iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad 4 (GSM), released on 2016-03-28T16:51:12Z. The update package is 967.53 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: 367dc0b7105bf04b467d22d9ab942192373a2ee5.zip.