iPadOS 12.3 (build 16F5139e) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2019-04-22T17:08:07Z. The update package is 370.84 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: 460dd8d8737f54184c429a8e47046533bfb061af.zip.