Note: The configuration has to be deleted as the format has changed.
On Linux, issue rm -rf ~/.VirtualBox. On Windows,
remove the directory C:\Documents and
Settings\<username>\.VirtualBox. If you fail to do so,
VirtualBox will not startup. Note: Guest Additions have to be
updated
VMM: fixed a Linux 2.6 guest panic on certain P4 CPUs
VMM: performance improvements
Graphics: fixed y offset handling in dynamic resolution mode (secure labeling support)
VDI: added support for immutable independent images (part of the upcoming snapshot feature)
Additions: added VBoxControl command line utility to get/set the guest video acceleration status
Additions: video acceleration is turned off by default, use VBoxControl to enable it. It usually helps for VRDP performance.
GUI: DirectDraw support for faster display handling on Win32.
GUI: allow creation and assignment of disk images in the New VM wizard.
USB: fixed high CPU load on certain Linux distributions
VBoxSDL: fixed several secure labeling issues (crash at exit, protection against guest video modes greater than what SDL provides on the host)
VBoxManage: convert command line parameters from the current codepage to Unicode