Solaris and Mac OS X host support

Seamless windowing for Linux and Solaris guests

Guest Additions for Solaris

A webservice API (see Chapterá10, VirtualBox programming interfaces)

SATA hard disk (AHCI) controller (see Sectioná5.1, “Hard disk controllers: IDE, SATA, AHCI”)

Experimental Physical Address Extension (PAE) support

GUI: added accessibility support (508)

GUI: VM session information dialog

VBoxHeadless: renamed from VBoxVRDP

VMM: reduced host CPU load of idle guests

VMM: many fixes for VT-x/SVM hardware-supported virtualization

ATA/IDE: better disk geometry compatibility with VMware images

ATA/IDE: virtualize an AHCI controller

Storage: better write optimization, prevent images from growing unnecessarily.

Network: support PXE booting with NAT

Network: fixed the Am79C973 PCNet emulation for Nexenta guests

NAT: improved builtin DHCP server (implemented DHCPNAK response)

NAT: port forwarding stopped when restoring the VM from a saved state

NAT: make subnet configurable

XPCOM: moved to libxml2

XPCOM: fixed VBoxSVC autostart race

Audio: SoundBlaster 16 emulation

USB: fixed problems with USB 2.0 devices

Mac OS X: fixed seamless mode

Mac OS X: better desktop integration, several look'n'feel fixes

Mac OS X: switched to Quartz2D framebuffer

Mac OS X: added support for shared folders

Mac OS X: added support for clipboard integration

Solaris: added host audio playback support (experimental)

Solaris: made it possible to run VirtualBox from non-global zones

Shared Folders: many bugfixes to improve stability

Seamless windows: added support for Linux guests

Linux installer: support DKMS for compiling the kernel module

Linux host: compatibility fixes with Linux 2.6.25

Windows host: support for USB devices has been significantly improved; many additional USB devices now work

Windows Additions: automatically install AMD PCNet drivers on Vista guests

Linux additions: several fixes, experimental support for RandR 1.2

Linux additions: compatibility fixes with Linux 2.6.25