iPadOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-10-30T17:07:21Z. The update package is 1.37 GB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b3d8318648f62f9e370ec9716ce6d3f034c73dbf.zip.