I installed the new beta5 on a new server, and I chose authentication method 3 and I just couldn't get my client to connect. I rechecked the settings, created the certificates again, but to no avail. I was getting a "TLS handshake error" right after I introduced my user name and password.
Then I changed the authentication method to 4, didn't change any other setting - and it worked! (the client certificate already had to correct common name). Then I changed back to auth. method 3 and it worked also.
Very strange.
Anyways, Vip-ire thanks for this great contrib!