Apple sends out invitations for its WWDC keynote

We'll soon know much more about Apple's future plans for Siri, iOS and a lot more.

The company sent out invitations for the opening act of its World Wide Developers Conference, which will kick off June 4, in San Jose, California.

The invitation doesn't reveal much more, though it invites attendees to a Tuesday morning keynote that will start at 10 a.m. Pacific Time.

The annual event is where Apple typically introduces the next version of iOS and macOS, along with its other platforms. In recent year's we've also seen new hardware come out of the event, which has historically been strictly focused on software. Last year the company introduced the HomePod at the developer event.

The invitations also come one day after Siri began dropping some major hints about WWDC. The assistant teased it's about to get a major update and, possibly, a new voice.

We're also expecting Apple to unveil iOS 12, which will reportedly focus more on improving the core features of iOS rather than adding a ton of major new features. Other reports have hinted at a plan to bring iOS apps to the desktop via a new kind of "universal" app that could merge the Mac and iOS ecosystems.

Apple being Apple, there are also likely quite a few other surprises in the works, too. Luckily, we don't have much longer to wait.