iPadOS 12.4 (build 16G5077a) is an official Apple over-the-air update for the iPad mini 5 (WiFi), released on 2019-07-16T17:38:53Z. The update package is 123.35 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: 258b0d4e4f46c0c8dcfc13ec2bb75b2693a0db08.zip.