If the Tor Project, the Tor network, and Tor Browser were to disappear, what would happen? Not only would millions of global, daily users lose access to Tor’s software, but the diverse ecosystem of privacy, security, and anti-censorship applications that rely on the Tor network would cease to function.
Fixing the guard discovery problem in Tor itself is an immense project -- primarily because it involves many trade-offs between performance and scalability versus path security, which makes it very hard to pick good defaults for every onion service. Because of this, we have created an add-on that can be used in conjunction with a Tor onion service server or a Tor client that accesses Tor onion services.
We are hyped to present the next generation of onion services! We've been working on this project non-stop for the past 4 years and we officially launched it two weeks ago by publishing our first alpha releases. All in all, the new system is a well needed improvement that fixes many shortcomings of the old design, and builds a solid foundation for future onion work.