What's Changed
Deprecations
The format command-line argument and configuration option has been renamed to output-format. While Ruff will continue to respect format when passed as a command-line argument or configuration option, this backwards-compatible support will be dropped in a future release. See: astral-sh/ruff#7514.
Rules

[flake8-bandit] Implement S201: flask-debug-true by @mkniewallner in feat(rules): implement flake8-bandit S201 (flask_debug_true) astral-sh/ruff#7503
[flake8-bandit] Implement S507: ssh_no_host_key_verification by @mkniewallner in feat(rules): implement flake8-bandit S507 (ssh_no_host_key_verification) astral-sh/ruff#7528
[flake8-logging] Implement LOG002: invalid-get-logger-argument by @dhruvmanila in [flake8-logging] Implement LOG002: invalid-get-logger-argument astral-sh/ruff#7399
[flake8-logging] Implement LOG007: exception-without-exc-info by @qdegraaf in [flake8-logging] Implement LOG007: ExceptionWithoutExcInfo astral-sh/ruff#7410
[refurb] Implement FURB140: reimplemented-starmap by @SavchenkoValeriy in [refurb] Implement reimplemented-starmap rule (FURB140) astral-sh/ruff#7253
[refurb] Implement FURB148: unnecessary-enumerate by @tjkuson in [refurb] Implement unnecessary-enumerate (FURB148) astral-sh/ruff#7454
[ruff] Detect asyncio.get_running_loop calls in RUF006 by @charliermarsh in Detect asyncio.get_running_loop calls in RUF006 astral-sh/ruff#7562

Settings

Show --no-X variants in CLI help by @charliermarsh in Show --no-X variants in CLI help astral-sh/ruff#7504
Rename format option to output-format by @MichaReiser in Rename format option to output-format astral-sh/ruff#7514
Enable tab completion for ruff rule by @charliermarsh in Enable tab completion for ruff rule astral-sh/ruff#7560

Bug Fixes

Add padding to prevent some autofix errors by @charliermarsh in Add padding to prevent some autofix errors astral-sh/ruff#7461
Remove parentheses when rewriting assert calls to statements by @charliermarsh in Remove parentheses when rewriting assert calls to statements astral-sh/ruff#7464
Avoid flagging starred elements in C402 by @charliermarsh in Avoid flagging starred elements in C402 astral-sh/ruff#7466
Extend bad-dunder-method-name to permit attrs dunders by @tjkuson in Extend bad-dunder-method-name to permit attrs dunders astral-sh/ruff#7472
Avoid N802 violations for @overload methods by @JonathanPlasse in Avoid N802 violations for @overload methods astral-sh/ruff#7498
Avoid flagging starred expressions in UP007 by @charliermarsh in Avoid flagging starred expressions in UP007 astral-sh/ruff#7505
Ensure that LOG007 only triggers on .exception() calls by @charliermarsh in Ensure that LOG007 only triggers on .exception() calls astral-sh/ruff#7524
Use strict sorted and union for NoQA mapping insertion by @dhruvmanila in Use strict sorted and union for NoQA mapping insertion astral-sh/ruff#7531
Avoid inserting imports directly after continuation by @charliermarsh in Avoid inserting imports directly after continuation astral-sh/ruff#7553
Add padding in PERF102 fixes by @charliermarsh in Add padding in PERF102 fixes astral-sh/ruff#7554
Avoid invalid fix for parenthesized values in F601 by @charliermarsh in Avoid invalid fix for parenthesized values in F601 astral-sh/ruff#7559
Treat os.error as an OSError alias by @charliermarsh in Treat os.error as an OSError alias astral-sh/ruff#7582
Extend bad-dunder-method-name to permit __html__ by @jaap3 in Extend bad-dunder-method-name to permit __html__ astral-sh/ruff#7492
Fix stylist indentation with a formfeed by @konstin in Fix stylist indentation with a formfeed astral-sh/ruff#7489

New Contributors

@MicaelJarniac made their first contribution in Use MkDocs' not_in_nav astral-sh/ruff#5498
@maheshsaripalli9 made their first contribution in Update flake8-self license to MIT astral-sh/ruff#7552
@T-256 made their first contribution in Bump lint rules count to 700 astral-sh/ruff#7585

Full Changelog: astral-sh/ruff@v0.0.290...v0.0.291