Wish they had. I've got lags, jumpy screen, poor battery, and bad voice calls now.
Worst is the voice calls. People can't hear me well now, they say it sounds like im talking under water. They actually say the Bluetooth in my truck is way better where they used to complain about that. So there's the good news.
When I am texting it wants to freeze up frequently. If it's a group text... Forget about it.