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# Changelog 0.13.x
## 0.13.0
Check out the [blog post](https://astral.sh/blog/ruff-v0.13.0) for a migration
guide and overview of the changes!
### Breaking changes
- **Several rules can now add `from __future__ import annotations` automatically**
`TC001`, `TC002`, `TC003`, `RUF013`, and `UP037` now add `from __future__ import annotations` as part of their fixes when the
`lint.future-annotations` setting is enabled. This allows the rules to move
more imports into `TYPE_CHECKING` blocks (`TC001`, `TC002`, and `TC003`),
use PEP 604 union syntax on Python versions before 3.10 (`RUF013`), and
unquote more annotations (`UP037`).
- **Full module paths are now used to verify first-party modules**
Ruff now checks that the full path to a module exists on disk before
categorizing it as a first-party import. This change makes first-party
import detection more accurate, helping to avoid false positives on local
directories with the same name as a third-party dependency, for example. See
the [FAQ
section](https://docs.astral.sh/ruff/faq/#how-does-ruff-determine-which-of-my-imports-are-first-party-third-party-etc) on import categorization for more details.
- **Deprecated rules must now be selected by exact rule code**
Ruff will no longer activate deprecated rules selected by their group name
or prefix. As noted below, the two remaining deprecated rules were also
removed in this release, so this won't affect any current rules, but it will
still affect any deprecations in the future.
- **The deprecated macOS configuration directory fallback has been removed**
Ruff will no longer look for a user-level configuration file at
`~/Library/Application Support/ruff/ruff.toml` on macOS. This feature was
deprecated in v0.5 in favor of using the [XDG
specification](https://specifications.freedesktop.org/basedir-spec/latest/)
(usually resolving to `~/.config/ruff/ruff.toml`), like on Linux. The
fallback and accompanying deprecation warning have now been removed.
### Removed Rules
The following rules have been removed:
- [`pandas-df-variable-name`](https://docs.astral.sh/ruff/rules/pandas-df-variable-name) (`PD901`)
- [`non-pep604-isinstance`](https://docs.astral.sh/ruff/rules/non-pep604-isinstance) (`UP038`)
### Stabilization
The following rules have been stabilized and are no longer in preview:
- [`airflow-dag-no-schedule-argument`](https://docs.astral.sh/ruff/rules/airflow-dag-no-schedule-argument)
(`AIR002`)
- [`airflow3-removal`](https://docs.astral.sh/ruff/rules/airflow3-removal) (`AIR301`)
- [`airflow3-moved-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-moved-to-provider)
(`AIR302`)
- [`airflow3-suggested-update`](https://docs.astral.sh/ruff/rules/airflow3-suggested-update)
(`AIR311`)
- [`airflow3-suggested-to-move-to-provider`](https://docs.astral.sh/ruff/rules/airflow3-suggested-to-move-to-provider)
(`AIR312`)
- [`long-sleep-not-forever`](https://docs.astral.sh/ruff/rules/long-sleep-not-forever) (`ASYNC116`)
- [`f-string-number-format`](https://docs.astral.sh/ruff/rules/f-string-number-format) (`FURB116`)
- [`os-symlink`](https://docs.astral.sh/ruff/rules/os-symlink) (`PTH211`)
- [`generic-not-last-base-class`](https://docs.astral.sh/ruff/rules/generic-not-last-base-class)
(`PYI059`)
- [`redundant-none-literal`](https://docs.astral.sh/ruff/rules/redundant-none-literal) (`PYI061`)
- [`pytest-raises-ambiguous-pattern`](https://docs.astral.sh/ruff/rules/pytest-raises-ambiguous-pattern)
(`RUF043`)
- [`unused-unpacked-variable`](https://docs.astral.sh/ruff/rules/unused-unpacked-variable)
(`RUF059`)
- [`useless-class-metaclass-type`](https://docs.astral.sh/ruff/rules/useless-class-metaclass-type)
(`UP050`)
The following behaviors have been stabilized:
- [`assert-raises-exception`](https://docs.astral.sh/ruff/rules/assert-raises-exception) (`B017`)
now checks for direct calls to `unittest.TestCase.assert_raises` and `pytest.raises` instead of
only the context manager forms.
