Support for cloning of VMs (bug #5853, see the section called �Cloning virtual machines�): full clones can be created through the GUI and VBoxManage, linked clones only through VBoxManage

GUI: enhanced wizard for creating new virtual disks

GUI: new wizard for copying virtual disks

GUI: keep the aspect ratio in scale mode (Windows and OSX hosts only; bug #7822)

VMM: raised the memory limit for 64-bit hosts to 1TB

Experimental support for PCI passthrough for Linux hosts, see the section called �PCI passthrough�

Windows guests: Experimental WDDM graphics driver, supporting Windows Aero (bug #4607) and providing Direct3D support using a cleaner approach (no need to install the guest drivers in Safe Mode anymore)

Guest Additions: status of modules and features can now be queried separately by the frontends

Networking: new network attachment mode "Generic Driver", which offers an open plugin architecture for arbitrary and separately distributable virtual network implementations

Host-only Networking: fixed host crash in kernels prior to 2.6.29

New Networking Mode UDP Tunnel: allows to interconnect VMs running on different hosts easily and transparently, see the section called �Introduction to networking modes�

Experimental support for SATA hard disk hotplugging available with VBoxManage

Solaris hosts: New Crossbow based bridged networking driver for Solaris 11 build 159 and above

VMM: more SMP timer fixes

VMM: fixed sporadic recompiler crashes with SMP guests

VMM: many small fixes

GUI: when reverting to a snapshot, ask for taking a snapshot of the current state

GUI: added a View menu

GUI: added a setting for the promiscuous mode policy for internal networks, bridged networks and host-only networks

GUI: added slider for setting the CPU execution cap allowing to limit the amount of CPU time spent for the execution of the guest, see the section called �"Processor" tab�.

GUI: the VM description is editable during the runtime of a VM (bug #1551)

GUI: added proxy settings (bug #2870)

GUI: made the number of SATA ports configurable

GUI: decrease time before showing the VM configuration dialog

VBoxManage: more convenient configuration of storage controller attachments by automatically determining the port or device parameter when a storage controller has only one port or device per port

VBoxManage: changed syntax of the guestcontrol command group, fixed various bugs, removed obsolete options

VBoxBalloonCtrl: new service for automatic dynamic adjustment of the balloon size for running VMs

Settings: machine names and snapshot names are not allowed to be a valid UUID

Settings: provide better diagnostics if a single medium is used twice in a VM configuration

Settings: provide better diagnostics for errors in medium create/merge/clone operations, and fix memory leaks in error cases

Storage: ATA/SATA drives can be marked as non-rotational, i.e. the guest OS will detect them as a SSD if supported, which can improve performance

Storage: virtual CD/DVD images will be detached if the guest ejects the medium, unless the drive is marked to handle ejects only on a temporary basis

Storage: the medium UUID can be changed again when attaching a medium for the first time, which allows using images which are exact duplicates including the UUID

Storage: fixed possible data corruption under certain circumstances with VHD and Parallels images (bug #9150)

Storage: fixed unnecessary expansion when cloning differential images in VDI format

Storage: fixed detection code to handle empty files for VDI and VMDK format

Storage: fixed access to CD/DVD images beyond 4GB when using the SATA controller (bug #8592)

Floppy: several bugs have been fixed

Floppy: make it possible to unmount a host floppy disk (bug #6651)

BIOS: disk-related structures are now checksummed correctly (bug #8739)

USB: many fixes for the Windows USB host driver

NAT: reduced memory footprint

Networking: fixed the problem with segmentation offloading when several VMs are transmitting in parallel

Networking: workaround for a bug in wireshark when operating directly on a capture file created by VirtualBox

Serial: announce the serial devices in the ACPI tables to make Windows guests find the virtual hardware (bug #7411)

VRDP: support for TLS connections (see the section called �RDP encryption�

VRDP: support for multimonitor client configurations with MS RDP clients

VRDP: fixed a rare screen corruption

3D support: fixed GL_VERSION string for different locales (bug #8916)

Webservice: fixed timeout handling with HTTP 1.1 keepalive, and be more robust when connections fail

VBoxSVC: fixed regression when several clients trigger autostart simultaneously

Main: fixed incorrect handling of the medium location for media which are not file based (e.g. iSCSI), which resulted in confusing location values in many places

JAX-WS client bindings: fixed resource leak

Sources: fixed USB 2.0 support using extension packs for non-official builds

Mac OS X hosts: fixed non-VT-x mode on Lion hosts

Windows hosts: fixed copy'n'paste in the GUI and for the VM window (bug #4491)

Windows hosts (64-bit only): enabled removing of all mediums when removing a VM

Windows hosts (64-bit only): enabled live snapshot deletion

Windows hosts: use native controls in the installer (bug #5520)

Solaris hosts: fixed preemption issue with Solaris 11 hosts (builds 166 and above)

Solaris hosts: better control of USB device access on Solaris 11 hosts

Guest Additions: improved driver installation on Windows guests

Guest Additions: fixed high CPU usage while executing guest programs from the host

Solaris Additions: fixed automounting of shared folders (bug #8014)

GUI: fixed disappearing settings widgets on KDE hosts (bug #6809)

Storage: fixed hang under rare circumstances with flat VMDK images

Storage: a saved VM could not be restored under certain circumstances after the host kernel was updated (bug #8983)

Storage: refuse to create a medium with an invalid variant (for example Split2G with VDI; bug #7227)

iSCSI: pause the VM if a request times out

Snapshots: none of the hard disk attachments must be attached to another VM in normal mode when creating a snapshot

USB: fixed occasional VM hangs with SMP guests (bug #4580)

USB: proper device detection on RHEL/OEL/CentOS 5 guests (partial fix for bug #8978)

ACPI: force the ACPI timer to return monotonic values for improve behavior with SMP Linux guests (bug #8511 and others)

VRDP: fixed screen corruption under rare circumstances (bug #8977)

rdesktop-vrdp: updated to version 1.7.0

OVF: under rare circumstances some data at the end of a VMDK file was not written during export

Mac OS X hosts: Lion fixes

Mac OS X hosts: GNOME 3 fix

Linux hosts: fixed VT-x detection on Linux 3.0 hosts (bug #9071)

Linux hosts: fixed Python 2.7 bindings in the universal Linux binaries

Windows hosts: fixed leak of thread and process handles

Windows Additions: fixed bug when determining the extended version of the Guest Additions (4.0.8 regression; bug #8948)

Solaris Additions: fixed installation to 64-bit Solaris 10u9 guests (4.0.8 regression)

Linux Additions: RHEL6.1/OL6.1 compile fix

Linux Additions: fixed a memory leak during VBoxManage guestcontrol execute (bug #9068)

Mac OS X hosts: fixed incompatibility with recent Mac OS X versions in 64-bit mode (bug #8474)

Mac OS X hosts: fixed incompatibility with hosts with more than 16 cores (bug #8389)

Mac OS X hosts: fixed painting corruptions on a second monitor in 64-bit mode (bug #7606)

GUI: restored functionality to set an empty host key to disallow any host key combination (4.0.6 regression; bug #8793)

GUI: more expressive error messages for USB proxy permission problems (mainly Linux hosts; bug #8823)

VBoxManage: added controlvm screenshotpng subcommand for saving the screenshot of a running VM in PNG format

VBoxHeadless: fixed potential crash during shutdown (Windows hosts only)

NAT: built-in services use the correct Ethernet addresses in Ethernet header and in ARP requests

Host-only networking: fixed adapter reference counting

E1000: fixed rare guest crashes with Linux SMP guests (bug #8755)

SATA: fixed guest disk corruption under rare circumstances (only relevant for guests with more than 2GB RAM; bug #8826)

Storage: fixed data corruption after a snapshot was taken with asynchronous I/O enabled (bug #8498)

Floppy: several improvement

HPET: another fix for time jumps (bug #8707)

USB: use correct permissions when creating /dev/vboxusb (Linux hosts only)

USB: removed assumption that string descriptors are null-terminated (Windows hosts only)

3D support: fixed a potential crash when resizing the guest window

3D support: fixed GNOME 3 rendering under Ubuntu 11.04 and Fedora 15

Snapshots: fixed another bug which could lose entries in the media registry when restoring a snapshot (bug #8363)

Shared Folders: don't stop mounting the other valid folders if one host folder is inaccessible (4.0.6 regression)

Linux Additions: check whether gcc and make are installed before building kernel modules (bug #8795)

Solaris Additions: added support for X.Org Server 1.10

Guest Additions: fixed inappropriate Guest Additions update notification when using vendor-specific version suffixes (bug #8844)

VMM: fixed incorrect handling of ballooned pages when restoring a VMM from a saved state

VMM: don't crash on hosts with more than 64 cores / hyperthreads; implemented support for up to 256 host cores (except Windows hosts; bug #8489)

VMM: fixed guru meditation for PAE guests running on hosts without PAE (bug #8006)

VMM: fixed slow Linux guests with raw mode and recent guest kernels (bug #8726)

GUI: support host key combinations (bug #979)

GUI: fixed progress indicator (bug #7814)

GUI: show the mouse pointer while the VM is paused if the USB tablet mouse emulation is used (bug #6799)

GUI: adapt the snapshot folder as well when renaming a VM (bug #8469)

GUI: persistently remember the last folders of the disk/DVD/floppy selectors

GUI: never allow to start a VM with USB-2.0 activated if the proper extension pack is missing (bug #8182)

GUI: fixed hang/crash when opening a file dialog in an non-existing folder (bug #8673)

Snapshots: fixed a bug which could lose entries in the media registry when restoring a snapshot (bug #8363)

