Ruff v0.16 expands default rule set from 59 to 413 rules, replacing need for separate linters like Black, Flake8, and isort while running 10-100x faster.
Summary
Developers get stricter linting out-of-the-box without configuration, catching syntax errors and runtime issues automatically. Markdown code block formatting and improved suppression comments reduce boilerplate in mixed-content projects.
Why it matters
Developers get stricter linting out-of-the-box without configuration, catching syntax errors and runtime issues automatically. Markdown code block formatting and improved suppression comments reduce boilerplate in mixed-content projects.
Implementation verdict
Replaces Black, Flake8 (plus plugins), isort, pydocstyle, pyupgrade—install from PyPI and update config for breaking changes (revert with `select = ["E4", "E7", "E9", "F"]` if needed). Ready now; most users update without code changes. Markdown formatting stabilized; ruff: ignore comments add expressiveness over noqa.
Sources
Dev Signal
Get briefs like this in your inbox — free, every weekday.
100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.