iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2016-01-19T17:58:56Z. The update package is 811.56 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: 7bf9ab8d270498e88fd6ec25d20d911cae38cc2e.zip.