The exact date of ios 9??
There are 3 basic versions of iOS:
- Beta. These start months ahead of the release to developers, and starting this year, the public. These are evolutionary releases, and there are multiple releases.
- Gold Master (GM). This is the "final" version that Apple releases to the manufacturer to be installed on the new iPhones, iPads and iPods.
- Public Release/General Available. This is the final version that is released to the public for upgrading existing iPhones, iPads and iPods.
Obviously, the Beta releases have been ongoing for several months now.
Historically, Apple has released the GM immediately following the Apple event. That means that the GM version of iOS 9 will be released on 09/09.
Apple will announce the release date for the Public Release during the keynote. Typically it comes a day or two prior to the release of the new hardware. Expected dates range to between 09/16 to 09/18, as the new phones are rumored to be available for pre-order on 09/11 and delivered/available for sale on 09/18. Because these are rumored dates, they could slip, and we'll know for sure on 09/09 during the keynote.