iOS 9GM was released last night by the Apple company and we are basically talking about the final version of the iOS 9 operating system that is offered in advance to application developers for the iOS platform in order to prepare their applications for the update.
I installed iOS 9GM last night on iPhone 6 Plus updating directly from iOS 9 beta and I can say that the change is major compared to what you find in a beta build still unfinished and not prepared to be offered to end users.
performant iOS 9GM they are clearly superior to those offered by iOS 9 beta, so that the applications run much more smoothly and do not close as often, but of course the problems here depend on each individual application and the compatibility with the operating system.
On the autonomy side, I can't tell you anything for now, but the battery autonomy in iOS 9 beta was extremely bad and I expect things to change radically in the final version, otherwise the iPhone 6 Plus seriously loses its usefulness.
iOS 9GM
iOS 9 GM does not have the new Live Photos functions and those for using animated wallpapers for the old terminals, so don't expect anything because they are exclusive to the iPhone 6S and iPhone 6S Plus and will not be offered on other Apple devices .
Although I updated from iOS 9 beta to iOS 9 GM, I recommend you to do the installation through a clean restore without installing a backup, which I will do when the final version of iOS 9 is available official from Apple.
iOS 9 GM cannot be installed through Software Update, so in a few minutes I will give you a tutorial through which you can install it in your own terminals in just a few steps.
