iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2017-10-23T17:06:03Z. The update package is 41.59 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: 3913a295ed9a0588d6e349b71adc773f81a6d431.zip.