iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2017-11-09T18:07:58Z. The update package is 163.51 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f9d81bc8e1ae0b95ea2504ae3adf90e56d55caa1.zip.