astral-sh/ruff 0.15.14

on GitHub

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

• @ocaballeror
• @lerebear
• @samuelcolvin
• @baltasarblanco
• @aconal-com
• @anishgirianish
• @JelleZijlstra
• @AlexWaygood
• @ntBre
• @adityasingh2400
• @charliermarsh
• @Dev-iL
• @neutrinoceros
• @shivamtiwari3
• @Dev-X25874

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

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>