iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2019-04-22T17:08:18Z. The update package is 287.26 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: db2dc2c1796743924a0604e16eb9677acf106fb1.zip.