Please do not use this VirtualBox Beta release on production machines.
A VirtualBox Beta release should be considered a bleeding-edge release
meant for early evaluation and testing purposes.

You can download the binaries here:

Please do NOT open bug reports at
but use our 'VirtualBox Beta Feedback' forum at

to report any problems with the Beta.

Version 3.1.4 will be maintenace release. The following items were fixed 
and/or added:

 * VMM: SMP stability fixes
 * VMM: fixed guru meditation in certain rare cases (bug #5968)
 * VMM: activate NXE for PAE enabled guests (VT-x and AMD-V on 32 bits
   hosts only; bug #3578)
 * VMM: added workaround for broken BIOSes that make VirtualBox think
   AMD-V is in use (for details see bug #5639)
 * VMM: fixed rare host reboot when restoring a saved state
 * VMM: turn on nested paging by default for new VMs (if available;
   VT-x and AMD-V only) 
 * VMM: turn on VPID by default for new VMs (if available; VT-x only)
 * VMM: perform strict CPUID compatibility checks when teleporting; to
   get the old behavior set "VBoxInternal/CPUM/StrictCpuIdChecks" to 0
 * VBoxManage: add restorecurrent operation to snapshots command
 * VBoxManage: fixed broken snapshot lookup by name (bug #6070
 * GUI: fixed the broken "Reload" button that reloads the machine XML
   when a machine is inaccessible
 * 3D Support: fixed SELinux warning saying requires text
   relocation (bug #5690)
 * 3D Support: fixed Corrupted surface rendering (bug #5695)
 * 3D Support: free textures on guest application termination (bug #5206)
 * Seamless: disable seamless mode when guest changes screen resolution
   (bug #5655)
 * NAT: fixed high CPU load under certain circumstances (Windows hosts only;
   bug #5787)
 * NAT: fixed handling of the broadcast flag in DHCP requests
 * Virtio-net: don't crash when ports accessed beyond the valid range
   (bug #5923)
 * LsiLogic: fix for Windows 7 guests
 * ATA: fix for guru meditation when installing Solaris 8 guests (bug #5972)
 * VHD: fixed an incompatibility with Virtual PC (bug #5990)
 * VHD: update the footer backup after setting a new UUID (bug #5004)
 * Host DVD: really fixed loading "passthrough" setting from config file
   (bug #5681)
 * Shared folders: fixed resolving of symlink target on Linux (3.1.2
 * VRDP: fixed VERR_NET_ADDRESS_IN_USE error when restarting a VM
   (3.1 regression; bug #5902)
 * PulseAudio: fixed recording (bug #4302)
 * USB: fixed a shutdown blue screen (Windows hosts only; bug #5885)
 * BIOS: fixed attribute during text scroll (bug #3407)
 * OVF: fix strange error messages on disk import errors
 * OVF: do not require write access the the .ovf file during import
   (3.1 regression; bug #5762)
 * iSCSI: fix taking snapshots of a running VM (#5849)
 * Solaris hosts: several USB fixes (including support for Apple iPod;
   bug #5873)
 * Solaris installer: fixed USB module removal and Solaris 10 "id"
   binary incompatibility
 * Guest Additions: fixed wrong guest time adjustment if the guest clock
   is ahead (3.1 regression; non-Windows guests only)
 * Linux Additions: fixed shared folders for Linux 2.6.32 guests (bug #5891)
 * Linux Additions: make the mouse driver work on Debian 5.0.3 guests again
   (3.1.2 regression, bug #5832)
 * Windows Additions: fixed malfunctioning VBoxService that broke time-sync
   (bug #5872)
 * Windows Additions: fixed uninstallation issues on 64-bit guests
 * Windows Additions: fixed some sysprep execution issues
 * X.Org Additions: never reject the saved video mode as invalid (bug #5731)
 * XFree86 Additions: accept video mode hints for the initial mode again

Thanks for your help!

Dr.-Ing. Frank Mehnert

Sitz der Gesellschaft:
Sun Microsystems GmbH, Sonnenallee 1, 85551 Kirchheim-Heimstetten
Amtsgericht München: HRB 161028
Geschäftsführer: Thomas Schröder, Wolfgang Engels, Wolf Frenkel
Vorsitzender des Aufsichtsrates: Martin Häring

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