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 521.09 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03629c51b9b45edb13a7380245aa86c071246d7c.zip.