iPadOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2020-03-10T17:20:53Z. The update package is 721.39 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ff0f78f193067d61a4880285f5e17812a3e38e49.zip.