With this release, we’ve greatly improved the optimization and loading times of your websites. Sites now build and load faster because the CSS is minified with esbuild instead of csso. esbuild is much faster and better at de-duplicating certain advanced CSS rules, which means you will experience significantly lighter CSS files for complex pages. For our own site, we saw a 60% improvement in CSS size and a 4x speed up for optimization times. To get the same advantages, re-publish your site.