iPadOS 12.2 (build 16E5181f) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2019-01-24T18:05:47Z. The update package is 696.8 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: 0ada37fa61628b288dc02d4d5b376084371eb62c.zip.