iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2017-10-23T17:05:26Z. The update package is 1.11 GB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 53dda1f60a457a2512a1156f7e708c899f885591.zip.