iPadOS 13.4 (build 17E5223h) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2020-02-05T18:16:52Z. The update package is 704.85 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: dab1025701a4e2b413c5c7ea4446e8057be24516.zip.