iOS 12.0 (build 16A5308e) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2018-06-19T17:04:43Z. The update package is 1.28 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: 494473ea6a40d96f17c184b25bf4b1328ec8ca9f.zip.