# Changes to CSS Syntax Patches For CSSTree

### 1.1.1

_March 14, 2026_

- Remove patch for `<'filter'>`
- Add `css-tree` as an optional peer dependency to set version constraints
- Update `@webref/css` to [`v8.4.0`](https://github.com/w3c/webref/releases/tag/%40webref%2Fcss%408.4.0)

[Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/packages/css-syntax-patches-for-csstree/CHANGELOG.md)