iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2017-11-09T18:07:46Z. The update package is 162.72 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: 27fa580822c47617273fff97e427688e541ec994.zip.