Blender has had another long development cycle resulting in a release packed with rewrites, new features and improvements. The major additions this release are the Character Animation rewrite, the added Fluid Dynamics system, improved editing and rendering of Particle Based Hair, and the Modifier Stack.

See link for more info: http://blender.org/cms/Blender_2_40.598.0.html

Note: Blender is being released with source codes under the GNU Public License.

Blender therefore is fully free to use and distribute within any educational, professional or commercial environment. Artwork created with Blender - including python scripts - is the sole property of the creator. The software runs on a variety of systems including Linux, Windows and OSX.