- Update to version 2.74
This blender release comes with a couple of major improvements, such as
- memory and speed improvements for cycles rendering
- DoF and ambient occlusion support for the 3D viewport
- massive improvements for particles and hair
- a new cavity mask for texture painting
- and many more
Changelog: http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.74