iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-09-12T19:08:40Z. The update package is 1.6 GB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 53b6d9085c38ec622810c6473f479ff2cf1ece6e.zip.