A new version of CW3 has been released. It is version 2.12. For steam you don't need to do anything (other than restart the steam client if you are in a hurry). For the non-steam version just go here:
http://knucklecracker.com/creeperworld3/patches.php
Now don't get too excited. This version doesn't have any game play changes. It just brings the guts of the game up to speed with the latest tech. I wanted CW3 and Particle Fleet to be working off the same version of Unity and Steam APIs, so CW3 got updated a couple months ago to the latest engine and APIs. It's been in prerelease testing for the last few months.
If you have a problem with the V2.12 of the game, feel free to revert to the V2.08 version, you won't miss anything.
Instructions for reverting the Steam version are here: http://steamcommunity.com/app/280220/discussions/0/405692758718489596/
Here are non-Steam links for the older version:
32- or 64-bit version for Windows: http://knucklecracker.com/creeperworld3/dd_webb/CreeperWorld3-208.exe
64-Bit only Windows: http://knucklecracker.com/creeperworld3/dd_webb/CreeperWorld3-208-64bit.exe
OSX version: http://knucklecracker.com/creeperworld3/dd_webb/CreeperWorld3-208-OSX.zip
Linux version: http://knucklecracker.com/creeperworld3/dd_webb/CreeperWorld3-208-linux.tgz