iPadOS 8.2 (build 12D5452a) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2014-12-18T17:46:25Z. The update package is 63.15 MB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5ecd48430353b70c500bfe55e82bf46e6a037aec.zip.