0.12.5

Release Notes

Preview features

• [flake8-use-pathlib] Add autofix for PTH101, PTH104, PTH105, PTH121 (#19404)
• [ruff] Support byte strings (RUF055) (#18926)

Bug fixes

• Fix unreachable panic in parser (#19183)
• [flake8-pyi] Skip fix if all Union members are None (PYI016) (#19416)
• [perflint] Parenthesize generator expressions (PERF401) (#19325)
• [pylint] Handle empty comments after line continuation (PLR2044) (#19405)

Rule changes

• [pep8-naming] Fix N802 false positives for CGIHTTPRequestHandler and SimpleHTTPRequestHandler (#19432)

Contributors

• @AlexWaygood
• @BurntSushi
• @CodeMan62
• @Gankra
• @MichaReiser
• @UnboundVariable
• @chirizxc
• @danparizher
• @dcreager
• @dhruvmanila
• @dylwil3
• @github-actions
• @ibraheemdev
• @ntBre
• @oconnor663
• @renovate
• @sharkdp
• @soundsonacid
• @thejchap

Install ruff 0.12.5

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.12.5/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.12.5/ruff-installer.ps1 | iex"

Download ruff 0.12.5

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

0.12.4

Release Notes

Preview features

• [flake8-type-checking, pyupgrade, ruff] Add from __future__ import annotations when it would allow new fixes (TC001, TC002, TC003, UP037, RUF013) (#19100)
• [flake8-use-pathlib] Add autofix for PTH109 (#19245)
• [pylint] Detect indirect pathlib.Path usages for unspecified-encoding (PLW1514) (#19304)

Bug fixes

• [flake8-bugbear] Fix B017 false negatives for keyword exception arguments (#19217)
• [flake8-use-pathlib] Fix false negative on direct Path() instantiation (PTH210) (#19388)
• [flake8-django] Fix DJ008 false positive for abstract models with type-annotated abstract field (#19221)
• [isort] Fix I002 import insertion after docstring with multiple string statements (#19222)
• [isort] Treat form feed as valid whitespace before a semicolon (#19343)
• [pydoclint] Fix SyntaxError from fixes with line continuations (D201, D202) (#19246)
• [refurb] FURB164 fix should validate arguments and should usually be marked unsafe (#19136)

Rule changes

• [flake8-use-pathlib] Skip single dots for invalid-pathlib-with-suffix (PTH210) on versions >= 3.14 (#19331)
• [pep8_naming] Avoid false positives on standard library functions with uppercase names (N802) (#18907)
• [pycodestyle] Handle brace escapes for t-strings in logical lines (#19358)
• [pylint] Extend invalid string character rules to include t-strings (#19355)
• [ruff] Allow strict kwarg when checking for starmap-zip (RUF058) in Python 3.14+ (#19333)

Documentation

• [flake8-type-checking] Make TC010 docs example more realistic (#19356)
• Make more documentation examples error out-of-the-box (#19288,#19272,#19291,#19296,#19292,#19295,#19297,#19309)

Contributors

• @AlexWaygood
• @BurntSushi
• @Gankra
• @MatthewMckee4
• @MeGaGiGaGon
• @MichaReiser
• @UnboundVariable
• @chirizxc
• @close2code-palm
• @corneliusroemer
• @danparizher
• @dcreager
• @dhruvmanila
• @dylwil3
• @github-actions
• @ntBre
• @oconnor663
• @renovate
• @sharkdp
• @soundsonacid
• @w0nder1ng
• @zanieb

Install ruff 0.12.4

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.12.4/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.12.4/ruff-installer.ps1 | iex"

Download ruff 0.12.4

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

0.12.3

Release Notes

Preview features

• [flake8-bugbear] Support non-context-manager calls in B017 (#19063)
• [flake8-use-pathlib] Add autofixes for PTH100, PTH106, PTH107, PTH108, PTH110, PTH111, PTH112, PTH113, PTH114, PTH115, PTH117, PTH119, PTH120 (#19213)
• [flake8-use-pathlib] Add autofixes for PTH203, PTH204, PTH205 (#18922)

