iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-04-22T17:08:22Z. The update package is 287.19 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cf849d1e151f223eb114337e0319b7aa532e5412.zip.