Patch 4.0.3 (undocumented changes)

This article lists all undocumented changes for patch 4.0.3. All documented changes should be listed on the main article.
==Game Engine==
* Cinematics are now downloaded through the streaming client, making them available to users with digital downloads.
==PvP==
* Wintergrasp now utilizes a population balancing system of a 1:1 ratio. Because of this, Tenacity should no longer apply to players during the battle.http://us.battle.net/wow/en/forum/topic/1062166272
* When queuing for a battleground as a group and a player is unable to join the queue, an error message tells you specifically the name of that player.
==User Interface==
* Sound Channels in the Sound & Voice menu is now a drop-down menu rather than a slider.
* The API UnitDetailedThreatSituation returns 0 threat for effects like Mirror Image or Fade instead of the real threat value.
* Cold Weather Flying and Flight Master's License now display in the spellbook, along with at which level they are learned. (Flight Master's License isn't learnable without the Cataclysm expansion.)
==Bug fixes==
* Fixed Real ID names spelling in friend list in russian localization (names in edit box remains bugged)
* Fixed display item tooltip issue (PvP items are no longer displayed as requiring Arena Team Rating if they don't)
* Ghost Gryphons fly with full speed once again.
* Rewards for completing normal and Heroic Wrath of the Lich King dungeons are properly displayed:
** 12 Justice Points for a Random Lich King Dungeon
** 23 Justice Points for a Random Lich King Heroic
* Frost mages can no longer rename their summoned water elementals.
* The loot chests in Trial of the Champion now have proper collision models.
* Tauren Miners get the same XP from Mining as other races. Previously they got less or no XP, compared to others.
==References==
4.0.3 (undocumented changes)