iPadOS 8.4 (build 12H143) is an official Apple over-the-air update for the iPad 2 (GSM), released on 2015-06-30T15:51:06Z. The update package is 78.62 MB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4f69f3492325398a8d18bde30ae73c4f395b660f.zip.