Update:

tailwindlabs/tailwindcss v4.1.18: v4.1.18

GitHub·Web·Silent·12/11/2025

### Fixed - Ensure validation of `source(…)` happens relative to the file it is in ([#19274](https://github.com/tailwindlabs/tailwindcss/pull/19274)) - Include filename and line numbers in CSS parse errors ([#19282](https://github.com/tailwindlabs/tailwindcss/pull/19282)) - Skip comments in Rub

Why it matters → tailwindcss released an update. Review the changelog for relevant changes.

Who should care → Teams using tailwindcss.

tailwindcss

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Source payload preview

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  "body": "### Fixed\r\n\r\n- Ensure validation of `source(…)` happens relative to the file it is in ([#19274](https://github.com/tailwindlabs/tailwindcss/pull/19274))\r\n- Include filename and line numbers in CSS parse errors ([#19282](https://github.com/tailwindlabs/tailwindcss/pull/19282))\r\n- Skip comments in Ruby files when checking for class names ([#19243](https://github.com/tailwindlabs/tailwindcss/pull/19243))\r\n- Skip over arbitrary property utilities with a top-level `!` in the value ([#19243](https://github.com/tailwindlabs/tailwindcss/pull/19243))\r\n- Support environment API in `@tailwindcss/vite` ([#18970](https://github.com/tailwindlabs/tailwindcss/pull/18970))\r\n- P
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