Please do not use this VirtualBox Beta release on production machines. A VirtualBox Beta release should be considered a bleeding-edge release meant for early evaluation and testing purposes.

You can download the binaries here.

Please do NOT open bug reports at http://www.virtualbox.org/wiki/Downloads but use this forum to report any problems with the Beta.

Changes since Beta 1: (regressions and fixes for new features only; additional fixes below)

• High CPU usage with certain idle Windows guests (e.g. XP SP2)
  
• Performance improvements for SMP guests
  
• Reset issues with SMP guests
  
• Windows 7 x64 boot problems with SMP
  
• Windows 7 shutdown hangs with SMP
  
• Hanging VM when unmounting an ISO with SMP guests