iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 4 (Global), released on 2016-03-28T16:51:21Z. The update package is 964.55 MB. This is a delta (partial) update that requires 8.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e2502ef6fa2f6be15e8a0ca5e9518b4fd9051bfd.zip.