iPadOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPad 6 (WiFi), released on 2019-07-09T17:16:06Z. The update package is 117.12 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: 52c9d71efb8cf3171bcb830b6b583ef2e0fb204e.zip.