iPadOS 12.1 (build 16B5077c) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-10-09T17:05:35Z. The update package is 254.23 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: efecb2a1439aca5775c7f66243d48bd1a8864408.zip.