# Changes to PostCSS OKLab Function

### 5.0.15

_October 2, 2026_

- Correctly nest conditional rules inside `@function` instead of cloning the `@function` rule.
- Updated [`@csstools/postcss-progressive-custom-properties`](https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-progressive-custom-properties) to [`5.1.4`](https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-progressive-custom-properties/CHANGELOG.md#514) (patch)
- Updated [`@csstools/css-color-parser`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-color-parser) to [`4.2.6`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-color-parser/CHANGELOG.md#426) (patch)

[Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-oklab-function/CHANGELOG.md)