Merge branch '3.0' into 3.x

Author: cowtowncoder

release-notes/VERSION

@@ -29,7 +29,7 @@ implementations)
 #629: (ion) Unnecessary `IOException` in `IonObjectMapper` method signatures
  (fix contributed by Michael L)
 
-3.0.3 (not yet released)
+3.0.3 (28-Nov-2025)
 
 - (avro) Upgrade `avro` lib dep to 1.11.5 (from 1.11.4)