https://www.theverge.com/2018/12/5/18127536/apple-ios-12-1-1-update-facetime

Apple’s iOS 12.1.1 update is now available to download, and it comes with some new improvements and fixes for some controversial iOS 12 changes. Most notably, FaceTime — which faced a lot of criticism from users for removing features like the ability to take Live Photos during calls, and making the ‘flip camera’ button harder to find behind a menu — has been tweaked. The button has returned to the main screen, on the bottom menu row alongside the Mute, Effects, and End Call button.

Other big features include dual SIM with eSIM support for additional carriers on iPhone XR, iPhone XS, and iPhone XS Max, and a notification preview using haptic touch on iPhone XR. Bugs like issues with visual voicemail downloading, Face ID being temporarily unavailable, and broken predictive text suggestions on Chinese and Japanese keyboards have also been fixed.