Snapshots: allow snapshots to be stored in the VM directory

3D support: fixed a crash if a VM was forced to terminate (Windows hosts only; bug #7133)

Storage: fixed memory leak (4.0 regression; bug #7966)

Storage: fixed access to iSCSI targets over internal network

Storage: fixed reading from disks with more than one snapshot for VHD and VMDK images with disabled host cache (bug #8408)

Storage: fixed a possible hang during VM suspend after an I/O error occurred

Storage: fixed a possible hang during VM suspend / reset (bug #8276, #8294)

Storage: automatically create a diff image when attaching a streamOptimized VMDK image to a VM

ATA/SATA: fixed automounting of virtual CD/DVD mediums with recent Linux distributions by correctly reporting the current profile as 'none' if no medium is present

Buslogic: fixed emulation for certain guests (e.g. jRockit VE)

Host-Only Networking: fixed interface creation failure on Windows hosts (4.0.4 regression; bug #8362)

Host-Only & Bridged & Internal Networking: fix for processing promiscuous mode requests by VMs, defaulting to switch behaviour

Host-Only Networking: fixed connectivity issue after resuming the host from sleep (bug #3625)

Bridged Networking: support for interface bonding on Mac OS X hosts (bug #8731)

NAT: fixed processing of ARP announcements for guests with static assigned IPs (bug #8609)

VRDP: backward compatibility with VRDPAuth external authentication library (bug #8063)

Shared Folders: don't fail to start a VM if a path is not absolute, for example when importing an OVF from a different host (bug #7941)

Audio: fixed crash under certain conditions (bug #8527)

USB: fixed a crash when plugging certain USB devices (bug #8699)

HPET: fixed time jumps when reading the counter (bug #8707)

OVF/OVA: automatically adjust disk paths if the VM name is changed on import

OVF/OVA: fix export to slow medias

OVF/OVA: automatically repair inconsistent appliances with multiple disks (bug #8253)

rdesktop-vrdp: fixed an assertion triggered under certain conditions (bug #8593)

Windows hosts: fixed occasional hangs during VM shutdown because sometimes COM was not properly uninitialized

Mac OS X hosts: prevent the mouse from leaving the VM window while captured

Mac OS X hosts: keep aspect ratio while resizing in scale mode (shift for old behaviour) (part of bug #7822)

X11 hosts: fixed Yen key support (bug #8438)

X11 hosts: fixed a regression which caused Host+F1 to pop up help instead of sending Ctrl+Alt+F1

Linux hosts / Linux Additions: mangle IPRT symbols to allow installing VirtualBox inside a VM while the Guest Additions are active (bug #5686)

Linux hosts / Linux guests: workaround for a bug in GLIBC older than version 1.11 leading to crashes under certain conditions (signed/unsigned problem with memchr on 64-bit machines)

Solaris hosts: fixed a deadlock in event semaphores that could lead to unkillable VM processes

Windows Additions: fixed Sysprep parameter handling

Windows Additions: fixed spontaneous guest reboots under certain circumstances (4.0.2 regression; bugs #8406, #8429)

Windows Additions: added auto logon support for locked workstations on legacy Windows versions

Windows Additions: fixed driver bugcheck error when handling PnP messages (4.0 regression; bug #8367)

Windows Additions: fixed memory leak in VBoxVideo

X11 Additions: added support for X.Org Server 1.10 final

Linux Additions: Linux kernel 2.6.39-rc1 fixes

Linux Additions: improved auto-run support (bug #5509)

Linux Additions: fix mouse support on SUSE 11 SP 1 guests (bug #7946)

Solaris Additions: added support for X.Org Server 1.9

Guest Additions: various bugfixes for guest control execution

Webservice: use own log file, with log rotation to limit size

VMM: fixed recompiler crashes under certain conditions (bugs #8255, #8319 and further)

VMM: fixed running 64-bit guests on 32-bit host with nested paging enabled on AMD CPUs (4.0 regression; bug #7938)

VMM: fixed timing issues / hangs for certain guests using the programmable interval timer (bugs #8033 and #8062)

VMM: large page and monitoring fixes for live snapshots (bugs #7910, #8059, #8125)

GUI: fixed error message when trying to exceed the maximum number of host network interfaces

GUI: fixed saving of changes to the metadata of an existing snapshot (bug #8145)

GUI: fixed rare crash on X11 hosts (bug #8131)

GUI: when selecting a shared folder, start the file dialog in the users home directory (bug #8017)

ExtPack: enforce the correct permissions which might be restricted by umask when creating directories (non-Windows hosts only; bug #7878)

VBoxSDL: fixed crash when starting by specifying the VM UUID (4.0 regression; bug #8342)

VBoxManage: allow savestate even if the VM is already paused

VBoxManage: fixed modifyvm --synthcpu (bug #6577)

VBoxManage: fixed hang when doing guestcontrol execute --wait-for exit and displaying process status on exit (bug #8235)

VBoxManage: decreased CPU load during guestcontrol execute --wait-for exit/stdout while waiting for the guest process to terminate (bug #7872)

VBoxManage: fixed list hostdvds/hostfloppies

VBoxManage: fixed storageattach for host DVD drives and host floppy drives

Metrics: introduced RAM/VMM base metric.

Main: improved sanity check when taking a VM screen shot (bug #7966)

Main: fixed a crash under rare circumstances if a VM failed to start

Main: fixed attaching of immutable disk images (bug #8105)

Main: fixed a crash at VM shutdown (bug #6443)

Main: fixed incorrect handling of cross-referenced medium attachments (bug #8129)

Settings: fixed truncating of big integer values (4.0 regression)

Settings: properly store the ICH9 chipset type (bug #8123)

Host-Only & Bridged Networking: fixed VBox DHCP server startup issue for Windows hosts (4.0 regression; bug #7905)

Host-Only Networking: re-create vboxnetX interfaces after vboxnetadp.ko module reload on Linux and Darwin (bugs #5934, #6341)

NAT: fixed an mbuf leak under rare circumstances (bug #7459)

ACPI: don't allow the guest to enter S4 by default and don't announce S1 and S4 in the ACPI tables if disabled (bug #8008)

Graphics card: made re-enabling disabled screens work correctly to prevent problems when X11 guests enter screen saving mode (bug #8122)

Storage: fixed write errors with snapshots if the host cache is disabled (4.0 regression; bug #8221)

ATA/SATA: fixed reset handling after ACPI suspend/resume

BusLogic: fixed hang with SMP VMs

Serial: another attempt to prevent lost characters during transmission (bug #1548)

Linux hosts/guests: Linux 2.6.38-rc1 compile fixes

Mac OS X hosts: fixed VBoxSVC crash when listing host interfaces without default gateway (64-bit hosts only; bug #7955)

Solaris/Darwin hosts: fixed VM CPU execution cap

X.Org guests: fixed a crash on X server restart (bug #8231)

X.Org guests: support X.Org Server 1.10 pre-release and Ubuntu 11.04 Alpha.

X.Org guests: Add EDID emulation in the graphics driver to prevent GNOME settings daemon changing the mode on login.

X.Org guests: never send graphics modes to the host that older VirtualBox versions can't handle.

Linux Additions: fixed a memory leak in the shared folders code if a host link is not readable (bug #8185)

Windows Additions: fixed handling of Security Attention Sequence (SAS) with VBoxGINA

GUI: don't crash if a removable host drive referenced from the VM settings vanished

GUI: fixed a crash when using the KDE4 Oxygen theme and clicked on the settings button (4.0 regression; bug #7875)

GUI: properly warn if the machine folder cannot be created (bug #8031)

GUI: several fixes for multimonitor X11 guests

ExtPack: don't make the installer helper application suid root (Linux .deb/.rpm packages only)

ExtPack: improved user experience on Vista / Windows 7 when installing an extension pack

ExtPack: fixed issue with non-ascii characters in the path name during installing an extension pack (bug #9717)

ExtPack: fixed SELinux issues on 32-bit Linux hosts

VBoxManage: Host-only interface creation and removal is now supported for all platforms except Solaris (bug #7741)

VBoxManage: fixed segmentation fault when removing non-existent host-only interface

Storage: fixed possible crashes with VMDK/VHD images with snapshots and asynchronous I/O (4.0 regression)

Storage: don't eject the physical medium if a DVD/CDROM/floppy drive is detached from a VM (bug #5825)

Storage: be more robust when a faulty guest sends ATA commands to an ATAPI device (bug #6597)

Parallels: fixed deletion of the image during suspend, pause or power off (4.0 regression)

Bridged networking: fixed host kernel panic when bridging to devices with no TX queue (4.0 regression; Linux hosts only; bug #7908)

NAT: port-forwarding rule registration respects protocol parameter (bug #8094)

E1000: fixed PXE boot issues with WDS (bug #6330)

Virtio-net: fixed the issue with TX performance in some Linux guests

ICH9: fixed VM crash (software virtualization only; bug #7885)

VGA: fixed VESA screen issue (4.0 regression; bug #7986)

Shared Folders: fixed parameter parsing when creating symbolic links, fixes 32-bit/64-bit bitness issue (bug #818)

Main: fixed crash under rare circumstances due to an invalid logging string (4.0 regression)

Main: improve error information propagation for errors preventing a VM start

Main: fixed problems with snapshots and non-ASCII characters in machine paths (bug #8024)

Webservice: now listens to localhost by default as documented (bug #6067)

Settings: do not fail loading machine settings if removeable drive attachment (host drive or image) cannot be found; with 4.0 this is much more likely when machines are moved from one host to another

Settings: fixed issue that changing a snapshot name or description was not saved to machine XML

OVF/OVA: fixed import of files created by other OVF tools (bug #7983)

rdesktop-vrdp: fix a crash during USB device enumeration (bug #7981)

Linux hosts: fixed a crash during USB device enumeration.

