iPadOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2018-12-05T18:08:47Z. The update package is 372.49 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 23744502f0198cc93aa6051a4fddb83380436261.zip.