* VMM: fixed 64 bits guest on 32 bits host regression in 3.0.6 (VT-x only; bug #4947)
* VMM: fixed a recompiler triple fault guru meditation (VT-x & AMD-V only; bug #5058)
* VMM: fixed hang after guest state restore (AMD-V, 32 bits Windows guest and IO-APIC enabled only; bug #5059)
* VMM: fixed paging issue with OS/2 guests
* VMM: fixed guru meditation in rare cases (2.0 regression; software virtualization only)
* VMM: fixed release assertion during state restore when using the Sound Blaster 16 emulation (bug #5042)
* Security: fixed vulnerability that allowed to execute commands with root privileges
* Linux hosts: fixed runtime assertion in semaphore implementation which was triggered under certain conditions (bug #616)
* Linux hosts: change the default USB access mode on certain distributions (bugs #3394 and #4291)
* Linux hosts: on hardened Gentoo, the VBoxSVC daemon crashed by opening the VM network settings (bug #3732)
* Linux hosts, Solaris hosts: pass the XAUTHORITY variable along the DISPLAY variable when starting a VM from VBoxManage or from the VM selector (bug #5063)
* Linux hosts: use sysfs to enumerate host drives if hal is not available
* Solaris hosts: fixed a bug which would hang the host sporadically as interrupts were not re-enabled everytime
* Solaris hosts: fixed a kernel panic with bridged and host-only networking (bug #4775)
* Solaris hosts: fixed incorrectly persistent CD/DVD-ROMs when changing them (bug #5077)
* X11-based hosts: support additional function keys on Sun keyboards (bug #4907)
* Mac OS X hosts (Snow Leopard): fixed problem starting headless VMs without a graphical session (bug #5002)
* Mac OS X hosts: fixed problem listing host-only adapter names with trailing garbage (attached VMs won't start)
* Windows Additions: now work with Vista 64-bit Home editions (bug #3865)
* Windows Additions: fixed screen corruption with ZoomText Magnifier
* Windows Additions: fixed NPGetUniversalName failure (bug #4853)
* Windows Additions: fixed Windows NT regression (bug #4946)
* Windows Additions: fixed VBoxService not running if no Shared Folders are installed
* Linux Additions: implemented ftrunctate (bug #4771)
* VRDP: start VM even if configured VRDP port is in use
* Networking: the PCnet network device stopped receiving under rare conditions (bug #4870)
* VBoxManage: implemented controlvm vrdpport command
* iSCSI: fixed issue with NetApp targets (#5072)
* SCSI: add support for virtual disks larger than 2TB
* USB: fixed potential crash when unplugging USB2 devices (bug #5089)
* NAT: IPSEC did not properly work with Linux guests (bug #4801)