Dev alpha B V.S A

I've upgraded the devalpha (A) with the latest OS build.
Yes, I'm amazed and yes, I know it's a dev device (using it accordingly) and still beta OS.

I've experienced a few system hangs while using the camera (in time-shift mode) and I wonder if the "B" device has same behavior. Overall, does it brings better stability or is it identical to "A" device ?