I know that is to be expected with RC versions, but shouldn’t we have a “RC docs” going with the ongoing releases or at least somewhere in release notes? Wasn’t a big deal at all, just saying it.
To convert Caddyfile to JSON, just run caddy adapt, giving it your Caddyfile with the --config parameter if necessary (the default is the Caddyfile in the same dir).
And yeah, docs are hard; I haven’t gotten around to publishing proper docs for the RC version. It’s been a busy few weeks and I’m a little behind on everything still.