iPadOS 8.3 (build 12F69) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2015-04-08T17:56:08Z. The update package is 366.17 MB. This is a delta (partial) update that requires 8.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8de0f8146ddc0c811e8f913c5d97e63d6cb1de14.zip.