Apple has released iOS 12.1.1, delivering an unusually large number of new features for a 0.0.1 update.
Out in beta for the past month, iOS 12.1.1 expands dual SIM support with eSIM to additional carriers on the 2018 iPhone models, makes several improvements to the UI for FaceTime, including bringing back Live Photo capture during FaceTime calls, allows iPhone XR users to preview notifications using haptic touch, adds RTT support for Wi-Fi calling on iPad and iPod touch devices, and fixes a number of bugs regarding VoiceOver, Face ID, visual voicemail, Chinese and Japanese keyboards, and time zones.
The release also adds support for the HomePod in Mainland China and Hong Kong and will now illuminate LEDs on the HomePod during Group FaceTime calls.