update CHANGELOG.md

CHANGELOG.md

@@ -5,9 +5,14 @@ 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]
+## [2.4.0] - 2020-02-12
+### Added
+- Use Python type hint
+
 ### Changed
 - Refactoring Python import
 - Move Python aws exception in dedicated function
+- Increase waiting time during end-to-end tests
 
 ## [2.3.0] - 2019-11-26
 ### Added
@@ -174,7 +179,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - rds instances support with scheduler
 - rds clusters support with scheduler
 
-[Unreleased]: https://github.com/diodonfrost/terraform-aws-lambda-scheduler-stop-start/compare/2.3.0...HEAD
+[Unreleased]: https://github.com/diodonfrost/terraform-aws-lambda-scheduler-stop-start/compare/2.4.0...HEAD
+[2.4.0]: https://github.com/diodonfrost/terraform-aws-lambda-scheduler-stop-start/compare/2.3.0...2.4.0
 [2.3.0]: https://github.com/diodonfrost/terraform-aws-lambda-scheduler-stop-start/compare/2.2.1...2.3.0
 [2.2.1]: https://github.com/diodonfrost/terraform-aws-lambda-scheduler-stop-start/compare/2.2.0...2.2.1
 [2.2.0]: https://github.com/diodonfrost/terraform-aws-lambda-scheduler-stop-start/compare/2.1.5...2.2.0