Linux hosts: try a bit harder to allocate memory (bug #8035; 4.0 regression)

Guest Additions: fixed parsing of parameters for guest control in VBoxService (4.0 regression; bug #8010)

Windows Guest Additions: automatic logon on Windows Vista/Windows 7 now supports unlocking previously locked workstations

Reorganization of VirtualBox into a base package and Extension Packs; see the section called �Installing VirtualBox and extension packs�

New settings/disk file layout for VM portability; see the section called �Where VirtualBox stores its files�

Major rework of the GUI (now called "VirtualBox Manager"):

VMM: support more than 1.5/2 GB guest RAM on 32-bit hosts

New virtual hardware:

Improvements to OVF support (see the section called �Importing and exporting virtual machines�):

Resource control: added support for limiting a VM's CPU time and IO bandwidth; see the section called �Limiting bandwidth for disk images�

Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images

Storage: support for resizing VDI and VHD images; see the section called �VBoxManage modifyhd�.

Guest Additions: support for multiple virtual screens in Linux and Solaris guests using X.Org server 1.3 and later

Language bindings: uniform Java bindings for both local (COM/XPCOM) and remote (SOAP) invocation APIs

VMM: Enable large page support by default on 64-bit hosts (applies to nested paging only)

VMM: fixed guru meditation when running Minix (VT-x only; bug #6557)

VMM: fixed crash under certain circumstances (Linux hosts only, non VT-x/AMD-V mode only; bugs #4529 and #7819)

GUI: add configuration dialog for port forwarding in NAT mode (bug #1657)

GUI: show the guest window content on save and restore

GUI: certain GUI warnings don't stop the VM output anymore

GUI: fixed black fullscreen minitoolbar on KDE4 hosts (Linux hosts only; bug #5449)

BIOS: implemented multi-sector reading to speed up booting of certain guests (e.g. Solaris)

Bridged networking: improved throughput by filtering out outgoing packets intended for the host before they reach the physical network (Linux hosts only; bug #7792)

3D support: allow use of CR_SYSTEM_GL_PATH again (bug #6864)

3D support: fixed various clipping/visibility issues (bugs #5659, #5794, #5848, #6018, #6187, #6570)

3D support: guest application stack corruption when using glGetVertexAttrib[ifd]v (bug #7395)

3D support: fixed OpenGL support for libMesa 7.9

3D support: fixed Unity/Compiz crashes on natty

2D Video acceleration: multimonitor support

VRDP: fixed rare crash in multimonitor configuration

VRDP: support for upstream audio

Display: fixed occasional guest resize crash

NAT: port forwarding rules can be applied at runtime

SATA: allow to attach CD/DVD-ROM drives including passthrough (bug #7058)

Floppy: support readonly image files, taking this as the criteria for making the medium readonly (bug #5651)

Audio: fixed memory corruption during playback under rare circumstances

Audio: the DirectSound backend now allows VMs to be audible when another DirectSound application is active, including another VM (bug #5578)

EFI: support for SATA disks and CDROMs

BIOS: reduce the stack usage of the VESA BIOS function #4F01 (Quake fix)

OVF/OVA: fixed export of VMs with iSCSI disks

Storage: Apple DMG image support for the virtual CD/DVD (bug #6760)

Linux host USB support: introduced a less invasive way of accessing raw USB devices (bugs #1093, #5345, #7759)

Linux hosts: support recent Linux kernels with CONFIG_DEBUG_SET_MODULE_RONX set

Guest Additions: Shared Folders now can be marked as being auto-mounted on Windows, Linux and Solaris guests

Linux Additions: Shared Folders now support symbolic links (bug #818)

Linux Additions: combined 32-bit and 64-bit additions into one file

Windows Additions: automatic logon on Windows Vista/Windows 7 is now able to handle renamed user accounts; added various bugfixes

VMM: fixed rare host crash when running 64-bit guests on 32-bit hosts (bug #7577)

VMM: fixed host reboots under rare circumstances due to NMIs triggered by active performance counters (Linux hosts in non-VT-x/AMD-V mode only; bug #4529)

VMM: fixed out of memory guru meditation for large memory guests (bug #7586)

VMM: fixed a guru meditation related to large pages

VMM: use new VT-x feature to keep the guest from hogging the CPU

Snapshots: implemented deleting the last remaining snapshot while the VM is running

GUI: perform the checks for exceeding the size limit of the host file system and for broken asynchronous I/O on older Linux kernels with ext4 / xfs file systems not only when starting the VM from scratch but also when starting from a saved state

NAT: fixed memory leak (3.2.0 regression; bugs #6918, #7353)

NAT: fixed Linux NFS root issue (bugs #7299)

Networking: fixed VM reset handling in e1000

VRDP: fixed rare crash in multimonitor configuration

Display: fixed occasional guest resize crash

Mouse: don't send relative mouse events together with absolute mouse events (3.2.10 regression; bug #7571)

Keyboard: fixes for the USB keyboard emulation; fixes for Korean keyboards

Serial: don't hang if the host device would block during open (bugs #5756, #5380)

Serial: fixed modem status lines (Linux hosts only; bug #812)

Graphics: Horizontal resolutions are no longer restricted to a multiple of 8 pixels (bug #2047; requires Guest Additions update).

USB: fixed a crash with older Linux kernels and non-ASCII characters in device strings (Linux hosts only; bug #6983, #7158, #7733; version 3.2.8 contained an incomplete fix)

USB: fixed a crash under rare circumstances (bug #7409; Windows hosts only)

"iSCSI: respond to NOP-In requests from the target immediately to avoid being disconnected if the guest is idle

3D support: fixed a crash under certain circumstances (bug #7659)

3D support: fixed crashes for GLUT based apps (bug #6848)

3D support: added missing GLX 1.3 functionality (bugs #7652, #7195)

2D Video acceleration: fixed potential deadlock when saving the VM state (bug #4124)

Windows hosts: another fix for BSODs under certain circumstances in VBoxNetFlt.sys (bug #7601)

Solaris hosts: fixed host USB DVD drive detection

Mac OS X hosts: fixed swapped keys for certain ISO keyboard types (bug #2996)

Linux hosts: added link state handling for TAP devices needed for proper operation with bridged networking on kernels 2.6.36 and above (bug #7649)

Linux hosts/guests: Linux 2.6.37 fixes

Linux Additions: properly compile the vboxvideo module if DKMS is not installed (bug #7572)

Linux Additions: fixed a memory leak when accessing non-existing files on a Shared Folders (bug #7705)

Windows Additions: skip none-mapped user accounts when enumerating user accounts for VM information

VMM: V8086 mode fix for legacy DOS/Windows guests with EMM386 (3.2.8 regression)

VMM: stability fix (bug #7342)

VMM: fixed a Guru meditation related to large pages (bug #7300)

VMM: fixed support for large pages on Linux hosts

VMM: fixed a Guru meditation for large memory 64-bit guests on 32-bit hosts with nested paging (bug #7544)

VMM: performance improvements for VMs with more than 2GB RAM (bug #6928)

GUI: fixed host key handling if the host key is set to Left Alt (Linux/Solaris hosts only; 3.2.0 regression; bug #6758)

GUI: the VM can be minimized from the mini toolbar (bug #4952)

GUI: handle Ctrl+Break properly on X11 hosts (3.2.0 regression; bug #6122)

GUI: fixed the case where the user aborted the media selector for selecting the boot hard disk from the VM wizard

GUI: added a check for Linux kernels 2.6.36 or later which are known to have the asynchronous I/O bug on ext4 / xfs file systems fixed (Linux hosts only)

OpenSolaris guests: use SATA controller by default

Storage: fixed I/O errors in the guest after compacting VDI images (3.2.6 regression; bug #7294)

Storage: automatically repair base disk images with non-zero parent UUID which made them inaccessible (bug #7289)

Storage: fixed corrupted images if a merge operation was canceled

IDE: added ATAPI passthrough support for audio CDs

SATA: fixed a potential hang during boot of recent Solaris guests

SATA: handle out of disk space and similar conditions better

iSCSI: fixed sporadic hangs when closing the connection

VGA: fixed missing redraw with multiple screens under certain circumstances (bug #7291)

VGA: serveral small fixes for legacy VGA graphics modes

Bridged networking: fixed occasional host freeze during VM shutdown (Linux hosts only)

NAT: don't check for the existence of the TFTP prefix when delivering a file via bootp (bug #7384)

NAT: fixed resolving of names at the host resolver (bug #7138)

NAT: under rare conditions the NAT engine consumed 100% CPU load (non-Windows hosts only)

VRDP: fixed memory leak under certain circumstances (bug #5966)

VRDP: fixed missing redraws with Windows guests under certain circumstances

USB: properly discard blocking outstanding bulk URBs, fixes some printers

USB: Blackberry fix (bug #6465)

VBoxHeadless: fixed event queue processing problems which led to hangs if the VM could not be started successfully

VBoxManage: don't crash if parameters with invalid characters are passed (bug #7388)

VBoxManage: clonehd: fixed a bug where the command aborted with an error message under rare circumstances

VBoxManage metrics: made it work for directly started VMs again (3.2.8 regression; bug #7482)

3D support: report GLX_ARB_get_proc_address as supported extension

3D support: guest application stack corruption when using glGetVertexAttrib[ifd]v (bug #7395)

