VirtualBox 3.1.0 Build 55467

What's new in this version:

- Teleportation (aka live migration); migrate a live VM session from one host to another (see chapter 7.2, Teleporting, page 104)
- 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”; see chapter 1.8, Snapshots, page 25)
- 2D video acceleration for Windows guests; use the host video hardware for overlay stretching and color conversion (see chapter 4.10, Hardware 2D video acceleration for Windows guests, page 73)
- More flexible storage attachments: CD/DVD drives can be attached to arbitrary storage controllers, and there can be more than one such drive (chapter 5, Virtual storage, page 76)
- 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; see chapter 3.12, Alternative firmware (EFI), page 58)
- Support for paravirtualized network adapters (virtio-net; see chapter 6.1, Virtual networking hardware, page 89)

In addition, the following items were fixed and/or added:
- VMM: guest SMP fixes for certain rare cases
- GUI: snapshots include a screenshot
- GUI: locked storage media can be unmounted by force
- GUI: the a log window grabbed all key events from other GUI windows (bug #5291)
- GUI: allow to disable USB filters (bug #5426)
- GUI: improved memory slider in the VM settings
- 3D support: major performance improvement in VBO processing
- 3D support: added GL_EXT_framebuffer_object, GL_EXT_compiled_vertex_array support
- 3D support: fixed crashes in FarCry, SecondLife, Call of Duty, Unreal Tournament, Eve Online (bugs #2801, #2791)
- 3D support: fixed graphics corruption in World of Warcraft (#2816)
- 3D support: fixed Final frame of Compiz animation not updated to the screen (#4653)
- 3D support: fixed incorrect rendering of non ARGB textures under compiz
- iSCSI: support iSCSI targets with more than 2TiB capacity
- VRDP: fixed occasional VRDP server crash (bug #5424)
- Network: fixed the E1000 emulation for QNX (and probably other) guests (bug #3206)
- NAT: added host resolver DNS proxy (see chapter 9.14.6, Using the host’s resolver
- as a DNS proxy in NAT mode, page 154)
- VMDK: fixed incorrectly rejected big images split into 2G pieces (bug #5523, #2787)
- VMDK: fixed compatibility issue with fixed or raw disk VMDK files (bug #2723)
- VHD: fixed incompatibility with Hyper-V
- Support for Parallels version 2 disk image (HDD) files; see chapter 5.2, Disk
- image files (VDI, VMDK, VHD, HDD), page 79
- OVF: create manifest files on export and verify the content of an optional manifest file on import
- OVF: fixed memory setting during import (bug #4188)
- Mouse device: now five buttons are passed to the guest (bug #3773)
- VBoxHeadless: fixed loss of saved state when VM fails to start
- VBoxSDL: fixed crash during shutdown (Windows hosts only)
- X11 based hosts: allow the user to specify their own scan code layout (bug #2302)
- Mac OS X hosts: don’t auto show the menu and dock in fullscreen (#bug 4866)
- Mac OS X hosts (64 bit): don’t interpret mouse wheel events as left click (#bug 5049)
- Mac OS X hosts: fixed a VM abort during shutdown under certain conditions
- Solaris hosts: combined the kernel interface package into the VirtualBox main package
- Solaris hosts: support for OpenSolaris Boomer architecture (with OSS audio backend).
- Shared folders: VBOXSVR is visible in Network folder (Windows guests, bug #4842)
- Shared folders: performance improvements (Windows guests, bug #1728)
- Windows, Linux and Solaris Additions: added balloon tip notifier if VirtualBox host version was updated and Additions are out of date
- Solaris guests: fixed keyboard emulation (bug #1589)
- Solaris Additions: fixed as_pagelock() failed errors affecting guest properties (bug #5337)
- Windows Additions: added automatic logon support for Windows Vista and Windows 7
- Windows Additions: improved file version lookup for guest OS information
- Windows Additions: fixed runtime OS detection on Windows 7 for session information
- Windows Additions: fixed crash in seamless mode (contributed by Huihong Luo)
- Linux Additions: added support for uninstalling the Linux Guest Additions (bug #4039)
- Linux guest shared folders: allow mounting a shared folder if a file of the same name as the folder exists in the current directory (bug #928)
- SDK: added object-oriented web service bindings for PHP5