Bug fixes

• [flake8-return] Fix false-positive for variables used inside nested functions in RET504 (#18433)
• Treat form feed as valid whitespace before a line continuation (#19220)
• [flake8-type-checking] Fix syntax error introduced by fix (TC008) (#19150)
• [pyupgrade] Keyword arguments in super should suppress the UP008 fix (#19131)

Documentation

• [flake8-pyi] Make example error out-of-the-box (PYI007, PYI008) (#19103)
• [flake8-simplify] Make example error out-of-the-box (SIM116) (#19111)
• [flake8-type-checking] Make example error out-of-the-box (TC001) (#19151)
• [flake8-use-pathlib] Make example error out-of-the-box (PTH210) (#19189)
• [pycodestyle] Make example error out-of-the-box (E272) (#19191)
• [pycodestyle] Make example not raise unnecessary SyntaxError (E114) (#19190)
• [pydoclint] Make example error out-of-the-box (DOC501) (#19218)
• [pylint, pyupgrade] Fix syntax errors in examples (PLW1501, UP028) (#19127)
• [pylint] Update missing-maxsplit-arg docs and error to suggest proper usage (PLC0207) (#18949)
• [flake8-bandit] Make example error out-of-the-box (S412) (#19241)

Contributors

• @AlexWaygood
• @BurntSushi
• @Gankra
• @InSyncWithFoo
• @LaBatata101
• @MatthewMckee4
• @MeGaGiGaGon
• @MichaReiser
• @NamelessGO
• @UnboundVariable
• @abhijeetbodas2001
• @carljm
• @charliermarsh
• @chirizxc
• @danparizher
• @dhruvmanila
• @fdosani
• @github-actions
• @ibraheemdev
• @iyakushev
• @junhsonjb
• @ntBre
• @renovate
• @sharkdp
• @soundsonacid
• @thejchap
• @zanieb

Install ruff 0.12.3

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.12.3/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.12.3/ruff-installer.ps1 | iex"

Download ruff 0.12.3

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

0.12.2

Release Notes

Preview features

• [flake8-pyi] Expand Optional[A] to A | None (PYI016) (#18572)
• [pyupgrade] Mark UP008 fix safe if no comments are in range (#18683)

Bug fixes

• [flake8-comprehensions] Fix C420 to prepend whitespace when needed (#18616)
• [perflint] Fix PERF403 panic on attribute or subscription loop variable (#19042)
• [pydocstyle] Fix D413 infinite loop for parenthesized docstring (#18930)
• [pylint] Fix PLW0108 autofix introducing a syntax error when the lambda's body contains an assignment expression (#18678)
• [refurb] Fix false positive on empty tuples (FURB168) (#19058)
• [ruff] Allow more field calls from attrs (RUF009) (#19021)
• [ruff] Fix syntax error introduced for an empty string followed by a u-prefixed string (UP025) (#18899)

Rule changes

• [flake8-executable] Allow uvx in shebang line (EXE003) (#18967)
• [pandas] Avoid flagging PD002 if pandas is not imported (#18963)
• [pyupgrade] Avoid PEP-604 unions with typing.NamedTuple (UP007, UP045) (#18682)

