One additional point.........make sure you have a controller that supports AOS 6.x. The "legacy" controllers (200, 800, 2400, SC1, and SC3) only support up to AOS 5.x.
The current controllers (6x0,3x00,M3, and 72x0) support all current releases. The 6x0 series, however, do not gain some of the same functionality as the larger, more powerful controllers such as AppRF and AirGroup. The complete list is in the Release Notes.