Due to the insanely high demand, we now accept 1.7 clients into The Nexus. Please keep in mind, we do NOT recommend use of 1.7, as it is riddled with lots of bugs, and can cause many graphical and server related errors!
TL;DR: If you're lazy... you can join with 1.7 clients now. If you're looking for the best experience, stay 1.6.4.
That's all! Ciao!
Please keep in mind! All bug reports submitted that are related to 1.7 will be instantly locked. We cannot officially support this client, especially since Bukkit doesn't even have an official build for it yet. Thank you!