Last month there was the Overgrowth Linux teaser and since then the issues with the Linux port have been worked out and it's ready to played at scale on your favorite penguin operating system. It's even reported that the Linux port of Overgrowth is now better off than the Windows version, which also puts it better than the Wine-powered version should you been resorting to that software previously.
The Overgrowth a180 change-log is available from the Wolfire blog. Embedded below are two videos about this latest Overgrowth update on Linux.