"I loaded V3.0 to my APM2 which is on a Tricopter
The controller won't pass yaw commands from the TX. It does send commands to maintain the current heading [but not a user input from channel 4] so the servo is working OK.
 -The radio has been…"

"Hi,
 I flew my first 2 missions with my Tricopter today and all went well.
I can't believe how smoothly the setup and tuning is going. AC 2.6 really does the job. 
 If I use Loiter Turns in the MP does it simply rotate on it's axis or does it circle…"

"I finally have my Tricopter set up and flying nicely. My yaw is pretty good except for a tiny slow wag at neutral. It’s only noticeable when hovering and looking directly at the tail. I’m going to try next week to get rid of it.
 
Acro, stable,…"

"Hi,
  I’m  setting up my APM2 with V2.6 software on a Tricopter V2.5 with DT750 motors, 9x5 2 blade props, 20 AMP Hobby King Blue series ESCs and a 3cell lipo  .  I have the yaw pretty much sorted out and it  flies well in Acro and attitude modes on…"