iPadOS 11.4 (build 15F5049c) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-04-16T17:07:50Z. The update package is 216.29 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b74d0e4ea745ff4ec0dd6c1a029a3021184a85a8.zip.