This version is a major update. The following major new features were added:
- Guest SMP with up to 32 virtual CPUs (VT-x and AMD-V only)
- Windows guests: ability to use Direct3D 8/9 applications / games (experimental)
- Support for OpenGL 2.0 for Windows, Linux and Solaris guests
In addition, the following items were fixed and/or added:
- 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)
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- 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.
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