iPadOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2020-01-22T18:07:04Z. The update package is 159.74 MB. This is a delta (partial) update that requires 13.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7fbc2b32a85440d6e65105d75e153e1f1e9d2992.zip.