Release 5.2.3

Author: andersfugmann

Changelog

@@ -9,7 +9,7 @@ Changes marked with '*' indicates a changes that breaks backward compatibility
 - [ ] Add namespaces to attributes
 - [ ] Unify xmlm and xml_light driver to share codebase
 
-## 5.2.3 (unreleased)
+## 5.2.3
 - [x] Compatibility against ppxlib 0.36.0
 
 ## 5.2.2