Sourced from ruff's releases.

0.15.8

Release Notes

Released on 2026-03-26.

Preview features

• [ruff] New rule unnecessary-if (RUF050) (#24114)
• [ruff] New rule useless-finally (RUF072) (#24165)
• [ruff] New rule f-string-percent-format (RUF073): warn when using % operator on an f-string (#24162)
• [pyflakes] Recognize frozendict as a builtin for Python 3.15+ (#24100)

Bug fixes

• [flake8-async] Use fully-qualified anyio.lowlevel import in autofix (ASYNC115) (#24166)
• [flake8-bandit] Check tuple arguments for partial paths in S607 (#24080)
• [pyflakes] Skip undefined-name (F821) for conditionally deleted variables (#24088)
• E501/W505/formatter: Exclude nested pragma comments from line width calculation (#24071)
• Fix %foo? parsing in IPython assignment expressions (#24152)
• analyze graph: resolve string imports that reference attributes, not just modules (#24058)

Rule changes

• [eradicate] ignore ty: ignore comments in ERA001 (#24192)
• [flake8-bandit] Treat sys.executable as trusted input in S603 (#24106)
• [flake8-self] Recognize Self annotation and self assignment in SLF001 (#24144)
• [pyflakes] F507: Fix false negative for non-tuple RHS in %-formatting (#24142)
• [refurb] Parenthesize generator arguments in FURB142 fixer (#24200)

Performance

• Speed up diagnostic rendering (#24146)

Server

• Warn when Markdown files are skipped due to preview being disabled (#24150)

Documentation

• Clarify extend-ignore and extend-select settings documentation (#24064)
• Mention AI policy in PR template (#24198)

Other changes

• Use trusted publishing for NPM packages (#24171)

Contributors

• @​bitloi
• @​Sim-hu

... (truncated)

Sourced from ruff's changelog.

0.15.8

Released on 2026-03-26.

Preview features

• [ruff] New rule unnecessary-if (RUF050) (#24114)
• [ruff] New rule useless-finally (RUF072) (#24165)
• [ruff] New rule f-string-percent-format (RUF073): warn when using % operator on an f-string (#24162)
• [pyflakes] Recognize frozendict as a builtin for Python 3.15+ (#24100)

Bug fixes

• [flake8-async] Use fully-qualified anyio.lowlevel import in autofix (ASYNC115) (#24166)
• [flake8-bandit] Check tuple arguments for partial paths in S607 (#24080)
• [pyflakes] Skip undefined-name (F821) for conditionally deleted variables (#24088)
• E501/W505/formatter: Exclude nested pragma comments from line width calculation (#24071)
• Fix %foo? parsing in IPython assignment expressions (#24152)
• analyze graph: resolve string imports that reference attributes, not just modules (#24058)

Rule changes

• [eradicate] ignore ty: ignore comments in ERA001 (#24192)
• [flake8-bandit] Treat sys.executable as trusted input in S603 (#24106)
• [flake8-self] Recognize Self annotation and self assignment in SLF001 (#24144)
• [pyflakes] F507: Fix false negative for non-tuple RHS in %-formatting (#24142)
• [refurb] Parenthesize generator arguments in FURB142 fixer (#24200)

Performance

• Speed up diagnostic rendering (#24146)

Server

• Warn when Markdown files are skipped due to preview being disabled (#24150)

Documentation

• Clarify extend-ignore and extend-select settings documentation (#24064)
• Mention AI policy in PR template (#24198)

Other changes

• Use trusted publishing for NPM packages (#24171)

Contributors

• @​bitloi
• @​Sim-hu
• @​mvanhorn

... (truncated)

• c2a8815 Release 0.15.8 (#24217)
• d444d52 [ty] Infer lambda expressions with Callable type context (#22633)
• 9622285 [ty] Autocomplete arguments if in arguments node (#24167)
• d812662 Use the release environment in publish-docs (#24214)
• eda2355 [ty] Show Final source in final assignment diagnostic (#24194)
• 929eb52 [ty] Enforce Final attribute assignment rules for annotated and augmented wri...
• 34998be [ty] Fix typo in comment (#24211)
• 560aca0 [ty] Minor simplifications to some benchmark code (#24209)
• 683bae5 [ty] Track non-terminal-call constraints in global scope (#23245)
• 4704c2a [ty] Remove unnecessary intermediate collection in `StaticClassLiteral::field...
• Additional commits viewable in compare view