iPadOS 8.3 (build 12F69) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2015-04-08T17:56:07Z. The update package is 1.19 GB. This is a delta (partial) update that requires 7.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 37f407a8f42cd66bb692e477362e92b801390ba3.zip.