CSSO 4.0 is out – drop Node.js < 8, update dependencies, change bundle files Release notes: github.com/css/csso/relea…

csso-cli 3.0.0 is out – drop Node.js < 8, update dependencies, fix --usage option and source map generation inconsistency across Node.js versions github.com/css/csso-cli/r…

CSSO 4.0.2 is out with a couple of long awaiting bug fixes: - crashes on broken CSS (instead of just removing bad parts) - wrongly removed percentage sign for `0%` in some cases github.com/css/csso/relea…

postcss-csso 4.0 is out! Drop Node.js < 8.0, update dependencies to latest CSSO & PostCSS github.com/lahmatiy/postc…

CSSO 4.1 is out with latest css-tree under the hood and a few bug fixes Release notes: github.com/css/csso/relea…

CSSO 4.2 is out – now it trim value in Custom Properties and fixes a couple of bugs github.com/css/csso/relea…

🚀 CSSO 5.0 just published Migrated to ESM (CommonJS is still supported), added support for CSS Selectors Level 4 in specificity calculation Release notes: github.com/css/csso/relea…

CSS minifier we use in SVGO got new major!

🚀 postcss-csso 6.0 The PostCSS plugin is now using latest CSSO and CSSTree, added ESM support Release notes: github.com/lahmatiy/postc…

CSSO 3.2 – Improvements for keyframes rules, new option to force media rules merge, fixed named color compression github.com/css/csso/relea…

csso-cli 1.1 – Added 3 new options, most interesting is `--watch` to run CLI in watch for input file changes mode github.com/css/csso-cli/r…

With CSSO 3.2 you may not need for css-mqpacker anymore github.com/css/csso/relea… //cc Vitaly Harisov

Released postcss-csso 3.0 with PostCSS 6.0 as dependency and latest CSSO github.com/lahmatiy/postc…

CSSO 3.3.1 is out – fixes merge of `position` declarations when `sticky` fallback is using. Thanks to Nikolay Sadovnikov github.com/css/csso/relea…

SVGO 1.0 is out! With this version SVGO is using CSSO's usage data feature to strip out unused styles 🎉 github.com/svg/svgo/relea…

CSSO 3.4 is out – improvements and fixes with unit removal of zero values github.com/css/csso/relea…

CSSO 3.5 is out – reworked to use latest csstree (1.0.0-alpha.27) github.com/css/csso/relea…

csso and django-pipeline peterbe.com/plog/csso-and-… Django Gold Also contains a reasonable comparison for why csso is probably the best CSS minification tool out there today.