Dungeons which have only one difficulty setting will automatically change the difficulty to match their setting. IE, you can enter an old world instance such as Wailing Caverns with it set to 5 Player (Heroic), and upon entering, the setting will be set to 5 Player.
[80 Daily] Battle Before The Citadel,and probably the pre-Champion equivalents, too, do not provide an [Argent Lance] upon accepting the quest anymore, however, you can get the lance from racks at the Argent Camp in front of the Citadel, or within the Trial of the Champion 5-man dungeon before the jousting event is started.
Wands now suffer a short cooldown equal to the speed of the wand after any spell.
Wands which shoot fire (such as [Firestarter]) now have a different cast sound.
[Bear Form] has new animations for Fishing; Bear and [Cat Form] have a new animations for eating. Neither of these animations seem to be used by this behavior however.
Player mounts and Champion Daily NPCs have shifted position near the Champions jousting field.
It is no longer possible for an unmounted player to tank another player's champion or valiant during jousting dailies in the Argent Tournament. The defending Jouster will say "I see that you are not ready for mounted combat." and despawn.
The debuffs for defeating Champions in the Champions Ring has decreased from one hour to five minutes.
Zeppelin towers now have decorations that indicate the destination for the zeppelin to aid in choosing the right flight. In addition, the titles of zeppelin masters now clearly state to what zone the corresponding zeppelin flies to, e.g. "Howling Fjord Zeppelin Master".
General Vezax's HP has been nerfed significantly, and now only six Saronite Vapors spawn. The Saronite Animus will spawn after the sixth vapor if none are destroyed.
Salvaged Demolishers now have greater vertical traverse for their anti-air missiles, possibly up to 90 degrees (up from perhaps 75 degrees from horizontal).
Arachnopod Destroyers have a lower range for Charged Leap, so the trash mobs leading to Mimiron can no longer be bypassed.
Macros
/userandom and /castrandom no longer choose a new spell if the spell it previously chose failed to cast. Instead, it will continue to attempt to cast the spell that failed until it successfully casts before choosing a new spell. [5]