Download VirtualBox 4.0.8

Oracle has released the fourth update to version 4.0 of VirtualBox with version 4.0.8. This program can be used to install other operating systems on a computer in a virtual environment. In this way it is possible to use different OS’s on the same hardware. VirtualBox is available for Windows XP and above, Mac OS X, Linux, and Solaris, and is capable of many guest operating systems to turn.

VirtualBox is available in two versions. The full version has additional functionality, such as support for USB ports and the remote display protocol, but is only free for private use and evaluation purposes. The extra functionality is closed source and is therefore not present in the open source version. It may, however, be used in commercial environments, provided you install it yourself on the PC. New in version 4.0 is, among other things, that the program is now offered as a basic package and that it contains extra functionality in separate extension packs. The following changes and improvements have been made in this update:

The following items were fixed and/or added:

• Mac OS X hosts: fixed incompatibility with recent Mac OS X versions in 64-bit mode (bug #8474)
• Mac OS X hosts: fixed incompatibility with hosts with more than 16 cores (bug #8389)
• Mac OS X hosts: fixed painting corruptions on a second monitor in 64-bit mode (bug #7606)
• GUI: restored functionality to set an empty host key to disallow any host key combination (4.0.6 regression; bug #8793)
• VBoxManage: added controlvm screenshotpng subcommand for saving the screenshot of a running VM in PNG format
• VBoxHeadless: fixed potential crash during shutdown (Windows hosts only)
• NAT: built-in services use the correct Ethernet addresses in Ethernet header and in ARP requests
• Host-only networking: fixed adapter reference counting
• E1000: fixed rare guest crashes with Linux SMP guests (bug #8755)
• SATA: fixed guest disk corruption under rare circumstances (only relevant for guests with more than 2GB RAM; bug #8826)
• Storage: fixed data corruption after a snapshot was taken with asynchronous I/O enabled (bug #8498)
• Floppy: several improvement
• HPET: another fix for time jumps (bug #8707)
• USB: removed assumption that string descriptors are null-terminated (Windows hosts only)
• 3D support: fixed a potential crash when resizing the guest window
• 3D support: fixed GNOME 3 rendering under Ubuntu 11.04 and Fedora 15
• Snapshots: fixed another bug which could lose entries in the media registry when restoring a snapshot (bug #8363)
• Shared Folders: don’t stop mounting the other valid folders if one host folder is inaccessible (4.0.6 regression)
• Linux Additions: check whether gcc and make are installed before building kernel modules (bug #8795)
• Solaris Additions: added support for X.Org Server 1.10
• Guest Additions: fixed inappropriate Guest Additions update notification when using vendor-specific version suffixes (bug #8844)

VirtualBox 4.0.0 screenshot, click on the image for a larger version.