Salthem updated the 2.2 PTR patch notes once again, and below you can find the new changes:

General

* Troll Berserk: The spell haste on this ability was incorrectly too high and has been corrected.

PvP
Arenas

* Arena calculations have been modified. In addition, the penalty for smaller arena teams (2v2, 3v3) has been slightly reduced.
* Players will no longer be able to change armor once an arena battle has begun. Changing armor will still be available during the one-minute prep time prior to the battle. Main hand, off hand and range weapon swapping in combat remains unchanged.

Warlock

* Unstable Affliction: This spell will no longer fail when a Warlock deselects their target midway through the cast.

Dungeons and Raids
Karazhan

* Romulo and Julianne now clear all negative effects on themselves before they come back from "death".

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