Ever since the move away from skeuomorphics in version 7, iOS has been in a state of flux -- one that many iPhone and iPad users and reviewers noted came at the expense of stability. With iOS 9 due out in public beta next month and to the general public this fall, Apple continues refining the appearance and behavior of the software that powers the iPhone, iPod touch and iPad. And just as it's doing with OS X 10.11 El Capitan, Apple is adding a variety of under-the-hood improvements and new tricks that focus on proactivity, UI refinements, and best of all, stability and performance.
One more thing
As noted earlier, iOS 9 will be available for the first time this year as a public beta. If you want to check it out before the final release, you can do so by signing up here. But a word of caution: iOS 9 will still be in beta, meaning it can be wonky at times. So unless you really, really have to try it out, you might want to wait until the final release in the fall. As we found out with iOS 7 and iOS 8, cool new features are only cool when they work.