iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2017-11-09T18:08:42Z. The update package is 198.12 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 724efdf911b7dbeaf858e41f5ca3ff27567f6120.zip.