iPadOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2016-01-19T17:59:28Z. The update package is 35.02 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: a61d35f4b9e16fa32a28e37d52e0aed34fd1fd4b.zip.