This release upgrades the bundled Ruff version to `v0.9.8` and includes some additional improvements:
- Allow arbitrary config keys in `ruff.configuration` ([702](https://github.com/astral-sh/ruff-vscode/pull/702))
- Make it easier for Windows users to test red-knot ([703](https://github.com/astral-sh/ruff-vscode/pull/703))
**Full Changelog**: https://github.com/astral-sh/ruff-vscode/compare/2025.10.0...2025.12.0