iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-12-05T18:09:32Z. The update package is 1.36 GB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 994f8d8b7b8adb6078708e424edffd032bcea896.zip.