http://download.virtualbox.org/virtualbox/4.1.0_BETA1/ VirtualBox v4.1 Beta 1 is released. VirtualBox is a general-purpose full virtualizer for x86/x64 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software. VirtualBox v4.1 Beta 1 Changelog: This version is a major update. The following major new features were added: - Support for cloning of VMs (bug #5853) - GUI: enhanced wizard for creating new virtual disks - GUI: new wizard for copying virtual disks - VMM: raised the memory limit for 64-bit hosts to 1TB - Windows guests: Experimental WDDM graphics driver - Guest Additions: modules and features now are represented as facilities to have a common interface for frontends. - New Networking Mode: UDP Tunnel. Allows to interconnect VMs running on different hosts easily and transparently, see chapter 6.2, Introduction to networking modes, page 84 In addition, the following items were fixed and/or added: - VMM: more SMP timer fixes - VMM: fixed sporadic recompiler crashes with SMP guests - VMM: many small fixes - GUI: when reverting to a snapshot, ask for taking a snapshot of the current state - GUI: added View menu - GUI: added setting for the promiscuous mode policy for internal networks, bridged networks and host-only networks - GUI: the VM description is editable during the runtime of a VM - GUI: added proxy settings (bug #2870) - VBoxManage: changed syntax of the guestcontrol command group, fixed various bugs - VBoxBalloonCtrl: new service for automatic dynamic adjustment of the balloon size for running VMs - Settings: machine names and snapshot names are not allowed to be a valid UUID - Storage: virtual CD/DVD images will be detached if the guest ejects the medium - Floppy: several bugs have been fixed - BIOS: disk-related structures are now checksummed correctly - USB: many fixes for the Windows USB host driver - NAT: reduced memory footprint - Serial: announce the serial devices in the ACPI tables to make Windows guests find the virtual hardware (bug #7411) -VRDP: support for TLS connections - VRDP: support for multimonitor client configurations with MS RDP client - 3D support: fixed GL_VERSION string for different locales (bug #8916) - Windows hosts: fixed copy’n’paste in the GUI and for the VM window (bug #4491) - Guest Additions: improved driver installation on Windows guests - Guest Additions: fixed high CPU usage while executing guest programs from the host --

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