ruff 0.17.5

on Python PyPI

Release Notes

Released on 2026-11-12.

Preview features

• Redirect renamed rules (#30081)
• [flake8-async] Implement pytest-raises-exception-group (ASYNC401) (#28772)
• [flake8-logging-format] Mark G004 fix as unsafe (#30087)
• [pylint] Implement no-method-argument (PLE0211) (#29748)
• [refurb] Do not offer fix when write is nested in an expression (FURB103) (#29789)
• [ruff] Add renamed-rule (RUF202) (#30079)
• [ruff] Expand redirected-noqa to other suppression comments (RUF101) (#30078)

Bug fixes

• Avoid crashing when Ruff logs to a closed stderr pipe (#30209)
• Fix fixes that add or remove a keyword argument with a parenthesized value (#30189)
• [flake8-import-conventions] Avoid shadowing names when fixing import aliases (ICN001) (#30035)
• [flake8-bugbear] Fix B010 autofix for parenthesized setattr calls (#30168)
• [flake8-pyi] Fix PYI034 autofix for parenthesized self annotations (#30173)
• [pyupgrade] Fix UP031 duplicating closing parentheses around the format string (#30172)

Rule changes

• [flake8-bugbear] Ignore frozen dataclass instantiations (B008) (#29231)

Performance

• Various performance improvements (#30375, #30211, #30368, #30259, #30354, #30115, #30133, #30132, #30358, #30135, #30369, #30351, #30352, #30347, #30379, #30328, #30329, #29446)

Other changes

• Fix FreeBSD source builds with libc 0.2.190 (#30176)

Contributors

• @rajveer3x
• @tjkuson
• @hugehoo
• @hector2394
• @ansh-rohilla
• @mati-caliz
• @yxshee
• @charliermarsh
• @MichaReiser
• @GeorgiaPreda
• @G26karthik
• @ntBre
• @s-cork

Install ruff 0.17.5

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.17.5/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.17.5/ruff-installer.ps1 | iex"

Download ruff 0.17.5

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>