This means Apple’s new modern design language would touch all of Apple’s software platforms for its devices. Apple is aiming for a degree of consistency and unification across its operating systems. Users can expect more liberal use of transparency and glass-like materials, changes to navigation hierarchies inside apps, new icons, and more.

WWDC event serves as a platform for unveiling new software and technologies. Will this year's conference deliver a reality check on the company's AI aspirations?

WWDC -- the company's developer conference -- is usually a showcase for Apple's future-forward ideas. It's also where the company discusses its dev tools, as you'd expect. And it's where previews of all the new OS versions are revealed, giving an early look at what's coming to the iPhone, iPad, Mac and other Apple devices.