iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2017-11-09T18:08:35Z. The update package is 163.14 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1ba937621f86ecbff254fa145045041dffe8ab5a.zip.