We’re not sure if the update will fix every bug that iOS users have been experiencing, but hopefully it will fix some of them, so like we said if you are experiencing any problems with your iPhone, iPad, or iPod, then maybe updating it will resolve some of those issues. Note that major changes and new features aren’t part of iOS 10.2.1.
Instead those are expected to be introduced in iOS 10.3 which has yet to be released to developers. According to an earlier rumor, it seems that iOS 10.3 will be introducing some new features, one of which is “Theater Mode” that basically gives iOS a dark theme makeover. We’re not sure what else it will come with but that is one of the more highly-anticipated features.
In any case iOS 10.2.1 should already be available for download on your iOS device so head on over to your phone’s settings and check the software update section to get your hands on it. Alternatively you can just wait and Apple should prompt you to download it.