Around a week and a half after releasing iOS 11.2, Apple has pushed out another iOS update.
iOS 11.2.1 is now available for iPhone and iPad users. The update can be downloaded over the air by going to Settings > General > Software Update on your iOS device.
As for what's included in this update, Apple says that it's fixed a bug that could disable remote access to shared users of the Home app. Other unspecified bug fixes are included as well.
It's important to be on the latest version of your mobile software, so iPhone and iPad users should go grab iOS 11.2.1 as soon as possible. Even if you don't use the Home app and don't care about the bug fix, it's good to have the latest bug fixes and security patches that the newest update has to offer.