iPadOS 12.2 (build 16E5227a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi, 1TB Model), released on 2019-03-18T17:06:46Z. The update package is 784.97 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: 135f85a57340783f5ff1f9eabfe4d4d12a3cdc4d.zip.