iPadOS 8.4 (build 12H5143) is an official Apple over-the-air update for the iPad 2 (GSM), released on 2015-06-30T15:51:01Z. The update package is 1001.93 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: 4483f7155353d9234fb117ee46d8bbe4e54ceacb.zip.