iPadOS 8.4 (build 12H4125a) is an official Apple over-the-air update for the iPad mini (Global), released on 2015-06-09T17:53:02Z. The update package is 133.14 MB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3ac203d375351c03d417a7804438633698029153.zip.