iPadOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2016-03-21T18:56:05Z. The update package is 1.15 GB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7e116744bcb69045f9ceccecc50d9c9084026686.zip.