chore: pin milestone 5 section (#1716)

CHANGELOG.md

@@ -7,14 +7,42 @@ This file will not cover changes about documentation, code clean-up, samples, or
 (respectively milestone), the core features are highlighted. Relevant changes to existing implementations can be found
 in the detailed section referring to by linking pull requests or issues.
 
-## [Unreleased]
+## [unreleased]
 
 ### Overview
 
 *
 
 ### Detailed Changes
 
+*
+
+#### Added
+
+*
+
+#### Changed
+
+*
+
+#### Removed
+
+*
+
+#### Fixed
+
+*
+
+## [milestone-5] - 2022-07-21
+
+### Overview
+
+* Introduction of an event framework + cloud events
+* Full query capabilities for SQL persistence
+* Bugfixing and cleanup
+
+### Detailed Changes
+
 #### Added
 
 * Event Framework for Asset entity (#1453)