CHANGELOG.md in truemail-rspec-0.8.0 vs CHANGELOG.md in truemail-rspec-0.9.0

@@ -1,8 +1,22 @@
 # Changelog
 
 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).
 
+## [0.9.0] - 2022-02-23
+
+### Added
+
+- Added development environment guide docs
+
+### Updated
+
+- Updated gem runtime dependencies
+- Updated gem development dependencies
+- Updated minimal Ruby version for RubyGems environment
+- Updated CircleCI configs
+- Updated contributing guide
+
 ## [0.8.0] - 2022-01-25
 
 ### Updated
 
 - Updated gem runtime dependencies