# Changes to PostCSS Cascade Layers ### 4.0.2 _December 15, 2023_ - Fix type definitions - Updated [`@csstools/selector-specificity`](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity) to [`3.0.1`](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity/CHANGELOG.md#301) (patch) ### 4.0.1 _October 31, 2023_ - Improve performance ### 4.0.0 _July 3, 2023_ - Change license to `MIT-0` ([read more about this change in the blog post](https://preset-env.cssdb.org/blog/license-change/)) - Updated [`@csstools/selector-specificity`](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity) to [`3.0.0`](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity/CHANGELOG.md#300) (major) [Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-cascade-layers/CHANGELOG.md)