This means that if you are having some software problems with your device, there is a chance that it could have been addressed in the update. Some of the bigger changes that is part of the update includes the new TV app (announced a couple of months ago) which is only available for iOS users in the US at the moment.
The app will let users get recommendations on new movies and TV shows to watch, and access the Library for your video purchases/rentals made on iTunes. The iOS 10.2 update will also add a bunch of new emojis, such as new faces, food, animals, and more. Apple has also updated the Messages app with full screen effects.
The Music app in iOS 10.2 has also been updated where improvements have been made to its UI where access Shuffle, Repeat, and Up Next are easier to access. The update weighs in a little over 300 MB so you’ll want to make sure you have enough battery and a good connection if you want to download the update.