iPadOS 8.2 (build 12D508) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2015-03-09T18:49:04Z. The update package is 392.16 MB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f796cadfeecb3441fa14152b7800e80f74905f11.zip.