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
 
 - _Upgrade (experimental)_: Do not migrate legacy classes with custom values ([#14976](https://github.com/tailwindlabs/tailwindcss/pull/14976))
+- _Upgrade (experimental)_: Ensure it's safe to perform suffix-less candidate migrations ([#14979](https://github.com/tailwindlabs/tailwindcss/pull/14979))
 
 ## [4.0.0-alpha.33] - 2024-11-11