Now you can also see new WWDC-themed iMessage stickers in Messages. The new update has also introduced placeholders for sessions and labs, which is expected as many of the sessions are based on the features, news, and possibly hardware unveiled at the event.
Apple is still offering a tvOS app for the fourth and fifth generation Apple TVs so that developer can watch WWDC sessions on their television sets.
The Worldwide Developers Conference starts on June 3 with a Keynote that will begin at 10:00 am Pacific Time (1:00 pm Eastern). It will be live-streamed on Apple's website and the Apple TV app.