Bump ruff from 0.15.17 to 0.15.18

[dependabot]

Bumps ruff from 0.15.17 to 0.15.18.

Release notes

Sourced from ruff's releases.

0.15.18

Release Notes

Released on 2026-06-18.

Preview features

• Handle nested ruff:ignore comments (#25791)
• Stop displaying severity in output (#26050)
• Use human-readable names in CLI output (#25937)
• Use human-readable names in LSP and playground diagnostics (#26058)
• [pydocstyle] Prevent property docstrings starting with verbs (D421) (#23775)
• [flake8-pyi] Extend PYI033 to Python files (#26129)

Bug fixes

• Detect equivalent numeric mapping keys (#26009)
• Detect mapping keys equivalent to booleans (#25982)
• Detect repeated signed and complex dictionary keys (#26007)

Rule changes

• [flake8-pyi] Rename PYI033 to legacy-type-comment (#26131)

Performance

• Use ThinVec for call keywords (#25999)
• Inline parser recovery context checks (#26038)
• Match parser keywords as bytes (#26037)
• Move value parsing out of lexing (#25360)

Server

• Render subdiagnostics and secondary annotations as related information (#26011)

Documentation

• Update fix availability for always-fixable rules (#26091)
• [flake8-tidy-imports] Add fix safety section (TID252) (#17491)

Parser

• Reject __debug__ lambda parameters (#26022)
• Reject _ as a match-pattern target (#25977)
• Reject multiple starred names in sequence patterns (#25976)
• Reject parenthesized star imports (#26021)
• Reject starred comprehension targets (#26023)
• Reject unparenthesized generator expressions in class bases (#25978)
• Reject yield expressions after commas (#26024)
• Validate function type parameter default order (#25981)

... (truncated)

Changelog

Sourced from ruff's changelog.

0.15.18

Released on 2026-06-18.

Preview features

• Handle nested ruff:ignore comments (#25791)
• Stop displaying severity in output (#26050)
• Use human-readable names in CLI output (#25937)
• Use human-readable names in LSP and playground diagnostics (#26058)
• [pydocstyle] Prevent property docstrings starting with verbs (D421) (#23775)
• [flake8-pyi] Extend PYI033 to Python files (#26129)

Bug fixes

• Detect equivalent numeric mapping keys (#26009)
• Detect mapping keys equivalent to booleans (#25982)
• Detect repeated signed and complex dictionary keys (#26007)

Rule changes

• [flake8-pyi] Rename PYI033 to legacy-type-comment (#26131)

Performance

• Use ThinVec for call keywords (#25999)
• Inline parser recovery context checks (#26038)
• Match parser keywords as bytes (#26037)
• Move value parsing out of lexing (#25360)

Server

• Render subdiagnostics and secondary annotations as related information (#26011)

Documentation

• Update fix availability for always-fixable rules (#26091)
• [flake8-tidy-imports] Add fix safety section (TID252) (#17491)

Parser

• Reject __debug__ lambda parameters (#26022)
• Reject _ as a match-pattern target (#25977)
• Reject multiple starred names in sequence patterns (#25976)
• Reject parenthesized star imports (#26021)
• Reject starred comprehension targets (#26023)
• Reject unparenthesized generator expressions in class bases (#25978)
• Reject yield expressions after commas (#26024)
• Validate function type parameter default order (#25981)

... (truncated)

Commits

• 6686f63 Bump 0.15.18 (#26135)
• efbb732 [ty] Suggest keyword-only arguments between variadic parameters (#26134)
• c256d5f [ty] Support Annotated[Any, ...] as a class base (#26133)
• 19a4bea [flake8-pyi] Rename PYI033 to legacy-type-comment (#26131)
• 1d9866c Bump ecosystem-analyzer commit (#26130)
• 8656c73 [ty] Compact indexed AST node storage (#25998)
• c17c8d9 [ty] Garbage-collect cached constraint sets (#26116)
• ef0fb8f [ty] Fix bound TypeVar default cycle recovery (#26124)
• b83c024 [flake8-pyi] Extend PYI033 to Python files in preview (#26129)
• e8a5e38 Update Rust crate zip to v8 (#26078)
• Additional commits viewable in compare view

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Note

Low Risk
Dev-only dependency pin with no runtime or application code changes; minor risk is CI/lint output or findings differing on the new Ruff patch.

Overview
Bumps the optional dev dependency ruff from 0.15.17 to 0.15.18 in pyproject.toml and refreshes poetry.lock (wheel hashes and lock content-hash). No application or lint configuration changes in this repo.

After upgrading, local/CI lint runs use Ruff 0.15.18 behavior (e.g. preview CLI/LSP output tweaks, dictionary-key duplicate detection fixes, and stricter parser checks in upstream release notes). Worth a quick ruff check pass if you rely on preview rules or tight CI gates.

^{Reviewed by Cursor Bugbot for commit 6210bc2. Bugbot is set up for automated code reviews on this repo. Configure here.}

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	pypi/​ruff@​0.15.17 ⏵ 0.15.18	+1

View full report