3D support: fixed broken 3D support when switching to fullscreen/seamless modes (bug #7314)

3D support: fixed 32bit OpenGL apps under 64bit Windows XP/Vista (bug #7066)

OVF: fixed bug when exporting a VM with multiple attached disks (bug #7366)

OVF: fixed slow export for certain filesystems (bug #3719)

OVF: disabled manifest (.mf file) support; manifests are no longer verified on import nor written on export

Shared clipboard/Windows: improved the reliability of the shared clipboard on Windows hosts and guest (partial fix to bug #5266)

Shared Folders: don't show an empty directory if filenames with an invalid encoding exist on the host (bug #7349)

Shared Folders: return the proper error code when trying to list files for a non-existing wildcard (bug #7004)

Audio: fixed guest memory corruption when capturing from the NULL audio backend (bug #6911)

Audio: improved playback quality (less choppy)

Web service: avoid unnecessary creation of idle threads

Additions: fixed bug in the guest execution feature when passing more than one environment variable

Additions: refresh all guest properties written by VBoxService after the VM was restored from a saved state

Additions: fixed a division by zero crash of VBoxService under certain circumstances

Additions: immediately resynchronize the guest time with the host time after the VM was restored from a saved state (bug #4018)

Additions/Windows: fixed LsaEnumerate error when enumerating logged in users

Additions/X.Org: support X.Org Server 1.9 (bug #7306)

Additions/X.Org: don't crash VBoxClient during reboot

Solaris hosts: fixed host DVD drive enumeration on Solaris 10

Solaris hosts: added a custom core dumper to procure more data in the event of a VM crash

Solaris guests: fixed user idle detection

Solaris guests: fixed a possible panic in Shared Folders when using the wrong user or group IDs (bug #7295)

Solaris guests: fixed Shared Folders from truncating files to 2GB on 32-bit guests (bug #7324)

Windows hosts: fixed a BSOD under certain circumstances in VBoxNetFlt.sys (bug #7448)

Linux hosts/guests: Linux 2.6.36 fixes

Linux hosts/guests: DKMS fixes (bug #5817)

Mac OS X hosts: fixed missing dock menu entries (bug #7392)

VMM: properly terminate the VM with an error if the guest is trying to switch to the PAE mode but PAE is disabled in the VM settings

GUI: switch to native file dialogs (Windows hosts only; bug #5459)

GUI: don't use native file dialogs on KDE hosts (Linux hosts only; bug #6809)

3D support: fixed GL_EXT_texture_sRGB support

PXE: fixed ZENworks PXE boot regression

OVF: fixed slower export and larger images under certain circumstances (3.2.6 regression; bug #7073)

USB: properly signal an interrupt if the port suspend status changes

USB: respect the remote-only filter

USB: avoid VM hang when changing the configuration of certain devices (Windows hosts only)

USB: fix a crash with older Linux kernels and non-ASCII characters in device strings (Linux hosts only; bug #6983)

PageFusion: fixed conflict with the guest execution feature

PageFusion: fixed stability issues with a large number of VMs

PageFusion: fixed host crashes with guest SMP and Win64 guests

Memory ballooning: fixed problems restoring VMs with pre-allocation enabled

Bridged networking: fixed performance issue with GRO enabled on bridged device (bug #7059)

Hostonly networking: fixed performance issue (3.2.6 regression; bug #7081)

Hard disks: fix auto-reset of immutable disk at VM startup (bug #6832)

BusLogic: several fixes for Windows NT/2000 and SCO OpenServer guests

LsiLogic: fixed I/O errors under rare circumstances

Sharing disks: support for attaching one disk to several VMs without external tools and tricks

Shared Folders: several fixes and performance enhancements for Solaris guests (bugs #4154 and #6512)

Solaris Installer: added support for remote installations

Guest Properties API: correctly support enumerating the properties of a running VM with an empty "patterns" field (bug #7171)

Guest properties: properly delete transient properties on shutdown

VRDP video redirection performance improvements and stability fixes

Settings: silently fix host audio driver when reading machine XML settings files or OVF written by VirtualBox on a different host OS, for example convert DirectSound to PulseAudio (bug #7209)

Settings: properly store the NAT network setting in XML settings file version 1.10 and later (bug #6176)

VBoxManage: handle differencing images with parent UUID correctly in subcommand openmedium disk (bug #6751)

Web service: enabled HTTP keepalive for much better performance

Web service: added timestamps to logging output

Web service: treat 8-bit strings as UTF-8 not ASCII

X11 Additions: fix for Xorg 6.8 guests (e.g. RHEL4)

VMM: fixed host crash when running 64-bit guests on 32-bit hosts with certain Intel CPUs (VT-x only; bug #6166)

VMM: allow 64-bit SMP guests on 32-bit hosts (VT-x and AMD-V only; does not apply to Mac OS X, which already supports it)

VMM: fixed Guru mediation if guests with more than 2GB are booted with VT-x/AMD-V disabled (bug #5740)

VMM: fixed TR limit trashing (VT-x and 64-bit host only; bug #7052)

Page Fusion: several bug fixes for SMP guests (including bug #6964)

Teleportation: several fixes and improvements

Mac OS X server guests: compatibility fix

EFI: fixed memory detection for guests with 2GB or more RAM assigned

GUI: added a workaround for a Linux kernel bug which affecting asynchronous I/O on ext4 / xfs file systems (Linux hosts only)

GUI: added setting for multiple VRDP connections; useful if multiple screens are enabled

GUI: another fix for the keyboard capturing bug under metacity (bug #6727)

GUI: fixed quit dialog when used in seamless or fullscreen mode (Mac OS X hosts only; bug #6938)

GUI: handle the extra key on the Brazilian keyboard on X11 hosts again (bug #7022).

2D Video acceleration: fixed crashes when leaving the fullscreen mode (bug #6768)

VBoxManage: fixed storageattach error handling (bug #6927)

VBoxManage: fixed dhcpserver add (3.2.0 regression; bug #7031)

Storage: fixed hang with images located on filesystems which don't support asynchronous I/O (bug #6905)

Storage: fixed raw disks on Windows hosts (3.2.0 regression; bug #6987)

LsiLogic: fixed hang with older Linux guests

BusLogic: fixed hang during I/O

SATA: set initial number of ports to 1 as some guests can't handle 30 ports (e.g. CentOS 4 and FreeBSD; bug #6984)

SATA: performance improvement

SCSI: fixed error when using the full format option during Windows installation (bug #5101)

iSCSI: fixed authentication (bug #4031)

Host-only/bridged networking: fixed excessive host kernel warnings under certain circumstances (Linux hosts only; 3.2.0 regression; bug #6872)

NAT: fixed potential memory leaks

NAT: increased the size of the memory pool for 16K Jumbo frames (performance tweak)

NAT: allow to link/unlink the network cable even if the VM is currently paused

E1000: disconnect cable was not properly handled if the NIC was not yet initialized by the guest

OVF: export performance optimization

OVF: upgraded OS type definitions to CIM 2.25.0 so that Windows 7 and other OSes are now tagged correctly on export

Settings: the setting for disabling the host I/O cache was sometimes not properly saved

Settings: save machine state into XML correctly even when snapshot folder has been changed to a non-default location (bug #5656)

USB: allow the guest to disable an EHCI port

USB: find a valid language ID before querying strings (bug #7034)

POSIX hosts: fixed several memory leaks (3.2.0 regression)

Solaris hosts: fixed VDI access problem under certain circumstances (IDE/SATA; 3.2.0 regression)

Solaris hosts: fixed VM fails to start on 32-bit hosts (3.2.0 regression; bug #6899)

Windows hosts (32-bit): increase guest RAM limit if the host kernel allows for more virtual address space

Linux Additions: re-read a directory after a file was removed (bug #5251)

Linux Additions: install the DRI driver in the right location on ArchLinux guests (bug #6937)

X11 Additions: fixed spurious mouse movement events (bug #4260)

Solaris Additions: fixed guest execution feature

Windows Additions: automatic logon on Windows Vista/Windows 7 is now able to handle renamed and principal user accounts; added various bugfixes

Windows Additions: improved command line parsing of the installer

Windows Additions: fixed driver verifier bugcheck in VBoxMouse (bug #6453)

3D support: fixed OpenGL support for 32bit applications under 64bit Windows guests

GUI: fixed superfluous resize-event on powering-on VM for X11 (improvement for the 3.2.2 fix)

GUI: fixed keyboard capturing bug under metacity (bug #6727)

Host-only/bridged networking: fixed guest-to-guest communication over wireless (3.2.0 regression; bug #6855)

Storage: fixed a potential guest disk corruption with growing images (3.2.0 regression)

Page Fusion: fixed shared module detection for Win64 guests

3D support: allow use of CR_SYSTEM_GL_PATH again (bug #6864)

3D support: fixed a host assertion for some multi-threaded guest applications (bug #5236)

3D support: fixed host crashes with nVIDIA drivers on WDDM startup

OVF: fixed import of OVFs with a VM description (annotation) (3.2.2 regression; bug #6914)

VRDP: fixed issues with secondary monitors (bug #6759)

VMM: fixed rare invalid guest state guru meditation (VT-x only)

VMM: fixed poor performance with nested paging and unrestricted guest execution (VT-x only; bug #6716)

VMM: fixed occasional guru meditation during Windows 7 bootup (bug #6728)

GUI: keep the status for remote control in sync with the actual state

GUI: don't exit after a successful refresh of an invalid VM configuration

GUI: fixed keyboard capturing bug under metacity (bug #6727)

GUI: fixed crash during VM termination if a modal dialog is open

GUI: default controllers names of New VM Wizard are synchronized with VM settings

