Apple kicks off WWDC 2016 with a Keynote from Bill Graham Civic Auditorium at 10:00 am, today. Live Stream of the Keynote is available at Apple.com, and Apple TV.
Expected to make appearances today are the next version of iOS, watchOS, tvOS and macOS (formerly OS X, so the rumors said). Remember, this is a Developer Conference, any hardware announcements would be icing on the cake.