Apple has started issuing media invitations for its upcoming Worldwide Developers Conference (WWDC) 2016 that will start on June 13 and come to an end on June 17. The annual event will be hosted at Bill Graham Civic Auditorium, San Francisco.

The WWDC 2016 keynote will begin at 1:00 p.m. ET. Here is what we can expect from the upcoming Apple event:

iOS 10 and OS X 10.12

The Cupertino company is expected to reveal the latest software versions for its devices such as iPhone, iPad, MacBooks, Apple TV and Apple Watch. The company is heavily speculated to unleash iOS 10 and its new features. It is also expected to unveil OS X 10.12 for the MacBooks.

The iOS 10 is expected to include a revamped edition of Apple Music app, a Siri SDK that will be aimed towards developers and support for Apple on different internet browsers. Apple is expected to integrate Siri for Mac in the upcoming OS X 10.12. It will allow users to access Siri through a button that will be available on the menu bar and dock, Mac Rumors reported.

MacBook Pro 2016

In the past, Apple had used the WWDC events to announce MacBook Pro and MacBook Air devices. Even though recent rumors suggested that Apple will be introducing MacBook Pro 2016 in the fourth quarter of this year, early speculations also hinted that the new notebook would be unleashed at the WWDC 2016.

The MacBook Pro 2016 is expected to come with slimmer chassis and OLED touch-sensitive bar on the keyboard. As it has been over a year since the arrival of Apple Watch in April 2015, the Cupertino company is also expected to make announcements on the new developments with its smartwatch.