Turtle Arena 0.6.1 is a minor release which fixes CVE-2012-3345 and improves bots ability to swim up for air when drowning. Multiplayer is fully compatible with Turtle Arena 0.6.
Download Turtle Arena 0.6.1 now!
As of writing, the Ubuntu and Mageia packages haven’t been updated.
EDIT (August 16 2012): Ubuntu PPA packages are now up to date.