iPadOS 8.3 (build 12F69) is an official Apple over-the-air update for the iPad Air (China), released on 2015-04-08T17:56:08Z. The update package is 739.18 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3ba80147e21f95e667e5fa1f384bc43a04c4943e.zip.