Documentation

• Document link between import-outside-top-level (PLC0415) and lint.flake8-tidy-imports.banned-module-level-imports (#18733)
• Fix description of the format.skip-magic-trailing-comma example (#19095)
• [airflow] Make AIR302 example error out-of-the-box (#18988)
• [airflow] Make AIR312 example error out-of-the-box (#18989)
• [flake8-annotations] Make ANN401 example error out-of-the-box (#18974)
• [flake8-async] Make ASYNC100 example error out-of-the-box (#18993)
• [flake8-async] Make ASYNC105 example error out-of-the-box (#19002)
• [flake8-async] Make ASYNC110 example error out-of-the-box (#18975)
• [flake8-async] Make ASYNC210 example error out-of-the-box (#18977)
• [flake8-async] Make ASYNC220, ASYNC221, and ASYNC222 examples error out-of-the-box (#18978)
• [flake8-async] Make ASYNC251 example error out-of-the-box (#18990)
• [flake8-bandit] Make S201 example error out-of-the-box (#19017)
• [flake8-bandit] Make S604 and S609 examples error out-of-the-box (#19049)
• [flake8-bugbear] Make B028 example error out-of-the-box (#19054)
• [flake8-bugbear] Make B911 example error out-of-the-box (#19051)
• [flake8-datetimez] Make DTZ011 example error out-of-the-box (#19055)
• [flake8-datetimez] Make DTZ901 example error out-of-the-box (#19056)
• [flake8-pyi] Make PYI032 example error out-of-the-box (#19061)
• [flake8-pyi] Make example error out-of-the-box (PYI014, PYI015) (#19097)
• [flake8-pyi] Make example error out-of-the-box (PYI042) (#19101)
• [flake8-pyi] Make example error out-of-the-box (PYI059) (#19080)
• [flake8-pyi] Make example error out-of-the-box (PYI062) (#19079)
• [flake8-pytest-style] Make example error out-of-the-box (PT023) (#19104)
• [flake8-pytest-style] Make example error out-of-the-box (PT030) (#19105)
• [flake8-quotes] Make example error out-of-the-box (Q003) (#19106)
• [flake8-simplify] Make example error out-of-the-box (SIM110) (#19113)
• [flake8-simplify] Make example error out-of-the-box (SIM113) (#19109)
• [flake8-simplify] Make example error out-of-the-box (SIM401) (#19110)
• [pyflakes] Fix backslash in docs (F621) (#19098)
• [pylint] Fix PLC0415 example (#18970)

Contributors

• @AlexWaygood
• @Avasam
• @BurntSushi
• @CodeMan62
• @Gankra
• @InSyncWithFoo
• @LaBatata101
• @LeanderCS
• @MatthewMckee4
• @MeGaGiGaGon
• @MichaReiser
• @NamelessGO
• @adriencaccia
• @carljm
• @danparizher
• @dcreager
• @dhruvmanila
• @dylwil3
• @github-actions
• @ibraheemdev
• @jordyjwilliams
• @lubaskinc0de
• @med1844
• @mtshiba
• @ntBre
• @renovate
• @robsdedude
• @sharkdp
• @yairp03
• @zanieb

Install ruff 0.12.2

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.12.2/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.12.2/ruff-installer.ps1 | iex"

Download ruff 0.12.2

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	[checksum]...

0.12.1

Release Notes

Preview features

• [flake8-errmsg] Extend EM101 to support byte strings (#18867)
• [flake8-use-pathlib] Add autofix for PTH202 (#18763)
• [pygrep-hooks] Add AsyncMock methods to invalid-mock-access (PGH005) (#18547)
• [pylint] Ignore __init__.py files in (PLC0414) (#18400)
• [ruff] Trigger RUF037 for empty string and byte strings (#18862)
• [formatter] Fix missing blank lines before decorated classes in .pyi files (#18888)

