CHANGELOG.md in hatenablog-0.8.0 vs CHANGELOG.md in hatenablog-0.9.0

- old
+ new

@@ -4,9 +4,15 @@
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
 
+## 0.9.0 - 2022-04-11
+
+### Added
+
+- [feat: Add `updated` parameter to post_entry](https://github.com/kymmt90/hatenablog/pull/29)
+
 ## 0.8.0 - 2021-11-20
 
 ### Added
 
 - [Create the signature with RBS](https://github.com/kymmt90/hatenablog/pull/24)