iOS 12.0 (build 16A366) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-09-12T19:08:56Z. The update package is 1.6 GB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 44ce8ec914737ae780923d75622a32d9643430d7.zip.