iPadOS 8.4 (build 12H4086d) is an official Apple over-the-air update for the iPad 2 (CDMA), released on 2015-04-27T17:47:03Z. The update package is 50.25 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: 6ce28f937d12949f879d10b116f0e8b158a26737.zip.