ruff

Name: ruff
Author: ruff

Developer ToolsMIT

ruff release notes.

Latest 0.16.7 · Sep 10, 2026by ruffWritten in RustWebsite astral-sh/ruff RSS

Release activity

Release activity — 17 releases across 17 days since May 21, 2026. Each cell is one day; darker means more releases that day. Nothing is recorded before May 21, 2026. Older weeks are hidden at this screen width.
				Jun				Jul				Aug					Sep
Sunday		No releases on May 24, 2026	No releases on May 31, 2026	No releases on Jun 7, 2026	No releases on Jun 14, 2026	No releases on Jun 21, 2026	No releases on Jun 28, 2026	No releases on Jul 5, 2026	No releases on Jul 12, 2026	No releases on Jul 19, 2026	No releases on Jul 26, 2026	No releases on Aug 2, 2026	No releases on Aug 9, 2026	No releases on Aug 16, 2026	No releases on Aug 23, 2026	No releases on Aug 30, 2026	No releases on Sep 6, 2026
Monday		No releases on May 25, 2026	No releases on Jun 1, 2026	No releases on Jun 8, 2026	No releases on Jun 15, 2026	No releases on Jun 22, 2026	No releases on Jun 29, 2026	No releases on Jul 6, 2026	No releases on Jul 13, 2026	No releases on Jul 20, 2026	No releases on Jul 27, 2026	No releases on Aug 3, 2026	No releases on Aug 10, 2026	No releases on Aug 17, 2026	No releases on Aug 24, 2026	No releases on Aug 31, 2026	No releases on Sep 7, 2026
Tuesday		No releases on May 26, 2026	No releases on Jun 2, 2026	No releases on Jun 9, 2026	No releases on Jun 16, 2026	No releases on Jun 23, 2026	No releases on Jun 30, 2026	No releases on Jul 7, 2026	No releases on Jul 14, 2026	No releases on Jul 21, 2026	No releases on Jul 28, 2026	No releases on Aug 4, 2026	No releases on Aug 11, 2026	No releases on Aug 18, 2026	No releases on Aug 25, 2026	No releases on Sep 1, 2026	No releases on Sep 8, 2026
Wednesday		No releases on May 27, 2026	No releases on Jun 3, 2026	No releases on Jun 10, 2026	No releases on Jun 17, 2026	1 release on Jun 24, 2026	No releases on Jul 1, 2026	No releases on Jul 8, 2026	No releases on Jul 15, 2026	No releases on Jul 22, 2026	No releases on Jul 29, 2026	No releases on Aug 5, 2026	No releases on Aug 12, 2026	No releases on Aug 19, 2026	No releases on Aug 26, 2026	No releases on Sep 2, 2026	No releases on Sep 9, 2026
Thursday	1 release on May 21, 2026	1 release on May 28, 2026	1 release on Jun 4, 2026	1 release on Jun 11, 2026	1 release on Jun 18, 2026	1 release on Jun 25, 2026	No releases on Jul 2, 2026	1 release on Jul 9, 2026	1 release on Jul 16, 2026	1 release on Jul 23, 2026	1 release on Jul 30, 2026	No releases on Aug 6, 2026	1 release on Aug 13, 2026	1 release on Aug 20, 2026	1 release on Aug 27, 2026	1 release on Sep 3, 2026	1 release on Sep 10, 2026
Friday	No releases on May 22, 2026	No releases on May 29, 2026	No releases on Jun 5, 2026	No releases on Jun 12, 2026	No releases on Jun 19, 2026	No releases on Jun 26, 2026	No releases on Jul 3, 2026	No releases on Jul 10, 2026	No releases on Jul 17, 2026	No releases on Jul 24, 2026	No releases on Jul 31, 2026	1 release on Aug 7, 2026	No releases on Aug 14, 2026	No releases on Aug 21, 2026	No releases on Aug 28, 2026	No releases on Sep 4, 2026
Saturday	No releases on May 23, 2026	No releases on May 30, 2026	No releases on Jun 6, 2026	No releases on Jun 13, 2026	No releases on Jun 20, 2026	No releases on Jun 27, 2026	No releases on Jul 4, 2026	No releases on Jul 11, 2026	No releases on Jul 18, 2026	No releases on Jul 25, 2026	No releases on Aug 1, 2026	No releases on Aug 8, 2026	No releases on Aug 15, 2026	No releases on Aug 22, 2026	No releases on Aug 29, 2026	No releases on Sep 5, 2026

17 releases since May 21, 2026

Changelog

From

0.16.7

LatestSep 10, 2026 · about 5 hours ago

Added 2

Add rule for default values on method receivers (RUF077)
Recognize re.prefixmatch (RUF039, RUF055)

Changed 6

Correct D211 and D203 rule conflict diagnostic
Recognize slice and frozendict generics
Stop defining __cached__ for Python 3.15
Stop recommending removed typing.no_type_check_decorator (UP035)
Reuse parser name lookups when interning
Speed up inherited configuration resolution

Fixed 4

Alternate nested quotes inside format spec interpolations
Mark fix unsafe when it creates a docstring (ISC003)
Skip fixes for multi-member imports (TID254)
Gate ImportCycleError on Python 3.15 (PLW0133)

From ruff

Release Notes

Released on 2026-09-10.

