Sourced from ruff's releases.

0.15.3

Release Notes

Released on 2026-02-26.

Preview features

• Drop explicit support for .qmd file extension (#23572)

  This can now be enabled instead by setting the extension option:

  # ruff.toml
  extension = { qmd = "markdown" }
  pyproject.toml
  [tool.ruff]
  extension = { qmd = "markdown" }
  

• Include configured extensions in file discovery (#23400)

• [flake8-bandit] Allow suspicious imports in TYPE_CHECKING blocks (S401-S415) (#23441)

• [flake8-bugbear] Allow B901 in pytest hook wrappers (#21931)

• [flake8-import-conventions] Add missing conventions from upstream (ICN001, ICN002) (#21373)

• [pydocstyle] Add rule to enforce docstring section ordering (D420) (#23537)

• [pylint] Implement swap-with-temporary-variable (PLR1712) (#22205)

• [ruff] Add unnecessary-assign-before-yield (RUF070) (#23300)

• [ruff] Support file-level noqa in RUF102 (#23535)

• [ruff] Suppress diagnostic for invalid f-strings before Python 3.12 (RUF027) (#23480)

• [flake8-bandit] Don't flag BaseLoader/CBaseLoader as unsafe (S506) (#23510)

Bug fixes

• Avoid infinite loop between I002 and PYI025 (#23352)
• [pyflakes] Fix false positive for @overload from lint.typing-modules (F811) (#23357)
• [pyupgrade] Fix false positive for TypeVar default before Python 3.12 (UP046) (#23540)
• [pyupgrade] Fix handling of \N in raw strings (UP032) (#22149)

Rule changes

• Render sub-diagnostics in the GitHub output format (#23455)

... (truncated)

Sourced from ruff's changelog.

0.15.3

Released on 2026-02-26.

Preview features

• Drop explicit support for .qmd file extension (#23572)

  This can now be enabled instead by setting the extension option:

  # ruff.toml
  extension = { qmd = "markdown" }
  pyproject.toml
  [tool.ruff]
  extension = { qmd = "markdown" }
  

• Include configured extensions in file discovery (#23400)

• [flake8-bandit] Allow suspicious imports in TYPE_CHECKING blocks (S401-S415) (#23441)

• [flake8-bugbear] Allow B901 in pytest hook wrappers (#21931)

• [flake8-import-conventions] Add missing conventions from upstream (ICN001, ICN002) (#21373)

• [pydocstyle] Add rule to enforce docstring section ordering (D420) (#23537)

• [pylint] Implement swap-with-temporary-variable (PLR1712) (#22205)

• [ruff] Add unnecessary-assign-before-yield (RUF070) (#23300)

• [ruff] Support file-level noqa in RUF102 (#23535)

• [ruff] Suppress diagnostic for invalid f-strings before Python 3.12 (RUF027) (#23480)

• [flake8-bandit] Don't flag BaseLoader/CBaseLoader as unsafe (S506) (#23510)

Bug fixes

• Avoid infinite loop between I002 and PYI025 (#23352)
• [pyflakes] Fix false positive for @overload from lint.typing-modules (F811) (#23357)
• [pyupgrade] Fix false positive for TypeVar default before Python 3.12 (UP046) (#23540)
• [pyupgrade] Fix handling of \N in raw strings (UP032) (#22149)

Rule changes

• Render sub-diagnostics in the GitHub output format (#23455)

... (truncated)

• e5f2f36 Bump 0.15.3 (#23585)
• 0e19fc9 [ty] defer calculating conjunctions in narrowing constraints (#23552)
• 14bd2b2 [ty] support enum _value_ annotation (#22228)
• 6ff4da4 [ty] Remove many PartialOrd/Ord implementations (#23573)
• c2eb311 Drop explicit support for .qmd file extension (#23572)
• db48804 [ruff] Ignore "unknown" rule codes in RUF100 when RUF102 is enabled (#2...
• 85bb026 Try out assigned reviewers for ruff (#23571)
• 09de8ef [ty] Reimplement equivalence as mutual redundancy (#23428)
• 728609a [ruff] Suppress diagnostic for invalid f-strings before Python 3.12 (`RUF02...
• 9a4be59 Temporarily remove AlexWaygood from reviewbot config (#23567)
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