iOS 11.2 (build 15C5107a) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2017-11-13T18:03:54Z. The update package is 203.62 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8fcd82573189a5ff94cb0dc8abb6ab4cfa8fdf5c.zip.