iPadOS 12.1 (build 16B5077c) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-10-09T17:05:37Z. The update package is 254.29 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 236c687c306852ac20a4cb872b60fbb36c9e7d4f.zip.