iPadOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-05-10T17:08:47Z. The update package is 47.2 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: cc7198341added9fe775f9d1b8099447d50e7bb4.zip.