iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2018-12-17T21:05:51Z. The update package is 1.48 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: ca7aaad92b918bb32c673869edaceac90b3cc9dd.zip.