I am working on auto piloting of my quadcopter. i want to use ardupilot flight controller board. on http://ardupilot.org stated :APM 2.6 - no longer supported for Copter or Plane. The last firmware builds that fit on this board are Copter 3.2.1 and Plane 3.3.0. but on arducopter site they are saying its support. i am confused. so what should i do?? Is APM 2.8 are supported ?? what else solution?