Sourced from ruff's releases.

0.14.9

Release Notes

Released on 2025-12-11.

Preview features

• [ruff] New RUF100 diagnostics for unused range suppressions (#21783)
• [pylint] Detect subclasses of builtin exceptions (PLW0133) (#21382)

Bug fixes

• Fix comment placement in lambda parameters (#21868)
• Skip over trivia tokens after re-lexing (#21895)
• [flake8-bandit] Fix false positive when using non-standard CSafeLoader path (S506). (#21830)
• [flake8-bugbear] Accept immutable slice default arguments (B008) (#21823)

Rule changes

• [pydocstyle] Suppress D417 for parameters with Unpack annotations (#21816)

Performance

• Use memchr for computing line indexes (#21838)

Documentation

• Document *.pyw is included by default in preview (#21885)
• Document range suppressions, reorganize suppression docs (#21884)
• Update mkdocs-material to 9.7.0 (Insiders now free) (#21797)

Contributors

• @​Avasam
• @​MichaReiser
• @​charliermarsh
• @​amyreese
• @​phongddo
• @​prakhar1144
• @​mahiro72
• @​ntBre
• @​LoicRiegel

Install ruff 0.14.9

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.14.9/ruff-installer.sh | sh

... (truncated)

Sourced from ruff's changelog.

0.14.9

Released on 2025-12-11.

Preview features

• [ruff] New RUF100 diagnostics for unused range suppressions (#21783)
• [pylint] Detect subclasses of builtin exceptions (PLW0133) (#21382)

Bug fixes

• Fix comment placement in lambda parameters (#21868)
• Skip over trivia tokens after re-lexing (#21895)
• [flake8-bandit] Fix false positive when using non-standard CSafeLoader path (S506). (#21830)
• [flake8-bugbear] Accept immutable slice default arguments (B008) (#21823)

Rule changes

• [pydocstyle] Suppress D417 for parameters with Unpack annotations (#21816)

Performance

• Use memchr for computing line indexes (#21838)

Documentation

• Document *.pyw is included by default in preview (#21885)
• Document range suppressions, reorganize suppression docs (#21884)
• Update mkdocs-material to 9.7.0 (Insiders now free) (#21797)

Contributors

• @​Avasam
• @​MichaReiser
• @​charliermarsh
• @​amyreese
• @​phongddo
• @​prakhar1144
• @​mahiro72
• @​ntBre
• @​LoicRiegel

• 3f63ea4 Prepare 0.14.9 release (#21927)
• c8851ec [ty] Defer all parameter and return type annotations (#21906)
• d442433 [ty] Fix workspace symbols to return members too (#21926)
• c055d66 Document range suppressions, reorganize suppression docs (#21884)
• 7a578ce Ignore ruff:isort like ruff:noqa in new suppressions (#21922)
• 34f7a04 [ty] Handle Definitions in SemanticModel::scope (#21919)
• c9fe4e2 [ty] Attach salsa db when running ide tests for easier debugging (#21917)
• fbeeb05 [ty] Don't show hover for expressions with no inferred type (#21924)
• 4fdb4e8 [ty] avoid unions of generic aliases of the same class in fixpoint (#21909)
• c548ef2 [ty] Squash false positive logs for failing to find builtins as a real module
• Additional commits viewable in compare view

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