iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2017-10-23T17:04:57Z. The update package is 1021.85 MB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 11186b611b4cf62ce7199435e339115d7a84e9db.zip.