Update changelog

Author: thecrypticace

CHANGELOG.md

@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Nothing yet!
+### Fixed
+
+- Fix use of `:where(.btn)` when matching `!btn` ([#10601](https://github.com/tailwindlabs/tailwindcss/pull/10601))
 
 ## [3.2.6] - 2023-02-08