Bug fixes

• Avoid generating diagnostics with per-file ignores (#18801)
• Handle parenthesized arguments in remove_argument (#18805)
• [flake8-logging] Avoid false positive for exc_info=True outside logger.exception (LOG014) (#18737)
• [flake8-pytest-style] Enforce pytest import for decorators (#18779)
• [flake8-pytest-style] Mark autofix for PT001 and PT023 as unsafe if there's comments in the decorator (#18792)
• [flake8-pytest-style] PT001/PT023 fix makes syntax error on parenthesized decorator (#18782)
• [flake8-raise] Make fix unsafe if it deletes comments (RSE102) (#18788)
• [flake8-simplify] Fix SIM911 autofix creating a syntax error (#18793)
• [flake8-simplify] Fix false negatives for shadowed bindings (SIM910, SIM911) (#18794)
• [flake8-simplify] Preserve original behavior for except () and bare except (SIM105) (#18213)
• [flake8-pyi] Fix PYI041's fix causing TypeError with None | None | ... (#18637)
• [perflint] Fix PERF101 autofix creating a syntax error and mark autofix as unsafe if there are comments in the list call expr (#18803)
• [perflint] Fix false negative in PERF401 (#18866)
• [pylint] Avoid flattening nested min/max when outer call has single argument (PLW3301) (#16885)
• [pylint] Fix PLC2801 autofix creating a syntax error (#18857)
• [pylint] Mark PLE0241 autofix as unsafe if there's comments in the base classes (#18832)
• [pylint] Suppress PLE2510/PLE2512/PLE2513/PLE2514/PLE2515 autofix if the text contains an odd number of backslashes (#18856)
• [refurb] Detect more exotic float literals in FURB164 (#18925)
• [refurb] Fix FURB163 autofix creating a syntax error for yield expressions (#18756)
• [refurb] Mark FURB129 autofix as unsafe if there's comments in the readlines call (#18858)
• [ruff] Fix false positives and negatives in RUF010 (#18690)
• Fix casing of analyze.direction variant names (#18892)

Rule changes

• Fix f-string interpolation escaping in generated fixes (#18882)
• [flake8-return] Mark RET501 fix unsafe if comments are inside (#18780)
• [flake8-async] Fix detection for large integer sleep durations in ASYNC116 rule (#18767)
• [flake8-async] Mark autofix for ASYNC115 as unsafe if the call expression contains comments (#18753)
• [flake8-bugbear] Mark autofix for B004 as unsafe if the hasattr call expr contains comments (#18755)
• [flake8-comprehension] Mark autofix for C420 as unsafe if there's comments inside the dict comprehension (#18768)
• [flake8-comprehensions] Handle template strings for comprehension fixes (#18710)
• [flake8-future-annotations] Add autofix (FA100) (#18903)
• [pyflakes] Mark F504/F522/F523 autofix as unsafe if there's a call with side effect (#18839)
• [pylint] Allow fix with comments and document performance implications (PLW3301) (#18936)
• [pylint] Detect more exotic NaN literals in PLW0177 (#18630)
• [pylint] Fix PLC1802 autofix creating a syntax error and mark autofix as unsafe if there's comments in the len call (#18836)
• [pyupgrade] Extend version detection to include sys.version_info.major (UP036) (#18633)
• [ruff] Add lint rule RUF064 for calling chmod with non-octal integers (#18541)
• [ruff] Added cls.__dict__.get('__annotations__') check (RUF063) (#18233)
• [ruff] Frozen dataclass default should be valid (RUF009) (#18735)

Server

• Consider virtual path for various server actions (#18910)

Documentation

• Add fix safety sections (#18940,#18841,#18802,#18837,#18800,#18415,#18853,#18842)
• Use updated pre-commit id (#18718)
• [perflint] Small docs improvement to PERF401 (#18786)
• [pyupgrade]: Use super(), not __super__ in error messages (UP008) (#18743)
• [flake8-pie] Small docs fix to PIE794 (#18829)
• [flake8-pyi] Correct collections-named-tuple example to use PascalCase assignment (#16884)
• [flake8-pie] Add note on type checking benefits to unnecessary-dict-kwargs (PIE804) (#18666)
• [pycodestyle] Clarify PEP 8 relationship to whitespace-around-operator rules (#18870)

Other changes

• Disallow newlines in format specifiers of single quoted f- or t-strings (#18708)
• [flake8-logging] Add fix safety section to LOG002 (#18840)
• [pyupgrade] Add fix safety section to UP010 (#18838)

