It’s just bug fixes. 16.2 and 16.3 was buggy. Homelink was broken at times and can’t open or close the garage even manually using it from the UI.
Also, EAP wasn’t reliable when lines are lost for a few seconds. EAP will freak out and shake the car. Was always fine on older firmwares.
I didn’t get 16.3.2 yet but I hope it fixes these issues.
Reboot by holding down both wheel buttons - Homelink will come back.