Caddy has been around for a while, so this is a major release for the project. Hard to believe this is true today (emphasis added)

Still the only web server to use TLS automatically and by default.

Caddy 2’s new architecture was inspired by 5 years of experience with Caddy 1 and took 14 months to design. There’s a lot here, so we probably need to get the team on The Changelog or Go Time to discuss in depth.