2.67 release: May 7th, 2013.
- New in this release is the Freestyle render engine for non-photorealistic rendering, which can generate 2D line drawings in various styles.
- The paint and sculpt system is now much more consistent across different paint modes and has gained various new features. Motion tracking was made faster, and Cycles now has initial support for subsurface scattering.
- The node system now support more flexible group editing. For developers of external render engine addons it is now possible to support node based materials.
- For 3D printing an addon was added to analyze and export the meshes.
2.67a release: May 21st, 2013
2.67b release: May 30th, 2013
A Subsurface Scattering shader is now available, to create materials such as Wax, Marble or Skin. Minimum pixel width was added to hair rendering and several performance improvements have been made, to render scenes without hair or motion blur faster. The OSL shading system received performance improvements as well.
Added border for compositor viewer node, which restricts what is to be composited for faster previews. Also border rendering and cropping are finally working as expected. Some optimization was done as well.
New mesh modeling tools: Individual Face Inset, Poke Face and Knife Project. Faster image display in the image and movie clip editors. Better support for UTF-8 text in the text and console editors, and various improvements to other editors.
Node Groups editing is less cluttered and more consistent with other nodes. Multiple node editor windows can be used independently. Nesting node groups is fully supported. Pinning is supported as well in the node editor to disable context switching.
The API now supports custom node types. Nodes can be defined and registered in python scripts like other UI classes. This allows the creation of entire new node systems for addons, external render engines and the like.