iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-10-30T17:07:18Z. The update package is 1.8 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 89ad19b860fe92a7fe1dec2f47e84d237a2d8dfe.zip.