iPadOS 10.3 (build 14E5269a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2017-03-08T17:59:32Z. The update package is 364.11 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6ba49785f0321fb1410a08888f7fdafccfc793f1.zip.