iPadOS 13.4 (build 17E5255a) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2020-03-10T17:20:53Z. The update package is 75.22 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7b92541f476d90e236147afba31af25d811adf97.zip.