iOS 9.0 (build 13A5344) is an official Apple over-the-air update for the iPhone 6+, released on 2015-09-16T18:02:02Z. The update package is 1.55 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: aebb07f1e7e48c0899e3efd9062bed7d9e468094.zip.