iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad 3 (GSM), released on 2016-01-19T17:59:11Z. The update package is 980.01 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a4d9c793036322af43ca5bc5c00900e052d9387d.zip.