Manchegox

Sun released VirtualBox 3.1.2, a maintenance release of VirtualBox 3.1 which improves stability and fixes regressions.
See the Changelog at

http://www.virtualbox.org/wiki/Changelog

for a complete list of all changes. You can download the binaries here:

http://download.virtualbox.org/virtualbox/3.1.2/

Upload of the Linux packages is in progress, it will take some time until every package is in place.