Now you can update your devices to the version of iOS 12. As Apple says in the device should work much faster and responsive. In FaceTime, you can create group conversations, you can create Memoji, added new Animoji, and also downloaded ARKit.
Also, the update Xcode 10.0. and the language of Swift 4.2 about them will be discussed in more detail later.
It remains to wait for the MacOS system update!