iPadOS 12.3 (build 16F5148a) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-04-29T17:35:36Z. The update package is 371.83 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: df27f99284c2f2152dc212de70200d35396bbeb6.zip.