Ruff

This patch release (0.15.4) resolves a critical panic that occurred when enabling the new rule PLR1712 alongside definition-analyzing rules. It also includes a fix for a pyflakes false positive in stub files.

This release significantly expands the default rule set available in preview mode, adding 412 rules while removing a few older, overlapping ones. It also includes various bug fixes across several integrated linters and parser improvements.

This release introduces significant improvements to Markdown formatting support, expands preview features for Airflow compatibility, and fixes numerous bugs across various integrated linters. Notably, new rules like `RUF069` for float equality comparison were added.

This release introduces the new 2026 style guide for formatting and stabilizes numerous linter rules. It also adds support for block-level suppression comments in the linter.

This release introduces several preview features, including better lambda body parenthesis preservation and duplicate `__all__` detection. Numerous rule fixes were applied, with many now marked as unsafe if they would remove comments.

Release 0.14.13 mirrors 0.14.12, containing preview feature enhancements for linting rules and bug fixes related to configuration display and formatting skips. A change was also introduced requiring explicit logging initialization for WASM builds.

Ruff 0.14.11 introduces several preview diagnostics, new rule enhancements, and configuration improvements, along with bug fixes and expanded Python 3.15 preview support.

Ruff 0.14.10 introduces fluent formatter enhancements, new linting rules, and several rule behavior updates along with bug fixes and documentation improvements.

Ruff 0.14.9 introduces new RUF100 diagnostics, adds pylint PLW0133 detection, improves performance with memchr, and includes several bug fixes and rule updates.

Ruff 0.14.8 introduces new preview lint rules for flake8-bugbear and flake8-use-pathlib, and fixes several false‑positive and truthiness bugs.

Ruff 0.14.7 introduces new preview rules (RUF066, RUF052) and several linting fixes, adds a CLI fixability indicator, and includes bug fixes for server diagnostics, ISC003 handling, and IPython parsing.

Ruff 0.14.6 adds preview support for new PySNMP API paths, new CLI options for hyperlink rendering and skipping TYPE_CHECKING imports, and includes several bug fixes and rule improvements.

Ruff 0.14.5 introduces several preview linting rules, new CLI options, and improvements to configuration error messages while fixing multiple false‑positive bugs.

Ruff 0.14.4 adds several preview formatter and refurb enhancements, fixes diagnostics and rule issues, and improves Jupyter notebook support.

Ruff 0.14.3 introduces several preview features such as `--output-format` support with `--watch` and new eager conversion patterns, fixes numerous false‑positive bugs, and adds a breaking change by removing the Airflow `DAG.create_dagrun` API.

Ruff 0.14.2 adds a preview feature for flake8-gettext, improves CLI JSON output, and introduces DiagnosticTag support, while fixing numerous bugs across fastapi, pyupgrade, and other rules.

Ruff 0.14.1 adds several preview features, fixes numerous false‑positive/negative bugs, introduces new rule warnings and tags, updates Python compatibility to 3.14, and reduces binary size.

Ruff 0.14.0 updates the default Python target to 3.14, adds several preview rule enhancements, and includes numerous bug fixes across flake8‑annotations, flynt, isort, and Ruff itself.

Ruff 0.13.3 introduces diff display for format checks, new import handling, and several rule improvements, along with bug fixes and documentation updates.

Ruff 0.13.2 adds several new preview linting rules, includes `.pyw` files by default, and fixes a range of bugs across multiple flake8 plugins and core checks.

Ruff 0.13.1 introduces several preview lint fixes, new rule behaviors, CLI improvements, and numerous bug fixes, while raising the Rust MSRV to 1.88.

Ruff 0.13.0 introduces automatic future‑annotations insertion for several rules, tighter first‑party import detection, removal of the deprecated macOS config fallback, and adds preview support for UP043 in stub files along with uv formatter backend support.

Ruff 0.12.12 introduces default display of fixes, several new and adjusted linting rules (including Airflow schedule conversion and a blocking‑input rule), and a collection of bug fixes and documentation updates.

Ruff 0.12.11 introduces several preview features across airflow, flake8-async, flake8-logging-format, and flake8-use-pathlib, along with bug fixes for false positives and whitespace handling. No breaking changes are reported, and upgrade steps are straightforward.

Ruff 0.12.10 introduces preview fixes for flake8‑simplify and flake8‑use‑pathlib, improves rule behavior for E731 and F811, and includes several bug fixes across isort and pyupgrade.

Ruff 0.12.9 introduces new preview checks, rule updates, bug fixes, and improved output formatting without breaking changes.

Ruff 0.12.8 adds a preview expansion of PTH201 for all PurePath subclasses, introduces several rule updates, and fixes numerous bugs across flake8, isort, pylint, pyupgrade, and Ruff itself.

Ruff 0.12.7 republishes 0.12.6 with corrected package metadata and includes preview features, numerous bug fixes, a rule change, and a small performance enhancement.

Ruff 0.12.5 introduces autofixes for several pathlib-related lint rules and adds support for byte strings, while fixing parser panics, rule handling bugs, and false positives.

