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0.14.0

Released on 2025-10-07.

Breaking changes

  • Update default and latest Python versions for 3.14 (#20725)

Preview features

  • [flake8-bugbear] Include certain guaranteed-mutable expressions: tuples, generators, and assignment expressions (B006) (#20024)
  • [refurb] Add fixes for FURB101 and FURB103 (#20520)
  • [ruff] Extend FA102 with listed PEP 585-compatible APIs (#20659)

Bug fixes

  • [flake8-annotations] Fix return type annotations to handle shadowed builtin symbols (ANN201, ANN202, ANN204, ANN205, ANN206) (#20612)
  • [flynt] Fix f-string quoting for mixed quote joiners (FLY002) (#20662)
  • [isort] Fix inserting required imports before future imports (I002) (#20676)
  • [ruff] Handle argfile expansion errors gracefully (#20691)
  • [ruff] Skip RUF051 if else/elif block is present (#20705)
  • [ruff] Improve handling of intermixed comments inside from-imports (#20561)

Documentation

  • [flake8-comprehensions] Clarify fix safety documentation (C413) (#20640)

Contributors

0.14.1

Released on 2025-10-16.

Preview features

  • [formatter] Remove parentheses around multiple exception types on Python 3.14+ (#20768)
  • [flake8-bugbear] Omit annotation in preview fix for B006 (#20877)
  • [flake8-logging-format] Avoid dropping implicitly concatenated pieces in the G004 fix (#20793)
  • [pydoclint] Implement docstring-extraneous-parameter (DOC102) (#20376)
  • [pyupgrade] Extend UP019 to detect typing_extensions.Text (UP019) (#20825)
  • [pyupgrade] Fix false negative for TypeVar with default argument in non-pep695-generic-class (UP046) (#20660)

Bug fixes

  • Fix false negatives in Truthiness::from_expr for lambdas, generators, and f-strings (#20704)
  • Fix syntax error false positives for escapes and quotes in f-strings (#20867)
  • Fix syntax error false positives on parenthesized context managers (#20846)
  • [fastapi] Fix false positives for path parameters that FastAPI doesn't recognize (FAST003) (#20687)
  • [flake8-pyi] Fix operator precedence by adding parentheses when needed (PYI061) (#20508)
  • [ruff] Suppress diagnostic for f-string interpolations with debug text (RUF010) (#20525)

Rule changes

  • [airflow] Add warning to airflow.datasets.DatasetEvent usage (AIR301) (#20551)
  • [flake8-bugbear] Mark B905 and B912 fixes as unsafe (#20695)
  • Use DiagnosticTag for more rules - changes display in editors (#20758,#20734)

Documentation

  • Update Python compatibility from 3.13 to 3.14 in README.md (#20852)
  • Update lint.flake8-type-checking.quoted-annotations docs (#20765)
  • Update setup instructions for Zed 0.208.0+ (#20902)
  • [flake8-datetimez] Clarify docs for several rules (#20778)
  • Fix typo in RUF015 description (#20873)

Other changes

  • Reduce binary size (#20863)
  • Improved error recovery for unclosed strings (including f- and t-strings) (#20848)

Contributors

0.14.2

Released on 2025-10-23.

Preview features

  • [flake8-gettext] Resolve qualified names and built-in bindings (INT001, INT002, INT003) (#19045)

Bug fixes

  • Avoid reusing nested, interpolated quotes before Python 3.12 (#20930)
  • Catch syntax errors in nested interpolations before Python 3.12 (#20949)
  • [fastapi] Handle ellipsis defaults in FAST002 autofix (#20810)
  • [flake8-simplify] Skip SIM911 when unknown arguments are present (#20697)
  • [pyupgrade] Always parenthesize assignment expressions in fix for f-string (UP032) (#21003)
  • [pyupgrade] Fix UP032 conversion for decimal ints with underscores (#21022)
  • [fastapi] Skip autofix for keyword and __debug__ path params (FAST003) (#20960)

Rule changes

  • [flake8-bugbear] Skip B905 and B912 for fewer than two iterables and no starred arguments (#20998)
  • [ruff] Use DiagnosticTag for more pyflakes and pandas rules (#20801)

CLI

  • Improve JSON output from ruff rule (#20168)

Documentation

  • Add source to testimonial (#20971)
  • Document when a rule was added (#21035)

Other changes

  • [syntax-errors] Name is parameter and global (#20426)
  • [syntax-errors] Alternative match patterns bind different names (#20682)

Contributors

0.14.3

Released on 2025-10-30.

