iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-12-05T18:09:34Z. The update package is 1.31 GB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 65b7f99f7e8f98488383598132cb7f95f984c9e6.zip.