Updated Changelod.md

Changelog.md

@@ -2,6 +2,30 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
+## 0.5.0
+
+### Added
+
+- [#55](https://github.com/bitExpert/disco/pull/55) Introducing aliases for Beans
+- [#53](https://github.com/bitExpert/disco/pull/53) Switched to PHP_EOL.
+- [#52](https://github.com/bitExpert/disco/pull/52) Primitive types can be returned from the bean methods.
+- [#49](https://github.com/bitExpert/disco/issues/49) Upgraded ProxyManger to version 2.x and dropped support for PHP 5.x.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- [#59](https://github.com/bitExpert/disco/pull/59) Session refactoring
+- [#56](https://github.com/bitExpert/disco/pull/56) Fixed an issue with the serialization of the BeanFactory instance.
+- [#51](https://github.com/bitExpert/disco/pull/51) Fixed $reader property type hint.
+- [#50](https://github.com/bitExpert/disco/pull/50) Added null check in BeanFactoryPostProcessor.
+
 ## 0.4.0
 
 ### Added