Unattended installation: Fixed regression introduced in 6.1.28, causing partitioning failure for Windows XP to 10 (bug #20769).E1000: Fix link status reporting for certain Linux kernels (some Oracle Linux ones, probably more).

Audio: Fixed accidental creation of empty debug log file when the OSS audio backend was configured.GUI: Fixed keyboard focus loss in rare circumstances when using the mini toolbar in fullscreen mode.VMM: Workaround for OS/2 guest unstability on newer AMD CPUs due to a missing TLB flush in OS/2 (bug #20625).VMM: Changed the guest RAM management when using Hyper-V to be more compatible with HVCI (bug #20627 and #20694).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.

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. 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, Windows 7, Windows 8, Windows 10), DOS/Windows 3.x, Linux (2.4, 2.6, 3.x and 4.x), Solaris and OpenSolaris, OS/2, and OpenBSD. 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).

VirtualBox is a family of powerful x86 virtualization products for enterprise as well as home use.

Vm virtualbox mac os x on windows 8.1