VirtualBox 5.0 Beta 3 发布，此版本非稳定版本，请勿在生产环境上使用！

此版本现已提供下载，更新内容如下：

VirtualBox 5.0 Beta3 相比 VirtualBox 5.0 Beta 2 的改进如下：

• VMM: XSAVE, AVX and AVX-2 are now exposed to the guest (bug #11347)

• VMM: fixed a Guru Meditation when rebooting certain guests (for example Solaris doing fast reboot) by fixing the implementation for INIT IPI)

• GUI: Encryption progress reflection (see here)

• GUI: Encryption errors handling (see here)

• GUI: Properly disable unavailable menu actions (see here)

• GUI: properly report errors when trying to save the VM settings instead instead of dead-locking (see here)

• API: allow to hotplug SATA optical devices (see here)

• VRDP: fixed listening for IPv6 on some systems (bug #14038)

• USB: fixed attaching of high speed USB devices if xHCI is not present (they always ended up on the OHCI controller)

• Audio: improved volume control

• Audio: fixed SB16 playback

• Drag and drop: Transfers can be canceled properly, bug fixes

• Guest Control: Major overhaul, for example fixing wrong parameter quoting (bug #13157)

• Shared Folders: fixed a crash when removing (in some cases also when creating) a shared folder when the VM is running (see here)

• OVA: fixed importing of appliances without attached hard disks (see here)

• Snapshots: fixed a bug in handling a saved state when taking an offline snapshot

• Snapshots: fixed a sporadic bug when restoring a snapshot which left unused diff images behind

• VirtualKD: re-added device which was omitted by accident (see here)

• Windows hosts: more hardening fixes (e.g. bugs #14051, #14052)

• Additions/X.Org: fixed guest-to-host mouse mapping for Solaris and Linux Mint/Ubuntu 12.04.0 guests.

• Additions/X.Org: fixed resizing problem in openSUSE 10.3 and guests of a similar generation (see here)

• documented the Guest Additions heartbeat service

更多改进请看发行说明。

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。