iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2018-05-29T17:14:43Z. The update package is 630.68 MB. This is a delta (partial) update that requires 11.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6ed93c10368e23518de22220e4ffea513c419769.zip.