Probably due to a glitch at Apple, some users are receiving alerts to update from the iOS 9 beta. Unfortunately, for those that try there is no update to download ahead of the September 9 event.
Ios 9 beta RSS
A couple of weeks after releasing the fourth beta of its updated mobile OS, Apple has now released iOS 9 beta 5 for developers, along with an update for its beta of watchOS 2.
