iPadOS 11.4 (build 15F5061d) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-05-01T17:05:53Z. The update package is 173.57 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: 0a9716d2198a10a4b66bdef1c53c5a6a09688d4b.zip.