iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-12-05T18:08:50Z. The update package is 1.59 GB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d62ed9e3f1d337e2f7549a170346e0066fd00eb1.zip.