Update changelog

Author: adamwathan

CHANGELOG.md

@@ -31,6 +31,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Preserve explicit `leading-*`, `tracking-*`, and `font-{weight}` value when overriding font-size ([#14403](https://github.com/tailwindlabs/tailwindcss/pull/14403))
 - Disallow negative bare values in core utilities and variants ([#14453](https://github.com/tailwindlabs/tailwindcss/pull/14453))
 - Preserve explicit shadow color when overriding shadow size ([#14458](https://github.com/tailwindlabs/tailwindcss/pull/14458))
+- Preserve explicit transition duration and timing function when overriding transition property ([#14490](https://github.com/tailwindlabs/tailwindcss/pull/14490))
 
 ## [4.0.0-alpha.24] - 2024-09-11