iPadOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPad 5 (WiFi), released on 2019-07-09T17:15:51Z. The update package is 290.43 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: 028aef60ed5c1b52c65d9459314936dfce963579.zip.