- [`missing-trailing-comma`](https://docs.astral.sh/ruff/rules/missing-trailing-comma) (`COM812`)
and [`prohibited-trailing-comma`](https://docs.astral.sh/ruff/rules/prohibited-trailing-comma)
(`COM819`) now check for trailing commas in PEP 695 type parameter lists.
- [`raw-string-in-exception`](https://docs.astral.sh/ruff/rules/raw-string-in-exception) (`EM101`)
now also checks for byte strings in exception messages.
- [`invalid-mock-access`](https://docs.astral.sh/ruff/rules/invalid-mock-access) (`PGH005`) now
checks for `AsyncMock` methods like `not_awaited` in addition to the synchronous variants.
- [`useless-import-alias`](https://docs.astral.sh/ruff/rules/useless-import-alias) (`PLC0414`) no
longer applies to `__init__.py` files, where it conflicted with one of the suggested fixes for
[`unused-import`](https://docs.astral.sh/ruff/rules/unused-import) (`F401`).
- [`bidirectional-unicode`](https://docs.astral.sh/ruff/rules/bidirectional-unicode) (`PLE2502`) now
also checks for U+061C (Arabic Letter Mark).
- The fix for
[`multiple-with-statements`](https://docs.astral.sh/ruff/rules/multiple-with-statements)
(`SIM117`) is now marked as always safe.
### Preview features
- \[`pyupgrade`\] Enable `UP043` in stub files ([#20027](https://github.com/astral-sh/ruff/pull/20027))
### Bug fixes
- \[`pyupgrade`\] Apply `UP008` only when the `__class__` cell exists ([#19424](https://github.com/astral-sh/ruff/pull/19424))
- \[`ruff`\] Fix empty f-string detection in `in-empty-collection` (`RUF060`) ([#20249](https://github.com/astral-sh/ruff/pull/20249))
### Server
- Add support for using uv as an alternative formatter backend ([#19665](https://github.com/astral-sh/ruff/pull/19665))
### Documentation
- \[`pep8-naming`\] Fix formatting of `__all__` (`N816`) ([#20301](https://github.com/astral-sh/ruff/pull/20301))
## 0.13.1
Released on 2025-09-18.
### Preview features
- \[`flake8-simplify`\] Detect unnecessary `None` default for additional key expression types (`SIM910`) ([#20343](https://github.com/astral-sh/ruff/pull/20343))
- \[`flake8-use-pathlib`\] Add fix for `PTH123` ([#20169](https://github.com/astral-sh/ruff/pull/20169))
- \[`flake8-use-pathlib`\] Fix `PTH101`, `PTH104`, `PTH105`, `PTH121` fixes ([#20143](https://github.com/astral-sh/ruff/pull/20143))
- \[`flake8-use-pathlib`\] Make `PTH111` fix unsafe because it can change behavior ([#20215](https://github.com/astral-sh/ruff/pull/20215))
- \[`pycodestyle`\] Fix `E301` to only trigger for functions immediately within a class ([#19768](https://github.com/astral-sh/ruff/pull/19768))
- \[`refurb`\] Mark `single-item-membership-test` fix as always unsafe (`FURB171`) ([#20279](https://github.com/astral-sh/ruff/pull/20279))
### Bug fixes
- Handle t-strings for token-based rules and suppression comments ([#20357](https://github.com/astral-sh/ruff/pull/20357))
- \[`flake8-bandit`\] Fix truthiness: dict-only `**` displays not truthy for `shell` (`S602`, `S604`, `S609`) ([#20177](https://github.com/astral-sh/ruff/pull/20177))
- \[`flake8-simplify`\] Fix diagnostic to show correct method name for `str.rsplit` calls (`SIM905`) ([#20459](https://github.com/astral-sh/ruff/pull/20459))
- \[`flynt`\] Use triple quotes for joined raw strings with newlines (`FLY002`) ([#20197](https://github.com/astral-sh/ruff/pull/20197))
- \[`pyupgrade`\] Fix false positive when class name is shadowed by local variable (`UP008`) ([#20427](https://github.com/astral-sh/ruff/pull/20427))
