[vbox-dev] Announcement: VirtualBox 3.1 released

Frank Mehnert Frank.Mehnert at Sun.COM
Mon Nov 30 15:34:54 GMT 2009

Today Sun released VirtualBox 3.1, a major update introducing the
following major new features:

 * Teleportation (aka live migration); migrate a live VM session from
   one host to another
 * VM states can now be restored from arbitrary snapshots instead of
   only the last one, and new snapshots can be taken from other snapshots
   as well ("branched snapshots")
 * 2D video acceleration for Windows guests; use the host video hardware
   for overlay stretching and color conversion
 * More flexible storage attachments: CD/DVD drives can be attached to
   arbitrary storage controllers, and there can be more than one such
 * The network attachment type can be changed while a VM is running
 * Complete rewrite of experimental USB support for OpenSolaris hosts
   making use of the latest USB enhancements in Solaris Nevada 124 and higher
 * Significant performance improvements for PAE and AMD64 guests (VT-x and
   AMD-V only; normal (non-nested) paging)
 * Experimental support for EFI (Extensible Firmware Interface)
 * Support for paravirtualized network adapters (virtio-net)

See the Changelog at


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


We would like to thank all our Beta testers for their valuable feedback.
All changes since VirtualBox 3.1.0 Beta 3 are listed in this corresponding
forum topic:


Kind regards,

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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