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 900.47 MB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 13f1a84b1c433d52f392a0ac507feab9b079164c.zip.