- \[`pyupgrade`\] Prevent infinite loop with `I002` and `UP026` ([#20327](https://github.com/astral-sh/ruff/pull/20327))
- \[`ruff`\] Recognize t-strings, generators, and lambdas in `invalid-index-type` (`RUF016`) ([#20213](https://github.com/astral-sh/ruff/pull/20213))
### Rule changes
- \[`RUF102`\] Respect rule redirects in invalid rule code detection ([#20245](https://github.com/astral-sh/ruff/pull/20245))
- \[`flake8-bugbear`\] Mark the fix for `unreliable-callable-check` as always unsafe (`B004`) ([#20318](https://github.com/astral-sh/ruff/pull/20318))
- \[`ruff`\] Allow dataclass attribute value instantiation from nested frozen dataclass (`RUF009`) ([#20352](https://github.com/astral-sh/ruff/pull/20352))
### CLI
- Add fixes to `output-format=sarif` ([#20300](https://github.com/astral-sh/ruff/pull/20300))
- Treat panics as fatal diagnostics, sort panics last ([#20258](https://github.com/astral-sh/ruff/pull/20258))
### Documentation
- \[`ruff`\] Add `analyze.string-imports-min-dots` to settings ([#20375](https://github.com/astral-sh/ruff/pull/20375))
- Update README.md with Albumentations new repository URL ([#20415](https://github.com/astral-sh/ruff/pull/20415))
### Other changes
- Bump MSRV to Rust 1.88 ([#20470](https://github.com/astral-sh/ruff/pull/20470))
- Enable inline noqa for multiline strings in playground ([#20442](https://github.com/astral-sh/ruff/pull/20442))
### Contributors
- [@chirizxc](https://github.com/chirizxc)
- [@danparizher](https://github.com/danparizher)
- [@IDrokin117](https://github.com/IDrokin117)
- [@amyreese](https://github.com/amyreese)
- [@AlexWaygood](https://github.com/AlexWaygood)
- [@dylwil3](https://github.com/dylwil3)
- [@njhearp](https://github.com/njhearp)
- [@woodruffw](https://github.com/woodruffw)
- [@dcreager](https://github.com/dcreager)
- [@TaKO8Ki](https://github.com/TaKO8Ki)
- [@BurntSushi](https://github.com/BurntSushi)
- [@salahelfarissi](https://github.com/salahelfarissi)
- [@MichaReiser](https://github.com/MichaReiser)
## 0.13.2
Released on 2025-09-25.
### Preview features
- \[`flake8-async`\] Implement `blocking-path-method` (`ASYNC240`) ([#20264](https://github.com/astral-sh/ruff/pull/20264))
- \[`flake8-bugbear`\] Implement `map-without-explicit-strict` (`B912`) ([#20429](https://github.com/astral-sh/ruff/pull/20429))
- \[`flake8-bultins`\] Detect class-scope builtin shadowing in decorators, default args, and attribute initializers (`A003`) ([#20178](https://github.com/astral-sh/ruff/pull/20178))
- \[`ruff`\] Implement `logging-eager-conversion` (`RUF065`) ([#19942](https://github.com/astral-sh/ruff/pull/19942))
- Include `.pyw` files by default when linting and formatting ([#20458](https://github.com/astral-sh/ruff/pull/20458))
### Bug fixes
- Deduplicate input paths ([#20105](https://github.com/astral-sh/ruff/pull/20105))
- \[`flake8-comprehensions`\] Preserve trailing commas for single-element lists (`C409`) ([#19571](https://github.com/astral-sh/ruff/pull/19571))
- \[`flake8-pyi`\] Avoid syntax error from conflict with `PIE790` (`PYI021`) ([#20010](https://github.com/astral-sh/ruff/pull/20010))
- \[`flake8-simplify`\] Correct fix for positive `maxsplit` without separator (`SIM905`) ([#20056](https://github.com/astral-sh/ruff/pull/20056))
- \[`pyupgrade`\] Fix `UP008` not to apply when `__class__` is a local variable ([#20497](https://github.com/astral-sh/ruff/pull/20497))
- \[`ruff`\] Fix `B004` to skip invalid `hasattr`/`getattr` calls ([#20486](https://github.com/astral-sh/ruff/pull/20486))
