iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad Pro 2 (12.9-inch, WiFi), released on 2019-04-22T17:08:17Z. The update package is 381.69 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: bea9442d10bfa225e6b1be60354a0ef74d9cc659.zip.