iPadOS 12.4 (build 16G5077a) is an official Apple over-the-air update for the iPad 6 (WiFi), released on 2019-07-16T17:39:16Z. The update package is 143.19 MB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7f89a4ef53452e933ee166062695a1e2a3ef1b8e.zip.