iPadOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi, 1TB Model), released on 2019-05-07T17:04:05Z. The update package is 469.42 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: d3a5ee1b3fca033540b185feccc76de0e146937d.zip.