iPadOS 11.4 (build 15F5049c) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-04-16T17:08:00Z. The update package is 198.84 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: 780f66f7b2f43c930b1d458e359712e82e515332.zip.