I got a call from my dealer about a month ago that I needed to bring in my 4S for a software update they said was fairly critical. I asked what was critical about it and they said the vehicle may not go into park, reverse drive in a rare instances. I didn’t grab a screen shot of software version before I took it in. One side effect I have noticed since the upgrade is that my car now responds, and is quick to respond, when I walk up to the car with my key. Before, it was rare that the car would automatically unlock and lift the door handles out. Now, it works flawlessly. Guess there are fixing minor software bugs in the releases. I really should write down the list of bugs and see when they get fixed.