Apple’s annual Worldwide Developers Conference happens June 8 through June 12 this year, at the Moscone Center in San Francisco. The event is by invitation only, with tickets opening up for registration today, allowing developers to sign up for the random selection process. Registration ends on April 17, at 10 AM PT, with the lucky devs who win tickets notified by April 20 of their selection. To sign up, you need to currently be enrolled in either the iOS Developer Program, the iOS Enterprise Developer Program or the Mac Developer Program (as of April 14 at 5:30 AM PT) and you’ll be charged $1,599 US if you’re selected to attend. This is the 26th annual WWDC, and it will offer over 100 technical sessions presented by Apple engineers with information about using new and existing developer tools to maximum effect. Hands-on labs are also available to those who attend in person, and for those who don’t win a ticket in the random drawing, Apple is also live streaming select session