iPadOS 11.2.2 (build 15C202) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-01-08T18:15:34Z. The update package is 65.93 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c919e7638788b1fb225f2819f35ae9accff8d169.zip.