CHANGELOG.md in alba-3.3.3 vs CHANGELOG.md in alba-3.4.0

- old
+ new

@@ -4,9 +4,15 @@
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [3.4.0] 2024-12-01
+
+### Added
+
+- `Alba.serialize` now works with heterogeneous collection [#396](https://github.com/okuramasafumi/alba/pull/396)
+
 ## [3.3.3] 2024-11-09
 
 ### Fixed
 
 - TypedAttribute now respects prefer_resource_method! [#391](https://github.com/okuramasafumi/alba/pull/391)