iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-10-30T17:06:52Z. The update package is 1.68 GB. This is a delta (partial) update that requires 10.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 094251705cb3b0810162c05990e30e1b43903a7a.zip.