Index: branches/5.2.x/core/install/upgrades.sql
===================================================================
diff -u -N -r15437 -r15458
--- branches/5.2.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 15437)
+++ branches/5.2.x/core/install/upgrades.sql	(.../upgrades.sql)	(revision 15458)
@@ -2786,3 +2786,7 @@
 UPDATE SystemSettings
 SET DisplayOrder = DisplayOrder - 0.01
 WHERE ModuleOwner = 'In-Portal' AND Section = 'in-portal:configure_advanced' AND DisplayOrder > 40.02 AND DisplayOrder < 50;
+
+UPDATE SystemSettings
+SET VariableValue = 1
+WHERE VariableName = 'UseOutputCompression';