Ruby completes switch to Prism parserRuby 3.4.0 and 3.4.1 introduce Prism as the default parser, improving performance and modifying string literal handling.
Ruff - The Fastest Python Linter and Formatter Just Got Faster! - Mouse Vs PythonRuff released a hand-written recursive descent parser in version 0.4.0, offering significant speed improvements for linting and formatting.