Preview features

  • Respect --output-format with --watch (#21097)
  • [pydoclint] Fix false positive on explicit exception re-raising (DOC501, DOC502) (#21011)
  • [pyflakes] Revert to stable behavior if imports for module lie in alternate branches for F401 (#20878)
  • [pylint] Implement stop-iteration-return (PLR1708) (#20733)
  • [ruff] Add support for additional eager conversion patterns (RUF065) (#20657)

Bug fixes

  • Fix finding keyword range for clause header after statement ending with semicolon (#21067)
  • Fix syntax error false positive on nested alternative patterns (#21104)
  • [ISC001] Fix panic when string literals are unclosed (#21034)
  • [flake8-django] Apply DJ001 to annotated fields (#20907)
  • [flake8-pyi] Fix PYI034 to not trigger on metaclasses (PYI034) (#20881)
  • [flake8-type-checking] Fix TC003 false positive with future-annotations (#21125)
  • [pyflakes] Fix false positive for __class__ in lambda expressions within class definitions (F821) (#20564)
  • [pyupgrade] Fix false positive for TypeVar with default on Python <3.13 (UP046,UP047) (#21045)

Rule changes

  • Add missing docstring sections to the numpy list (#20931)
  • [airflow] Extend airflow.models..Param check (AIR311) (#21043)
  • [airflow] Warn that airflow....DAG.create_dagrun has been removed (AIR301) (#21093)
  • [refurb] Preserve digit separators in Decimal constructor (FURB157) (#20588)

Server

  • Avoid sending an unnecessary "clear diagnostics" message for clients supporting pull diagnostics (#21105)

Documentation

  • [flake8-bandit] Fix correct example for S308 (#21128)

Other changes

  • Clearer error message when line-length goes beyond threshold (#21072)

Contributors

0.14.4

Released on 2025-11-06.

Preview features

  • [formatter] Allow newlines after function headers without docstrings (#21110)
  • [formatter] Avoid extra parentheses for long match patterns with as captures (#21176)
  • [refurb] Expand fix safety for keyword arguments and Decimals (FURB164) (#21259)
  • [refurb] Preserve argument ordering in autofix (FURB103) (#20790)

Bug fixes

  • [server] Fix missing diagnostics for notebooks (#21156)
  • [flake8-bugbear] Ignore non-NFKC attribute names in B009 and B010 (#21131)
  • [refurb] Fix false negative for underscores before sign in Decimal constructor (FURB157) (#21190)
  • [ruff] Fix false positives on starred arguments (RUF057) (#21256)

Rule changes

  • [airflow] extend deprecated argument concurrency in airflow..DAG (AIR301) (#21220)

Documentation

  • Improve extend docs (#21135)
  • [flake8-comprehensions] Fix typo in C416 documentation (#21184)
  • Revise Ruff setup instructions for Zed editor (#20935)

Other changes

  • Make ruff analyze graph work with jupyter notebooks (#21161)

Contributors

0.14.5

Released on 2025-11-13.

Preview features

  • [flake8-simplify] Apply SIM113 when index variable is of type int (#21395)
  • [pydoclint] Fix false positive when Sphinx directives follow a "Raises" section (DOC502) (#20535)
  • [pydoclint] Support NumPy-style comma-separated parameters (DOC102) (#20972)
  • [refurb] Auto-fix annotated assignments (FURB101) (#21278)
  • [ruff] Ignore str() when not used for simple conversion (RUF065) (#21330)

Bug fixes

  • Fix syntax error false positive on alternative match patterns (#21362)
  • [flake8-simplify] Fix false positive for iterable initializers with generator arguments (SIM222) (#21187)
  • [pyupgrade] Fix false positive on relative imports from local .builtins module (UP029) (#21309)
  • [pyupgrade] Consistently set the deprecated tag (UP035) (#21396)

Rule changes

  • [refurb] Detect empty f-strings (FURB105) (#21348)

CLI

  • Add option to provide a reason to --add-noqa (#21294)
  • Add upstream linter URL to ruff linter --output-format=json (#21316)
  • Add color to --help (#21337)

Documentation

  • Add a new "Opening a PR" section to the contribution guide (#21298)
  • Added the PyScripter IDE to the list of "Who is using Ruff?" (#21402)
  • Update PyCharm setup instructions (#21409)
  • [flake8-annotations] Add link to allow-star-arg-any option (ANN401) (#21326)

Other changes

  • [configuration] Improve error message when line-length exceeds u16::MAX (#21329)

Contributors

0.14.6

Released on 2025-11-21.

