iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2017-11-09T18:08:21Z. The update package is 1.12 GB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 94c621a57dcdcc3abe027ab7b9f549e97dc0a505.zip.