred expressions as values of starred expressions ([#24280](https://github.com/astral-sh/ruff/pull/24280))
+
+### Rule changes
+
+- \[`flake8-simplify`\] Suppress `SIM105` for `except*` before Python 3.12 ([#23869](https://github.com/astral-sh/ruff/pull/23869))
+- \[`pyflakes`\] Extend `F507` to flag `%`-format strings with zero placeholders ([#24215](https://github.com/astral-sh/ruff/pull/24215))
+- \[`pyupgrade`\] `UP018` should detect more unnecessarily wrapped literals (UP018) ([#24093](https://github.com/astral-sh/ruff/pull/24093))
+- \[`pyupgrade`\] Fix `UP008` callable scope handling to support lambdas ([#24274](https://github.com/astral-sh/ruff/pull/24274))
+- \[`ruff`\] `RUF010`: Mark fix as unsafe when it deletes a comment ([#24270](https://github.com/astral-sh/ruff/pull/24270))
+
+### Formatter
+
+- Add `nested-string-quote-style` formatting option ([#24312](https://github.com/astral-sh/ruff/pull/24312))
+
+### Documentation
+
+- \[`flake8-bugbear`\] Clarify RUF071 fix safety for non-path string comparisons ([#24149](https://github.com/astral-sh/ruff/pull/24149))
+- \[`flake8-type-checking`\] Clarify import cycle wording for `TC001`/`TC002`/`TC003` ([#24322](https://github.com/astral-sh/ruff/pull/24322))
+
+### Other changes
+
+- Avoid rendering fix lines with trailing whitespace after `|` ([#24343](https://github.com/astral-sh/ruff/pull/24343))
+
+### Contributors
+
+- [@charliermarsh](https://github.com/charliermarsh)
+- [@MichaReiser](https://github.com/MichaReiser)
+- [@tranhoangtu-it](https://github.com/tranhoangtu-it)
+- [@dylwil3](https://github.com/dylwil3)
+- [@zsol](https://github.com/zsol)
+- [@renovate](https://github.com/renovate)
+- [@bitloi](https://github.com/bitloi)
+- [@danparizher](https://github.com/danparizher)
+- [@chinar-amrutkar](https://github.com/chinar-amrutkar)
+- [@second-ed](https://github.com/second-ed)
+- [@getehen](https://github.com/getehen)
+- [@Redovo1](https://github.com/Redovo1)
+- [@matthewlloyd](https://github.com/matthewlloyd)
+- [@zanieb](https://github.com/zanieb)
+- [@InSyncWithFoo](https://github.com/InSyncWithFoo)
+- [@RenzoMXD](https://github.com/RenzoMXD)
+
 ## 0.15.8
 
 Released on 2026-03-26.

README.md

@@ -152,8 +152,8 @@ 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/0.15.8/install.sh | sh
-powershell -c "irm https://astral.sh/ruff/0.15.8/install.ps1 | iex"
+curl -LsSf https://astral.sh/ruff/0.15.9/install.sh | sh
+powershell -c "irm https://astral.sh/ruff/0.15.9/install.ps1 | iex"
 ```
 
 You can also install Ruff via [Homebrew](https://formulae.brew.sh/formula/ruff), [Conda](https://anaconda.org/conda-forge/ruff),
@@ -186,7 +186,7 @@ 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: v0.15.8
+  rev: v0.15.9
   hooks:
     # Run the linter.
     - id: ruff-check

crates/ruff/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff"
-version = "0.15.8"
+version = "0.15.9"
 publish = true
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff_linter/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff_linter"
-version = "0.15.8"
+version = "0.15.9"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }

crates/ruff_wasm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ruff_wasm"
-version = "0.15.8"
+version = "0.15.9"
 publish = false
 authors = { workspace = true }
 edition = { workspace = true }

docs/formatter.md

@@ -306,7 +306,7 @@ support needs to be explicitly included by adding it to `types_or`:
 ```yaml title=".pre-commit-config.yaml"
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.15.8
+    rev: v0.15.9
     hooks:
       - id: ruff-format
         types_or: [python, pyi, jupyter, markdown]

docs/integrations.md

@@ -80,7 +80,7 @@ You can add the following configuration to `.gitlab-ci.yml` to run a `ruff forma
   stage: build
   interruptible: true
   image:
-    name: ghcr.io/astral-sh/ruff:0.15.8-alpine
+    name: ghcr.io/astral-sh/ruff:0.15.9-alpine
   before_script:
     - cd $CI_PROJECT_DIR
     - ruff --version
@@ -106,7 +106,7 @@ Ruff can be used as a [pre-commit](https://pre-commit.com) hook via [`ruff-pre-c
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.15.8
+  rev: v0.15.9
   hooks:
     # Run the linter.
     - id: ruff-check
@@ -119,7 +119,7 @@ To enable lint fixes, add the `--fix` argument to the lint hook:
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.15.8
+  rev: v0.15.9
   hooks:
     # Run the linter.
     - id: ruff-check
@@ -133,7 +133,7 @@ To avoid running on Jupyter Notebooks, remove `jupyter` from the list of allowed
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.15.8
+  rev: v0.15.9
   hooks:
     # Run the linter.
     - id: ruff-check

docs/tutorial.md

@@ -369,7 +369,7 @@ This tutorial has focused on Ruff's command-line interface, but Ruff can also be
 ```yaml
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
-  rev: v0.15.8
+  rev: v0.15.9
   hooks:
     # Run the linter.
     - id: ruff-check

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "ruff"
-version = "0.15.8"
+version = "0.15.9"
 description = "An extremely fast Python linter and code formatter, written in Rust."
 authors = [{ name = "Astral Software Inc.", email = "hey@astral.sh" }]
 readme = "README.md"

scripts/benchmarks/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "scripts"
-version = "0.15.8"
+version = "0.15.9"
 description = ""
 authors = ["Charles Marsh <charlie.r.marsh@gmail.com>"]