Update changelog

Author: adamwathan

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- Nothing yet!
+
+## [3.0.8] - 2021-12-28
+
 ### Fixed
 
 - Reduce specificity of `abbr` rule in preflight ([#6671](https://github.com/tailwindlabs/tailwindcss/pull/6671))
@@ -1745,7 +1749,8 @@ No release notes
 
 - Everything!
 
-[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.7...HEAD
+[unreleased]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.8...HEAD
+[3.0.8]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.7...v3.0.8
 [3.0.7]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.6...v3.0.7
 [3.0.6]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.5...v3.0.6
 [3.0.5]: https://github.com/tailwindlabs/tailwindcss/compare/v3.0.4...v3.0.5