At Least One More iOS 9 Beta
Apple's been sticking to a very specific iOS 9 beta release process. Per usual, we've seen the company push out new iOS 9 betas every two weeks and we expect that trend to continue as we push closer to the iOS 9 release date.
At this point, we'd expect at least one more iOS 9 beta to emerge before the public iOS 9 release. iOS 9 beta 5 was released last week which leaves ample room for another iOS 9 beta in August.
At the very least, you can count on the release of a GM ahead of the iOS 9 release date. We'd expect the GM to arrive in September just ahead of the iOS 9 update's public release date. The Gold Master is the final version of software that Apple will release to the public and it's the final beta.