# Changes to Selector Specificity ### 3.1.1 _May 13, 2024_ - Prevent mutation of selectors with An+B microsyntax (e.g. `:nth-child(2n+1 of .foo)`) during specificity calculation ### 3.1.0 _May 11, 2024_ - Add an option to `selectorSpecificity` and `specificityOfMostSpecificListItem` to customize the calculation - Add `specificityOfMostSpecificListItem` as an exported function ### 3.0.3 _March 31, 2024_ - Add support for: - `:active-view-transition` - `:active-view-transition-type(foo)` [Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity/CHANGELOG.md)