iPadOS 11.3 (build 15E5211a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2018-03-12T17:05:34Z. The update package is 206.82 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: 3c9cdbb1b2c5fb8c28326110d1a4cbb2b6b137ef.zip.