iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-09-12T19:08:46Z. The update package is 1.43 GB. This is a delta (partial) update that requires 11.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2a7a53affcf1d0a050e1c66837f6e2cc0fd3d395.zip.