In order to provide you the most polished and quality content, we have created a new dedicated realm to test future content without impacting the live realm performance.
Next Sunday (2016/03/27), the second part of Ahn Qiraj content (ie the AQ40) will be released on the PTR at 20:00 server time.

The following need to be reviewed:
* Spells,
* Exploits,
* Behaviours,
* Mechanics,
* Events,
* Creature position,
* Texts (if any).
Every player will have access to the PTR, with an instant level 60 character and access to all the equipment needed to fight, even if you got no arms left. AQ20 will stay available few more days since there is also some remaining work to be done. PTR will have a progressive release of each bosses.
We expect reports from each guild participating and we want these reports to be as comprehensive as possible. On our Bug Tracker, a dedicated tag has been added: "Patch 1.9".
Note that it is mandatory to back your reports with official links and sources to assure that the issue is valid. If the reports are not complete e.g. lacking content or sources, it will be stated as "Invalid" without further notice. Reports will only be accepted on the Bug Tracker - do not bother creating a ticket or a forum thread as it will not be reviewed.
Feel free to share your experience on the PTR with everyone through streams, videos, etc. Do not be afraid to make it public!
Our Twitter feed will be used to give some update status during the fix week, follow us to keep yourself updated!
Best regards,
Nostalrius