iPadOS 12.4 (build 16G5027i) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2019-05-20T17:06:38Z. The update package is 202.62 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: 002298be4d24918ca6a53a26bf769e3286618459.zip.