iPadOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-05-07T17:03:58Z. The update package is 382.96 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ea98430abcadb5c06c5d2705af76844e383c5203.zip.