iPadOS 11.1 (build 15B5078e) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2017-10-09T17:02:13Z. The update package is 124.02 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: 301a7cb766234893c67e309c9e15cf3afde887d3.zip.