Contributors

• @AlexWaygood
• @Andrej730
• @BurntSushi
• @GideonBear
• @InSyncWithFoo
• @JosiahKane
• @LaBatata101
• @LyricalToxic
• @MeGaGiGaGon
• @MichaReiser
• @RazerM
• @VascoSch92
• @alpaylan
• @carljm
• @charliermarsh
• @chirizxc
• @danparizher
• @dcreager
• @dericcrago
• @dhruvmanila
• @dylwil3
• @gopoto
• @hmvp
• @krikera
• @lubaskinc0de
• @mashehu
• @med1844
• @njhearp
• @ntBre
• @renovate
• @robsdedude
• @sharkdp
• @sobolevn
• @suneettipirneni
• @yunchipang
• @zanieb

Install ruff 0.12.1

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.12.1/ruff-installer.sh | sh

Install prebuilt binaries via powershell scrip...

0.12.0

Release Notes

Check out the blog post for a migration guide and overview of the changes!

Breaking changes

• Detection of more syntax errors

  Ruff now detects version-related syntax errors, such as the use of the match
  statement on Python versions before 3.10, and syntax errors emitted by
  CPython's compiler, such as irrefutable match patterns before the final
  case arm.

• New default Python version handling for syntax errors

  Ruff will default to the latest supported Python version (3.13) when
  checking for the version-related syntax errors mentioned above to prevent
  false positives in projects without a Python version configured. The default
  in all other cases, like applying lint rules, is unchanged and remains at the
  minimum supported Python version (3.9).

• Updated f-string formatting

  Ruff now formats multi-line f-strings with format specifiers to avoid adding a
  line break after the format specifier. This addresses a change to the Python
  grammar in version 3.13.4 that made such a line break a syntax error.

• rust-toolchain.toml is no longer included in source distributions

  The rust-toolchain.toml is used to specify a higher Rust version than Ruff's
  minimum supported Rust version (MSRV) for development and building release
  artifacts. However, when present in source distributions, it would also cause
  downstream package maintainers to pull in the same Rust toolchain, even if
  their available toolchain was MSRV-compatible.

Removed Rules

The following rules have been removed:

• suspicious-xmle-tree-usage (S320)

Deprecated Rules

The following rules have been deprecated:

• pandas-df-variable-name

Stabilization

The following rules have been stabilized and are no longer in preview:

• for-loop-writes (FURB122)
• check-and-remove-from-set (FURB132)
• verbose-decimal-constructor (FURB157)
• fromisoformat-replace-z (FURB162)
• int-on-sliced-str (FURB166)
• exc-info-outside-except-handler (LOG014)
• import-outside-top-level (PLC0415)
• unnecessary-dict-index-lookup (PLR1733)
• nan-comparison (PLW0177)
• eq-without-hash (PLW1641)
• pytest-parameter-with-default-argument (PT028)
• pytest-warns-too-broad (PT030)
• pytest-warns-with-multiple-statements (PT031)
• invalid-formatter-suppression-comment (RUF028)
• dataclass-enum (RUF049)
• class-with-mixed-type-vars (RUF053)
• unnecessary-round (RUF057)
• starmap-zip (RUF058)
• non-pep604-annotation-optional (UP045)
• non-pep695-generic-class (UP046)
• non-pep695-generic-function (UP047)
• private-type-parameter (UP049)

The following behaviors have been stabilized:

• collection-literal-concatenation (RUF005) now recognizes slices, in
  addition to list literals and variables.
• The fix for readlines-in-for (FURB129) is now marked as always safe.
• if-else-block-instead-of-if-exp (SIM108) will now further simplify
  expressions to use or instead of an if expression, where possible.
• unused-noqa (RUF100) now checks for file-level noqa comments as well
  as inline comments.
• subprocess-without-shell-equals-true (S603) now accepts literal strings,
  as well as lists and tuples of literal strings, as trusted input.
• boolean-type-hint-positional-argument (FBT001) now applies to types that
  include bool, like bool | int or typing.Optional[bool], in addition to
  plain bool annotations.
• non-pep604-annotation-union (UP007) has now been split into two rules.
  UP007 now applies only to typing.Union, while
  non-pep604-annotation-optional (UP045) checks for use of
  typing.Optional. UP045 has also been stabilized in this release, but you
  may need to update existing include, ignore, or noqa settings to
  accommodate this change.

