VirtualBox是德国一家软件公司InnoTek所开发的虚拟系统软件（已被SUN收购），它不仅具有丰富的特色，而且性能 也很优异。更是开源的，成为了一个发布在GPL许可之下的自由软件。VirtualBox 可以在 Linux 和 Windows 主机中运行，并支持在其中安装 Windows (NT 4.0、2000、XP、Server 2003、Vista)、DOS/Windows 3.x、Linux (2.4 和 2.6)、OpenBSD 等系列的客户操作系统。
VMM: fixed SMP stability regression
USB: fixed USB related host crashes on 64 bits Windows hosts (#5237)
Main: wrong default HWVirtExExclusive value for new VMs (bug #5664)
Main: DVD passthrough setting was lost (bug #5681)
VBoxManage: iSCSI disks do not support adding a comment (bug #4460)
VBoxManage: added missing --cpus and --memory options to OVF --import
GUI: fixed VBox URL in update dialog for German and Dutch languages
GUI: NLS updates
OVF: fixed export of non standard storage controller names (bug #5643)
Solaris hosts: several USB fixes (including support for Apple iPhone)
Mac OS X hosts: several fixes for the 3D support
Mac OS X hosts: re-enabled CMD+Key combinations, even if the Host-Key isn't CMD (bug #5684)
Mac OS X hosts: fixed to fast scrolling if the mouse wheel is used inside the guest (bug #5672)
Mac OS X hosts: dock & menubar don't disappear in fullscreen when the VM is not running on the primary display (bug #1762)
Mac OS X hosts: added an option for enabling "Auto show Dock & Menubar in fullscreen" (bug #5636)
Windows host installer: fixed starting VBox with wrong privileges right after installation (bug #4162)
Host interface and host-only networking: prevent driver from unloading while a VM is still active (Windows host only)
Host-only networking: fixed host-only interface creation (Windows host only) (bug #5708)
Virtio-net: don't crash without an attached network
Virtio-net: fixed the issue with intermittent network in VM with several virtual CPU cores.
NAT: fixed port-forwarding regressions (bug #5666)
NAT: fixed crash under certain conditions (bug #5427)
NAT: fixed resolving of names containing a slash or underscore when using the host resolver DNS proxy (bug #5698)
ATA: fixed sporadic crash when resuming after a VM was forcefully paused (e.g. due to iSCSI target being unavailable)
SATA: fixed raw vmdk disks (bug #5724)
Linux guests: increased the default memory for Redhat and Fedora guests
Linux Guest Additions: fixed installation on RHEL 3.9 guests and on some 64bit guests
Linux Guest Additions: prevent SELinux warnings concerning text relocations in VBoxOGL.so (bug #5690)
X11 guests: fixed mouse support for some Xorg 1.4 guests (openSUSE 11.0)
X11 guests: fixed xorg.conf modification for some older Xorg releases (openSUSE 11.1)
Windows guests: fixed some VBoxService shutdown issues
Windows guests: fixed VBoxVideo spinlock issues on NT4
Windows Guest Additions: fixed uninstallation issues of NT4
Shared folders: fixed resolving of symlink target (bug #5631)
2D Video acceleration: delay loading of OpenGL dlls for Windows hosts to avoid GUI crashes on misconfigured systems
2D Video acceleration: fixed issues with video picture not displayed on playback