Preview features

[ruff] Add rule for default values on method receivers (RUF077) (#26700)
[ruff] Recognize re.prefixmatch (RUF039, RUF055) (#28311)

Bug fixes

Alternate nested quotes inside format spec interpolations (#28259)
[flake8-implicit-str-concat] Mark fix unsafe when it creates a docstring (ISC003) (#27981)
[flake8-tidy-imports] Skip fixes for multi-member imports (TID254) (#26584)
[pylint] Gate ImportCycleError on Python 3.15 (PLW0133) (#28310)

Rule changes

Correct D211 and D203 rule conflict diagnostic (#28444)
Recognize slice and frozendict generics (#28477)
Stop defining __cached__ for Python 3.15 (#28476)
[pyupgrade] Stop recommending removed typing.no_type_check_decorator (UP035) (#28475)

Performance

Reuse parser name lookups when interning (#28399)
Speed up inherited configuration resolution (#28299)

Documentation

Fix line-length path in --config example (#28392)
Remove the "Who’s Using Ruff?" list (#28455)

Other changes

Embed archive checksums in the shell installer (#28281)

Contributors

Install ruff 0.16.7

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.7/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.7/ruff-installer.ps1 | iex"

Download ruff 0.16.7

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.6

Sep 3, 2026 · 7 days ago

Added 2

Add an autofix for PT020 in flake8-pytest-style
Add display-only fix for os.listdir (PTH208) in flake8-use-pathlib

Changed 3

Move pytest-fixture-autouse to the restriction category
Exclude pragma comments from line length calculation (I001) in isort
Allow unary plus in match patterns on Python 3.15

Fixed 7

Validate unary expressions when parsing
Recognize builtins.open in flake8-async and pylint (ASYNC230, PLW1514)
Fix panic on match subjects (B031) in flake8-bugbear
Reject tzinfo=None for datetime bounds (DTZ901) in flake8-datetimez
Avoid duplicate PT017 diagnostics in flake8-pytest-style
Remove lint.external hint for Ruff-specific suppressions (RUF102)
Prevent fix loop between TID254 and TID255 in flake8-tidy-imports

From ruff

Release Notes

Released on 2026-09-03.

Preview features

Move pytest-fixture-autouse to the restriction category (#28219)
[flake8-pytest-style] Add an autofix for PT020 (#27993)
[flake8-tidy-imports] Prevent fix loop between TID254 and TID255 (#28262)
[isort] Exclude pragma comments from line length calculation (I001) (#27313)

Bug fixes

Validate unary expressions when parsing (#28233)
[flake8-async, pylint] Recognize builtins.open (ASYNC230, PLW1514) (#28021)
[flake8-bugbear] Fix panic on match subjects (B031) (#27781)
[flake8-datetimez] Reject tzinfo=None for datetime bounds (DTZ901) (#28022)
[flake8-pytest-style] Avoid duplicate PT017 diagnostics (#27918)
[ruff] Remove lint.external hint for Ruff-specific suppressions (RUF102) (#27923)

Rule changes

[flake8-use-pathlib] Add display-only fix for os.listdir (PTH208) (#28027)

Documentation

Add another example and glob reference for lint.per-file-ignores (#28106)
Add duplicate work guidance (#28229)
[flake8-async] Document thread offloading (ASYNC240) (#28008)
[pyupgrade] Clarify default encoding argument handling (UP012) (#27315)

Other changes

Allow unary plus in match patterns on Python 3.15 (#28231)

Contributors

Install ruff 0.16.6

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.6/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.6/ruff-installer.ps1 | iex"

Download ruff 0.16.6

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.5

Aug 27, 2026 · 14 days ago

Added 2

Allow rules without codes
Introduce category selectors

Changed 1

Update preview default rules and categories

Fixed 4

Detect blocking generic HTTP requests (ASYNC210)
Allow timezone-safe strptime chains (DTZ007)
Respect side effects in lambda defaults (SIM401)
Fix duplicated "of" in ClientOptions doc comment

From ruff

Release Notes

Released on 2026-08-27.

Preview features

Allow rules without codes (#28049)
Introduce category selectors (#27666)
Update preview default rules and categories (#27877)

Bug fixes

[flake8-async] Detect blocking generic HTTP requests (ASYNC210) (#28024)
[flake8-datetimez] Allow timezone-safe strptime chains (DTZ007) (#28023)
[flake8-simplify] Respect side effects in lambda defaults (SIM401) (#28000)

Server

Fix duplicated "of" in ClientOptions doc comment (#27978)

Documentation

Document rule acceptance guidelines (#27910)
Document the new category selectors (#27906)

Contributors

Install ruff 0.16.5

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.5/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.5/ruff-installer.ps1 | iex"

Download ruff 0.16.5

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.4

Aug 20, 2026 · 21 days ago

Added 4

Add autofix for PTH116 in flake8-use-pathlib
Detect duplicate keyword arguments in syntax-errors
Detect parameters declared nonlocal in syntax-errors
Support pull diagnostics for notebook cells in server

Changed 6

Restrict delete-full-slice to lists (FURB131) in refurb
Skip FURB101 and FURB103 when the open argument is a file descriptor in refurb
Align mixed t-string/bytes error message with CPython 3.14 in syntax-errors
Add ctypes.LittleEndianStructure and related types to existing exception (RUF012) in ruff
Offer display-only fixes and mark safe fixes preferred in server
Reduce configuration deserialization code size

Fixed 6

Fix InvalidInstruction on Windows CPUs that do not support POPCNT
Emit semantic syntax errors in string type definitions as F722 in pyflakes
Allow os._exit imports in import-private-name (PLC2701) in pylint
Fix s390x stacker assembly in release builds
Guarantee minimum stack size when parsing a module, standalone expression, and suites
Check packed AST index bounds

From ruff

Release Notes

Released on 2026-08-20.

