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