iPadOS 11.4 (build 15F5061d) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2018-05-01T17:06:00Z. The update package is 188.9 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: 7075afcb69cbfc3e6286bae117c574161a7d8e30.zip.