OpenConnect v2.22 — 2010-03-07
* Fix bug handling port numbers above 9999.
* Ignore "Connection: Keep-Alive" in HTTP/1.0 to work around server
  bug with certificate authentication.
* Handle non-standard port (and full URLs) when used with
  NetworkManager.
* Cope with relative redirect and form URLs.
* Allocate HTTP receive buffer dynamically, to cope with arbitrary
  size of content.
* Fix server cert SHA1 comparison to be case-insensitive.
* Fix build on Solaris and OSX (strndup(), AI_NUMERICSERV).
* Fix exit code with --background option.

OpenConnect v2.21 — 2010-01-10
* Fix handling of HTTP 1.0 responses with keepalive (RH#553817).
* Fix case sensitivity in HTTP headers and hostname comparison on
  redirect.

OpenConnect v2.20 — 2010-01-04
* Fix use-after-free bug in NetworkManager authentication dialog
  (RH#551665).
* Allow server to be specified with https:// URL, including port and
  pathname (which Cisco calls 'UserGroup')
* Support connection through HTTP and SOCKS proxies.
* Handle HTTP redirection with port numbers.
* Handle HTTP redirection with IPv6 literal addresses.

OpenConnect v2.12 — 2009-12-07

* Fix buffer overflow when generating useragent string.
* Cope with idiotic schizoDNS configurations by not repeating DNS
  lookup for VPN server on reconnects.
* Support DragonFlyBSD. Probably.

OpenConnect v2.11 — 2009-11-17
* Add IPv6 support for FreeBSD.
* Support "split tunnel" mode for IPv6 routing.
* Fix bug where client certificate's MD5 was only given to the CSD
  trojan if a PKCS#12 certificate was used.

OpenConnect v2.10 — 2009-11-04
* OpenSolaris support.
* Preliminary support for IPv6 connectivity.
* Fix session shutdown on exit.
* Fix reconnection when TCP connection is closed.
* Support for "Cisco Secure Desktop" idiocy.
* Allow User-Agent: to be specified on command line.
* Fix session termination on disconnect.
* Fix recognition of certificates from OpenSSL 1.0.0.