No they are still broken. Look for example at this post. ISO8601 is a mystery - #2 by hilary.j.oliver
It refers to suite documentation at https://cylc.github.io/cylc-doc/current/html/suite-config.html#advanced-starting-up
which gives a 404 error. I know how to go find the documentation and look up what I need but breaking all of the links to documentation from the forum seems like a real problem to me.