iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2016-01-19T17:59:01Z. The update package is 811.59 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a240391f9dd924ca2bee0d0693bbaba661ed8dc3.zip.