iPadOS 11.4 (build 15F5071a) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2018-05-07T17:11:14Z. The update package is 223.24 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: 19a051cb110c8c16b920427e52ee66804c5c2cd4.zip.