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@github-actions github-actions released this 03 Sep 17:20
Immutable release. Only release title and notes can be modified.
0.16.6
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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>
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