Preview features

[flake8-use-pathlib] Add autofix for PTH116 (#26460)
[refurb] Restrict delete-full-slice to lists (FURB131) (#27711)
[refurb] Skip FURB101 and FURB103 when the open argument is a file descriptor (#27643)

Bug fixes

Fix InvalidInstruction on Windows CPUs that do not support POPCNT (#27803)
[pyflakes] Emit semantic syntax errors in string type definitions as F722 (#27835)
[pylint] Allow os._exit imports in import-private-name (PLC2701) (#27738)

Rule changes

[syntax-errors] Align mixed t-string/bytes error message with CPython 3.14 (#27766)
[ruff] Add ctypes.LittleEndianStructure and related types to existing exception (RUF012) (#27753)
[syntax-errors] Detect duplicate keyword arguments (#17804)
[syntax-errors] Detect parameters declared nonlocal (#27628)

Server

Offer display-only fixes and mark safe fixes preferred (#27807)
Support pull diagnostics for notebook cells (#27779)

Documentation

Add default indicator to rules table (#27724)
Fix broken link to Python docs (#27757)

Other changes

Fix s390x stacker assembly in release builds (#27776)
Guarantee minimum stack size when parsing a module, standalone expression, and suites (#25464)
Reduce configuration deserialization code size (#27924)
Check packed AST index bounds (#27849)

Contributors

Install ruff 0.16.4

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.4/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.4/ruff-installer.ps1 | iex"

Download ruff 0.16.4

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.3

Aug 13, 2026 · 28 days ago

Added 1

Add rule to replace while 1 with while True (UP048)

Changed 8

Make np.chararray autofix backwards-compatible for NPY201
Enable PGO for Linux x86-64 Ruff releases
Enable PGO for Linux ARM64 Ruff releases
Enable PGO for Windows x86-64 Ruff releases
Enable PGO for macOS ARM64 Ruff releases
Reduce Expr size to 64 bytes
Hyperlink rule codes in ruff check --statistics output
Use mimalloc v3

Fixed 6

Fix false negatives on negative numbers for PLR6104
Check keyword arguments for S602, S603, S607, S609
Allow continue in finally on Python 3.8 for pylint
Fix PLE1307 false positive with bools
Fix false positives and negatives with %b format character for PLE1300 and PLE1307
Improve handling of concatenated strings for PLE1300

From ruff

Release Notes

Released on 2026-08-13.

Preview features

[pylint] Fix false negatives on negative numbers (PLR6104) (#27251)
[pyupgrade] Add rule to replace while 1 with while True (UP048) (#27190)

Bug fixes

[flake8-bandit] Also check keyword arguments (S602, S603, S607, S609) (#27687)
[pylint] Allow continue in finally on Python 3.8 (#27626)
[pylint] Fix PLE1307 false positive with bools (#27651)
[pylint] Fix false positives and negatives with %b format character (PLE1300, PLE1307) (#27560)
[pylint] Improve handling of concatenated strings (PLE1300) (#27659)

Rule changes

[numpy] Make np.chararray autofix backwards-compatible (NPY201) (#27527)

Performance

Enable PGO for Linux x86-64 Ruff releases (#27570)
Enable PGO for Linux ARM64 Ruff releases (#27574)
Enable PGO for Windows x86-64 Ruff releases (#27573)
Enable PGO for macOS ARM64 Ruff releases (#27572)
Reduce Expr size to 64 bytes (#27591)

CLI

Hyperlink rule codes in ruff check --statistics output (#27646)

Documentation

[ruff] Also suggest asyncio.TaskGroup (RUF006) (#27461)

Other changes

Use mimalloc v3 (#27586)

Contributors

Install ruff 0.16.3

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.3/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.3/ruff-installer.ps1 | iex"

Download ruff 0.16.3

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.2

Aug 7, 2026 · about 1 month ago

Changed 1

Fixed 1

Avoid false positives on singledispatch functions in flake8-pyi PYI041 rule

From ruff

Release Notes

Released on 2026-08-06.

Bug fixes

[flake8-pyi] Avoid false positives on singledispatch functions (PYI041) (#27335)

Server

Contributors

Install ruff 0.16.2

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.2/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.2/ruff-installer.ps1 | iex"

Download ruff 0.16.2

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.1

Jul 30, 2026 · about 1 month ago

Added 2

Add an option to opt out of human-readable names
Lint TOML files in the LSP

Changed 6

Make flake8-pytest-style PT018 fixes safe by default and unsafe only when comments are present
Skip pyupgrade fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047)
Mark flake8-pytest-style PT022 fixes as unsafe
Mark refurb fixes that remove unknown separators as unsafe (FURB105)
Reduce syntax error noise by swallowing dedents like indents
Vendor latest annotate-snippets

Fixed 8

Fix false positive with unpacked arguments (RUF065)
Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages
Mark range as immutable in flake8-bugbear B008
NFKC-normalize keyword names in flake8-comprehensions C408 fix
Fix false positive when variable is read in finally clause (RET504)
Skip section detection inside RST directive bodies in pydocstyle (D214, D405, D413)
Parenthesize yield arguments in the FURB192 fix
Fix indexing of excluded nested Ruff workspaces in LSP server

From ruff

Release Notes

Released on 2026-07-30.

