VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.
Some of the features of VirtualBox are:
- Modularity. VirtualBox has an extremely modular design with well-defined internal programming interfaces and a client/server design. This makes it easy to control it from several interfaces at once: for example, you can start a virtual machine in a typical virtual machine GUI and then control that machine from the command line, or possibly remotely. VirtualBox also comes with a full Software Development Kit: even though it is Open Source Software, you don't have to hack the source to write a new interface for VirtualBox.
- Virtual machine descriptions in XML. The configuration settings of virtual machines are stored entirely in XML and are independent of the local machines. Virtual machine definitions can therefore easily be ported to other computers.
# The following items were fixed and/or added:
* GUI: fixed keyboard with XQuartz X server
* Main/Display: fixed a crash with multi-monitors under certain conditions (Mac OS X hosts only)
* Main/Properties: fixed a crash under certain conditions, for example after wakeup from host hibernate
* Settings: don't lose the internal network settings if they are not currently active
* Storage: another incompatibility fix for VHD differencing images with Hyper-V
* VBoxManage: don't read beyond the end of the file specified with export --eulafile
* Linux hosts / guests: Linux 3.9-rc0 compile fixes
* Linux Additions: fixed two warnings in the shared folders guest kernel module
* Linux Additions: don't crash VBoxService if libdbus is not available
* Windows Additions: fixed upgrading MultiMedia Redirection (MMR) support