iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-09-12T19:08:43Z. The update package is 1.51 GB. 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: 12b349dc08937e655d0d1147e4fc04cf587a0138.zip.