Blender 2.44 was intended to be an upgrade release, mainly for plenty of bug fixes, but the developers took the effort adding at least a few interesting new features.
This version now is fully 64 bits compatible, new modifers were added, a couple of composite nodes were added, and a revamp of the old mesh primitives was done. But most relevant to mention is Blender 2.44's new long-awaited but unexpected feature: subsurface scattering (SSS) support!
http://www.blender.org/development/rele ... ender-244/
Blender 2.44 download
http://www.blender.org/download/get-blender/
實在很難相信這個東西是免費的