I just uploaded
CopperCube in version 1.4.0.
Besides all the new features in this release, a nice side effect is that it
apparently now also runs in Wine, since it now also supports OpenGL. Linux users who complained for years that irrEdit doesn't run in Wine now finally have a way to edit Irrlicht scenes. :)
Other new stuff is for example support for Mac OS X (also on Windows), support for 3D Studio Max .ase, Stanford Polygon Lib .ply, AutoCAD .dxf and Truespace .cob and .scn files, improvement of COLLADA .dae, Lightwave .lwo and 3D Studio .3ds importers. Also, it now gives the possibility to use own prefabs.
And of course, this release finally ends the Mac OS X beta, both CopperCube versions (Windows and Mac OS X) now have the same version numbers and will be released at the same time from now on.