Download VirtualBox 4.1.20

While version 4.2 is still in the works, Oracle has released the tenth update for version 4.1 of VirtualBox. VirtualBox can be used to install other operating systems in a virtual environment on a computer. In this way it is possible to use different operating systems on the same hardware side by side and at the same time. VirtualBox is available for Windows XP and above, Mac OS X, Linux, and Solaris, and is capable of many guest operating systems to turn.

The VirtualBox download contains only open source components. Some features, including support for USB 2.0 ports and the remote display protocol, are closed source and can be added by installing the VirtualBox Extension Pack. This one extension is covered by a personal use and evaluation license, i.e. puel. In version 4.1.20 the following changes and improvements have been made:

The following items were fixed and/or added:

• VMM: fixed a crash under rare circumstances for VMs running without hardware virtualization
• VMM: fixed a code analysis bug for certain displacement instructions for VMs running without hardware virtualization
• VMM: fixed an interpretation bug for TPR read instructions under rare conditions (AMD-V only)
• Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs #9604, #10491)
• VBoxSVC: be more tolerant against environment variables with strange encodings (bug #8780)
• VGA: fixed wrong access check which might cause a crash under certain conditions
• NAT: final fix for crashes under rare conditions (bug #10513)
• Virtio-net: fixed the problem with receiving of GSO packets in Windows XP guests causing packet loss in host-to-VM transfers
• HPET: several fixes (bugs #10170, #10306)
• Clipboard: disable the clipboard by default for new VMs
• BIOS: the PCI BIOS was not properly detected with the chipset type set to ICH9 (bugs #9301, #10327)
• Mac OS X hosts: adaptations to Mountain Lion
• Linux Installer: fixes for Gentoo Linux (bug #10642)
• Linux guests: fixed mouse integration on Fedora 17 guests (bug #2306)
• Linux Additions: compile fixes for RHEL/CentOS 6.3 (bug #10756)
• Linux Additions: compile fixes for Linux 3.5-rc1 and Linux 3.6-rc1 (bug #10709)
• Solaris host: fixed a guru meditation while allocating large pages (bug #10600)
• Solaris host: fixed possible kernel panics while freeing memory
• Solaris Installer: fixed missing icon for menu and desktop shortcuts

VirtualBox 4.1.10 screenshot, click on the image for a larger version.