Mine

Index: AuthCodes.h
===================================================================
--- AuthCodes.h	(revision 5833)
+++ AuthCodes.h	(working copy)
@@ -68,6 +68,6 @@
 // others will not and opposite
 // will only support WoW and WoW:TBC 2.4.1 client build 8125...
 
-#define EXPECTED_MANGOS_CLIENT_BUILD        {8125, 0}
+#define EXPECTED_MANGOS_CLIENT_BUILD        {8278, 0}
 
 #endif