4.3.4 and 5.4.8
- Assist Stance improved and fully replace the old Aggressive stance.
- Assist Stance AI improved, now attack always your current Target! (http://wow.gamepedia.com/Assist)
- Stay command replaced with Move To(and Stay) command on your Pet Action bar.
Commands and Stances(position and order) still can't be moved or removed from Pet Action Bar!