v3.0.0

New major release sets the default CSS engine to LightningCSS and upgrades dependencies.

Changed

• Default CSS engine clean-css -> lightning (#36) @renelamo

Fixed

• CSS minification broken in :not() (#27) @ShockedPlot7560

Dependency Updates

• babel-minify: 0.5.1 -> 0.5.2
• clean-css-cli: 4.3.0 -> 5.6.3
• uglify-js: 3.10.0 -> 3.17.4