iPadOS 8.4.1 (build 12H318) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2015-07-30T18:00:09Z. The update package is 56.74 MB. This is a delta (partial) update that requires 8.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 65d1dd8fc00dd39676b8a38b1ce1e6e6a0c88665.zip.