iOS 12.1 (build 16B5084a) is an official Apple over-the-air update for the iPhone 8 Plus (Global), released on 2018-10-15T17:03:18Z. The update package is 584.54 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: 957288e3b00dc7e3d93f00e0c39354c33f7262f4.zip.