iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2017-10-23T17:05:57Z. The update package is 308.2 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 674880a7b18c8e99a7dc60a887c1992edc85161f.zip.