ruff 0.16.1

on Python PyPI

Release Notes

Released on 2026-07-30.

Preview features

• Add an option to opt out of human-readable names (#27160)
• [flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
• [pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
• [ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

• Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
• [flake8-bugbear] Mark range as immutable (B008) (#27247)
• [flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
• [flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
• [pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
• [refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

• [flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
• [refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

• Fix indexing of excluded nested Ruff workspaces (#27303)
• Lint TOML files in the LSP (#26862)

Documentation

• Cover pycon Markdown formatting (#27153)
• [flake8-bandit] Document TYPE_CHECKING exception (S101) (#27004)
• [flake8-import-conventions] Document that extend-aliases can override default aliases (#27191)
• [pylint] Add missing fix safety gotchas for non-augmented-assignment (PLR6104) (#27250)

Other changes

• Reduce syntax error noise by swallowing dedents like indents (#27170)
• Vendor latest annotate-snippets (#27033)

Contributors

• @bxff
• @anishgirianish
• @Avasam
• @epage
• @LHMQ878
• @MichaReiser
• @ntBre
• @HarshalPatel1972
• @mjpieters
• @joshuavetos
• @jesco-absolute
• @vidigoat
• @baltasarblanco
• @ribru17
• @oh-summy
• @Jayashanker-Padishala

Install ruff 0.16.1

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.1/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.1/ruff-installer.ps1 | iex"

Download ruff 0.16.1

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>