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@github-actions github-actions released this 16 Oct 19:51
· 3163 commits to main since this release
v0.1.0
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Learn about vigilant mode.

Read the blog post about this release.

Read Ruff's new versioning policy.

This is the first release which uses the CHANGELOG file — change entries will be listed there and in each GitHub Release.

Changes

Breaking changes

  • Unsafe fixes are no longer displayed or applied without opt-in (#7769)
  • Drop formatting specific rules from the default set (#7900)
  • The deprecated format setting has been removed (#7984)
    • The format setting cannot be used to configure the output format, use output-format instead
    • The RUFF_FORMAT environment variable is ignored, use RUFF_OUTPUT_FORMAT instead
    • The --format option has been removed from ruff check, use --output-format instead

Rule changes

  • Extend reimplemented-starmap (FURB140) to catch calls with a single and starred argument (#7768)
  • Improve cases covered by RUF015 (#7848)
  • Update SIM15 to allow open followed by close (#7916)
  • Respect msgspec.Struct default-copy semantics in RUF012 (#7786)
  • Add sqlalchemy methods to `flake8-boolean-trap`` exclusion list (#7874)
  • Add fix for PLR1714 (#7910)
  • Add fix for PIE804 (#7884)
  • Add fix for PLC0208 (#7887)
  • Add fix for PYI055 (#7886)
  • Update non-pep695-type-alias to require --unsafe-fixes outside of stub files (#7836)
  • Improve fix message for UP018 (#7913)
  • Update PLW3201 to support Enum sunder names (#7987)

Preview features

  • Only show warnings for empty preview selectors when enabling rules (#7842)
  • Add unnecessary-key-check to simplify key in dct and dct[key] to dct.get(key) (#7895)
  • Add assignment-in-assert to prevent walrus expressions in assert statements (#7856)
  • [refurb] Add single-item-membership-test (FURB171) (#7815)
  • [pylint] Add and-or-ternary (R1706) (#7811)

New rules are added in preview.

Configuration

  • Add unsafe-fixes setting (#7769)
  • Add extend-safe-fixes and extend-unsafe-fixes for promoting and demoting fixes (#7841)

CLI

  • Added --unsafe-fixes option for opt-in to display and apply unsafe fixes (#7769)
  • Fix use of deprecated --format option in warning (#7837)
  • Show changed files when running under --check (#7788)
  • Write summary messages to stderr when fixing via stdin instead of omitting them (#7838)
  • Update fix summary message in check --diff to include unsafe fix hints (#7790)
  • Add notebook cell field to JSON output format (#7664)
  • Rename applicability levels to Safe, Unsafe, and Display (#7843)

Bug fixes

  • Fix bug where f-strings were allowed in match pattern literal (#7857)
  • Fix SIM110 with a yield in the condition (#7801)
  • Preserve trailing comments in C414 fixes (#7775)
  • Check sequence type before triggering unnecessary-enumerate len suggestion (#7781)
  • Use correct start location for class/function clause header (#7802)
  • Fix incorrect fixes for SIM101 (#7798)
  • Format comment before parameter default correctly (#7870)
  • Fix E251 false positive inside f-strings (#7894)
  • Allow bindings to be created and referenced within annotations (#7885)
  • Show per-cell diffs when analyzing notebooks over stdin (#7789)
  • Avoid curly brace escape in f-string format spec (#7780)
  • Fix lexing single-quoted f-string with multi-line format spec (#7787)
  • Consider nursery rules to be in-preview for ruff rule (#7812)
  • Report precise location for invalid conversion flag (#7809)
  • Visit pattern match guard as a boolean test (#7911)
  • Respect --unfixable in ISC rules (#7917)
  • Fix edge case with PIE804 (#7922)
  • Show custom message in PTH118 for Path.joinpath with starred arguments (#7852)
  • Fix false negative in outdated-version-block when using greater than comparisons (#7920)
  • Avoid converting f-strings within Django gettext calls (#7898)
  • Fix false positive in PLR6301 (#7933)
  • Treat type aliases as typing-only expressions e.g. resolves false positive in TCH004 (#7968)
  • Resolve cache-dir relative to project root (#7962)
  • Respect subscripted base classes in type-checking rules e.g. resolves false positive in TCH003 (#7954)
  • Fix JSON schema limit for line-length (#7883)
  • Fix commented-out coalesce keyword (#7876)

Documentation

  • Document reimplemented-starmap performance effects (#7846)
  • Default to following the system dark/light mode (#7888)
  • Add documentation for fixes (#7901)
  • Fix typo in docs of PLR6301 (#7831)
  • Update UP038 docs to note that it results in slower code (#7872)
  • crlf -> cr-lf (#7766)
  • Add an example of an unsafe fix (#7924)
  • Fix documented examples for unnecessary-subscript-reversal (#7774)
  • Correct error in tuple example in ruff formatter docs (#7822)
  • Add versioning policy to documentation (#7923)
  • Fix invalid code in FURB177 example (#7832)

Formatter

  • Less scary ruff format message (#7867)
  • Remove spaces from import statements (#7859)
  • Formatter quoting for f-strings with triple quotes (#7826)
  • Update ruff_python_formatter generate.py comment (#7850)
  • Document one-call chaining deviation (#7767)
  • Allow f-string modifications in line-shrinking cases (#7818)
  • Add trailing comment deviation to README (#7827)
  • Add trailing zero between dot and exponential (#7956)
  • Force parentheses for power operations in unary expressions (#7955)

Playground

  • Fix playground Quick Fix action (#7824)

Contributors

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