Prepare release 0.4.0

Author: sagikazarmark

CHANGELOG.md

@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+
+## [0.4.0] - 2020-04-03
+
 ### Changed
 
 - Updated dependencies
@@ -47,7 +50,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Initial release
 
 
-[Unreleased]: https://github.com/logur/integration-zap/compare/v0.3.2...HEAD
+[Unreleased]: https://github.com/logur/integration-zap/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/logur/integration-zap/compare/v0.3.2...v0.4.0
 [0.3.2]: https://github.com/logur/integration-zap/compare/v0.3.1...v0.3.2
 [0.3.1]: https://github.com/logur/integration-zap/compare/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/logur/integration-zap/compare/v0.2.0...v0.3.0