iPadOS 8.4.1 (build 12H321) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2015-08-13T18:05:10Z. The update package is 721.69 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a33f8e3187c3210471737aba5576c12be1a78d0d.zip.