Ruff Files

Release Notes

Released on 2025-09-25.

Preview features

• [flake8-async] Implement blocking-path-method (ASYNC240) (#20264)
• [flake8-bugbear] Implement map-without-explicit-strict (B912) (#20429)
• [flake8-bultins] Detect class-scope builtin shadowing in decorators, default args, and attribute initializers (A003) (#20178)
• [ruff] Implement logging-eager-conversion (RUF065) (#19942)
• Include .pyw files by default when linting and formatting (#20458)

Bug fixes

• Deduplicate input paths (#20105)
• [flake8-comprehensions] Preserve trailing commas for single-element lists (C409) (#19571)
• [flake8-pyi] Avoid syntax error from conflict with PIE790 (PYI021) (#20010)
• [flake8-simplify] Correct fix for positive maxsplit without separator (SIM905) (#20056)
• [pyupgrade] Fix UP008 not to apply when __class__ is a local variable (#20497)
• [ruff] Fix B004 to skip invalid hasattr/getattr calls (#20486)
• [ruff] Replace -nan with nan when using the value to construct a Decimal (FURB164 ) (#20391)

Documentation

• Add 'Finding ways to help' to CONTRIBUTING.md (#20567)
• Update import path to ruff-wasm-web (#20539)
• [flake8-bandit] Clarify the supported hashing functions (S324) (#20534)

Other changes

• [playground] Allow hover quick fixes to appear for overlapping diagnostics (#20527)
• [playground] Fix non‑BMP code point handling in quick fixes and markers (#20526)

Contributors

• @BurntSushi
• @mtshiba
• @second-ed
• @danparizher
• @ShikChen
• @PieterCK
• @GDYendell
• @RazerM
• @TaKO8Ki
• @amyreese
• @ntbre
• @MichaReiser

Install ruff 0.13.2

Install prebuilt binaries via shell script

:::sh
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/ruff/releases/download/0.13.2/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

:::sh
powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/ruff/releases/download/0.13.2/ruff-installer.ps1 | iex"

Download ruff 0.13.2