iPadOS 8.4.1 (build 12H321) is an official Apple over-the-air update for the iPad mini (Global), released on 2015-08-13T18:05:07Z. The update package is 852.9 MB. This is a delta (partial) update that requires 7.1.2 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 1017c3fdd69ac3d8a77a63aec8147724820bfb60.zip.