Preview features

• [ruff] Check for non-context-manager use of pytest.raises, pytest.warns, and pytest.deprecated_call (RUF061) (#17368)
• [syntax-errors] Raise unsupported syntax error for template strings prior to Python 3.14 (#18664)

Bug fixes

• Add syntax error when conversion flag does not immediately follow exclamation mark (#18706)
• Add trailing space around readlines (#18542)
• Fix \r and \r\n handling in t- and f-string debug texts (#18673)
• Hug closing } when f-string expression has a format specifier (#18704)
• [flake8-pyi] Avoid syntax error in the case of starred and keyword arguments (PYI059) (#18611)
• [flake8-return] Fix RET504 autofix generating a syntax error (#18428)
• [pep8-naming] Suppress fix for N804 and N805 if the recommended name is already used (#18472)
• [pycodestyle] Avoid causing a syntax error in expressions spanning multiple lines (E731) (#18479)
• [pyupgrade] Suppress UP008 if super is shadowed (#18688)
• [refurb] Parenthesize lambda and ternary expressions (FURB122, FURB142) (#18592)
• [ruff] Handle extra arguments to deque (RUF037) (#18614)
• [ruff] Preserve parentheses around deque in fix for unnecessary-empty-iterable-within-deque-call (RUF037) (#18598)
• [ruff] Validate arguments before offering a fix (RUF056) (#18631)
• [ruff] Skip fix for RUF059 if dummy name is already bound (#18509)
• [pylint] Fix PLW0128 to check assignment targets in square brackets and after asterisks (#18665)

Rule changes

• Fix false positive on mutations in return statements (B909) (#18408)
• Treat ty: comments as pragma comments (#18532)
• [flake8-pyi] Apply custom-typevar-for-self to string annotations (PYI019) (#18311)
• [pyupgrade] Don't offer a fix for Optional[None] (UP007, UP045) (#18545)
• [pyupgrade] Fix super(__class__, self) detection (UP008) (#18478)
• [refurb] Make the fix for FURB163 unsafe for log2, log10, *args, and deleted comments (#18645)

Server

• Support cancellation requests (#18627)

Documentation

• Drop confusing second * from glob pattern example for per-file-target-version (#18709)
• Update Neovim configuration examples (#18491)
• [pylint] De-emphasize __hash__ = Parent.__hash__ (PLW1641) ([#18613](https...

0.11.13

Release Notes

Preview features

• [airflow] Add unsafe fix for module moved cases (AIR301,AIR311,AIR312,AIR302) (#18367,#18366,#18363,#18093)
• [refurb] Add coverage of set and frozenset calls (FURB171) (#18035)
• [refurb] Mark FURB180 fix unsafe when class has bases (#18149)

Bug fixes

• [perflint] Fix missing parentheses for lambda and ternary conditions (PERF401, PERF403) (#18412)
• [pyupgrade] Apply UP035 only on py313+ for get_type_hints() (#18476)
• [pyupgrade] Make fix unsafe if it deletes comments (UP004,UP050) (#18393, #18390)

Rule changes

• [fastapi] Avoid false positive for class dependencies (FAST003) (#18271)

Documentation

• Update editor setup docs for Neovim and Vim (#18324)

Other changes

• Support Python 3.14 template strings (t-strings) in formatter and parser (#17851)

