iPadOS 11.3 (build 15E5216a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-03-16T17:05:11Z. The update package is 53.02 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: 4a00becd100c0da498e0df56758ebe1de2fc5c29.zip.