VirtualBox is a family of powerful x86 virtualization products for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL). Presently, VirtualBox runs on Windows, Linux and Mac hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista), DOS/Windows 3.x, Linux (2.4 and 2.6), and OpenBSD. VirtualBox is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and platforms it runs on. VirtualBox is a community effort backed by a dedicated company: everyone is encouraged to contribute while innotek ensures the product always meets professional quality criteria.
VMM: properly handle NMIs on Linux hosts with X2APIC enabled VMM: fixed potential crashes with 64-bit guests on 32-bit hosts (bug #11979) GUI / seamless: properly handle mouse wheel scroll events GUI, VBoxManage: when unregistering a VM, also unregister the hard disk images which are used exclusively (bug #10311) GUI: prevent crashes under certain conditions on X11 hosts 3D: multiscreen fixes (incorrect mouse position, flickers) 3D Support: several fixes for the Windows WDDM video driver (multiscreen, seamless) Snapshots: made live snapshots work again (bug #9255) Teleportation: made it work again (bug #9455) VBoxManage: on snapshot take, --pause is default and --live is for doing live snapshots VBoxSVC: don't crash on systems with many VLAN interfaces (Solaris hosts only) Network: after the host resumes from suspend, disconnect and reconnect the virtual network cables to force renewing the DHCP leases for the guests. So far only Mac OS X hosts and Windows hosts (bug #10063). NAT: on name server changes force a reconnect of the virtual network cable to notify the guest (Mac OS X hosts only) Mac OS X installer: keep previously installed Extension Packs on VirtualBox upgrade Linux hosts / guests: Linux 3.11 fixes (bug #12001) Solaris hosts: fixed a potential kernel panic caused due to unexpected preemption due to logging. Windows hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB3 ports. Linux Additions: added PCI device identifier to vboxvideo.ko fixing DRI initialization under certain conditions (bug #11957) Linux Additions: fixed udev detection in the init script with Linux 3.x kernels