Preview features

Add an option to opt out of human-readable names (#27160)
[flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
[pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
[ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
[flake8-bugbear] Mark range as immutable (B008) (#27247)
[flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
[flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
[pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
[refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

[flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
[refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

Fix indexing of excluded nested Ruff workspaces (#27303)
Lint TOML files in the LSP (#26862)

Documentation

Cover pycon Markdown formatting (#27153)
[flake8-bandit] Document TYPE_CHECKING exception (S101) (#27004)
[flake8-import-conventions] Document that extend-aliases can override default aliases (#27191)
[pylint] Add missing fix safety gotchas for non-augmented-assignment (PLR6104) (#27250)

Other changes

Reduce syntax error noise by swallowing dedents like indents (#27170)
Vendor latest annotate-snippets (#27033)

Contributors

Install ruff 0.16.1

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.1/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.1/ruff-installer.ps1 | iex"

Download ruff 0.16.1

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.16.0

Jul 23, 2026 · about 2 months ago

Added 3

Ruff can now format Python code blocks in Markdown files and will do this by default
Ruff now supports `ruff: ignore` comments at the ends of lines or on the line preceding a diagnostic to suppress diagnostics
The `format --check` command now supports the same output formats as the linter, including `github` and `gitlab` outputs for rendering annotations in CI

Changed 21

Ruff now enables a much larger set of rules by default (413, up from 59)
Fixes are now shown in `check` and `format --check` output
The `filename`, `location`, `end_location`, `fix.edits[].location`, and `fix.edits[].end_location` fields in JSON output format may now be `null` rather than defaulting to empty string and row 1, column 1
Stabilized `airflow3-incompatible-function-signature` (AIR303) rule
Stabilized `missing-copyright-notice` (CPY001) rule
Stabilized `unnecessary-from-float` (FURB164) rule
Stabilized `sorted-min-max` (FURB192) rule
Stabilized `implicit-string-concatenation-in-collection-literal` (ISC004) rule
Stabilized `log-exception-outside-except-handler` (LOG004) rule
Stabilized `invalid-bool-return-type` (PLE0304) rule
Stabilized `too-many-positional-arguments` (PLR0917) rule
Stabilized `stop-iteration-return` (PLR1708) rule
Stabilized `none-not-at-end-of-union` (RUF036) rule
Stabilized `access-annotations-from-class-dict` (RUF063) rule
Stabilized `duplicate-entry-in-dunder-all` (RUF068) rule
The `blind-except` (BLE001) rule is now suppressed when the exception is logged via `logging` methods other than `critical`, `error`, and `exception`
The `future-required-type-annotation` (FA102) rule now checks for additional PEP 585-compatible APIs such as those from `collections.abc`
The `suspicious-url-open-usage` (S310) rule now resolves local string literal bindings to avoid more false positives
The `snmp-insecure-version` (S508) and `snmp-weak-cryptography` (S509) rules now support the recommended API from newer versions of PySNMP
The `typing-text-str-alias` (UP019) rule now recognizes `typing_extensions.Text` in addition to `typing.Text`
Insert a space after the colon in Ruff suppression comments

Fixed 1

Fix missing check on unrecognized early bound (RUF016)

Removed 1

Removed 18 opinionated pycodestyle and pyflakes rules from the default set: E401, E402, E701, E702, E703, E711, E712, E713, E714, E721, E731, E741, E742, E743, F403, F405, F406, and F722

From ruff

Release Notes

Released on 2026-07-23.

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

Breaking changes

Ruff now enables a much larger set of rules by default (413, up from 59). See the blog post for more details and the new Default Rules page for a full listing of the enabled rules. Note that this is primarily an expansion, but 18 of the more opinionated pycodestyle (E) and pyflakes (F) rules have been removed from the default set: E401, E402, E701, E702, E703, E711, E712, E713, E714, E721, E731, E741, E742, E743, F403, F405, F406, and F722.
Ruff can now format Python code blocks in Markdown files and will do this by default. See the documentation for more details.
Ruff now supports ruff: ignore comments at the ends of lines, like noqa comments, or on the line preceding a diagnostic. For example, these both suppress an unused-import (F401) diagnostic:
```
import math  # ruff: ignore[F401]

# ruff: ignore[F401]
import os
```

Fixes are now shown in check and format --check output:

❯ ruff format --check .
unformatted: File would be reformatted
 --> try.md:1:1
  |
1 | ```python
  - import   math
2 + import math
3 | ```
  |

1 file would be reformatted

This example also shows off the Markdown formatting.

format --check now supports the same output formats as the linter, including the github and gitlab outputs for rendering annotations in CI:
```
❯ ruff format --check --output-format github .
::error title=ruff (unformatted),file=try.md,line=2,col=8,endLine=2,endColumn=10::try.md:2:8: unformatted: File would be reformatted
```
See the CLI help or documentation for the full list of supported formats.
The filename, location, end_location, fix.edits[].location, and fix.edits[].end_location fields in the JSON output format may now be null rather than defaulting to the empty string and row 1, column 1, respectively.

