iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-12-05T18:09:20Z. The update package is 1.38 GB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7f053e1553e646fd5fc8fabe284a1b643bde8487.zip.