CHANGELOG.md in xml-kit-0.3.1 vs CHANGELOG.md in xml-kit-0.4.0

@@ -1,16 +1,25 @@
-Version 0.3.1
+Version 0.4.0
+
 # Changelog
 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]
-### Changed
 - nil
 
+## [0.4.0] - 2019-04-30
+### Added
+- provide stable API for specifying the digest method and signature method.
+
+### Changed
+- drop support for ruby 2.2
+- drop support for ruby 2.3
+- use bundler 2.0
+
 ## [0.3.1] - 2019-04-01
 ### Changed
 - provide default symmetric cipher for `EncryptedData` element.
 - use `ENVELOPED_SIG` constant
 
@@ -24,9 +33,11 @@
 ### Changed
 - \_assign does not coerce values by default.
 - errors are merged together instead of overwritten during attribute validation.
 
 [Unreleased]: https://github.com/saml-kit/xml-kit/compare/v0.3.1...HEAD
+[Unreleased]: https://github.com/saml-kit/xml-kit/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/saml-kit/xml-kit/compare/v0.3.1...v0.4.0
 [0.3.1]: https://github.com/saml-kit/xml-kit/compare/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/saml-kit/xml-kit/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/saml-kit/xml-kit/compare/v0.1.14...v0.2.0
 [0.1.14]: https://github.com/saml-kit/xml-kit/compare/v0.1.13...v0.1.14
 [0.1.13]: https://github.com/saml-kit/xml-kit/compare/v0.1.12...v0.1.13