The update contains few improvements and a fix related to the Homekit remote access for shared users.
According to iDrop News, the iOS 11.2 glitch allows users to remove the iMessage app linked to Apple Pay Cash. The flaw gave users unauthorised access to smart home accessories such as locks, garage and more in some situations.
Additionally, Apple has pushed tvOS 11.2.1 update for the Apple TV to address the same HomeKit vulnerability. Apple was forced to rectify the issue by disseminating iOS 11.2 about a week early in order to kill the bug.
Google Assistant now on tablets and older pre-Marshmallow Android smartphones
Fortunately, Google has set out to fix this by pushing out an update containing Assistant to users running Android 5.0 Lollipop. Once exclusive to Google's Pixel phones, Assistant launched earlier this year on Android devices but tablets were left out.
Once iOS 11.2.1 is shown as an available update, tap "Download and Install" and follow the on-screen instructions. These seem to be routine bugfixes though the Apple HomePod 11.2.5 beta has also been spotted - the speaker won't be available till next year. Users should back up data before downloading the update. If anyone is keeping count, this is the eight update to hit users following the global rollout of iOS 11 a couple of months ago.
It has been mentioned that those devices on beta versions may need to be removed from their beta profiles and be rebooted to see the fix.
Notably, Apple released the major software update iOS 11.2 last week for eligible iPhone, iPad and iPod users. It doesn't seem that Apple made a decision to include with its latest update, a fix for the glitch that prevents an iPhone user with Apple Pay Cash to reinstall the feature after deleting it from his or her phone.