iPadOS 9.9.10.2.1 (build 14D15) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2016-12-20T18:02:29Z. The update package is 1.66 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4b9e278a2ecc60fc8621f9972a8c94c1b19397ab.zip.