The server has been updated tonight to Minecraft 1.6.4! This means it's also time to change your settings to keep on playing with us.

In the launcher, click the "Edit profile" buttton and select "release 1.6.4" as the "Use version" setting. You will then be able to join as before.

Minecraft 1.7 is scheduled to be released tomorrow. However, as usual, it will take some time before a stable server version is available. That's why it's important that you select "release 1.6.4" in your launcher instead of "Use Latest Version", as you wouldn't be able to connect otherwise!