Update CHANGELOG.md

Chris Wiechmann · Chris Wiechmann · commit dcc2788447eb · 2021-12-16T09:53:36.000+01:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ## [4.0.1] 2021-12-16
 ### Changed
 - Updated default Elastic-Stack version from 7.15.1 to 7.16.1
+- Dropped support for K8S 1.18
 
 ## [4.0.0] 2021-12-07
 ### Added
