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 RC1:

Windows 3.x/9x runs without hardware virtualization again (broken in Beta 1)

Booting from SATA disks > 128GB works again (broken in Beta 1)

Mixing AHCI and SCSI controllers produces same disk order as 4.1 (broken in Beta 1)

OS/2 guests with APM.SYS no longer crash during boot (broken in RC1)

64-bit guests on 32-bit OSX Snow Leopard hosts made the host hang

enable "Hypervisor Present bit" for OS X guests

Guest Execute fixes

GUI fixes

EFI fixes

Main: validate group name collision with existing VM names

Main: don´t crash during restoring a snapshot if the chipset type changed in the meantime

Disk: allow to restore a VM from a saved state if the VM was moved to a file system where we have to disable async I/O

Linux 3.6 compilation fixes for shared folders

fixed dkms.conf LF problem