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Use shift key. Thanks.
the way i understand it is they're updating all level 70 epics, starting from the ground/easiest to obtain up. heroic badge epics, heroic dungeon epics, karazhan, then t4, mag/gruul, then ssc/tk, then hyjal, then BT (t6). it seems they're going to be doing all that, and even the items they've just recently even created (t6 stuff), will be changed