iPadOS 9.9.10.3 (build 14E277) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2017-03-27T16:57:28Z. The update package is 1.23 GB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bc8d780cf720d8c97a55b9ea6172d7a90f9fa13a.zip.