Preview features

  • [flake8-bandit] Support new PySNMP API paths (S508, S509) (#21374)

Bug fixes

  • Adjust own-line comment placement between branches (#21185)
  • Avoid syntax error when formatting attribute expressions with outer parentheses, parenthesized value, and trailing comment on value (#20418)
  • Fix panic when formatting comments in unary expressions (#21501)
  • Respect fmt: skip for compound statements on a single line (#20633)
  • [refurb] Fix FURB103 autofix (#21454)
  • [ruff] Fix false positive for complex conversion specifiers in logging-eager-conversion (RUF065) (#21464)

Rule changes

  • [ruff] Avoid false positive on ClassVar reassignment (RUF012) (#21478)

CLI

  • Render hyperlinks for lint errors (#21514)
  • Add a ruff analyze option to skip over imports in TYPE_CHECKING blocks (#21472)

Documentation

  • Limit eglot-format hook to eglot-managed Python buffers (#21459)
  • Mention force-exclude in "Configuration > Python file discovery" (#21500)

Contributors

0.14.7

Released on 2025-11-28.

Preview features

  • [flake8-bandit] Handle string literal bindings in suspicious-url-open-usage (S310) (#21469)
  • [pylint] Fix PLR1708 false positives on nested functions (#21177)
  • [pylint] Fix suppression for empty dict without tuple key annotation (PLE1141) (#21290)
  • [ruff] Add rule RUF066 to detect unnecessary class properties (#21535)
  • [ruff] Catch more dummy variable uses (RUF052) (#19799)

Bug fixes

  • [server] Set severity for non-rule diagnostics (#21559)
  • [flake8-implicit-str-concat] Avoid invalid fix in (ISC003) (#21517)
  • [parser] Fix panic when parsing IPython escape command expressions (#21480)

CLI

  • Show partial fixability indicator in statistics output (#21513)

Contributors

0.14.8

Released on 2025-12-04.

Preview features

  • [flake8-bugbear] Catch yield expressions within other statements (B901) (#21200)
  • [flake8-use-pathlib] Mark fixes unsafe for return type changes (PTH104, PTH105, PTH109, PTH115) (#21440)

Bug fixes

  • Fix syntax error false positives for await outside functions (#21763)
  • [flake8-simplify] Fix truthiness assumption for non-iterable arguments in tuple/list/set calls (SIM222, SIM223) (#21479)

Documentation

  • Suggest using --output-file option in GitLab integration (#21706)

Other changes

  • [syntax-error] Default type parameter followed by non-default type parameter (#21657)

Contributors

0.14.9

Released on 2025-12-11.

Preview features

  • [ruff] New RUF100 diagnostics for unused range suppressions (#21783)
  • [pylint] Detect subclasses of builtin exceptions (PLW0133) (#21382)

Bug fixes

  • Fix comment placement in lambda parameters (#21868)
  • Skip over trivia tokens after re-lexing (#21895)
  • [flake8-bandit] Fix false positive when using non-standard CSafeLoader path (S506). (#21830)
  • [flake8-bugbear] Accept immutable slice default arguments (B008) (#21823)

Rule changes

  • [pydocstyle] Suppress D417 for parameters with Unpack annotations (#21816)

Performance

  • Use memchr for computing line indexes (#21838)

Documentation

  • Document *.pyw is included by default in preview (#21885)
  • Document range suppressions, reorganize suppression docs (#21884)
  • Update mkdocs-material to 9.7.0 (Insiders now free) (#21797)

Contributors

0.14.10

Released on 2025-12-18.

Preview features

  • [formatter] Fluent formatting of method chains (#21369)
  • [formatter] Keep lambda parameters on one line and parenthesize the body if it expands (#21385)
  • [flake8-implicit-str-concat] New rule to prevent implicit string concatenation in collections (ISC004) (#21972)
  • [flake8-use-pathlib] Make fixes unsafe when types change in compound statements (PTH104, PTH105, PTH109, PTH115) (#22009)
  • [refurb] Extend support for Path.open (FURB101, FURB103) (#21080)

Bug fixes

  • [pyupgrade] Fix parsing named Unicode escape sequences (UP032) (#21901)

Rule changes

  • [eradicate] Ignore ruff:disable and ruff:enable comments in ERA001 (#22038)
  • [flake8-pytest-style] Allow match and check keyword arguments without an expected exception type (PT010) (#21964)
  • [syntax-errors] Annotated name cannot be global (#20868)

Documentation

  • Add uv and ty to the Ruff README (#21996)
  • Document known lambda formatting deviations from Black (#21954)
  • Update setup.md (#22024)
  • [flake8-bandit] Fix broken link (S704) (#22039)

Other changes

  • Fix playground Share button showing "Copied!" before clipboard copy completes (#21942)

Contributors

0.14.11

Released on 2026-01-08.

