iPadOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2019-05-10T17:08:14Z. The update package is 44.94 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: 62427cd8eb97ad9b162f21b71ca7e753581cdc96.zip.