iPadOS 12.3 (build 16F5129d) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2019-04-08T17:04:14Z. The update package is 294.4 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: 0e81d0e7959cb8e256daf2d93b5e9e99d3016b10.zip.