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EmuCR: VirtualBoxVirtualBox v4.2 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 v4.2 Beta 1 Changelog:
VirtualBox 4.2 will be a new major release. The following major new features were added:
Improved Windows 8 support, in particular many 3D-related fixes
- GUI: VM groups (bug #288)
- GUI: expert mode for wizards
- GUI: allow to alter some settings during runtime
- Support for up to 36 network cards, in combination with an ICH9 chipset configuration (bug #8805)
- Resource control: added support for limiting network IO bandwidth; see the manual for more information
- Added possibility to start VMs during system boot on Linux, OS X and Solaris; see the manual for more information (bug #950)
- Added experimental support for Drag'n'drop from the host to Linux guests. Support for more guests and for guest-to-host is planned. (bug #81)

In addition, the following items were fixed and/or added:
- VMM: improved VM context switch performance for Intel CPUs using nested paging
- VMM: added support for FlushByASID features of AMD CPUs (Bulldozer and newer)
- VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
- VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
- VMM: support recent VIA CPUs (bug #10005)
- GUI: network operations manager
- GUI: allow taking screenshots of the current VM window content
- GUI: allow automatically sorting of the VM list
- GUI: allow starting of headless VMs from the GUI
- GUI: allow reset, shutdown and poweroff from the Manager window
- GUI: allow to globally limit the maximum screen resolution for guests
- GUI: show the full medium part on hovering the list of recently used ISO images
- GUI: do not create additional folders when a new machine has a separator character in its name (bug #6541)
- GUI: don't crash on terminate if the settings dialog is still open (bug #9973)
- Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bug #10491)
- Settings: sanitise the name of VM folders and settings file (bug #10549)
- Settings: allow to store the iSCSI initiator secret encrypted
- E1000: 802.1q VLAN support
- Storage: implemented burning of audio CDs in passthrough mode
- Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
- Storage: added support for QED images
- Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
- Storage: added readonly support for VHDX images
- Solaris additions: added support for X.org Server 1.11 and 1.12
- Windows hosts: no need to recreate host-only adapters after a VirtualBox update
- Windows hosts: updated toolchain; make the source code compatible to VC 2010 and enable some security-related compiler options

Download: VirtualBox v4.2 Beta 1
Source: Here



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