Stabilization

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

airflow3-incompatible-function-signature (AIR303)
missing-copyright-notice (CPY001)
unnecessary-from-float (FURB164)
sorted-min-max (FURB192)
implicit-string-concatenation-in-collection-literal (ISC004)
log-exception-outside-except-handler (LOG004)
invalid-bool-return-type (PLE0304)
too-many-positional-arguments (PLR0917)
stop-iteration-return (PLR1708)
none-not-at-end-of-union (RUF036)
access-annotations-from-class-dict (RUF063)
duplicate-entry-in-dunder-all (RUF068)

The following behaviors have been stabilized:

blind-except (BLE001) is now suppressed when the exception is logged via logging methods other than critical, error and exception.
future-required-type-annotation (FA102) now checks for additional PEP 585-compatible APIs, such as those from collections.abc.
f-string-in-get-text-func-call (INT001), format-in-get-text-func-call (INT002), and printf-in-get-text-func-call (INT003) now check for additional common ways of using the gettext module, such as assigning it to builtins._.
suspicious-url-open-usage (S310) now resolves local string literal bindings to avoid more false positives.
snmp-insecure-version (S508) and snmp-weak-cryptography (S509) now support the recommended API from newer versions of PySNMP.
typing-text-str-alias (UP019) now recognizes typing_extensions.Text in addition to typing.Text.

Preview features

[pyupgrade] Fix false positive with TypeVar default before Python 3.13 (UP040) (#26888)

Bug fixes

[ruff] Fix missing check on unrecognized early bound (RUF016) (#26986)

Rule changes

Insert a space after the colon in Ruff suppression comments (#27123)

Performance

[pyupgrade] Speed up unnecessary-future-import (UP010) (#27047)

Documentation

[ruff] Add missing period in "Why is this bad?" section (RUF200) (#26930)
[flake8-simplify] Clarify os.environ behavior on Windows (SIM112) (#26972)
[pydocstyle] Document fix safety (D400) (#26971)

Contributors

Install ruff 0.16.0

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.0/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.0/ruff-installer.ps1 | iex"

Download ruff 0.16.0

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.15.22

Jul 16, 2026 · about 2 months ago

Added 5

Add an autofix for E402 in pycodestyle
Allow subclassing builtins in stub files for FURB189 in refurb
Add rule to replace noqa comments with ruff:ignore (RUF105)
Add rule to use human-readable names in ruff:ignore comments (RUF106)
Add rule to use human-readable names in configuration selectors (RUF201)

Changed 5

Ignore mutable type updates in redefined-loop-name (PLW2901) in pylint
Avoid redundant lexer token bookkeeping
Avoid redundant pending-indentation writes
Avoid unnecessary identifier lookahead
Reuse parser scratch buffers

Fixed 1

Fix false positive in __all__ for PYI053 in flake8-pyi

From ruff

Release Notes

Released on 2026-07-16.

Preview features

[pycodestyle] Add an autofix for E402 (#22212)
[refurb] Allow subclassing builtins in stub files (FURB189) (#26812)
[ruff] Add rule to replace noqa comments with ruff:ignore (RUF105) (#26423)
[ruff] Add rule to use human-readable names in ruff:ignore comments (RUF106) (#26682)
[ruff] Add rule to use human-readable names in configuration selectors (RUF201) (#26772)

Bug fixes

[flake8-pyi] Fix false positive in __all__ (PYI053) (#26872)

Rule changes

[pylint] Ignore mutable type updates in redefined-loop-name (PLW2901) (#25733)

Performance

Avoid redundant lexer token bookkeeping (#26765)
Avoid redundant pending-indentation writes (#26774)
Avoid unnecessary identifier lookahead (#26525)
Reuse parser scratch buffers (#26798)

Documentation

Document argfile support (#26803)
[flake8-datetimez] Clarify naming guidance for datetime.today (DTZ002) (#26658)
[pycodestyle] Document E731 fix safety (#26847)
[ruff] Clarify intentional async contexts for unused-async (RUF029) (#26641)

Contributors

Install ruff 0.15.22

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.22/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.22/ruff-installer.ps1 | iex"

Download ruff 0.15.22

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.15.21

Jul 9, 2026 · 2 months ago

Added 2

Add `--add-ignore` for adding `ruff:ignore` comments
Lint and fix use of deprecated `abc` decorators (`UP051`)

Changed 6

Drop `C409` tuple comprehension preview behavior
Avoid whitespace normalization when formatting comments
Mark `EXE004` fix as unsafe
Mark `PYI061` fixes as unsafe in Python files
Skip `overload-with-docstring` in stub files (`D418`)
Add `--extend-exclude` to `ruff format`

Fixed 3

Refine non-empty f-string detection
Detect syntax errors in individual notebook cells
Fix `ISC003` autofix incorrectly stripping `+` from comments

From ruff

Release Notes

Released on 2026-07-09.

Preview features

Add --add-ignore for adding ruff:ignore comments (#26346)
[flake8-comprehensions] Drop C409 tuple comprehension preview behavior (#25707)
Avoid whitespace normalization when formatting comments (#26455)
[pyupgrade] Lint and fix use of deprecated abc decorators (UP051) (#26417)

Bug fixes

Refine non-empty f-string detection (#26526)
Detect syntax errors in individual notebook cells (#26419)
[flake8-implicit-str-concat] Fix ISC003 autofix incorrectly stripping + from comments (#26554)

Rule changes

[flake8-executable] Mark EXE004 fix as unsafe (#26033)
[flake8-pyi] Mark PYI061 fixes as unsafe in Python files (#26533)
[pydocstyle] Skip overload-with-docstring in stub files (D418) (#26318)

