This is the default for newly created VMs. When the 'default' driver is selected, the best audio backend option for a platform will be used.

Audio: Added 'default' host driver type to make it possible to move VMs (appliances) between different platforms without the need of changing the audio driver explicitly.

Audio recording: Now using Vorbis as the default audio format for WebM containers.

Linux and macOS use native engine while for Windows host it is separately implemented.

GUI: Improved theme support on all platforms.

GUI: Adding new notification center unifying most of running progresses and error reporting around the GUI.

GUI: Added a new help viewer widget which enables the user manual to be navigated and searched.GUI: Reworked the new vm wizard to integrate the unattended guest OS installation and to have a more streamlined work flow.GUI: Added a new utility similar to 'top' or 'resource monitor' which lists peformance statistics (CPU usage, RAM usage, disk I/O rate, etc.) of running guests.OCI: Cloud networks can now be configured via Network Manager tool same way as it is done for Host-only and NAT networks.OCI: Cloud virtual machines can be added to Virtual Machine Manager and controlled as local VMs.Virtual machines can be fully encrypted now, including the VM config logs and saved states (CLI only for now).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.

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