#1 - Oct. 17, 2011, 6:16 p.m.
Blizzard Post
Today and tomorrow we're going to try and test the remaining bosses in Dragon Soul on 10 player difficulty.

Oct 17
14:30 PDT - Warlord Zon'ozz (10 Player)
16:30 PDT - Hagara (10 Player)

Oct 18
10:15 PDT – Ultraxion (10 Player)
11:45 PDT – Warmaster Blackhorn (10 Player)
14:30 PDT – Spine of Deathwing (10 Player)

There will be additional testing scheduled in the upcoming weeks including 25 player and Heroic difficulties, both in the morning and afternoon. There will not be any testing during Blizzcon.

As always, the scheduling for PTR testing will be VERY fluid. Tests can be announced, canceled, or rescheduled at a moment's notice depending on build and server status, outstanding bugs, etc. I will try to give as much advance notice about tests, but that is not always possible. Also note that these encounters are all works in progress.

[EDIT - Oct 17 15:02 PDT - Removed the Madness of Deathwing from the schedule. We found an issue on the current PTR build that would be a showstopper for that encounter.]