Blender 2.64 was released today for the open-source animation/modelling software with improvements delivered for the creation of the Mango open movie project
Improvements for Blender 2.64 include a full VFX pipeline, improved motion tracking using a planar tracker, easier green screen keying, and a new mask editor were done as part of this Mango Open Movie initiative. There's also a new tile-based compositing system, more advanced color management, sculpting can now handle masks, a skin modifier was introduced, and much more.
The Blender Game Engine also got improved shadows and physics as part of the 2.64 release.
More information and download links for the six-month Blender 2.64 release are available from Blender.org