iPadOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2016-03-21T18:56:10Z. The update package is 271.93 MB. 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: ec0c7d9840492643de794cfc53e1a360fe432496.zip.