Apple today said that WWDC20 will somehow be the biggest WWDC to date, despite being a virtual-only event.

“WWDC20 will bring together the global Apple developer community of more than 23 million in an unprecedented, virtual way, from June 22 to 26,” the Apple announcement notes. “Apple today shared the WWDC20 lineup, including keynote and Platforms State of the Union timing, and information on how developers can learn about the future of iOS, iPadOS, macOS, tvOS, and watchOS, and engage with Apple engineers.”

The way they can do this is to pay up: Apple’s developer program costs $100 per year, and that’s the only way you can take part in WWDC, aside from the keynote address, which will stream live publicly. By contrast, Microsoft’s Build 2020 conference was entirely available to the public despite normally being a paid, in-person event.

Here’s what Apple is promising for WWDC20.

Special Event Keynote. Taking place on June 22 at 10 a.m. PDT, this keynote address will stream directly from Apple Park via apple.com, the Apple Developer app, the Apple Developer website, the Apple TV app, and YouTube, and will also be available for on-demand playback.

Platforms State of the Union. “Hear directly from Apple engineering leaders as they dive deeper into the latest advances across iOS, iPadOS, macOS, tvOS, and watchOS.”

100+ Engineering Sessions. “Developers will have the ability to learn how to build the next generation of apps with more than 100 technical and design-focused sessions helmed by Apple engineers.

All-New Apple Developer Forums. These new forums “will connect the developer community with more than 1,000 Apple engineers to answer questions and engage in technical discussions.

1-on-1 Developer Labs (by appointment). “Developers will be able to request an appointment with the Apple engineers who helped build the latest advances in Apple platforms, offering one-on-one technical guidance and in-depth details on how to implement new features.”