• Better quote() compliance (@Cerdic)
• Improve string compliance with sass-spec (@Cerdic)
• Fix issue with argument values being swapped (@jljr222, @Cerdic)
• Fix parsing of comment in selector list (@Daijobou, @Cerdic)
• Fix for double dash in class names (@janstieler, @Cerdic)
• Drop support for /foo/ selector (@Cerdic)
• Fix compatibility issues with PHP 5.6 and 7.2 (@stof)
• Migrate from throwParseError to parseError factory (@stof)
• Refactor Number for better spec compliance of units (@stof)
• Remove dead code, support for numbered output, and ruby-sass tests (@stof)
• Remove experimental spaceship operator and @break and @continue (@stof)
• Deprecate Compiler::addFeature() (@stof)
• Move gh-pages to /docs folder on main branch (@stof, @robocoder)
• Add php 8 support for phpunit (@adlenton)