iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-09-12T19:08:57Z. The update package is 1.6 GB. This is a delta (partial) update that requires 11.2.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c83d29be98a722775a9b50ca42f15bb19d37c0ba.zip.