Merge tag 'v0.4.0' into develop

Author: ChrisHines

CHANGELOG.md

@@ -4,10 +4,11 @@ All notable changes to this project will be documented in this file.
 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]
+## [0.4.0] - 2018-11-21
 
 ### Added
 - Go module support by [@ChrisHines]
+- CHANGELOG by [@ChrisHines]
 
 ### Changed
 - Drop invalid runes from keys instead of returning ErrInvalidKey by [@ChrisHines]
@@ -29,6 +30,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Decoder by [@ChrisHines]
 - MarshalKeyvals by [@ChrisHines]
 
+[0.4.0]: https://github.com/go-logfmt/logfmt/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/go-logfmt/logfmt/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/go-logfmt/logfmt/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/go-logfmt/logfmt/commits/v0.1.0