DOC: update CHANGELOG

CHANGELOG.md

@@ -47,6 +47,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed ###
 
+* #23 Incompatibility with MariaDB 10.3
 * Fixed the `>=` and `<=` operators for comparisons in POV query filters with
   stored DATE values. The fix makes the implementation consistent
   However, the current definition and implementation of the