GUI: fixed superfluous resize-event on powering-on VM for X11

GUI: fixed regression - missed USB item's tool-tip of USB devices menu

GUI: Activate VM window on mouse-hovering for multi-monitor VMs

VBoxSDL/Linux hosts: automated keyboard type detection (bug #5764)

SATA: fixed crash during VM suspend under rare circumstances

SATA: fixed crash during VM reset after a snapshot was taken

Storage: fixed sporadic hang of SMP guests using SATA or LSI Logic SCSI and asynchronous I/O

Virtio-net: fix for guests with more than about 4GB RAM (bug #6784)

Page Fusion: fixed VBoxService crash with enabled Page Fusion on Win64 guests

Page Fusion: added kernel module sharing

HGCM: fixed memory leak which showed up if the Guest Additions were accessing a non-existing HGCM service

Teleportation: several fixes

Floppy: don't disable the host I/O cache by default

USB: fixed 3.1 regression with certain devices (e.g. iPhone); Windows host only

Serial: updated the guest device emulation to 16550A and reduced the probability for losing bytes during transmission (bug #1548)

NAT: re-fetch the name server parameters from the host on guest DHCP requests to handle host network switches more gracefully (bug #3847)

NAT: fixed parsing of IPv4 addresses in CIDR notation (bug #6797)

NAT: limit the number of name servers passed to the guest to four (non-Windows hosts only; bug #4098)

NAT: fixed DNS transaction ID mismatch (bug #6833)

VDE: fixed changing the attachment during runtime

Bridged networking: fixed memory leak in the Bridged Networking driver for Windows hosts (bug #6824)

Windows Additions: fix for NT4 guests (bug #6748)

Windows Additions: re-introduced system preparation feature

Linux guests: enable PAE for RedHat guests by default

Linux guests: fix support for disabling mouse integration (bug #6714)

Webservice: fixed a rare crash when calling IGuest methods from the webservice

OVF: fixed wrong hard disk UUIDs on export (bug #6802)

OVF: fixed 3.2.0 regression importing legacy OVF 0.9 files

3D support: fixed OpenGL support for 64bit applications on windows guests

3D support: fixed various host crashes (bugs #2954, #5713, #6443)

Following the acquisition of Sun Microsystems by Oracle Corporation, the product is now called "Oracle VM VirtualBox" and all references were changed without impacting compatibility

Experimental support for Mac OS X Server guests (see the section called �Mac OS X Server guests�)

Memory ballooning to dynamically in- or decrease the amount of RAM used by a VM (64-bit hosts only) (see the section called �Memory ballooning�)

Page Fusion automatically de-duplicates RAM when running similar VMs thereby increasing capacity. Currently supported for Windows guests on 64-bit hosts (see the section called �Page Fusion�)

CPU hot-plugging for Linux (hot-add and hot-remove) and certain Windows guests (hot-add only) (see the section called �CPU hot-plugging�)

New Hypervisor features: with both VT-x/AMD-V on 64-bit hosts, using large pages can improve performance (see the section called �Nested paging and VPIDs�); also, on VT-x, unrestricted guest execution is now supported (if nested paging is enabled with VT-x, real mode and protected mode without paging code runs faster, which mainly speeds up guest OS booting)

Support for deleting snapshots while the VM is running

Support for multi-monitor guest setups in the GUI for Windows guests (see the section called �Display settings�)

USB tablet/keyboard emulation for improved user experience if no Guest Additions are available (see the section called �"Motherboard" tab�)

LsiLogic SAS controller emulation (see the section called �Hard disk controllers: IDE, SATA (AHCI), SCSI, SAS�)

VRDP video acceleration (see the section called �VRDP video redirection�)

NAT engine configuration via API and VBoxManage

Use of host I/O cache is now configurable (see the section called �Host I/O caching�)

Guest Additions: added support for executing guest applications from the host system (replaces the automatic system preparation feature; see the section called �Guest control�)

OVF: enhanced OVF support with custom namespace to preserve settings that are not part of the base OVF standard

VMM: fixed Windows 2000 guest crash when configured with a large amount of RAM (bug #5800)

Linux/Solaris guests: PAM module for automatic logons added

GUI: guess the OS type from the OS name when creating a new VM

GUI: added VM setting for passing the time in UTC instead of passing the local host time to the guest (bug #1310)

GUI: fixed seamless mode on secondary monitors (bugs #1322 and #1669)

GUI: offer to download the user manual in the OSE version (bug #6442)

GUI: allow to set an empty host key to disallow any host key combination (bug #684)

GUI: allow to restrict the possible actions when shutting down the VM from the GUI

Main: allow to start a VM even if a virtual DVD or floppy medium is not accessible

Settings: be more robust when saving the XML settings files

Mac OS X: rewrite of the CoreAudio driver and added support for audio input (bug #5869)

Mac OS X: external VRDP authentication module support (bug #3106)

Mac OS X: moved the realtime dock preview settings to the VM settings (no global option anymore). Use the dock menu to configure it

Mac OS X: added the VM menu to the dock menu

3D support: fixed corrupted surface rendering (bug #5695)

3D support: fixed VM crashes when using ARB_IMAGING (bug #6014)

3D support: fixed assertion when guest applications uses several windows with single OpenGL context (bug #4598)

3D support: added GL_ARB_pixel_buffer_object support

3D support: added OpenGL 2.1 support

3D support: fixed Final frame of Compiz animation not updated to the screen (Mac OS X only) (bug #4653)

3D support: fixed blank screen after loading snapshot of VM with enabled Compiz

Added support for Virtual Distributed Ethernet (VDE) (Linux hosts only; see the section called �Introduction to networking modes�)

Added support for virtual high precision event timer (HPET)

OVF: fixed mapping between two IDE channels in OVF and the one IDE controller in VirtualBox

OVF: fix VMDK format string identifiers and sort XML elements from rasd: namespace alphabetically as prescribed by standard

VBoxShell: interactive Python shell extended to be fully functional TUI for VirtualBox

Linux Additions: support Fedora 13 (bug #6370)

VBoxManage: fixed overly strict checks when creating a raw partition VMDK (bugs #688, #4438)

VMM: fixed crash with the OpenSUSE 11.3 milestone kernel during early boot (software virtualization only)

VMM: fixed invalid state during teleportation

VMM: fixed OS/2 guest crash with nested paging enabled

VMM: fixed massive display performance loss (AMD-V with nested paging only)

GUI: fixed off-by-one bug when passing absolute mouse coordinates to the guest (3.1.6 regression)

GUI: show the real version of the Guest Additions, not the interface version

GUI: when adding a DVD or floppy slot in the VM mass storage settings dialog, don't attach a random medium but just leave the slot empty

GUI: added --seamless and --fullscreen command line switches (bug #4220)

GUI: fixed a SEGFAULT under rare circumstances

2D Video acceleration: fixed display issues when working with non 32-bit modes (bugs #6094 & #6208)

LsiLogic: fixed detection of hard disks attached to port 0 when using the drivers from LSI

ATA: fixed sporadic crash with Linux guests when having a hard disk and DVD drive on the same channel (bug #6079)

Network: allow to start a VM even if not all network adapters are attached

Network: promiscuous mode support for e1000 and paravirtualized adapters (bug #6519)

NAT: fixed ICMP latency (non-Windows hosts only; bug #6427)

SCSI: fixed guest crashes under certain circumstances when booting from SCSI devices

VBoxManage: fixed several bugs in cloning of images (one of them is bug #6408)

VBoxManage: fixed modifyvm --natnet default

Solaris hosts: fixed a kernel panic when bridged networking might fail to initialize

Solaris hosts: fixed priority tagged VLAN packets in bridged networking

Shared Folders: fixed issue with copying read-only files (Linux guests only; bug #4890)

Shared Folders: renamed the guest kernel module from vboxvfs to vboxsf to make it load on demand by the Linux kernel. Fixes mounting from /etc/fstab in Ubuntu 10.04

Shared Folders: fixed setuid file permissions (Solaris guests only)

Shared Folders: fixed deleting directories recursively (Solaris guests only; bug #6513)

Guest Additions: support seamless and dynamic resizing on certain older X11 guests (bug #5840)

Solaris Additions: fixed OpenGL library dependencies (bug #6435)

Keyboard/Mouse emulation: fixed handling of simultaneous mouse/keyboard events under certain circumstances (bug #5375)

Mouse emulation: never switch straight back from Explorer to IntelliMouse mode as it confuses the FreeBSD mouse driver (bug #6488)

SDK: fixed memory leak in IDisplay::takeScreenShotSlow() (bug #6549)

3D support: fixed Final frame of Compiz animation not updated to the screen (Mac OS X only) (bug #4653)

VRDP: allow to bind to localhost only on Mac OS X (bug #5227)

Linux hosts: add host USB support for Ubuntu 10.04 and other hosts without the hal daemon or usbfs (bug #6343)

webservice: more structs and array fixes in PHP bindings

Windows hosts: make the bridged networking driver notify dll be correctly unregistred on uninstall (bug #5780)

Linux hosts: fixed timing issue on hosts with Linux kernels 2.6.31 or later with certain CPUs (asynchronous timer mode; bug #6250)

Linux hosts: properly handle host suspend/resume events on Linux kernels 2.6.30 or later (bug #5562)

Mac OS X hosts: fixed VBoxSVC crash while enumerating the host network interfaces under certain circumstances

Snapshots: fixed image corruption after snapshot merge under certain circumstances (bug #6023)

Snapshots: fixed crash with VBoxHeadless / OSE

VMM: fixed reference counting guru meditation (bug #4940)

