"concurrently" means at the same time, which can be confusing when we say that it's single-threaded on a single process.

before the -d option only accepted absolute paths, and this wasn't documented. Even more, with the default value of "docs" it won't work. Now it transforms all relative paths to absolute paths before going on.

The -l option was removed: now it logs on syslog if -f (foreground) is not passed.

internally, gmid doesn’t care if the client issued a certificate, but now we pass that information to the CGI script in some new environment variables.

gemini://example.com was incorrectly parsed.

enhance the CGI scripting support so that script can take path parameters. That is, a script at /cgi/foo is called when the request path is /cgi/foo/bar/... This commit also introduce some backward incompatible changes as the default env variables set for the CGI script changed.