iPadOS 8.4.1 (build 12H321) is an official Apple over-the-air update for the iPad mini (WiFi), released on 2015-09-16T18:02:04Z. The update package is 1.05 GB. This is a delta (partial) update that requires 6.1 already installed. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 30236abc8f4dc8177ec2dc3724015d5476cbf768.zip.