On Wednesday (Oct 24) Mojang will release a pretty major update, version 1.4 of Minecraft labeled Pretty Scary Update. When they do it, you will see an option in your game to update it to the latest version.
However, before you update there’s an important point to keep in mind: make a backup of the current 1.3.2 version of the game you have running now on your PC. Without it, you will not be able to log in to our skyblock MCSpaceCraft.com server until we update it.
And as I’ve pointed out elsewhere, it could take up to 2 weeks for everything to be ready for upgrade server side on our end. The Craftbukkit core this server is running, which is developed by an awesome 3rd party team, plus the plugins we use to enrich your experience.
So in short… Backup your 1.3.2 Minecraft version you’re running now somewhere on your computer and use it to connect to our server until we’re ready for 1.4.