VirtualBox 5.0 是个重大版本，VirtualBox 5.0 Beta 2 现已提供下载：http://download.virtualbox.org/virtualbox/5.0.0_BETA2/。 VirtualBox 5.0 Beta 2 相比 Beta 1 版本改进如下： VMM: added support for using paravirtualization providers with raw-mode VMs GUI: encryption passwords no more centered (see here) GUI: canceling encryption password prompt at VM startup proposing to close VM (see here) GUI: Enter/Return key press for the last (or single) entry of the encryption password prompt accepts the dialog (see here) GUI: VM menu-bar contents reordering - moving some of unusual for the Help menu stuff into separate File menu (see here) GUI: scaling support will use the old smooth mechanism for the software renderer case (see here) GUI: optimized medium enumeration for the large differencing trees GUI: USB controller types for the given VM are now reflected in VM details pane GUI: avoid error message during shutdown of a separate VM (see here) GUI: fixed a rare crash when starting VM in separate mode Drag and drop: fixed a crash when copying over host elements to the guest Audio: don't crash when attaching via RDP to a VM with disabled audio (see here) Input: fixed vertical scrolling and buttons 4/5 in PS/2 !ImEx protocol (see here) 3D: fix crash on restoring state on X11 hosts (bug #12737) Bridged Networking: avoid host networking stack pause/restart on VM start/stop/pause (Windows hosts only; see here) API: fixed long-standing issue (Windows host only) which caused loss of error information for the VM start operation API: fixed too strict condition for changing extradata settings of newly created VMs (see here) API: fixed too strict condition for creating persistent shared folders (see here) rdesktop-vrdp: upgraded to version 1.8.3 BIOS: fix for booting from SCSI CD/DVD media (see here) BIOS: fix for reads partially beyond end of disk (bug 14021) Windows Additions/WDDM: improved video memory utilization and allow more/bigger guest screens with large resolutions (including HiDPI) Linux Additions: fix for Linux guest kernels < 2.6.13 (e.g. RHEL4; see here) Added serial port forwarding via TCP socket VirtualBox 是一款功能强大的 x86 虚拟机软件，它不仅具有丰富的特色，而且性能也很优异。 VirtualBox 5.0.0_BETA2 发布，开源虚拟机下载地址
