chore(deps): update ruff

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	Age	Confidence
astral-sh/ruff-pre-commit	repository	patch	v0.15.7 → v0.15.8
ruff (source, changelog)	dependency-groups	patch	==0.15.7 → ==0.15.9

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Release Notes

astral-sh/ruff-pre-commit (astral-sh/ruff-pre-commit)

v0.15.8

Compare Source

See: https://github.com/astral-sh/ruff/releases/tag/0.15.8

astral-sh/ruff (ruff)

v0.15.9

Released on 2026-04-02.

Preview features

• [pyflakes] Flag annotated variable redeclarations as F811 in preview mode (#​24244)
• [ruff] Allow dunder-named assignments in non-strict mode for RUF067 (#​24089)

Bug fixes

• [flake8-errmsg] Avoid shadowing existing msg in fix for EM101 (#​24363)
• [flake8-simplify] Ignore pre-initialization references in SIM113 (#​24235)
• [pycodestyle] Fix W391 fixes for consecutive empty notebook cells (#​24236)
• [pyupgrade] Fix UP008 nested class matching (#​24273)
• [pyupgrade] Ignore strings with string-only escapes (UP012) (#​16058)
• [ruff] RUF072: skip formfeeds on dedent (#​24308)
• [ruff] Avoid re-using symbol in RUF024 fix (#​24316)
• [ruff] Parenthesize expression in RUF050 fix (#​24234)
• Disallow starred expressions as values of starred expressions (#​24280)

Rule changes

• [flake8-simplify] Suppress SIM105 for except* before Python 3.12 (#​23869)
• [pyflakes] Extend F507 to flag %-format strings with zero placeholders (#​24215)
• [pyupgrade] UP018 should detect more unnecessarily wrapped literals (UP018) (#​24093)
• [pyupgrade] Fix UP008 callable scope handling to support lambdas (#​24274)
• [ruff] RUF010: Mark fix as unsafe when it deletes a comment (#​24270)

Formatter

• Add nested-string-quote-style formatting option (#​24312)

Documentation

• [flake8-bugbear] Clarify RUF071 fix safety for non-path string comparisons (#​24149)
• [flake8-type-checking] Clarify import cycle wording for TC001/TC002/TC003 (#​24322)

Other changes

• Avoid rendering fix lines with trailing whitespace after | (#​24343)

Contributors

• @​charliermarsh
• @​MichaReiser
• @​tranhoangtu-it
• @​dylwil3
• @​zsol
• @​renovate
• @​bitloi
• @​danparizher
• @​chinar-amrutkar
• @​second-ed
• @​getehen
• @​Redovo1
• @​matthewlloyd
• @​zanieb
• @​InSyncWithFoo
• @​RenzoMXD

v0.15.8

Compare Source

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
• @​chinar-amrutkar
• @​markjm
• @​RenzoMXD
• @​vivekkhimani
• @​seroperson
• @​moktamd
• @​charliermarsh
• @​ntBre
• @​zanieb
• @​dylwil3
• @​MichaReiser

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

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The artifact failure details are included below:

File name: uv.lock

Command failed: uv lock --upgrade-package ruff
Using CPython 3.13.12 interpreter at: /opt/containerbase/tools/python/3.13.12/bin/python3
  × No solution found when resolving dependencies for split (markers:
  │ python_full_version == '3.13.12' and sys_platform == 'win32'):
  ╰─▶ Because slippers==0.6.3 was published after the exclude newer time
      and your project depends on slippers==0.6.3, we can conclude that your
      project's requirements are unsatisfiable.
      And because your project requires admin[prod], we can conclude that your
      project's requirements are unsatisfiable.

      hint: The resolution failed for an environment that is not the current
      one, consider limiting the environments with `tool.uv.environments`.