- \[`ruff`\] Replace `-nan` with `nan` when using the value to construct a `Decimal` (`FURB164` ) ([#20391](https://github.com/astral-sh/ruff/pull/20391))
### Documentation
- Add 'Finding ways to help' to CONTRIBUTING.md ([#20567](https://github.com/astral-sh/ruff/pull/20567))
- Update import path to `ruff-wasm-web` ([#20539](https://github.com/astral-sh/ruff/pull/20539))
- \[`flake8-bandit`\] Clarify the supported hashing functions (`S324`) ([#20534](https://github.com/astral-sh/ruff/pull/20534))
### Other changes
- \[`playground`\] Allow hover quick fixes to appear for overlapping diagnostics ([#20527](https://github.com/astral-sh/ruff/pull/20527))
- \[`playground`\] Fix non‑BMP code point handling in quick fixes and markers ([#20526](https://github.com/astral-sh/ruff/pull/20526))
### Contributors
- [@BurntSushi](https://github.com/BurntSushi)
- [@mtshiba](https://github.com/mtshiba)
- [@second-ed](https://github.com/second-ed)
- [@danparizher](https://github.com/danparizher)
- [@ShikChen](https://github.com/ShikChen)
- [@PieterCK](https://github.com/PieterCK)
- [@GDYendell](https://github.com/GDYendell)
- [@RazerM](https://github.com/RazerM)
- [@TaKO8Ki](https://github.com/TaKO8Ki)
- [@amyreese](https://github.com/amyreese)
- [@ntbre](https://github.com/ntBre)
- [@MichaReiser](https://github.com/MichaReiser)
## 0.13.3
Released on 2025-10-02.
### Preview features
- Display diffs for `ruff format --check` and add support for different output formats ([#20443](https://github.com/astral-sh/ruff/pull/20443))
- \[`pyflakes`\] Handle some common submodule import situations for `unused-import` (`F401`) ([#20200](https://github.com/astral-sh/ruff/pull/20200))
- \[`ruff`\] Do not flag `%r` + `repr()` combinations (`RUF065`) ([#20600](https://github.com/astral-sh/ruff/pull/20600))
### Bug fixes
- \[`cli`\] Add conflict between `--add-noqa` and `--diff` options ([#20642](https://github.com/astral-sh/ruff/pull/20642))
- \[`pylint`\] Exempt required imports from `PLR0402` ([#20381](https://github.com/astral-sh/ruff/pull/20381))
- \[`pylint`\] Fix missing `max-nested-blocks` in settings display ([#20574](https://github.com/astral-sh/ruff/pull/20574))
- \[`pyupgrade`\] Prevent infinite loop with `I002` and `UP026` ([#20634](https://github.com/astral-sh/ruff/pull/20634))
### Rule changes
- \[`flake8-simplify`\] Improve help message clarity (`SIM105`) ([#20548](https://github.com/astral-sh/ruff/pull/20548))
### Documentation
- Add the *The Basics* title back to CONTRIBUTING.md ([#20624](https://github.com/astral-sh/ruff/pull/20624))
- Fixed documentation for try_consider_else ([#20587](https://github.com/astral-sh/ruff/pull/20587))
- \[`isort`\] Clarify dependency between `order-by-type` and `case-sensitive` settings ([#20559](https://github.com/astral-sh/ruff/pull/20559))
- \[`pylint`\] Clarify fix safety to include left-hand hashability (`PLR6201`) ([#20518](https://github.com/astral-sh/ruff/pull/20518))
### Other changes
- \[`playground`\] Fix quick fixes for empty ranges in playground ([#20599](https://github.com/astral-sh/ruff/pull/20599))
### Contributors
- [@TaKO8Ki](https://github.com/TaKO8Ki)
- [@ntBre](https://github.com/ntBre)
- [@dylwil3](https://github.com/dylwil3)
- [@MichaReiser](https://github.com/MichaReiser)
- [@danparizher](https://github.com/danparizher)
- [@LilMonk](https://github.com/LilMonk)
- [@mgiovani](https://github.com/mgiovani)
- [@IDrokin117](https://github.com/IDrokin117)
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