- [#4337](https://github.com/less/less.js/pull/4337) Add support for layer at-rule (@puckowski) - [#4340](https://github.com/less/less.js/pull/4340) Add support for import at-rule layer functionality (@puckowski) - [#4346](https://github.com/less/less.js/pull/4346) Fix [#4343](https://github.com/less/less.js/issues/4343) add color operands (@puckowski)