VirtualBox 4.3.2 更新了

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VirtualBox 4.3.2 作为一个维护版本，主要是一些bug修复。

This is a maintenance release. The following items were fixed and/or added:

• VMM: fixed restoring of the auxiliary TSC MSR in VT-x that caused host BSODs on Windows 8.1 hosts and unpredictable behavior on other hosts (bug #12237)
• VMM: provide fake values for a couple of MSRs to make more guests happy on certain hosts
• VMM: fixed detection of VT-x on certain machines where the BIOS would not set the VMX LOCK feature bit, which affected the VM settings in the GUI
• VMM: fixed TPR threshold which caused BSODs on Windows XP guests that use the I/O APIC (VT-x only; bug #12227)
• VMM: fixed PATM saved state incompatibility for software virtualized VMs (bug #12222)
• VMM: don't fail if AMD-V isn't available if the VM is configured to use software virtualization
• GUI: fixed guest resize breakage on visual representation mode change (when switching from normal to fullscreen etc)
• GUI: make sure the guest screen is resized after restoring a VM from a saved state if the host screen size changed
• GUI: disabled SCROLL LED sync from HID LEDs synchronization (Mac OS X hosts only)
• Webcam passthrough improvements including GUI support (see the manual for more information)
• Guest Control: implemented more IGuestSession methods
• Guest Control: added support for deleting and renaming guest files + directories in VBoxManage
• Guest Control: various bugfixes
• API: incorrect handling of hardware UUID default value, resulting in an all zero DMI/SMBIOS UUID, which leads to Windows requesting re-activation (4.3 regression; bug #12244)
• 3D support: fixed crash on shutdown if 2D video acceleration is enabled (Mac OS X hosts only)
• 3D support: miscellaneous fixes
• Storage: fixed detection of CD/DVD media when switching from an empty to a host drive with passthrough enabled
• Storage: fixed hang of the VM process when the disk is full under certain circumstances
• NAT: listen for changes of NAT Network setting at runtime
• NAT: NAT Network DHCP server now saves leases to a persistent storage
• Main: monitor changes in host DNS configuration
• Mac OS X host: reworked a mechanism of adding a VM desktop alias from the VM selector
• Mac OS X installer: remove old kernel extensions during upgrade (bug #12258)
• Linux Additions: correctly set umask before installing (bug #12166)
• X11 Additions/3D: fix freezes starting 3D desktop (bug #11503, thank you Sam Spilsbury)
• X11 Additions/3D: fix depth buffer support (bug #11905)
• X11 Additions/3D: fix Age Of Empires 3 rendering (bug #11331)
• Windows Additions/3D: fix Google Earth plugin rendering
• Windows Additions/WDDM: autoresize fixes
  

具体见：https://www.virtualbox.org/wiki/Changelog

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