Some users noticed midi freezing up on their Poly Cinematics when they powered up a connected midi keyboard, this is now fixed in the latest release.
Other fixes include a complete overhaul of the persistent settings system, meaning more reliable recall of preferences after a power cycle.
Finally we've also added a firmware display option, simply turn on Poly Cinematic while holding Shift and Trigger and the firmware number will flash in sequence on the Trigger led. So if you are running version 3.4 you will see 3 flashes followed by a pause then 4 flashes. If you get no flashes then you are running an older version.