iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2017-11-09T18:08:58Z. The update package is 50.75 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cc5d7e51c66463d85b5839851dea177477713bd3.zip.