VMM: improved guest SMP stability

VMM: fixed VT-x hardware debug issues (bugs #477 & #5792)

VMM: fixed PGMDynMapHCPage guru meditation (Mac OS X; VT-x only; bug #6095)

VMM: fixed pgmPoolTrackFlushGCPhysPTInt guru meditations (Mac OS X; VT-x only; bugs #6095 & #6125)

VMM: fixed host crash when running PAE guests in VT-X mode (Mac OS X only; bug #5771)

GUI: fix displaying of error message (bug #4345)

GUI: fix inability to enter seamless mode (bugs #6185, #6188)

3D support: fixed assertion and flickering when guest application uses several windows with a single OpenGL context (bug #4598)

3D support: fixed host crashes when using GL_EXT_compiled_vertex_array and array element calls (bug #6165)

3D support: fixed runtime linker errors with OpenGL guest libs (bug #5297)

3D support: fixed OpenGL extension viewer crash on startup (bug #4962)

NAT: fixed a 3.1.4 regression on Windows hosts where graceful connection termination was broken (bug #6237)

NAT: alternative network setting was not stored persistent (bug #6176)

NAT: fixed memory corruption during ICMP traffic under certain circumstances

Network: allow to switch the host interface or the internal network while a VM is running (bug #5781)

VHD: fix for images with a block size different than 2MB

USB: fixed filtered device attach regression (bug #6251)

USB: fixed crash in OHCI under rare circumstances (bug #3571)

VRDP: fixed hang under rare circumstances when attaching USB devices

ACPI: prevent guest freezes when accessing /proc/acpi for determining the state of the host battery and the AC adapter (Linux hosts only; bug #2836)

PulseAudio: fixed guest freezes under certain conditions (3.1.4 regression; bug #6224)

BIOS: increased space for DMI strings

BIOS: fixed interrupt routing problem for certain configurations (I/O-APIC enabled, ACPI not used; bug #6098)

iSCSI: be more robust when handling the INQUIRY response

iSCSI: be more robust when handling sense data

BusLogic: fixed FreeBSD guests

webservice: vboxwebsrv is now multithreaded

webservice: fixed handling of structs and arrays in PHP bindings

Solaris Installer: fixed netmask to stay persistent across reboots for Host-only interface (bug #4590)

Linux installer: removed external dependency to libpng12.so (bug #6243)

Solaris Additions: fixed superfluous kernel logging (bug #6181)

Linux Additions: fixed hang when starting the X server in Fedora12 guests and in guests with Linux 2.6.33 or later (bug #6198)

Linux Additions: support Mandriva speedboot runlevel (bug #5484)

Linux Additions: fixed SELinux security context of mount.vboxsf (bug #6362)

Linux Additions: support Ubuntu 10.04 (bug #5737)

Web service: update PHP bindings to fix problems with enums and collections

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 (bug #3945)

VMM: fixed incompatibility with 2.6.32 Linux kernels (software virtualization only; bug #6100)

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

VMM: fixed VM crash with certain 16 bits Windows applications (software virtualization only; bug #5399)

Snapshots: fixed a 3.1 regression that broke deletion of snapshots when a machine had immutable or writethrough storage attached (bug #5727)

Saved state: fixed VERR_SSM_LOADED_TOO_MUCH error when loading DisplayScreenshot(bug #6162)

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

GUI: fixed guest fullscreen mode after reboot (bug #5372)

GUI: handle Ctrl+Break properly on X11 hosts (bug #6122)

GUI: fixed status LEDs for storage devices

GUI: workaround for disabling the seamless mode on KDE hosts (KWin bug)

3D support: fixed SELinux warning saying VBoxOGL.so requires text relocation (bug #5690)

3D support: fixed Corrupted surface rendering (bug #5695)

3D support: free textures on guest application termination (bug #5206)

3D support: fixed ubigraph_server crashes (bug #4674)

3D support: fixes for 64-bit Solaris guests

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

NAT: fixed rare crash due to an assertion in the ICMP code (bug #3217)

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 configuration file (bug #5681)

Shared Folders: fixed resolving of symlink target on Linux (3.1.2 regression)

VRDP: fixed VERR_NET_ADDRESS_IN_USE error when restarting a VM (3.1 regression; bug #5902)

VRDP: fixed crash on Mac OS X when 3D is enabled (3.1 regression)

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 to the .ovf file during import (3.1 regression; bug #5762)

iSCSI: fix taking snapshots of a running VM (bug #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

VMM: fixed SMP stability regression

USB: fixed USB related host crashes on 64 bits Windows hosts (bug #5237)

Main: wrong default HWVirtExExclusive value for new VMs (bug #5664)

Main: DVD passthrough setting was lost (bug #5681)

VBoxManage: iSCSI disks do not support adding a comment (bug #4460)

VBoxManage: added missing --cpus and --memory options to OVF --import

GUI: fixed VBox URL in update dialog for German and Dutch languages

GUI: NLS updates

OVF: fixed export of non standard storage controller names (bug #5643)

Solaris hosts: several USB fixes (including support for Apple iPhone)

Mac OS X hosts: several fixes for the 3D support

Mac OS X hosts: re-enabled CMD+Key combinations, even if the Host-Key isn't CMD (bug #5684)

Mac OS X hosts: fixed to fast scrolling if the mouse wheel is used inside the guest (bug #5672)

Mac OS X hosts: dock & menubar don't disappear in fullscreen when the VM is not running on the primary display (bug #1762)

Mac OS X hosts: added an option for enabling "Auto show Dock & Menubar in fullscreen" (bug #5636)

Windows host installer: fixed starting VBox with wrong privileges right after installation (bug #4162)

Host interface and host-only networking: prevent driver from unloading while a VM is still active (Windows host only)

Host-only networking: fixed host-only interface creation (Windows host only) (bug #5708)

Virtio-net: don't crash without an attached network

Virtio-net: fixed the issue with intermittent network in VM with several virtual CPU cores

NAT: fixed port-forwarding regressions (bug #5666)

NAT: fixed crash under certain conditions (bug #5427)

NAT: fixed resolving of names containing a slash or underscore when using the host resolver DNS proxy (bug #5698)

ATA: fixed sporadic crash when resuming after a VM was forcefully paused (e.g. due to iSCSI target being unavailable)

SATA: fixed raw vmdk disks (bug #5724)

Linux guests: increased the default memory for Redhat and Fedora guests

Linux Guest Additions: fixed installation on RHEL 3.9 guests and on some 64bit guests

Linux Guest Additions: prevent SELinux warnings concerning text relocations in VBoxOGL.so (bug #5690)

X11 guests: fixed mouse support for some Xorg 1.4 guests (openSUSE 11.0)

X11 guests: fixed xorg.conf modification for some older Xorg releases (openSUSE 11.1)

Windows guests: fixed some VBoxService shutdown issues

Windows guests: fixed VBoxVideo spinlock issues on NT4

Windows Guest Additions: fixed uninstallation issues of NT4

Shared Folders: fixed resolving of symlink target (bug #5631)

2D Video acceleration: delay loading of OpenGL dlls for Windows hosts to avoid GUI crashes on misconfigured systems

2D Video acceleration: fixed issues with video picture not displayed on playback

Teleportation (aka live migration); migrate a live VM session from one host to another (see the section called �Teleporting�)

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 the section called �Snapshots�)

2D video acceleration for Windows guests; use the host video hardware for overlay stretching and color conversion (see the section called �Hardware 2D video acceleration for Windows guests�)

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)

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 the section called �Alternative firmware (EFI)�)

Support for paravirtualized network adapters (virtio-net; see the section called �Virtual networking hardware�)

VMM: guest SMP fixes for certain rare cases

GUI: snapshots include a screenshot

GUI: locked storage media can be unmounted by force

GUI: the 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 (bug #2816)

3D support: fixed Final frame of Compiz animation not updated to the screen (bug #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 the section called �Using the host's resolver as a DNS proxy in NAT mode�)

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 the section called �Disk image files (VDI, VMDK, VHD, HDD)�

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

VMM: reduced IO-APIC overhead for 32 bits Windows NT/2000/XP/2003 guests; requires 64 bits support (VT-x only; bug #4392)

VMM: fixed double timer interrupt delivery on old Linux kernels using IO-APIC (caused guest time to run at double speed; bug #3135)

VMM: re-initizalize VT-x and AMD-V after host suspend or hibernate; some BIOSes forget this (Windows hosts only; bug #5421)

VMM: fixed loading of saved state when RAM preallocation is enabled

BIOS: ignore unknown shutdown codes instead of causing a guru meditation (bug #5389)

GUI: never start a VM on a single click into the selector window (bug #2676)

Serial: reduce the probability of lost bytes if the host end is connected to a raw file

VMDK: fixed handling of split image variants and fix a 3.0.10 regression (bug #5355)

VRDP: fixed occasional VRDP server crash

Network: even if the virtual network cable was disconnected, some guests were able to send / receive packets (E1000; bug #5366)

Network: even if the virtual network cable was disconnected, the PCNet card received some spurious packets which might confuse the guest (bug #4496)

Shared Folders: fixed changing case of file names (bug #2520)

Windows Additions: fixed crash in seamless mode (contributed by Huihong Luo)

Linux Additions: fixed writing to files opened in O_APPEND mode (bug #3805)

Solaris Additions: fixed regression in Guest Additions driver which among other things caused lost guest property updates and periodic error messages being written to the system log

VMM: guest SMP stability fixes

VMM: fixed guru meditation with nested paging and SMP guests (bug #5222)

