iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2017-10-23T17:04:58Z. The update package is 162.66 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 125ba545245d95507cdd48f29be0606bd57751c3.zip.