iPadOS 11.1 (build 15B5086a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2017-10-16T17:04:08Z. The update package is 100.93 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: c5cb33672c4756f24f5687253f3cb6e2a4713b09.zip.