VMM: changed VT-x/AMD-V usage to detect other active hypervisors; necessary for e.g. Windows 7 XP compatibility mode (Windows & Mac OS X hosts only; bug #4239)

VMM: guru meditation during SCO OpenServer installation and reboot (VT-x only; bug #5164)

VMM: fixed accessed bit handling in certain cases (bug #5248)

VMM: fixed VPID flushing (VT-x only)

VMM: fixed broken nested paging for 64 bits guests on 32 bits hosts (AMD-V only; bug #5285)

VMM: fixed loading of old saved states/snapshots (bug #3984)

Mac OS X hosts: fixed memory leaks (bug #5084)

Mac OS X hosts (Snow Leopard): fixed redraw problem in a dual screen setup (bug #4942)

Windows hosts: installer updates for Windows 7

Solaris hosts: out of memory handled incorrectly (bug #5241)

Solaris hosts: the previous fix for #5077 broke the DVD host support on Solaris 10 (VBox 3.0.8 regression)

Linux hosts: fixed module compilation against Linux 2.6.32rc4 and later

Guest Additions: fixed possible guest OS kernel memory exhaustion

Guest Additions: fixed stability issues with SMP guests

Windows Additions: fixed color depth issue with low resolution hosts, netbooks, etc. (bug #4935)

Windows Additions: fixed NO_MORE_FILES error when saving to shared folders (bug #4106)

Windows Additions: fixed subdirectory creation on shared folders (bug #4299)

Linux Additions: sendfile() returned -EOVERFLOW when executed on a shared folder (bug #2921)

Linux Additions: fixed incorrect disk usage value (non-Windows hosts only)

Linux installer: register the module sources at DKMS even if the package provides proper modules for the current running kernel

3D support: removed invalid OpenGL assertion (bug #5158)

Network: fixed the Am79C973 PCNet emulation for QNX (and probably other) guests (bug #3206)

VMDK: fix handling of split image variants

VHD: do not delay updating the footer when expanding the image to prevent image inconsistency

USB: stability fix for some USB 2.0 devices

GUI: added a search index to the .chm help file

GUI/Windows hosts: fixed CapsLock handling on French keyboards (bug #2025)

Shared clipboard/X11 hosts: fixed a crash when clipboard initialisation failed (bug #4987)

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 every time

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 (bug #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)

VMM: fixed IO-APIC overhead for 32 bits Windows NT, 2000, XP and 2003 guests (AMD-V only; bug #4392)

VMM: fixed a Guru meditation under certain circumstances when enabling a disabled device (bug #4510)

VMM: fixed a Guru meditation when booting certain Arch Linux guests (software virtualization only; bug #2149)

VMM: fixed hangs with 64 bits Solaris & OpenSolaris guests (bug #2258)

VMM: fixed decreasing rdtsc values (AMD-V & VT-x only; bug #2869)

VMM: small Solaris/OpenSolaris performance improvements (VT-x only)

VMM: cpuid change to correct reported virtual CPU ID in Linux

VMM: NetBSD 5.0.1 CD hangs during boot (VT-x only; bug #3947)

Solaris hosts: worked around an issue that caused the host to hang (bug #4486)

Solaris hosts: fixed a rare host system deadlock when using bridged networking

Solaris hosts: fixed a potential host system deadlock when CPUs were onlined or offlined

Solaris hosts installer: added missing dependency for UTF-8 package (bug #4899)

Linux hosts: don't crash on Linux PAE kernels < 2.6.11 (in particular RHEL/CentOS 4); disable VT-x on Linux kernels < 2.6.13 (bug #1842)

Linux/Solaris hosts: correctly detect keyboards with fewer keys than usual (bug #4799)

Mac OS X hosts: prevent password dialogs in 32 bits Snow Leopard

Python WS: fixed issue with certain enumerations constants having wrong values in Python webservices bindings

Python API: several threading and platform issues fixed

Python shell: added exportVM command

Python shell: various improvements and bugfixes

Python shell: corrected detection of home directory in remote case

OVF: fixed XML comment handling that could lead to parser errors

Main: fixed a rare parsing problem with port numbers of USB device filters in machine settings XML

Main: restrict guest RAM size to 1.5 GB (32 bits Windows hosts only)

Main: fixed possible hang during guest reboot (bug #3792)

GUI: fixed rare crash when removing the last disk from the media manager (bug #4795)

VBoxManage: fixed guestproperty for Mac OS X hosts (bug #3806)

VBoxManage: fixed setting guest properties with --flags or -flags

Webservice: fixed a severe memory leak, at least on platforms using XPCOM

Serial: fixed host mode (Solaris, Linux and Mac OS X hosts; bug #4672)

VRDP: Remote USB Protocol version 3

SATA: fixed hangs and BSODs introduced with 3.0.4 (bugs #4695, #4739, #4710)

SATA: fixed a bug which prevented Windows 7 from detecting more than one hard disk

SATA/SCSI: fixed rare random guest crashes and hangs

SCSI: fixed problem with Fedora 11 refusing to boot after kernel update

iSCSI: fix logging out when the target has dropped the connection, fix negotiation of parameters, fix command resend when the connection was dropped, fix processing SCSI status for targets which do not use phase collapse

BIOS: fixed a bug that caused the OS/2 boot manager to fail (2.1.0 regression, bug #3911)

PulseAudio: don't hang during VM termination if the connection to the server was unexpectedly terminated (bug #3100)

Mouse: fixed weird mouse behaviour with SMP (Solaris) guests (bug #4538)

HostOnly Network: fixed failure in CreateHostOnlyNetworkInterface() on Linux (no GUID)

HostOnly Network: fixed wrong DHCP server startup while hostonly interface bringup on Linux

HostOnly Network: fixed incorrect factory and default MAC address on Solaris

HostOnly Network: fixed the problem with listing host-only interfaces on Mac OS X when all physical interfaces are down (bugs #4698, #4790)

DHCP: fixed a bug in the DHCP server where it allocated one IP address less than the configured range

E1000: fixed receiving of multicast packets

E1000: fixed up/down link notification after resuming a VM

NAT: fixed Ethernet address corruptions (bug #4839)

NAT: fixed hangs, dropped packets and retransmission problems (bug #4343)

Bridged networking: fixed packet queue issue which might cause DRIVER_POWER_STATE_FAILURE BSOD for Windows hosts (bug #4821)

Windows Additions: fixed a bug in VBoxGINA which prevented selecting the right domain when logging in the first time

Windows host installer: should now also work on unicode systems (like Korean, bug #3707)

Windows host installer: check for sufficient disk space

Shared clipboard: do not send zero-terminated text to X11 guests and hosts (bug #4712)

Shared clipboard: use a less CPU intensive way of checking for new data on X11 guests and hosts (bug #4092)

Guest Additions: do not hide the host mouse cursor when restoring a saved state (bug #4700)

Windows guests: fixed issues with the display of the mouse cursor image (bugs #2603, #2660 and #4817)

SUSE 11 guests: fixed Guest Additions installation (bug #4506)

Guest Additions: support Fedora 12 Alpha guests (bugs #4731, #4733 and #4734)

VMM: 64 bits guest stability fixes (AMD-V only; bugs #3923 & #3666)

VMM: SMP stability fixes (AMD-V only)

VMM: SMP performance improvement (esp. for Solaris guests)

VMM: eliminated several bugs which could lead to a host reboot

VMM: fixed OS/2 ACP2 boot floppy hang (VT-x only)

VMM: small performance improvement for OpenSolaris guests (AMD-V only)

VMM: fixed CentOS/Xen reboot (software virtualization only; bug #4509)

SATA: fixed hangs / BSOD during Windows XP installation (bug #4342)

SATA: mark the ports as non hotpluggable (bug #3920)

3D support: fix deadlocks and context/window tracking for multithreaded applications (bug #3922)

3D support: fix memory leaks when terminating OpenGL guest applications

3D support: fix crash in Call of Duty

NAT: using two or more NAT adapters in one VM was broken (3.0.0 regression)

NAT: fixed network communication corruptions (bugs #4499, #4540, #4591, #4604)

NAT: fixed passive ftp access to host server (bug #4427)

iSCSI: fixed cloning to/from iSCSI disks

GUI: fixed path separator handling for the OVF export on Windows (bug #4354)

GUI: the mini toolbar was only shown on the first host display (bug #4654)

GUI: added a VM option to display the mini toolbar on top

GUI: don't crash when adding plus configuring host-only network interfaces

Shared Folders: fixed selection of a drive root directory as a shared folder host path in VirtualBox (Windows host only)

USB: fixed a bug that may have rendered USB device filter settings inactive (3.0.2 regression, bug #4668)

Guest Additions: report the Guest Additions version to the guest properties (bug #3415)

Mac OS X hosts: fix creation of VMDK files giving raw partition access (bug #1461)

Mac OS X hosts: improved support for Snow Leopard

Linux hosts: fixed problems leading to wrong colors or transparency in host windows with some graphics drivers (bug #3095)

Linux hosts: hardware detection fallbacks if the hal service fails to find any DVD drives

Linux and Solaris hosts: Work around color handling problems in Qt (bug #4353)

Solaris hosts: fixed memory leaks in host-only networking

Solaris Installer: fixed incorrect netmask for Host-only interface (bug #4590)

Solaris Installer: added package dependency for Python and Python-devel (bug #4570)

X11 guests: prevent windows from being skipped in seamless mode KDE guests (bugs #1681 and #3574)

X11 guests: fixed screen corruption in X11 guests when large amounts of video RAM were allocated (bug #4430)

X11 guests: some fixes when switching between host and guest-drawn mouse pointers

