After being the first carrier to deliver KitKat on the Moto X, Verizon is now following up with OTA updates for its own line of exclusive Motorola devices. Starting today, DROID MAXX, Mini, and Ultra owners will start to see the latest version of Android arrive on their devices. According to a tweet sent out just now, this update will be going out in waves.
— Verizon Wireless (@VZWnews) December 19, 2013
Verizon has already posted support documentation of what to expect.