VirtualBox v5.0 Beta 1 is released. VirtualBox is a general-purpose full virtualizer for x86/x64 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.

VirtualBox v5.0 Beta 1 Changelog:
- VirtualBox 5.0 will be a new major release. Here is an incomplete list of changes:
Paravirtualization support for Windows and Linux guests to improve time-keeping accuracy and performance
Make more instruction set extensions available to the guest when running with hardware-assisted virtualization and nested paging. Among others this includes: SSE 4.1, SSE4.2, AES-NI, POPCNT, RDRAND and RDSEED
xHCI Controller to support USB 3 devices (requires the Extension Pack)
Drag and drop support (bidirectional) for Windows, Linux and Solaris guests
Disk image encryption (requires the Extension Pack)
GUI: Detach mode: Terminate the GUI but keep the VM running and re-attach to a running VM process (see here).
GUI: VM guest-content scaling support (including 3D acceleration)
GUI: New User Interface settings page for customizing status-bar, menu-bar and guest-content scaling
GUI: New Encryption settings tab for customizing encryption options for disk images
GUI: HiDPI support including application icons and optional unscaled HiDPI output on Mac OS X (including 3D acceleration)
GUI: Hotplugging support for SATA disks
New, modular audio architecture for providing a better abstraction of the host audio backends
Support for the NDIS6 networking framework on Windows (default on Vista and later)

- In addition, the following items were fixed and/or added:
VMM: improved timing on Solaris hosts with older VT-x hosts without preemption timers
VBoxManage: when exporting an appliance, support the suppression of MAC addresses, which means they will be always recreated on import, avoiding duplicate MAC addresses for VMs which are imported several times
USB: added USB traffic capturing
Made resizing X11 guests work more reliably
API: block the removal of the current snapshot if it has child snapshots (only relevant for VMs without snapshottable hard disks, their presence always prevented removal), which resulted in VM config corruption
API: mark VM configs with snapshots but without current snapshot as inaccessible, as this combination is nonsense
API: fix information for some automatically generated events (only with XPCOM, Windows host was not affected), which caused errors when getting some of the attributes over the webservice (bug #12379)
API: fix crashes in Java API clients using the XPCOM binding, happened with output parameters only (bug #11232)
API: a number of settings (e.g. network settings) can now also be changed when the VM is in saved state

Download: VirtualBox v5.0 Beta 1
Source: Here