iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2017-10-23T17:04:52Z. The update package is 163.16 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: 775417cde77801430e7b3b440cd54afc44ef0cc2.zip.