iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-09-12T19:08:45Z. The update package is 1.46 GB. This is a delta (partial) update that requires 11.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a08006bdcfe13b5fdb3146dce3891868a89e2ced.zip.