Performance

Avoid per-token source index visitor calls (#26506)
Cache parenthesized expression boundaries in the formatter (#26344)
Improve performance of rendering edits in preview mode (#26565)
Inline fits_element in formatter (#26429)
Inline formatter printing hot paths (#26504)
Lazily create builtin bindings (#26510)
Skip empty trivia scans in the source indexer (#26507)
Use ICF for macOS release builds (#25780)

Formatter

Add --extend-exclude to ruff format (#26372)

Documentation

Add "How does Ruff's import sorting compare to isort?" link to README (#26530)
Fix Mozilla Firefox repository link in README (#26537)
[flake8-bandit] Fix misleading docstring for mako-templates (S702) (#26432)
[ruff] Fix non-triggering example for if-key-in-dict-del (RUF051) (#26433)

Contributors

Install ruff 0.15.21

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.21/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.21/ruff-installer.ps1 | iex"

Download ruff 0.15.21

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

View originalPermalink

0.15.20

Jun 25, 2026 · 3 months ago

Added 1

Allow human-readable names in rule selectors

Changed 2

Emit a warning instead of an error for unknown rule selectors
Match noqa shebang handling in ruff:ignore comments

Removed 1

Remove pytest-fixture-autouse (RUF076)

From ruff

Release Notes

Released on 2026-06-25.

Preview features

Allow human-readable names in rule selectors (#25887)
Emit a warning instead of an error for unknown rule selectors (#26113)
Match noqa shebang handling in ruff:ignore comments (#26286)
[ruff] Remove pytest-fixture-autouse (RUF076) (#26240, #26371)

Documentation

Add versioning sections to custom crate READMEs (#26317)
Update ruff_python_parser README for crates.io (#26315)
[perflint] Clarify that PERF402 applies to any iterable (#26242)

Contributors

Install ruff 0.15.20

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.20/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.20/ruff-installer.ps1 | iex"

Download ruff 0.15.20

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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0.15.19

Jun 24, 2026 · 3 months ago

Added 1

Support human-readable names when hovering suppression comments and in code actions

Changed 8

Update fix suggestions for `__floor__`, `__trunc__`, `__length_hint__`, and `__matmul__` variants (PLC2801)
Avoid allocating when parsing single string literals
Avoid reallocating singleton call arguments
Lazily create source files for lint diagnostics
Optimize formatter text width and indentation
Reserve capacity for builtin bindings
Skip repeated-key checks for singleton dictionaries
Use ArrayVec for qualified name segments

Fixed 2

Fall back to default settings when editor-only settings are invalid
Fix panic when inserting text at a notebook cell boundary

From ruff

Release Notes

Released on 2026-06-23.

Preview features

Support human-readable names when hovering suppression comments and in code actions (#26114)

Bug fixes

Fall back to default settings when editor-only settings are invalid (#26244)
Fix panic when inserting text at a notebook cell boundary (#26111)

Rule changes

[pylint] Update fix suggestions for __floor__, __trunc__, __length_hint__, and __matmul__ variants (PLC2801) (#26239)

Performance

Avoid allocating when parsing single string literals (#26200)
Avoid reallocating singleton call arguments (#26223)
Lazily create source files for lint diagnostics (#26226)
Optimize formatter text width and indentation (#26236)
Reserve capacity for builtin bindings (#26229)
Skip repeated-key checks for singleton dictionaries (#26228)
Use ArrayVec for qualified name segments (#26224)

Documentation

[flake8-pyi] Note that PYI051 is an opinionated stylistic rule (#26179)
[pyupgrade] Clarify UP029 as a Python 2 compatibility rule (#26243)

Other changes

Publish Ruff crates to crates.io (#26271)

Contributors

Install ruff 0.15.19

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.19/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.19/ruff-installer.ps1 | iex"

Download ruff 0.15.19

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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0.15.18

Jun 18, 2026 · 3 months ago

Added 4

Handle nested `ruff:ignore` comments
Prevent property docstrings starting with verbs in pydocstyle (D421)
Extend PYI033 to Python files in flake8-pyi
Make diagnostic links clickable in playground

Changed 5

Stop displaying severity in output
Use human-readable names in CLI output
Use human-readable names in LSP and playground diagnostics
Rename PYI033 to legacy-type-comment in flake8-pyi
Render subdiagnostics and secondary annotations as related information in LSP server

Fixed 11

Detect equivalent numeric mapping keys
Detect mapping keys equivalent to booleans
Detect repeated signed and complex dictionary keys
Reject `__debug__` lambda parameters in parser
Reject `_` as a match-pattern target in parser
Reject multiple starred names in sequence patterns in parser
Reject parenthesized star imports in parser
Reject starred comprehension targets in parser
Reject unparenthesized generator expressions in class bases in parser
Reject `yield` expressions after commas in parser
Validate function type parameter default order in parser

From ruff

Release Notes

Released on 2026-06-18.

