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 40.09 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: f06bc56f844a129d74e3de25a2214f5e9ff33b67.zip.