iPadOS 11.2.1 (build 15C153) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2017-12-13T18:10:28Z. The update package is 345.43 MB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2e8b3422f79af274a0c373a64a357d9334444e77.zip.