iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2017-10-23T17:04:53Z. The update package is 162.61 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 16ec1516d4b9dbde5f6f8a53aa257a6447da720c.zip.