iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2016-03-28T16:51:03Z. The update package is 950.64 MB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: deb88843d670ba92f44f2392365dce1d4342a381.zip.