Contributors

• @AlexWaygood
• @BurntSushi
• @InSyncWithFoo
• @Lee-W
• @MatthewMckee4
• @MichaReiser
• @Viicos
• @abhijeetbodas2001
• @carljm
• @chirizxc
• @dcreager
• @dhruvmanila
• @dylwil3
• @github-actions
• @ibraheemdev
• @lipefree
• @mtshiba
• @naslundx
• @ntBre
• @otakutyrant
• @renovate
• @robsdedude
• @sharkdp
• @twentyone212121
• @zanieb

Install ruff 0.11.13

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.11.13/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.11.13/ruff-installer.ps1 | iex"

Download ruff 0.11.13

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

0.11.12

Release Notes

Preview features

• [airflow] Revise fix titles (AIR3) (#18215)
• [pylint] Implement missing-maxsplit-arg (PLC0207) (#17454)
• [pyupgrade] New rule UP050 (useless-class-metaclass-type) (#18334)
• [flake8-use-pathlib] Replace os.symlink with Path.symlink_to (PTH211) (#18337)

Bug fixes

• [flake8-bugbear] Ignore __debug__ attribute in B010 (#18357)
• [flake8-async] Fix anyio.sleep argument name (ASYNC115, ASYNC116) (#18262)
• [refurb] Fix FURB129 autofix generating invalid syntax (#18235)

Rule changes

• [flake8-implicit-str-concat] Add autofix for ISC003 (#18256)
• [pycodestyle] Improve the diagnostic message for E712 (#18328)
• [flake8-2020] Fix diagnostic message for != comparisons (YTT201) (#18293)
• [pyupgrade] Make fix unsafe if it deletes comments (UP010) (#18291)

Documentation

• Simplify rules table to improve readability (#18297)
• Update editor integrations link in README (#17977)
• [flake8-bugbear] Add fix safety section (B006) (#17652)

Contributors

• @AlexWaygood
• @CodeMan62
• @InSyncWithFoo
• @Kalmaegi
• @LaBatata101
• @Lee-W
• @MaddyGuthridge
• @MatthewMckee4
• @MichaReiser
• @Vasanth-96
• @carljm
• @charliermarsh
• @chirizxc
• @dcreager
• @dhruvmanila
• @dsherret
• @dylwil3
• @felixscherz
• @fennr
• @j178
• @lipefree
• @maxmynter
• @ntBre
• @otakutyrant
• @renovate
• @sharkdp
• @thejchap
• @vjurczenia

Install ruff 0.11.12

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.11.12/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.11.12/ruff-installer.ps1 | iex"

Download ruff 0.11.12

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

0.11.11

Release Notes

Preview features

• [airflow] Add autofixes for AIR302 and AIR312 (#17942)
• [airflow] Move rules from AIR312 to AIR302 (#17940)
• [airflow] Update AIR301 and AIR311 with the latest Airflow implementations (#17985)
• [flake8-simplify] Enable fix in preview mode (SIM117) (#18208)

Bug fixes

• Fix inconsistent formatting of match-case on [] and _ (#18147)
• [pylint] Fix PLW1514 not recognizing the encoding positional argument of codecs.open (#18109)

CLI

• Add full option name in formatter warning (#18217)

Documentation

• Fix rendering of admonition in docs (#18163)
• [flake8-print] Improve print/pprint docs for T201 and T203 (#18130)
• [flake8-simplify] Add fix safety section (SIM110,SIM210) (#18114,#18100)
• [pylint] Fix docs example that produced different output (PLW0603) (#18216)

Contributors

• @AlexWaygood
• @BradonZhang
• @BurntSushi
• @CodeMan62
• @InSyncWithFoo
• @LaBatata101
• @Lee-W
• @Mathemmagician
• @MatthewMckee4
• @MichaReiser
• @TomerBin
• @VascoSch92
• @adamaaronson
• @brainwane
• @brandtbucher
• @carljm
• @dcreager
• @dhruvmanila
• @dragon-dxw
• @felixscherz
• @kiran-4444
• @maxmynter
• @ntBre
• @renovate
• @sharkdp
• @thejchap
• @twentyone212121

