Index: branches/5.2.x/core/install/upgrades.sql
===================================================================
diff -u -N -r15458 -r15461
--- branches/5.2.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 15458)
+++ branches/5.2.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 15461)
@@ -2790,3 +2790,6 @@
 UPDATE SystemSettings
 SET VariableValue = 1
 WHERE VariableName = 'UseOutputCompression';
+
+ALTER TABLE EmailQueue CHANGE LogData LogData LONGTEXT NULL DEFAULT NULL;
+DELETE FROM UserPersistentSessionData WHERE VariableName = 'mailing-list[Default]columns_.';