iPadOS 13.4 (build 17E5241d) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2020-02-26T18:17:18Z. The update package is 721.12 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: 370d14c0ee746d3e5b0dd0b7d4516d4c85dcd540.zip.