iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-10-30T17:07:10Z. The update package is 1.3 GB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9b079551452f0a1f5478108881889732b9beeed3.zip.