Add change log

Author: philipp-spiess

CHANGELOG.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Show suggestions for fractions in IntelliSense ([#16353](https://github.com/tailwindlabs/tailwindcss/pull/16353))
 - Don’t replace `_` in suggested theme keys ([#16433](https://github.com/tailwindlabs/tailwindcss/pull/16433))
 - Ensure `--default-outline-width` can be used to change the `outline-width` value of the `outline` utility
+- Ensure drop shadow utilities don't inherit unexpectedly ([#16471](https://github.com/tailwindlabs/tailwindcss/pull/16471))
 
 ## [4.0.6] - 2025-02-10