Update changelog

Author: adamwathan

CHANGELOG.md

@@ -19,6 +19,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add support for "arbitrary properties" ([#6161](https://github.com/tailwindlabs/tailwindcss/pull/6161))
 - Add `portrait` and `landscape` variants ([#6046](https://github.com/tailwindlabs/tailwindcss/pull/6046))
 - Add `aspect-attrs` utility by default ([#6178](https://github.com/tailwindlabs/tailwindcss/pull/6178))
+- Add `text-decoration-style`, `text-decoration-thickness`, and `text-underline-offset` utilities ([#6004](https://github.com/tailwindlabs/tailwindcss/pull/6004))
+
+### Changed
+
+- Deprecate `decoration-slice` and `decoration-break` in favor `box-decoration-slice` and `box-decoration-break` _(non-breaking)_ ([#6004](https://github.com/tailwindlabs/tailwindcss/pull/6004))
 
 ## [3.0.0-alpha.2] - 2021-11-08