iOS 12.1.1 (build 16C5043b) is an official Apple over-the-air update for the iPhone XS, released on 2018-11-07T21:08:57Z. The update package is 381.04 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0defbae4e1aa145d0279a6cf705fa813432318fe.zip.