http://www.virtualbox.org/ This version is a major update. The following major new features were added: ‧ OVF (Open Virtualization Format) appliance import and export (see chapter 3.8, Importing and exporting virtual machines, page 55) ‧ Host-only networking mode (see chapter 6.7, Host-only networking, page 88) ‧ Hypervisor optimizations with significant performance gains for high context switching rates ‧ Raised the memory limit for VMs on 64-bit hosts to 16GB ‧ VT-x/AMD-V are enabled by default for newly created virtual machines ‧ USB (OHCI & EHCI) is enabled by default for newly created virtual machines (Qt GUI only) ‧ Experimental USB support for OpenSolaris hosts ‧ Shared folders for Solaris and OpenSolaris guests ‧ OpenGL 3D acceleration for Linux and Solaris guests (see chapter 4.8, Hardware 3D acceleration (OpenGL), page 70) ‧ Added C API in addition to C++, Java, Python and Web Services In addition, the following items were fixed and/or added: ‧ VMM: FreeBSD guest related fix for V86 flags (bug #2342) ‧ VMM: fixed guru meditation when booting an AsteriskNow Linux VM (bug #2342) ‧ VMM: fixed PGMPOOLKIND_FREE guru meditation (bugs #3356, #3431) ‧ VMM: fixed Windows XP boot hang (guest PAE + nested paging only) ‧ VMM: allow mixing of VT-x/AMD-V and software virtualization ‧ VMM: fixed extremely slow safe mode booting in e.g. Windows 2008 (VTx/AMD-V only) ‧ VMM: significant speedup of certain GRUB boot loaders (e.g. Solaris) (VTx/AMD-V only) ‧ VMM: real-mode IOPL fix for DOS guests (VT-x only) ‧ VMM: fixed VT-x detection with certain BIOSes that enable VT-x, but don’t set the lock bit in MSR_IA32_FEATURE_CONTROL ‧ VMM: fixed hibernation issues on Windows XP hosts (VT-x only; bug #1794) ‧ VMM: properly emulate RDMSR from the TSC MSR, should fix some NetBSD guests ‧ VMM: emulate RDPMC; fixes Windows guests crashes when using the Kaspersky virus scanner (bug #1778) ‧ NAT: fixed truncated downloads (FTP) (bug #3257) ‧ NAT: blocked UDP packets caused a crash (bug #3426) ‧ NAT: allow to configure the next server and the boot file via VBoxManage (bug #2759) ‧ IDE: fixed hard disk upgrade from XML-1.2 settings (bug #1518) ‧ Hard disk: support more VMDK file variants (including fixed-size ESX server images) ‧ Hard disks: refuse to start the VM if a disk image is not writable ‧ USB: further reduced host CPU utilization for OHCI and EHCI; the “ VBoxInternal/Devices/usbohci/0/Config/FrameRate” CFG key is no longer necessary and no longer supported ‧ USB: fixed BSOD on the host with certain USB devices (Windows hosts only; bug #1654) ‧ E1000: properly handle cable disconnects (bug #3421) ‧ VRDP: fixed hangs when VRDP server is enabled or disabled in runtime ‧ Shared folders: respect umask settings on Linux, OSX and Solaris hosts when creating files ‧ X11 guests: prevented setting the locale in vboxmouse, as this caused problems with Turkish locales (bug #3563) ‧ X11 guests: show the guest mouse pointer at the right position if the virtual desktop is larger than the guest resolution (bug #2306) ‧ Linux additions: fixed typo when detecting Xorg 1.6 (bug #3555) ‧ Solaris guests: added xpg4/xcu4 dependency to the guest additions installer (bug #3524) ‧ Windows guests: bind the VBoxMouse.sys filter driver to the correct guest pointing device (bug #1324) ‧ Windows hosts: fixed BSOD when starting a VM with enabled host interface (bug #3414) ‧ Linux hosts: do proper reference counting to prevent unloading the vboxnetflt module as long as this code is in use (bug #3104) ‧ Linux hosts: do not leave zombies of VBoxSysInfo.sh (bug #3586) ‧ Linux installers: fixes for Slackware, Arch Linux and Linux from Scratch systems ‧ Windows installers: combined installer executable which contains both (32- and 64-bit) architectures. ‧ VBoxManage: less cryptic command-line error messages ‧ VBoxManage list vms commands now default to compact format ‧ VBoxManage controlvm dvdattach did not work if the image was attached before ‧ VBoxManage: allow creation of all supported disk image variants ‧ VBoxManage showvminfo: don’t spam the release log if the additions don’t support statistics information (bug #3457) ‧ VBoxManage: big command line processing cleanup, the legacy single-dash options are deprecated and will be removed in the next major release, so switch to the new options now ‧ Hard disks: improved immutable disk support to auto-reset diff file at VM startup (related to bug #2772) ‧ GUI: enable the audio adapter by default for new VMs ‧ GUI: warn if VT-x/AMD-V is not operational when starting a 64-bit guest ‧ GUI: deactivate 64-bit guest support when the host CPU does not support VTx/AMD-V ‧ GUI: removed floppy icon from the status bar ‧ GUI: show build revision in about dialog ‧ GUI: fixed sticky status bar text ‧ GUI: improved error dialogs ‧ GUI: fail with an appropriate error message when trying to boot a read-only disk image (bug #1745) ‧ GUI/Mac OS X: fixed disabled close button ‧ GUI/Windows: re-enabled support for copy and paste (Windows hosts 2.0 regression; bug #2065) ‧ 3D support: added OpenGL select/feedback support (bug #2920) ‧ 3D support: close OpenGL subsystem for terminated guest applications (bug #3243) ‧ 3D support: fixed VM hangs when starting guests with 3D acceleration enabled (bug #3437) ‧ PXE: fixed boot hangs when hardware virtualization is used (bug #2536) ‧ LsiLogic: fixed problems with Solaris guests ‧ Main API: close machine settings XML file when unregistering machine (bug #3548) --

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