iPadOS 11.3 (build 15E5189f) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, Cellular), released on 2018-02-20T18:06:21Z. The update package is 300.86 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: 7877e855a287121697ae4b7965f9b1667868dbfe.zip.