iPadOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPad Air 3 (WiFi), released on 2019-05-10T17:08:13Z. The update package is 67.46 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: 0724c681e40034b494d7593c9a4ff60df7c7d8e9.zip.