On top of the big bump to 7.1.1, Mini owners will find all of the new Android emoji, updated Doze settings, support for T-Mobile WiFi Calling, multi-window hotness, plus revamped notifications. Believe me, Mini owners, you want this update.
In order to install it, make sure your phone is over 30% charged, head into Settings, then go to System Update. Your download will begin and should then automatically start the updating process.
Have at it!