iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad 2 (Mid 2012), released on 2016-01-19T17:59:02Z. The update package is 26.36 MB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4c05f199204b173c5f06bca8c3ed94c6e70836af.zip.