Preview features

Handle nested ruff:ignore comments (#25791)
Stop displaying severity in output (#26050)
Use human-readable names in CLI output (#25937)
Use human-readable names in LSP and playground diagnostics (#26058)
[pydocstyle] Prevent property docstrings starting with verbs (D421) (#23775)
[flake8-pyi] Extend PYI033 to Python files (#26129)

Bug fixes

Detect equivalent numeric mapping keys (#26009)
Detect mapping keys equivalent to booleans (#25982)
Detect repeated signed and complex dictionary keys (#26007)

Rule changes

[flake8-pyi] Rename PYI033 to legacy-type-comment (#26131)

Performance

Use ThinVec for call keywords (#25999)
Inline parser recovery context checks (#26038)
Match parser keywords as bytes (#26037)
Move value parsing out of lexing (#25360)

Server

Render subdiagnostics and secondary annotations as related information (#26011)

Documentation

Update fix availability for always-fixable rules (#26091)
[flake8-tidy-imports] Add fix safety section (TID252) (#17491)

Parser

Reject __debug__ lambda parameters (#26022)
Reject _ as a match-pattern target (#25977)
Reject multiple starred names in sequence patterns (#25976)
Reject parenthesized star imports (#26021)
Reject starred comprehension targets (#26023)
Reject unparenthesized generator expressions in class bases (#25978)
Reject yield expressions after commas (#26024)
Validate function type parameter default order (#25981)

Playground

Make diagnostic links clickable (#26104)
Use diagnostic tags (#26105)

Contributors

Install ruff 0.15.18

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.18/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.18/ruff-installer.ps1 | iex"

Download ruff 0.15.18

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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0.15.17

Jun 11, 2026 · 3 months ago

Added 7

Allow human-readable names in suppression comments
Prioritize human-readable names in CLI output
Add `trio.as_safe_channel` to safe decorators for `flake8-async` (ASYNC119)
Check `pytest_asyncio` fixtures in `flake8-pytest-style`
Ban `pytest` autouse fixtures with rule RUF076
Add `from __future__ import annotations` automatically in `pyupgrade` (UP007, UP045)
Allow rule names in `ruff rule` command

Changed 4

Respect diagnostic start and parent ranges and trailing comments in `ruff:ignore` suppressions
Clarify diagnostic message for single parameters in `flake8-pytest-style` (PT007)
Exempt Python version comparisons in `pylint` (PLR2004)
Reserve AST `Vec`s with correct capacity for common cases

Fixed 4

Fix handling of `ignore` comments within a `disable`/`enable` pair
Fix diagnostic when `ruff:enable` or `ruff:disable` appears where `ruff:ignore` is expected
Preserve leading empty literals to avoid syntax errors in `pyupgrade` (UP032)
Preserve whitespace for Quarto cell option comments in formatter

Removed 1

Drop autofix for `np.in1d` in `numpy` (NPY201)

From ruff

Release Notes

Released on 2026-06-11.

Preview features

Allow human-readable names in suppression comments (#25614)
Fix handling of ignore comments within a disable/enable pair (#25845)
Prioritize human-readable names in CLI output (#25869)
Respect diagnostic start and parent ranges and trailing comments in ruff:ignore suppressions (#25673)
[flake8-async] Add trio.as_safe_channel to safe decorators (ASYNC119) (#25775)
[flake8-pytest-style] Also check pytest_asyncio fixtures (#25375)
[ruff] Ban pytest autouse fixtures (RUF076) (#25477)
[pyupgrade] Add from __future__ import annotations automatically (UP007, UP045) (#23259)

Bug fixes

Fix diagnostic when ruff:enable or ruff:disable appears where ruff:ignore is expected (#25700)
[pyupgrade] Preserve leading empty literals to avoid syntax errors (UP032) (#25491)

Rule changes

[flake8-pytest-style] Clarify diagnostic message for single parameters (PT007) (#25592)
[numpy] Drop autofix for np.in1d (NPY201) (#25612)
[pylint] Exempt Python version comparisons (PLR2004) (#25743)

Performance

Reserve AST Vecs with correct capacity for common cases (#25451)

Formatter

Preserve whitespace for Quarto cell option comments (#25641)

CLI

Allow rule names in ruff rule (#25640)

Other changes

Fix playground diagnostics scrollbars (#25642)

Contributors

Install ruff 0.15.17

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.17/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.17/ruff-installer.ps1 | iex"

Download ruff 0.15.17

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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0.15.16

Jun 4, 2026 · 3 months ago

Added 1

Implement `yield-in-context-manager-in-async-generator` (ASYNC119) for flake8-async

Changed 4

Narrow diagnostic range and exclude cases without exception handlers for PLW0717 in pylint
Treat `yield` before `break` from a terminal loop as terminal (RUF075) in ruff
Avoid fixes for ambiguous `argnames` and `argvalues` combinations (PT006) in flake8-pytest-style
Drop excess capacity from statement suites during parsing

Fixed 5

Avoid flagging `ruff:ignore` comments as code (ERA001) in eradicate
Fix ERA001/RUF100 conflict when `noqa` is on commented-out code
Avoid removing the `format` call when it would change behavior (F523) in pyflakes
Avoid syntax errors in invalid character replacements in f-strings before Python 3.12 (PLE2510, PLE2512, PLE2513, PLE2514, PLE2515) in pylint
Avoid converting `format` calls with more kinds of side effects (UP032) in pyupgrade

From ruff

Release Notes

Released on 2026-06-04.

