--- a/plugins/muc/muc.lib.lua	Thu Mar 12 16:01:31 2020 +0000
+++ b/plugins/muc/muc.lib.lua	Thu Mar 12 16:10:44 2020 +0000
@@ -1536,7 +1536,7 @@
 	}, room_mt);
 end
 
-local new_format = module:get_option_boolean("new_muc_storage_format", false);
+local new_format = module:get_option_boolean("new_muc_storage_format", true);
 
 function room_mt:freeze(live)
 	local frozen, state;