Blender 2.70 is now available for download.What’s new in this release?
initial support for volumetrics in Cycles
faster rendering of hair and textures
motion tracker now supports weighted tracks
improved planar tracking
For mesh modeling there are new Laplacian deform and wireframe modifiers
more control in the bevel tool
game engine now supports object levels of detail.
the new user interface project
multithreaded dependency graph