iPadOS 9.2 (build 13C75) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2015-12-08T18:03:58Z. The update package is 314 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: eaea9ba2fe72fa080083c23cf7a56194eac8608b.zip.