iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad 3 (CDMA), released on 2016-01-19T17:59:10Z. The update package is 896.7 MB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7996dd6e9d4bfdf3fe910ea9f7b8668c06f1302d.zip.