iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2018-12-17T21:05:50Z. The update package is 1.53 GB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 77efd39919d418311de554b41c6a618aaa1f2613.zip.