Issues

• UP035 safe fix deletes comments inside a multi-line from typing import (...)

  bug
  astral-sh/ruff#29400 · Filter by author briksdaal opened on Oct 14, 2026
  2

• PLR5501 and PLW0120 safe fixes delete a trailing comment on the else: line

  bug
  astral-sh/ruff#29395 · Filter by author briksdaal opened on Oct 14, 2026

• missing-f-string-syntax (RUF027) fails to trigger for Logger.info and other log functions

  previewrule
  astral-sh/ruff#29375 · Filter by author mcrumiller opened on Oct 14, 2026
  2

• Should fix to first-word-uncapitalized (D403) be marked safe?

  fixes
  astral-sh/ruff#29368 · Filter by author JimMajor opened on Oct 14, 2026
  2

• PLE0643 (potential-index-error) counts a starred element of a list or tuple literal as one item

  bug
  astral-sh/ruff#29343 · Filter by author Zac-HD opened on Oct 14, 2026
  2

• unspecified-encoding (PLW1514) still raises in Python 3.15

  needs-decisionrule
  astral-sh/ruff#29326 · Filter by author GideonBear opened on Oct 13, 2026
  2

• new rule - abstractmethod with implementation

  needs-decisionrule
  astral-sh/ruff#29286 · Filter by author DetachHead opened on Oct 11, 2026
  3

• Rules for pandas 3.0 migration (chained assignment, object-dtype string checks)?

  rule
  astral-sh/ruff#29212 · Filter by author sai-sakalam opened on Oct 8, 2026
  6

• lazy-import-mismatch - use __lazy_modules__ when targeting python <3.15

  rule
  astral-sh/ruff#29175 · Filter by author DetachHead opened on Oct 7, 2026

• [PLR1716] boolean-chained-comparison does not trigger when operands or condition order are reversed

  rule
  astral-sh/ruff#29169 · Filter by author vivodi opened on Oct 7, 2026

• RFC: Use an internal regex abstraction to select regex-lite for WebAssembly targets

  needs-design
  astral-sh/ruff#29139 · Filter by author magic-akari opened on Oct 6, 2026

• alternative to W505 should measure docstring content, not source line width

  needs-decisionrule
  astral-sh/ruff#29129 · Filter by author andythomas opened on Oct 6, 2026

• unmatched-suppression-comment (RUF104) violations cannot be ignored

  bugsuppression
  astral-sh/ruff#29106 · Filter by author JulianJvn opened on Oct 5, 2026
  2

• I001 should ignore trailing whitespace

  question
  astral-sh/ruff#29104 · Filter by author relikd opened on Oct 4, 2026
  2

• OOM building on x86 with default LTO

  testing
  astral-sh/ruff#29087 · Filter by author WhyNotHugo opened on Oct 3, 2026
  1

• new rule - ban lazy imports in stubs

  rule
  astral-sh/ruff#29083 · Filter by author DetachHead opened on Oct 2, 2026
  1

• B014 does not detect redundant built-in exception subclasses

  previewruletype-inference
  astral-sh/ruff#29073 · Filter by author Yoruxyv opened on Oct 2, 2026
  4

• B008: False positive for frozen dataclass defaults with immutable fields

  rule
  astral-sh/ruff#29071 · Filter by author OreoLamp opened on Oct 2, 2026
  1

• typing-only-standard-library-import, typing-only-third-party-import, typing-only-first-party-import - lazy import quick fix on python 3.15 does not work when multiple names are imported

  fixes
  astral-sh/ruff#29068 · Filter by author DetachHead opened on Oct 2, 2026
  6

• [pydocstyle] Flag placeholder docstrings like `"""Function docstring."""

  needs-decisionrule
  astral-sh/ruff#29031 · Filter by author rohitsaboo opened on Oct 1, 2026

• [flake8-pytest-style] Flag tests whose only assertion is inside an if/for

  needs-decisionrule
  astral-sh/ruff#29030 · Filter by author rohitsaboo opened on Oct 1, 2026

• PLW0108 False positive when lambda executes a list element

  question
  astral-sh/ruff#28998 · Filter by author pkasprzyk-starfish opened on Sep 29, 2026
  4

• RUF031 incorrectly-parenthesized-tuple-in-subscript: false negative

  needs-decisionrule
  astral-sh/ruff#28945 · Filter by author spaceone opened on Sep 27, 2026
  4

• PLC0414 useless-import-alias: detect in *.pyi files - mypy stubgen generates the violation

  needs-decisionrule
  astral-sh/ruff#28942 · Filter by author spaceone opened on Sep 27, 2026
  3

• Known Deviations doc incorrect for multiline-strings

  documentation
  astral-sh/ruff#28930 · Filter by author cdunklau opened on Sep 27, 2026
  1