iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2017-11-09T18:08:11Z. The update package is 39.79 MB. 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: 64d4e065972b9e02768a529f6408adc4520d9b52.zip.