iPadOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2019-07-09T17:15:48Z. The update package is 99.1 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: cbcb9614661fd0acf7e34f3e4924609e2b898a34.zip.