There was only one change in the client that was not documented on the FFXIV site.
* Added new GM command "monsterpop." Spawns a monster by actor ID at your position.
The last time they added a GM command, it was "gmbuff" and that was used for the GM that buffed everyone in the camps and in Ul'dah. Expect them to use this for some sort of world event soon.
Edited, Jun 17th 2011 3:47am by Crevox