開源虛擬機 VirtualBox 5.0 Beta 3 發布

開源虛擬機的VirtualBox團隊于本周四正式釋放出了第三個VirtualBox 5.0測試版本。

VirtualBox 4.0的最后一個主要版本在2010年12月發布，它采用了新的圖形化用戶界面，新的虛擬化硬件和重組的項目設計，進行了重大的改版。但項目主要版本的發 布步伐緩慢，上一次重要版本（版本4.3）在2013年底才發布。從那時起，一切都被正式稱為“維護”發布。

時隔五年之后的今年四月，VirtualBox，由Sun公司創建，現在由甲骨文管理的開源虛擬化系統，獲得了近5年來第一次的主版本更新發布，還 是有新的東西加入：Windows/Linux等客戶虛擬機支持PV、XHCI控制器支持USB 3.0設備、雙向復制和粘貼。

在VirtualBox 5.0 Beta 3中也帶來了很多Bug修復，客戶機可獲得XSAVE/AVX/AVX2等擴展、改進GUI加密、改進音量控制、修復SB16播放等改進。

VirtualBox 5.0 Beta 3下載地址：http://download.virtualbox.org/virtualbox/5.0.0_BETA3

VirtualBox 5.0 Beta 3發行說明：https://www.virtualbox.org/pipermail/vbox-announce/2015-May/000122.html

而相比于VirtualBox 5.0 Beta 2的改變主要有：

• 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

更多詳情：virtualbox.org/