iPadOS 9.3.3 (build 13G21) is an official Apple over-the-air update for the iPad 4 (WiFi), released on 2016-06-06T16:46:39Z. The update package is 29.57 MB. This is a delta (partial) update that requires 9.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 91e0bf626ead8d04a6d94bd5e5edd0f605d495de.zip.