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False positive on override against IO[str] subclass (overload-selection picks the IO[bytes] overload)

Status: Open.

#24935 In astral-sh/ruff;

· tdhopper opened on Apr 29, 2026

markdown formatting: Preview warning when Ruff is the only markdown formatter

formatterRelated to the formatterRelated to the formatter

serverRelated to the LSP serverRelated to the LSP server

Status: Open.

#24925 In astral-sh/ruff;

· MichaReiser opened on Apr 29, 2026

redefined-while-unused (F811) - false positive on method with the same name as an unused import

bugSomething isn't workingSomething isn't working

Status: Open.

#24915 In astral-sh/ruff;

· DetachHead opened on Apr 29, 2026

Upgrade to mimalloc v3

trackingA "meta" issue that tracks completion of a bigger task via a list of smaller scoped issues.A "meta" issue that tracks completion of a bigger task via a list of smaller scoped issues.

Status: Open.

#24880 In astral-sh/ruff;

· zsol opened on Apr 27, 2026

Allow configuring some exception types to be ignored by B904

configurationRelated to settings and configurationRelated to settings and configuration

needs-decisionAwaiting a decision from a maintainerAwaiting a decision from a maintainer

Status: Open.

#24845 In astral-sh/ruff;

· jonathandung opened on Apr 26, 2026

Can the ruff color "All checks passed!" be made consistent with ty please

cliRelated to the command-line interfaceRelated to the command-line interface

help wantedContributions especially welcomeContributions especially welcome

Status: Open.

#24840 In astral-sh/ruff;

· gertcuykens opened on Apr 25, 2026

ruff ignoring requires-python in pyproject.toml when missing [tool.ruff]

configurationRelated to settings and configurationRelated to settings and configuration

questionAsking for support or clarificationAsking for support or clarification

Status: Open.

#24829 In astral-sh/ruff;

· thejcannon opened on Apr 25, 2026

isort I001 is too general

diagnosticsRelated to reporting of diagnostics.Related to reporting of diagnostics.

isortRelated to import sortingRelated to import sorting

ruleImplementing or modifying a lint ruleImplementing or modifying a lint rule

Status: Open.

#24828 In astral-sh/ruff;

· eternal-sorrow opened on Apr 25, 2026

N805 auto-fix unsafely renames meaningful parameter to self

questionAsking for support or clarificationAsking for support or clarification

Status: Open.

#24827 In astral-sh/ruff;

· Evanroby opened on Apr 25, 2026

N806 special case variables of type type or type[SOMEBASE]

questionAsking for support or clarificationAsking for support or clarification

Status: Open.

#24817 In astral-sh/ruff;

· y2kbugger opened on Apr 24, 2026

PLC1802 mentions sequences, could say "built-in" sequences

questionAsking for support or clarificationAsking for support or clarification

Status: Open.

#24813 In astral-sh/ruff;

· jacobtylerwalls opened on Apr 24, 2026

Formatting a long f-string requires two passes to reach a stable result

bugSomething isn't workingSomething isn't working

formatterRelated to the formatterRelated to the formatter

great writeupA wonderful example of a quality contributionA wonderful example of a quality contribution

Status: Open.

#24807 In astral-sh/ruff;

· stephenwade opened on Apr 23, 2026