https://www.cnet.com/news/ios-12-1-with-group-facetime-new-emoji-dual-sim-hits-iphones-tuesday/

iPhone XS, XS Max and XR users will be able to use dual SIMs after downloading iOS 12.1. And Apple will bring "advanced depth segmentation" in Portrait mode that lets you adjust the bokeh more. You can adjust the depth of field in a real-time preview as well as after you take a shot, giving you more control over the background blur. 

Apple's iOS 12.1 brings Group FaceTime video chats to iPhones and iPads.