viofo firmware version: v2.3_20200328

Hi all, I've just updated my 2018 Viofo A1209 Duo with the Firmware Version: V2.3_20200328, I understand it to be for the older version A129 Duo like mine. I have a couple of questions: #1, What does the Parking Recording Timer do? #2, I updated the firmware because the front camera video...