Install ruff 0.11.11

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.11.11/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.11.11/ruff-installer.ps1 | iex"

Download ruff 0.11.11

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum

0.11.10

Release Notes

Preview features

• [ruff] Implement a recursive check for RUF060 (#17976)
• [airflow] Enable autofixes for AIR301 and AIR311 (#17941)
• [airflow] Apply try catch guard to all AIR3 rules (#17887)
• [airflow] Extend AIR311 rules (#17913)

Bug fixes

• [flake8-bugbear] Ignore B028 if skip_file_prefixes is present (#18047)
• [flake8-pie] Mark autofix for PIE804 as unsafe if the dictionary contains comments (#18046)
• [flake8-simplify] Correct behavior for str.split/rsplit with maxsplit=0 (SIM905) (#18075)
• [flake8-simplify] Fix SIM905 autofix for rsplit creating a reversed list literal (#18045)
• [flake8-use-pathlib] Suppress diagnostics for all os.* functions that have the dir_fd parameter (PTH) (#17968)
• [refurb] Mark autofix as safe only for number literals (FURB116) (#17692)

Rule changes

• [flake8-bandit] Skip S608 for expressionless f-strings (#17999)
• [flake8-pytest-style] Don't recommend usefixtures for parametrize values (PT019) (#17650)
• [pyupgrade] Add resource.error as deprecated alias of OSError (UP024) (#17933)

CLI

• Disable jemalloc on Android (#18033)

Documentation

• Update Neovim setup docs (#18108)
• [flake8-simplify] Add fix safety section (SIM103) (#18086)
• [flake8-simplify] Add fix safety section (SIM112) (#18099)
• [pylint] Add fix safety section (PLC0414) (#17802)
• [pylint] Add fix safety section (PLE4703) (#17824)
• [pylint] Add fix safety section (PLW1514) (#17932)
• [pylint] Add fix safety section (PLW3301) (#17878)
• [ruff] Add fix safety section (RUF007) (#17755)
• [ruff] Add fix safety section (RUF033) (#17760)

Contributors

• @AlexWaygood
• @BurntSushi
• @DimitriPapadopoulos
• @InSyncWithFoo
• @LaBatata101
• @Lee-W
• @MichaReiser
• @Rogdham
• @Usul-Dev
• @VascoSch92
• @abhijeetbodas2001
• @bombsimon
• @carljm
• @charliermarsh
• @danparizher
• @dcreager
• @dhruvmanila
• @github-actions
• @ibraheemdev
• @kiran-4444
• @lukeanderson93
• @maxmynter
• @mtshiba
• @naslundx
• @ntBre
• @omahs
• @renovate
• @sharkdp
• @swnb
• @yunchipang
• @zanieb

Install ruff 0.11.10

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.11.10/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.11.10/ruff-installer.ps1 | iex"

Download ruff 0.11.10

File	Platform	Checksum
ruff-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ruff-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ruff-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ruff-i686-pc-windows-msvc.zip	x86 Windows	checksum
ruff-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ruff-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ruff-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ruff-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ruff-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ruff-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum
ruff-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum
ruff-armv7-unknown-linux-gnueabihf.tar.gz	ARMv7 Linux	checksum
ruff-aarch64-unknown-linux-musl.tar.gz	ARM64 MUSL Linux	checksum
ruff-i686-unknown-linux-musl.tar.gz	x86 MUSL Linux	checksum
ruff-x86_64-unknown-linux-musl.tar.gz	x64 MUSL Linux	checksum
ruff-arm-unknown-linux-musleabihf.tar.gz	ARMv6 MUSL Linux (Hardfloat)	checksum
ruff-armv7-unknown-linux-musleabihf.tar.gz	ARMv7 MUSL Linux	checksum