iPadOS 12.2 (build 16E5223a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-03-11T17:09:06Z. The update package is 663.07 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 20f5974f5de89e0de31370ec648359e698ca99ce.zip.