Preview features

  • Consolidate diagnostics for matched disable/enable suppression comments (#22099)
  • Report diagnostics for invalid/unmatched range suppression comments (#21908)
  • [airflow] Passing positional argument into airflow.lineage.hook.HookLineageCollector.create_asset is not allowed (AIR303) (#22046)
  • [refurb] Mark FURB192 fix as always unsafe (#22210)
  • [ruff] Add non-empty-init-module (RUF067) (#22143)

Bug fixes

  • Fix GitHub format for multi-line diagnostics (#22108)
  • [flake8-unused-arguments] Mark **kwargs in TypeVar as used (ARG001) (#22214)

Rule changes

  • Add help: subdiagnostics for several Ruff rules that can sometimes appear to disagree with ty (#22331)
  • [pylint] Demote PLW1510 fix to display-only (#22318)
  • [pylint] Ignore identical members (PLR1714) (#22220)
  • [pylint] Improve diagnostic range for PLC0206 (#22312)
  • [ruff] Improve fix title for RUF102 invalid rule code (#22100)
  • [flake8-simplify]: Avoid unnecessary builtins import for SIM105 (#22358)

Configuration

  • Allow Python 3.15 as valid target-version value in preview (#22419)
  • Check required-version before parsing rules (#22410)
  • Include configured src directories when resolving graphs (#22451)

Documentation

  • Update T201 suggestion to not use root logger to satisfy LOG015 (#22059)
  • Fix iter example in unsafe fixes doc (#22118)
  • [flake8_print] better suggestion for basicConfig in T201 docs (#22101)
  • [pylint] Restore the fix safety docs for PLW0133 (#22211)
  • Fix Jupyter notebook discovery info for editors (#22447)

Contributors

0.14.12

Released on 2026-01-15.

Preview features

  • [flake8-blind-except] Allow more logging methods (BLE001) (#22057)
  • [ruff] Respect lint.pydocstyle.property-decorators in RUF066 (#22515)

Bug fixes

  • Fix configuration path in --show-settings (#22478)
  • Respect fmt: skip for multiple statements on the same logical line (#22119)

Rule changes

  • [pydocstyle] Update Rust crate imperative to v1.0.7 (D401) (#22519)
  • [isort] Insert imports in alphabetical order (I002) (#22493)

Documentation

  • Add llms.txt support for documentation (#22463)
  • Use prek in documentation and CI (#22505)
  • [flake8-pytest-style] Add check parameter example to PT017 docs (#22546)
  • [ruff] Make example error out-of-the-box (RUF103) (#22558)
  • [ruff] document RUF100 trailing comment fix behavior (#22479)

Other changes

  • wasm: Require explicit logging initialization (#22587)

Contributors

0.14.13

Released on 2026-01-15.

This is a follow-up release to 0.14.12. Because of an issue publishing the WASM packages, there is no GitHub release or Git tag for 0.14.12, although the package was published to PyPI. The contents of the 0.14.13 release are identical to 0.14.12.

0.14.14

Released on 2026-01-22.

Preview features

  • Preserve required parentheses in lambda bodies (#22747)
  • Combine range suppression code diagnostics (#22613)
  • [airflow] Second positional argument to Asset/Dataset should not be a dictionary (AIR303) (#22453)
  • [ruff] Detect duplicate entries in __all__ (RUF068) (#22114)

Bug fixes

  • [pyupgrade] Allow shadowing non-builtin bindings (UP029) (#22749)
  • [pyupgrade] Apply UP045 to string arguments of typing.cast (#22320)
  • [flake8-pie] Detect duplicated declared class fields in PIE794 (#22717)

Rule changes

Documentation

  • Add --exit-non-zero-on-format to formatter exit codes section (#22761)
  • Update contributing guide for adding a new rule (#22779)
  • [FastAPI] Document fix safety for FAST001 (#22655)
  • [flake8-async] Tweak explanation to focus on latency/efficiency tradeoff (ASYNC110) (#22715)
  • [pandas-vet] Make example error out-of-the-box (PD002) (#22561)
  • [refurb] Make the example work out of box (FURB101) (#22770)
  • [refurb] Make the example work out of box (FURB103) (#22769)

Contributors