iPadOS 11.1 (build 15B5086a) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2017-10-16T17:04:09Z. The update package is 108.69 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: 49d6779e2e878e07de67b571463be0f3b7fdaea0.zip.