After Siri accidentally spilled the beans a little early, Apple officially announced today that the company will hold its 27th annual Worldwide Developers Conference (WWDC) this June. Apple will be hosting the creative talent behind the world’s most innovative apps from June 13 through 17 in San Francisco.

At WWDC, Apple’s developer community comes together to learn about the future of Apple’s four software platforms — iOS, OS X, watchOS and tvOS.

According to today’s announcements, Monday’s events include the keynote address at the Bill Graham Civic Auditorium. The rest of the week’s conference sessions will take place at Moscone West.

“With four innovative operating systems and a new, intuitive programming language powering over 1 billion devices worldwide, there has never been a more exciting time to bring our developer community together,” said Philip Schiller, Apple’s senior vice president of Worldwide Marketing. “WWDC 2016 is going to be a landmark event for developers who are coding in Swift, and building apps and products for iOS, OS X, watchOS and tvOS. We can’t wait for everyone to join us — in San Francisco or through the live stream.”

Apple expects over 1,000 Apple engineers to attend the event, supporting more than 150 hands-on labs and events to provide developers with code-level assistance and insight into optimal development techniques and guidance on how they can make the most of iOS, OS X, watchOS and tvOS technologies in their apps. Apple will also explore the latest innovations, features and capabilities of iOS, OS X, watchOS and tvOS, and share best practices for enhancing an app’s functionality, performance, quality and design.

The event also hosts a series of get-togethers for attendees, all focused on particular topics with special guest speakers and activities. There will also be the Apple Design Awards, which recognize iPhone, iPad, Apple Watch, Apple TV and Mac apps that demonstrate technical excellence, innovation and outstanding design.

The Worldwide Developers Conference sessions will be streamed live throughout the week via the WWDC website and through the WWDC app.