Index: branches/5.2.x/core/install/upgrades.sql
===================================================================
diff -u -N -r16468 -r16537
--- branches/5.2.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 16468)
+++ branches/5.2.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 16537)
@@ -2935,3 +2935,7 @@
 
 UPDATE SystemSettings SET VariableValue = 1 WHERE VariableName = 'CSVExportEncoding';
 ALTER TABLE Semaphores ADD MainIDs INT NULL DEFAULT NULL AFTER MainPrefix;
+
+UPDATE Modules
+SET ClassNamespace = 'InPortal\\Core'
+WHERE `Name` IN ('Core', 'In-Portal');