CssMinimizerWebpackPlugin

Webpack plugin that minifies CSS using cssnano, with optional support for csso, clean-css, esbuild, and swc. Current stable version is 8.0.0, released 2026-03-02, requiring Node.js >= 20.9.0 and Webpack ^5. Unlike optimize-css-assets-webpack-plugin, it offers better source map handling, caching, and parallel processing via worker threads. Release cadence is roughly annual with patch releases for bug fixes. Ships TypeScript types.