I installed the update, the biggest changes I've noticed is that there is now a clock in the corner while the SVM (Surround View Monitor) or backup cameras are in use, and the Android Auto album art on the home screen is presented slightly differently.
Phone call wise, can make calls from my address book just fine. I can't dial a number from the head unit with the 0-9 digit pad while the car is in motion. I don't know if this is new or not, I've never tried to dial a number that isn't in my address book, but figured I'd try since people were asking about it.