-Cycles: Better Subsurface Scattering, GPU support for Smoke/Fire and Point Density.
-Grease pencil stroke sculpting and improved workflow. OpenVDB caching for smoke/volumetric simulations.
-Reworked library handling to manage missing and deleted datablocks. Redesigned progress bar.
-Edit mode boolean tool, better decimate modifier.
-Improved extruding and weight painting tools for sculpting/painting.
-Support for Windows XP and the SCons build system was removed.
-Blender now requires OpenGL 2.1 minimum
-And: 100s of bug fixes and other improvements!
All images, logo and other trademarks are the property of their respective owners.