iPadOS 9.2.1 (build 13D14) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2016-01-04T17:58:46Z. The update package is 31.08 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b1b3c27217deacbc06d6452b5f89d0d5086f4a12.zip.