iOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPhone 8 Plus (Global), released on 2018-12-05T18:09:51Z. The update package is 525.57 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 257ba1ebfb689dc65a529e5a81b5b84c064942ff.zip.