astral-sh/ruff 0.15.22

on GitHub

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

• @dwego
• @MichaReiser
• @Joosboy
• @KaufmanDmitriy
• @PeterJCLaw
• @ntBre
• @charliermarsh

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

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>