Blender 2.63 is now available for download.what’s new in this release?
new Blender mesh system with full support for N-sided polygons.
Portions of the mesh can now be hidden in sculpt mode.
support for a panoramic camera, mirror ball environment textures, and float precision textures.
new are render layer mask layers, a shadow render pass, ambient occlusion, and viewport display of background images and render layers.
Motion tracking improvements.
Add movieclip input support to the sequencer.
Add support for opengl rendering in the sequencer (header icons as with 3D view).