Please do NOT use this VirtualBox Release Candidate on production machines. Entering Release candidate phase means that the feature list is frozen. A VirtualBox Release Candidate is meant for evaluation and testing purposes.

You can download the binaries here.

Please do NOT open bug reports at http://www.virtualbox.org/wiki/Bugtracker but use our VirtualBox Beta/Release Candidate Feedback forum to report any problems with the Release Candidate. Please concentrate on reporting regressions since VirtualBox 4.1.18.


Incomplete list of fixes since VirtualBox 4.2.0 RC2:

VMM: fixed handling of task gates if VT-x/AMD-V is disabled

GUI: if the user pressed cancel on restore + snapshot current, the current state was lost

GUI: a couple of VM group related fixes

GUI: fixed guest resize of maximized Windows with certain window managers (Beta1 regression)

GUI: added Devices/Shared Clipboard to enable/disable the clipboard at runtime

fixed eCS 2.1 CD installer hang/crash (Beta1 regression)

fixed somewhat rare Solaris GRUB boot errors with SATA (Beta1 regression)

Main: fixed registering of new VMs (was broken since RC2)

3D: fixed application crashes on application shutdown (RC1 regression)

CD: fixes for audio CD passthrough for certain media players

Guest Control: a couple of fixes

OS X hosts: sign binaries

Windows Additions: fixed signing of 32-bit Windows Additions (Beta1 regression)

Solaris Additions: notify the kernel mouse subsystem of virtual resolution changes in vboxvideo.