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astral-automations-bot[bot]andBrent Westbrook 5b27c1ccfa Bump version to 0.17.0 (#29259 )

Co-authored-by: astral-automations-bot[bot] <305554984+astral-automations-bot[bot]@users.noreply.github.com>
Co-authored-by: Brent Westbrook <brentrwestbrook@gmail.com>

2026-10-09 13:45:29 -04:00

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Changelog

0.17.0

Released on 2026-10-09.

Breaking changes

Update the default and latest Python versions for 3.15 (#28792)

Ruff now defaults to Python 3.11 instead of 3.10 when no Python version is configured through target-version or requires-python. When checking for syntax errors without a configured Python version, Ruff now defaults to Python 3.15 instead of 3.14.
Update the default rule set (#28786)

Several of the flake8-datetimez rules (DTZ001, DTZ005, DTZ006, DTZ007, DTZ011, DTZ012, and DTZ901) are no longer enabled by default, while undefined-local-with-nested-import-star-usage (F406), which corresponds to a syntax error, is now enabled by default.
Update Rust crate quick-junit to 0.8.0 (#27295)

JUnit output now uses a skipped attribute instead of disabled on <testsuite> elements and includes a skipped attribute on the root <testsuites> element.
[flake8-import-conventions] Add datetime as dt as a conventional alias (ICN001) (#28790)
Support Unicode dummy variable names (#28722)

The default lint.dummy-variable-rgx now recognizes underscore-prefixed Unicode names, such as _次, as dummy variables.
Update to Unicode 17 (#21229, #28784)

Ruff now uses Unicode 17 data for identifier normalization and named character escapes ("\N{...}").
Always show unsafe and display-only fixes in the CLI (#27810)

The default full output format now shows unsafe fixes and suggestions requiring manual review, regardless of the unsafe-fixes setting. Actually applying unsafe fixes still requires explicit opt-in.
Remove the Python dependency from conda-forge builds (conda-forge/ruff-feedstock#361)

The conda-forge build no longer depends on Python, now supports linux-riscv64, win-arm64, and linux-ppc64le platforms, and now includes shell completions. However, no longer depending on Python means that python -m ruff and import ruff will no longer work. Use ruff directly from PATH instead. PyPI installations and those from the standalone installer are unaffected.
Remove support for ruff-lsp (#28750)

Support for ruff-lsp, the legacy Python language server deprecated in Ruff v0.9.5, has been removed. The Ruff VS Code extension now always uses the native language server; ruff.nativeServer is deprecated and ignored. See the migration guide.

Stabilization

The following rules have been stabilized and are no longer in preview:

lazy-import-mismatch (TID254)
lazy-import-immediately-resolved (TID255)
os-path-commonprefix (RUF071)

The following behaviors have been stabilized:

The formatter, unsorted-imports (I001), line-too-long (E501), and doc-line-too-long (W505) now consistently ignore trailing pragma comments when computing line length. This resolved several bugs involving interactions between these rules (#27313) but may also cause existing imports to be reformatted and was thus classified as a breaking change.

Preview features

[flake8-bugbear] Report the method name and a more precise range (B005) (#27050)
[refurb] Mark fix unsafe and move to suspicious (FURB152) (#28405)
[ruff] Allow docstrings in strict mode (RUF067) (#28679)

Bug fixes

[flake8-builtins] Expand checks in class scopes (A001) (#29076)
[flake8-self] Allow private access on object.__new__(cls) instances (SLF001) (#29001)
[flake8-tidy-imports] Skip lazy-import-mismatch in stubs (TID254) (#29095)
[flake8-type-checking] Add the notion of runtime-ambiguous references (#26508)
[flake8-type-checking] Never flag annotations in function scopes (#29183)
[pyflakes] Mark the fix as unsafe when it creates a docstring (F541) (#28258)
[pylint] Preserve trailing comments in useless-return fix (PLR1711) (#29180)
[ruff] Avoid false positive when pytest.raises is used in a with statement (RUF061) (#28186)