iPadOS 9.3 (build 13E237) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2016-03-28T16:51:32Z. The update package is 284.22 MB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e8bfde070b55ef0c4517f2f7acbbd30d9d8b44bd.zip.