iPadOS 8.4 (build 12H143) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2015-06-30T15:51:15Z. The update package is 1.45 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6f0e206cc4671535dc3146a3610a8de293d7bb9d.zip.