iOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-10-30T17:17:31Z. The update package is 1.48 GB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ee30a2e3603441a5bdd6f93ce076a35b1573c337.zip.