This release fixes two bugs in 1.4.0, including a build issue on OpenBSD, and a bug under Linux 2.4 that can cause 100% CPU utilization if the --verb 0 option is used to suppress all output.
In addition, if a Linux 2.4 TUN/TAP open attempt fails, the code will now fall back to the 2.2 TUN/TAP interface and try again. http://sourceforge.net/projects/openvpn/ James