Apple released a brand new iOS 11 update for the iPad and iPhone this morning that makes some big fixes to HomeKit.
iOS 11.2.1 comes a little over a week after Apple dropped iOS 11.2 on the public bringing Apple Pay Cash and a host of bug fixes. The new update is being released along with tvOS 11.2.1 to restore some HomeKit functionality after Apple patched a bug server-side earlier this week.
To download iOS 11.2.1, open the Settings app on your iPhone or iPad and go to General >> Software Update to download and install it over the air. You can also install it via iTunes if you like doing things the old school way.
iOS 11.2.1 and tvOS 11.2.1 both re-enable remote access for shared users of the Home app. Apple broke the functionality temporarily after a bug was discovered in HomeKit that allowed attackers to gain full-access to HomeKit connected smart appliances like locks and garage doors.
With today’s update, the HomeKit security flaw is fully patched and all other features have been restored.