6 - Add -a option, authentication for tlsproxy via basic digest authentication.
8 - Better error handling.
9 - Fix compile with recent GnuTLS (e.g. 3.2.3).
10 - Improve (error) logging; log to stderr.
11 - Add (basic) man pages.
13 - tlsproxy-setup: Increase expiry-date and use larger private key.
17 - Add -u option, passthrough TLS connections to unknown hostnames.
18 - Add ./configure --disable-ipv6 for IPv4 only machines.
19 - Send HTML with error messages (not only headers).