iPadOS 11.4 (build 15F5079a) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2018-05-17T17:02:06Z. The update package is 37.94 MB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: da35ab2e801f05b5c66a34b1e27fed4ab6e1d999.zip.