Preview features

[flake8-async] Implement yield-in-context-manager-in-async-generator (ASYNC119) (#24644)
[pylint] Narrow diagnostic range and exclude cases without exception handlers (PLW0717) (#25440)
[ruff] Treat yield before break from a terminal loop as terminal (RUF075) (#25447)

Bug fixes

[eradicate] Avoid flagging ruff:ignore comments as code (ERA001) (#25537)
[eradicate] Fix ERA001/RUF100 conflict when noqa is on commented-out code (#25414)
[pyflakes] Avoid removing the format call when it would change behavior (F523) (#25320)
[pylint] Avoid syntax errors in invalid character replacements in f-strings before Python 3.12 (PLE2510, PLE2512, PLE2513, PLE2514, PLE2515) (#25544)
[pyupgrade] Avoid converting format calls with more kinds of side effects (UP032) (#25484)

Rule changes

[flake8-pytest-style] Avoid fixes for ambiguous argnames and argvalues combinations (PT006) (#24776)

Performance

Drop excess capacity from statement suites during parsing (#25368)

Documentation

[pydocstyle] Improve discoverability of rules enabled for each convention (#24973)
[ruff] Restore example code for Python versions before 3.15 (RUF017) (#25439)
Fix typo bin/active → bin/activate in tutorial (#25473)

Other changes

Shrink additional parser AST collections (#25465)

Contributors

Install ruff 0.15.16

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.16/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.16/ruff-installer.ps1 | iex"

Download ruff 0.15.16

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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0.15.15

May 28, 2026 · 4 months ago

Added 1

Report duplicate imports in typing.TYPE_CHECKING block (F811)

Changed 4

Avoid redundant TokenValue drops in the lexer
Reduce memory usage by dropping token-excess capacity and improve performance by approximating the initial tokens Vec size
Use ThinVec in AST to shrink Stmt
Expand semantic syntax errors for invalid walruses

Fixed 4

Fix Markdown closing fence handling
Treat function-scope bare annotations as locals per PEP 526 (F821)
Fix formatting of lambdas nested within f-strings
Return code action for codeAction/resolve requests that contain no or no valid URL

From ruff

Release Notes

Released on 2026-05-28.

Preview features

Fix Markdown closing fence handling (#25310)
[pyflakes] Report duplicate imports in typing.TYPE_CHECKING block (F811) (#22560)

Bug fixes

[pyflakes] Treat function-scope bare annotations as locals per PEP 526 (F821) (#21540)

Performance

Avoid redundant TokenValue drops in the lexer (#25300)
Reduce memory usage by dropping token-excess capacity and improve performance by approximating the initial tokens Vec size (#25354)
Use ThinVec in AST to shrink Stmt (#25361)

Documentation

Fix line-length example for --config option (#25389)
[flake8-comprehensions] Document RecursionError edge case in __len__ (C416) (#25286)
[mccabe] Improve example (C901) (#25287)
[pyupgrade] Clarify fix safety docs (UP007, UP045) (#25288)
[refurb] Document FURB192 exception change for empty sequences (#25317)
[ruff] Document false negative for user-defined types (RUF013) (#25289)

Formatter

Fix formatting of lambdas nested within f-strings (#25398)

Server

Return code action for codeAction/resolve requests that contain no or no valid URL (#25365)

Other changes

Expand semantic syntax errors for invalid walruses (#25415)

Contributors

Install ruff 0.15.15

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.15/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.15/ruff-installer.ps1 | iex"

Download ruff 0.15.15

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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0.15.14

May 21, 2026 · 4 months ago

Added 4

Implement airflow-task-implicit-multiple-outputs (AIR202) rule
Implement too-many-try-statements (W0717) rule for pylint
Add incorrect-decorator-order (RUF074) rule
Add fallible-context-manager (RUF075) rule

Changed 7

Mark PTH101 fix as unsafe when first argument is a class attribute annotated as int
Skip C417 for lambdas with positional-only parameters
Preserve f-string source verbatim in SIM101 fix
Treat generic frozenset annotations as immutable
Add full PEP 798 support
Add a parser recursion limit
Avoid unnecessary parser lookahead for operators

Fixed 3

Fix lambda formatting in interpolated string expressions
Avoid strict behavior in flake8-type-checking when future-annotations are enabled (TC001, TC002, TC003)
Avoid false positives in else clause for pylint (PLR1733)

From ruff

Release Notes

Released on 2026-05-21.

Preview features

[airflow] Implement airflow-task-implicit-multiple-outputs (AIR202) (#25152)
[flake8-use-pathlib] Mark PTH101 fix as unsafe when first argument is a class attribute annotated as int (#25086)
[pylint] Implement too-many-try-statements (W0717) (#23970)
[ruff] Add incorrect-decorator-order (RUF074) (#23461)
[ruff] Add fallible-context-manager (RUF075) (#22844)

Bug fixes

Fix lambda formatting in interpolated string expressions (#25144)
Treat generic frozenset annotations as immutable (#25251)
[flake8-type-checking] Avoid strict behavior when future-annotations are enabled (TC001, TC002, TC003) (#25035)
[pylint] Avoid false positives in else clause (PLR1733) (#25177)

Rule changes

[flake8-comprehensions] Skip C417 for lambdas with positional-only parameters (#25272)
[flake8-simplify] Preserve f-string source verbatim in SIM101 fix (#25061)

Performance

Avoid unnecessary parser lookahead for operators (#25290)

Documentation

Update code example setting Neovim LSP log level (#25284)

Other changes

Add full PEP 798 support (#25104)
Add a parser recursion limit (#24810)
Update various ruff_python_stdlib APIs (#25273)

Contributors

Install ruff 0.15.14

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.15.14/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.15.14/ruff-installer.ps1 | iex"

Download ruff 0.15.14

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-riscv64gc-unknown-linux-gnu.tar.gz	RISCV 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

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ruff

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>

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Discussion

If you publish ruff, you can claim this product by proving you administer its repository.