iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2017-11-09T18:08:26Z. The update package is 163.76 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: 6143bbb5596a5084524c5874fbeba4cffc87cdd4.zip.