iPadOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2015-03-09T18:49:03Z. The update package is 1.19 GB. This is a delta (partial) update that requires 7.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c4f15cde52c62f29ff1f024d3d4e9770d2f454d2.zip.