Today (June 6th 2009) is time of new release.
News:

• Enabled connection via SSL.
• Introduced URL highlighting.
• Implemented capability to reside in system tray.
• Added support for user defined aliases.
• Added /exec command enabling user to invoke external shell commands from inside the client, redirecting their output either to the client window, or — using the -o option — sending it to the channel/query.
• Added /query command opening the query window with selected user.

Reported bugs are fixed.