Sourced from ruff's releases.

0.15.6

Release Notes

Released on 2026-03-12.

Preview features

• Add support for lazy import parsing (#23755)
• Add support for star-unpacking of comprehensions (PEP 798) (#23788)
• Reject semantic syntax errors for lazy imports (#23757)
• Drop a few rules from the preview default set (#23879)
• [airflow] Flag Variable.get() calls outside of task execution context (AIR003) (#23584)
• [airflow] Flag runtime-varying values in DAG/task constructor arguments (AIR304) (#23631)
• [flake8-bugbear] Implement delattr-with-constant (B043) (#23737)
• [flake8-tidy-imports] Add TID254 to enforce lazy imports (#23777)
• [flake8-tidy-imports] Allow users to ban lazy imports with TID254 (#23847)
• [isort] Retain lazy keyword when sorting imports (#23762)
• [pyupgrade] Add from __future__ import annotations automatically (UP006) (#23260)
• [refurb] Support newline parameter in FURB101 for Python 3.13+ (#23754)
• [ruff] Add os-path-commonprefix (RUF071) (#23814)
• [ruff] Add unsafe fix for os-path-commonprefix (RUF071) (#23852)
• [ruff] Limit RUF036 to typing contexts; make it unsafe for non-typing-only (#23765)
• [ruff] Use starred unpacking for RUF017 in Python 3.15+ (#23789)

Bug fixes

• Fix --add-noqa creating unwanted leading whitespace (#23773)
• Fix --add-noqa breaking shebangs (#23577)
• [formatter] Fix lambda body formatting for multiline calls and subscripts (#23866)
• [formatter] Preserve required annotation parentheses in annotated assignments (#23865)
• [formatter] Preserve type-expression parentheses in the formatter (#23867)
• [flake8-annotations] Fix stack overflow in ANN401 on quoted annotations with escape sequences (#23912)
• [pep8-naming] Check naming conventions in match pattern bindings (N806, N815, N816) (#23899)
• [perflint] Fix comment duplication in fixes (PERF401, PERF403) (#23729)
• [pyupgrade] Properly trigger super change in nested class (UP008) (#22677)
• [ruff] Avoid syntax errors in RUF036 fixes (#23764)

Rule changes

• [flake8-bandit] Flag S501 with requests.request (#23873)
• [flake8-executable] Fix WSL detection in non-Docker containers (#22879)
• [flake8-print] Ignore pprint calls with stream= (#23787)

Documentation

• Update docs for Markdown code block formatting (#23871)
• [flake8-bugbear] Fix misleading description for B904 (#23731)

Contributors

... (truncated)

Sourced from ruff's changelog.

0.15.6

Released on 2026-03-12.

Preview features

• Add support for lazy import parsing (#23755)
• Add support for star-unpacking of comprehensions (PEP 798) (#23788)
• Reject semantic syntax errors for lazy imports (#23757)
• Drop a few rules from the preview default set (#23879)
• [airflow] Flag Variable.get() calls outside of task execution context (AIR003) (#23584)
• [airflow] Flag runtime-varying values in DAG/task constructor arguments (AIR304) (#23631)
• [flake8-bugbear] Implement delattr-with-constant (B043) (#23737)
• [flake8-tidy-imports] Add TID254 to enforce lazy imports (#23777)
• [flake8-tidy-imports] Allow users to ban lazy imports with TID254 (#23847)
• [isort] Retain lazy keyword when sorting imports (#23762)
• [pyupgrade] Add from __future__ import annotations automatically (UP006) (#23260)
• [refurb] Support newline parameter in FURB101 for Python 3.13+ (#23754)
• [ruff] Add os-path-commonprefix (RUF071) (#23814)
• [ruff] Add unsafe fix for os-path-commonprefix (RUF071) (#23852)
• [ruff] Limit RUF036 to typing contexts; make it unsafe for non-typing-only (#23765)
• [ruff] Use starred unpacking for RUF017 in Python 3.15+ (#23789)

Bug fixes

• Fix --add-noqa creating unwanted leading whitespace (#23773)
• Fix --add-noqa breaking shebangs (#23577)
• [formatter] Fix lambda body formatting for multiline calls and subscripts (#23866)
• [formatter] Preserve required annotation parentheses in annotated assignments (#23865)
• [formatter] Preserve type-expression parentheses in the formatter (#23867)
• [flake8-annotations] Fix stack overflow in ANN401 on quoted annotations with escape sequences (#23912)
• [pep8-naming] Check naming conventions in match pattern bindings (N806, N815, N816) (#23899)
• [perflint] Fix comment duplication in fixes (PERF401, PERF403) (#23729)
• [pyupgrade] Properly trigger super change in nested class (UP008) (#22677)
• [ruff] Avoid syntax errors in RUF036 fixes (#23764)

Rule changes

• [flake8-bandit] Flag S501 with requests.request (#23873)
• [flake8-executable] Fix WSL detection in non-Docker containers (#22879)
• [flake8-print] Ignore pprint calls with stream= (#23787)

Documentation

• Update docs for Markdown code block formatting (#23871)
• [flake8-bugbear] Fix misleading description for B904 (#23731)

Contributors

• @​zsol

... (truncated)

• e4c7f35 Bump 0.15.6 (#23919)
• edfe6c1 [ty] Narrow type context during collection literal inference (#23844)
• dd16d68 Exclude broken symlink in ecosystem check (#23921)
• 3f94c6a Fix stack overflow in ANN401 on quoted annotations with escape sequences (#23...
• 91fc7bd [ty] Fix false-positive diagnostics for PEP-604 union annotations on attribut...
• 04229cf [ty] Initial test suite for PEP-728 TypedDict features (#23832)
• 728b9d6 [pep8-naming] Check naming conventions in match pattern bindings (N806,...
• 88d1eec [ty] Ensure a type[] type T is always considered assignable to a union th...
• 37cdd61 Fix lambda body formatting for multiline calls and subscripts (#23866)
• a25a4df [ty] Disambiguate duplicate-looking overloaded callables in union display (#2...
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