It was like a 1-line code update for other - "delivery photo" that was made to reduce button presses except it increases button presses.
scan, residential, back, apt, 1, 3, 2, locker, back, stop complete. now just multiply that 15 times and you have 150 button presses without a built in hardware input stack like the diad 5.
The device is now officially unusable with a helper. It was already getting to be a real PITA last year.