US HTC U11 gets big new update, changelog mysteriously missing
As you can see, the only two changes mentioned are the inclusion of the Android Security patch for the month of December and unspecified system enhancements. We do suspect that there could be more to this update, so if you notice any changes after installation, feel free to mention them in the comments section.
The update is available OTA, but it might need some time to reach all compatible devices. As always, make sure that your phone is sufficiently charged and connected to a Wi-Fi network before proceeding with a patch of this size.
via GSMArena
FCC OKs Cingular\'s purchase of AT&T Wireless
Things that are NOT allowed: