iPadOS 10.3 (build 14E5273a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2017-03-13T17:01:22Z. The update package is 367.81 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: 503e6ad026af5f26d7b0bc6a08f1ec7c180e1f3a.zip.