خوب نسخه سه این برنامه به صورت آزمایشی از تنور در اومده و چون این نسخه به یکباره از 2.4 به سه پریده ، مشخصه که باید دچار تغییرات زیادی هم شده باشه.
سیستم میهمان اکنون قادر هست توسط فناوری VT-x و AMD-V تا 32 پردازشگر ر وپشتیبانی به عمل بیاره.
ویندوز میهمان اکنون قادر هست از دایرکت ایکس 8 و نه استفاده کنه! یعنی شما قادر هستید در لینوکس، بر روی ویندوز میهمان بازی هم کنید:)
پشتیبانی از OpenGl 2.0 برای ویندوز، لینوکس و سولاریس میهمان
یک سری تغییرات جزئی هم اعمال شده که شرحش به صورت زیر هست.
* Virtual mouse device: eliminated micro-movements of the virtual mouse
which were confusing some applications (bug #3782)
* Solaris hosts: allow suspend/resume on the host when a VM is running
(bug #3826)
* Solaris hosts: tighten the restriction for contiguous physical memory
under certain conditions
* VMM: fixed occassional guru meditation when loading a saved state
(VT-x only)
* VMM: eliminated IO-APIC overhead with 32 bits guests (VT-x only, some
Intel CPUs don’t support this feature (most do); bug #638)
* VMM: fixed 64 bits CentOS guest hangs during early boot (AMD-V only;
bug #3927)
* VMM: performance improvements for certain PAE guests (e.g. Linux 2.6.29+
kernels)
* GUI: added mini toolbar for fullscreen and seamless mode
(Thanks to Huihong Luo)
* GUI: redesigned settings dialogs
* GUI: allow to create/remove one host-only network adapters
* GUI: display estimated time for long running operations (e.g. OVF
import/export)
* GUI: Fixed rare hangs when open the OVF import/export wizards (bug #4157)
* VRDP: support Windows 7 RDP client
* Networking: fixed another problem with TX checksum offloading with Linux
kernels up to version 2.6.18
* VHD: properly write empty sectors when cloning of VHD images (bug #4080)
* VHD: fixed crash when discarding snapshots of a VHD image
* VBoxManage: fixed incorrect partition table processing when creating VMDK
files giving raw partition access (bug #3510)
* OVF: several OVF 1.0 compatibility fixes
* Shared Folders: sometimes a file was created using the wrong permissions
(2.2.0 regression; bug #3785)
* Shared Folders: allow to change file attributes from Linux guests and use
the correct file mode when creating files
* Shared Folders: fixed incorrect file timestamps, when using Windows guest on
a Linux host (bug #3404)
* Linux guests: new daemon vboxadd-service to handle time syncronization and
guest property lookup
* Linux guests: implemented guest properties (OS info, logged in users, basic
network information)
* Windows host installer: VirtualBox Python API can now be installed
automatically (requires Python and Win32 Extensions installed)
* USB: Support for high-speed isochronous endpoints has been added. In
addition, read-ahead buffering is performed for input endpoints (currently
Linux hosts only). This should allow additional devices to work, notably
webcams
* NAT: allow to configure socket and internal parameters
* Registration dialog uses Sun Online accounts now