iOS 12.0 (build 16A5345f) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-08-06T17:06:24Z. The update package is 1.34 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 41d1b9ba1119b2281f811fe1eb1c3b939267c61d.zip.