Change Userdata to use String username instead of integer userId

Change-Id: I792450fecb33e91cc5dd58e6ab5cf1dde12ba5bf
diff --git a/Changes b/Changes
index 26308d1..6739ef1 100644
--- a/Changes
+++ b/Changes
@@ -3,6 +3,7 @@
 - Reactivate Query Serializer Web-service (#903)
 - Fix deprecated URL constructor (AI assisted)
 - Fix Jackson and serialization deprecated methods (AI assisted)
+- Change Userdata to use String username instead of integer userId
 
 # version 1.1