update changelog

Author: RobinMalfait

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Detect classes in new files when using `@tailwindcss/postcss` ([#14829](https://github.com/tailwindlabs/tailwindcss/pull/14829))
+- Fix crash when using `@source` containing `..` ([#14831](https://github.com/tailwindlabs/tailwindcss/pull/14831))
 
 ## [4.0.0-alpha.31] - 2024-10-29