Over the past 13 months, our car has had almost every software-related malfunction possible with the car's features. Soft-close door operation has not been among them. I suspect the operation of the soft-close feature has more to do with mechanicals than software. My guess is this update relates to door locking/unlocking which has been a much-more reported complaint on this forum than the soft-close feature.
While we're on the topic of doors, has anyone else had problems with the old-fashioned operation of the doors? When exiting the car, especially in front, I have found it difficult to get the door properly positioned. If I push the door as far as my arm will reach, it catches on the first detent, which is not wide enough for an easy exit. If I push the door harder so that momentum will carry it past the first detent, the door often bounces back from the full open position. It's a real hat trick to push the door just hard enough for it to go past the first detent, then land and hold on the full-open detent. Since my arm isn't long enough to do it toward the center of the door, I have to do it either from the front edge of the door (where it is very hard to modulate the pressure needed) or by pushing the door pocket with my foot (causing me to wonder how long it will hold up under the abuse).
The Air has very wide-opening doors, which would be a great feature if they had stayed with the original plan of having power-operated doors. But now -- and with the very low roof contrails -- reaching out far enough to open and close those doors at full extension is something I find very difficult.