Upgrades to version 6 are available for V-Ray for 3ds Max, V-Ray for Maya, V-Ray for SketchUp and V-Ray for Rhino license holders.
Upgrades to version 6 for other V-Ray integrations will be possible upon their release to the new version.
For V-Ray for SketchUp, Rhino, Revit, or Nuke upgrades to version 5, click here.