I was not able to find any discussion of the DMP since it was released .
So I gave it a try with the latest fixes from the Git trunk. since it turned out 2.7.4 Beta from downloads had a bug with DMP init freezing.
On setup their is a slight offset in the Pitch that can not be corrected with calibration.
Flying it seems to do some calibration on powerup and be off ballance if not level when powered .
After takeoff all seems well for a while but more pitch was required to keep it in the same position with no wind untill quit a bit of forward pitch was needed and on releasing the stick it would fly backward quite fast.
"DMP works again by adding "#define DMP_ENABLED ENABLED``
I think `` works` is not a accurate description of the DMP at this point. I have to say I am a little puzzled at all the posts and hand wringing when the code was not being released, and not a peep about it since it has been released.
I do appreciate the work of the developers and like the Arducopter project but find information lacking sometimes.