diff --git a/CHANGELOG.md b/CHANGELOG.md
index a23fd0e68..c70ef0a15 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,35 @@
-# Revision History
+# Changelog
+
+All notable changes to this project will be documented in this file.
+This project adheres to [Semantic Versioning](https://semver.org/).
+
+## x.y.z
+
+### Added
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+## 8.5.0
+
+### Added
+
+- Add a method to get an import's media queries (#384)
+- Add more unit tests (#381, #382)
+
+### Fixed
+
+- Retain CSSList and Rule comments when rendering CSS (#351)
+- Replace invalid `turns` unit with `turn` (#350)
+- Also allow string values for rules (#348)
+- Fix invalid calc parsing (#169)
+- Handle scientific notation when parsing sizes (#179)
+- Fix PHP 8.1 compatibility in `ParserState::strsplit()` (#344)
 
 ## 8.4.0
 
diff --git a/composer.json b/composer.json
index a1f5677b6..6b7c96078 100644
--- a/composer.json
+++ b/composer.json
@@ -35,6 +35,11 @@
             "Sabberworm\\CSS\\Tests\\": "tests/"
         }
     },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "9.0.x-dev"
+        }
+    },
     "scripts": {
         "ci": [
             "@ci:static"