iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2017-11-09T18:08:09Z. The update package is 1.06 GB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 858526e234e610845a33969e2ec2217e19b641fe.zip.