iPadOS 8.4 (build 12H4086d) is an official Apple over-the-air update for the iPad 2 (WiFi), released on 2015-04-27T17:47:02Z. The update package is 50.01 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: ba1b00875194d82c2345cf2e4fb7a12005f51c1c.zip.