iOS 12.1 (build 16B93) is an official Apple over-the-air update for the iPhone XR, released on 2018-10-30T17:18:59Z. The update package is 442.86 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: ca818ab67ee3006f3dc12099623a8050a1e08cc7.zip.