# Changes to Media Query List Parser ### 2.1.7 _December 31, 2023_ - Updated [`@csstools/css-tokenizer`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer) to [`2.2.3`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer/CHANGELOG.md#223) (patch) - Updated [`@csstools/css-parser-algorithms`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms) to [`2.5.0`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms/CHANGELOG.md#250) (minor) ### 2.1.6 _December 15, 2023_ - Fix type definitions - Only `walk` child nodes if they are still part of the current AST tree [#1202](https://github.com/csstools/postcss-plugins/issues/1202) - Make `walk` methods safe for mutations [#1204](https://github.com/csstools/postcss-plugins/issues/1204) - Updated [`@csstools/css-tokenizer`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer) to [`2.2.2`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer/CHANGELOG.md#222) (patch) - Updated [`@csstools/css-parser-algorithms`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms) to [`2.4.0`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms/CHANGELOG.md#240) (minor) ### 2.1.5 _September 24, 2023_ - Updated [`@csstools/css-tokenizer`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer) to [`2.2.1`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer/CHANGELOG.md#221) (patch) - Updated [`@csstools/css-parser-algorithms`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms) to [`2.3.2`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms/CHANGELOG.md#232) (patch) [Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/packages/media-query-list-parser/CHANGELOG.md)