iPadOS 10.3 (build 14E5269a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2017-03-08T17:59:29Z. The update package is 364.1 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: 2b343ea5523b1a7376cc02aa126fad9232b75065.zip.