VirtualBox 5.0 beta 发布开源虚拟机

这是 VirtualBox 5.0 beta 版本的最终版，主要改进了下面这些特性：

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
USB hard disks
Support for the NDIS6 networking framework on Windows (default on Vista and later)