Ruff 0.12.4 introduces new preview features for future annotations, autofixes, and indirect pathlib detection, along with numerous bug fixes and rule adjustments.

Ruff 0.12.3 adds new autofixes for many pathlib rules, supports non-context-manager calls in B017, and includes several bug fixes and documentation improvements.

Ruff 0.12.2 introduces preview features for flake8-pyi and pyupgrade, adds several rule adjustments, and includes numerous bug fixes and documentation updates.

This release adds several new lint rules and autofixes, improves formatter handling, and includes numerous bug fixes and safety enhancements across multiple plugins.

Ruff 0.12.0 introduces stricter syntax‑error detection, updates f‑string handling, drops the `rust-toolchain.toml` from distributions, deprecates the pandas‑df‑variable‑name rule, adds preview checks for pytest helpers, and includes numerous bug fixes.

Ruff 0.11.13 introduces several preview features, adds Python 3.14 t‑string support, and includes bug fixes across multiple plugins.

Ruff 0.11.12 adds several new preview rules and autofixes, improves diagnostics, and fixes bugs across multiple plugins.

Ruff 0.11.11 introduces several preview Airflow and flake8‑simplify autofixes, adds a CLI formatter warning improvement, and includes bug fixes for match‑case formatting and a pylint rule.

Ruff 0.11.10 introduces several preview features such as recursive RUF060 checks and new Airflow rule autofixes, adds rule deprecations, fixes numerous bugs, and disables jemalloc on Android.

Ruff 0.11.9 introduces several preview features—including defaulting to the latest Python version and a new `in‑empty‑collection` rule—adds a virtual‑env option for `ruff analyze graph`, and fixes a range of bugs and documentation updates.

Ruff 0.11.8 introduces several preview Airflow rules, new syntax‑error detections, and numerous bug fixes, while adding Python 3.14 support and a configuration option to disable typing_extensions imports.

Ruff 0.11.7 introduces several preview features and rule enhancements, fixes bugs across multiple plugins, and adds documentation for fix safety.

Ruff 0.11.6 introduces preview features for docstring handling and Airflow rule extraction, and fixes a syntax error when a backslash appears at the end of a file.

Ruff 0.11.5 introduces several new Airflow and syntax‑error checks, updates rule handling, and fixes false‑positive bugs across flake8 plugins.

Ruff 0.11.4 adds preview support for new syntax‑error checks and the RUF102 rule, and fixes issues with match pattern assignments and typing.Annotated handling.

Ruff 0.11.3 introduces numerous new linting rules and syntax‑error detections, adds autofixes for Airflow rules, expands trusted‑input handling, and includes several bug fixes and CLI improvements.

Ruff 0.11.2 includes a preview fix that eliminates false‑positive syntax‑error reports for variadic parameter annotations on Python <3.11.

Ruff 0.11.1 introduces new airflow chain utilities, several syntax‑error preview improvements, a new `--exit-non-zero-on-format` flag, and fixes across server handling, flake8‑bandit, refurb, and statistics reporting.

Ruff 0.11.0 introduces updated Python version inference based on `requires-python`, stabilizes PGH004 detection, and adds a preview syntax-errors feature for tuple unpacking before Python 3.9.

Ruff 0.10.0 adds several breaking changes—including updated TYPE_CHECKING handling, stricter noqa parsing, and a Docker base image bump—while deprecating two rules and some configuration options.

Ruff 0.9.10 introduces a preview rule RUF059 and expands syntax‑error detection for older Python versions, while fixing several bugs and adjusting the GitLab output serializer.

Ruff 0.9.9 adds a preview fix for caching unsupported-syntax errors and adjusts editor behavior to display those errors only when preview mode is enabled.

Ruff 0.9.8 introduces preview syntax‑error detection, several new lint rules, expanded server configuration options, a per‑file target version setting, and numerous bug fixes and documentation updates.

Ruff 0.9.7 introduces several preview features, new linting rules, and improvements to the language server and CLI, while fixing numerous bugs across multiple plugins and the formatter.

Ruff 0.9.6 introduces new Airflow task markers, optional strict module name checks, several new linting rules, server root exclusions, and fixes bugs in flake8-datetime and flake8-type-checking.

Ruff 0.9.5 adds numerous preview features, rule enhancements, and bug fixes while deprecating the `lint.extendIgnore` setting and ruff‑lsp related settings.

Ruff 0.9.4 introduces several preview features, rule enhancements, CLI improvements, and bug fixes, along with updated documentation.

This release introduces several new preview features across various linters, including PEP 695 generics support and new Ruff rules. It also includes numerous bug fixes and improvements to existing rule logic, particularly around import handling and code generation.

Ruff 0.9.2 introduces numerous preview features, rule enhancements, formatter and server improvements, and a collection of bug fixes, while removing the deprecated "flatten" configuration option.

Ruff 0.9.1 introduces several preview diagnostics, improves rule messages, adds a formatter tweak, and fixes bugs in the server sync and specific lint rules.