iPadOS 8.4.1 (build 12H321) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2015-08-13T18:05:11Z. The update package is 726.64 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bab38e6e7b9045614435caff5ae1e2d6ee7bee22.zip.