iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2017-11-09T18:07:43Z. The update package is 1022.87 MB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2a6b295d899a6bff800d85c78440c0606cf78cbf.zip.