Today Apple released iOS 11.0.3 for iPhone, iPad, and iPod Touch, the third update for iOS 11 in as many weeks. This update fixes some problems including the haptic engine not working properly on some iPhone 7 and 7 Plus devices, as well as with third-party displays on iPhone 6s. There may be other fixes, but as always Apple rarely goes into every detail on updates.
If you are running iOS 11 already you should go ahead and update. If you are not running iOS 11 you may wish to go ahead and update if the new features sound useful, but you may want to wait a few more weeks if reliability is more important. In general I’m a huge fan of the new features and the direction iOS is headed, but I think that Apple released iOS 11 a few weeks too early.
Those that do have problems often find that a later update fixes it, or that their problem is solved by an erase and restore or an erase and setting it up as a new device. As of yet the most widespread iOS 11 complaints are with battery life, though that’s not very different from earlier iOS version. Most people don’t have more than minor battery drain after the first few days of use, and those that do often get big improvements from later updates.
To install the update go to the Settings app > General > Software Update.