X11 guests: fixed an issue which caused seamless mode to stop working as it should (the main issue listed in bug #2238)

VMM: fixed network regressions (guest hangs during network IO) (bug #4343)

VMM: guest SMP performance improvements

VMM: fixed hangs and poor performance with Kaspersky Internet Security (VT-x/AMD-V only; bug #1778)

VMM: fixed crashes when executing certain Linux guests (software virtualization only; bugs #2696 & #3868)

ACPI: fixed Windows 2000 kernel hangs with IO-APIC enabled (bug #4348)

APIC: fixed high idle load for certain Linux guests (3.0 regression)

BIOS: properly handle Ctrl-Alt-Del in real mode

iSCSI: fixed configuration parsing (bug #4236)

OVF: fix potential confusion when exporting networks

OVF: compatibility fix (bug #4452)

OVF: accept ovf:/disk/ specifiers with a single slash in addition to ovf://disk/ (bug #4452)

NAT: fixed crashes under certain circumstances (bug #4330)

3D support: fixed dynamic linking on Solaris/OpenSolaris guests (bug #4399)

3D support: fixed incorrect context/window tracking for multithreaded apps

Shared Folders: fixed loading from saved state (bug #1595)

Shared Folders: host file permissions set to 0400 with Windows guest (bug #4381)

X11 host and guest clipboard: fixed a number of issues, including bug #4380 and #4344

X11 Additions: fixed some issues with seamless windows in X11 guests (bug #3727)

Windows Additions: added VBoxServiceNT for NT4 guests (for time synchronization and guest properties)

Windows Additions: fixed version lookup

Linux Installer: support Pardus Linux

Linux hosts: workaround for buggy graphics drivers showing a black VM window on recent distributions (bug #4335)

Linux hosts: fixed typo in kernel module startup script (bug #4388)

Solaris hosts: several installer fixes

Solaris hosts: fixed a preemption issue causing VMs to never start on Solaris 10 (bug #4328)

Solaris guests: fixed mouse integration for OpenSolaris 2009.06 (bug #4365)

Windows hosts: fixed high CPU usage after resuming the host (bug #2978)

Fixed a settings file conversion bug which sometimes caused hardware acceleration to be enabled for virtual machines that had no explicit configuration in the XML

Guest SMP with up to 32 virtual CPUs (VT-x and AMD-V only; see the section called �"Processor" tab�)

Windows guests: ability to use Direct3D 8/9 applications / games (experimental; see the section called �Hardware 3D acceleration (OpenGL and Direct3D 8/9)�)

Support for OpenGL 2.0 for Windows, Linux and Solaris guests

Solaris hosts: allow suspend/resume on the host when a VM is running (bug #3826)

Solaris hosts: loosen the restriction for contiguous physical memory under certain conditions

Mac OS X hosts: fixed guest PAE

Linux hosts: kernel module compile fixes for 2.6.31 (bug #4264)

VMM: fixed occasional guru meditation when loading a saved state (VT-x only)

VMM: eliminated IO-APIC overhead with 32 bits guests (VT-x only, some Intel CPUs don't support this feature (most do); bug #638)

VMM: fixed 64 bits CentOS guest hangs during early boot (AMD-V only; bug #3927)

VMM: performance improvements for certain PAE guests (e.g. Linux 2.6.29+ kernels)

VMM: some Windows guests detected a completely wrong CPU frequency (bug #2227)

VMM: fixed hanging and unkillable VM processes (bug #4040)

VMM: fixed random infrequent guest crashes due XMM state corruption (Win64 hosts only)

VMM: performance improvements for network I/O (VT-x/AMD-V only)

GUI: added mini toolbar for fullscreen and seamless mode (Thanks to Huihong Luo)

GUI: redesigned settings dialogs

GUI: allow to create/remove more than one host-only network adapters (non Windows hosts)

GUI: display estimated time for long running operations (e.g. OVF import/export)

GUI: fixed rare hangs when open the OVF import/export wizards (bug #4157)

3D support: fixed VM crashes for client applications using incorrect OpenGL states

3D support: fixed memory corruption when querying for supported texture compression formats

3D support: fixed incorrect rendering of glDrawRangeElements

3D support: fixed memory leak when using VBOs

3D support: fixed glew library detection

3D support: fixed random textures corruption

VRDP: support Windows 7 RDP client

Networking: fixed another problem with TX checksum offloading with Linux kernels up to version 2.6.18

NAT: fixed "open ports on virtual router 10.0.2.2 - 513, 514" (forum)

NAT: allow to configure socket and internal parameters

NAT: allow to bind sockets to specific interface

PXE boot: significant performance increase (VT-x/AMD-V only)

VHD: properly write empty sectors when cloning of VHD images (bug #4080)

VHD: fixed crash when discarding snapshots of a VHD image

VHD: fixed access beyond the block bitmap which could lead to arbitrary crashes

VBoxManage: fixed incorrect partition table processing when creating VMDK files giving raw partition access (bug #3510)

VBoxManage: support cloning to existing image file

OVF: several OVF 1.0 compatibility fixes

OVF: fixed exporting of disk images when multiple virtual machines are exported at once

Virtual mouse device: eliminated micro-movements of the virtual mouse which were confusing some applications (bug #3782)

Shared Folders: sometimes a file was created using the wrong permissions (2.2.0 regression; bug #3785)

Shared Folders: allow to change file attributes from Linux guests and use the correct file mode when creating files

Shared Folders: some content was incorrectly written under certain conditions (bug #1187)

Shared Folders: fixed incorrect file timestamps, when using Windows guest on a Linux host (bug #3404)

X11 clipboard: fix duplicate end of lines (bug #4270)

X11 guests: a number of shared clipboard fixes

Linux guests: Guest Additions support for SUSE Linux Enterprise Desktop 11

Linux guests: new daemon vboxadd-service to handle time synchronization and guest property lookup

Linux guests: implemented guest properties (OS info, logged in users, basic network information)

Windows host installer: VirtualBox Python API can now be installed automatically (requires Python and Win32 Extensions installed)

USB: Support for high-speed isochronous endpoints has been added. In addition, read-ahead buffering is performed for input endpoints (currently Linux hosts only). This should allow additional devices to work, notably webcams (bug #242)

USB: fixed error handling for some USB dongles

Web service: fixed inability to handle NULL pointers for object arguments, which are valid values for a lot of APIs, in both the raw and the object-oriented web service

Web service: object-oriented bindings for JAX-WS did not exhibit interface inheritance correctly, fixed

Web service: added support for IDisplay and IGuest interfaces, which were previously unavailable

Registration dialog uses Sun Online accounts now

Windows Installer: fixed a potential hang during installation

Windows Installer: fixed several problems (bug #3892)

Solaris hosts: make it work with Solaris build 114 or later (bug #3981)

Solaris hosts: fixed a bug serial port character handling found during loopback (bug #3120)

Linux hosts: adapted vboxdrv.sh to the latest changes in VBoxManage list runningvms (bug #4034)

Windows hosts: fixed a crash caused by host-only/bridged networking

Mac OS X hosts: fixed access to host DVD with passthrough disabled (bug #4077)

Guest Additions: fixed problems with KDE 4 not recognizing mouse clicks

Windows Additions: fixed incorrect 8-bit guest color depth in Windows 7 guests

GUI: warn if VT-x/AMD-V could not be enabled for guests that require this setting (bug #4055)

VMM: fixed occasional crash due to insufficient memory

VMM: fixed hanging 64 bits Solaris guests

VMM: restore from a saved state occasionally failed (bugs #3984 and #2742)

Clipboard: fixed a deadlock while shutting down the shared clipboard on X11 hosts (bug #4020)

OVF: fixed potential hang during import

OVF: fixed potential crashes during import/export on Win64 hosts

VBoxManage modifyhd --compact: fixed bug which could lead to crashes and image corruption (bug #3864)

VBoxManage metrics collect: now flushes the output stream

VHD: made VBoxManage internalcommands sethduuid work for .vhd files (bug #3443)

VHD: some .vhd files could not be cloned (bug #4080)

NAT: improvement of TCP connection establishment (bug #2987)

NAT: fixed order of DNS servers in DHCP lease (bug #4091)

NAT: fixed DHCP lease for multiple name servers (bug #3692)

NAT: fixed a potential segfault if the host lost its connectivity (bug #3964)

Shared Folders: deny access to parent directories on Windows hosts (bug #4090)

Shared Folders: make rm/rmdir work with Solaris guests on Windows hosts

Networking: fixed the problem with blocked receiving thread when a broadcast packet arrives too early to be handled by uninitialized e1000 adapter

Networking: fixed the problem that caused host freezes/crashes when using bridged mode with host's interface having RX checksum offloading on (bug #3926 and related). Fixes problems with TX offloading as well (bug #3870)

PXE boot: Added support for PRO/1000 MT Server adapter

Python bindings: fixed keyword conflict

SCSI: fixed occasional crashes on Win64

Serial: allow to redirect the serial port to a raw file (bug #1023)

VRDP: fixed a rare incorrect screen update

VMDK: fixed creating snapshots

Host and guest clipboard: fixed a number of issues affecting hosts and guests running the X window system

Guest Additions: make sure the virtual mouse autodetection works on first reboot after installing the Additions on X.Org server 1.5 and later

Guest Additions: properly report process identity number of running services

Guest Additions: clean up properly if the X Window server terminates

Linux Additions: fixed installation path for OpenGL libraries in some 64-bit guests (bug #3693)

Solaris Additions: fixed installation to work when X.Org is not installed on the guest

Solaris Additions: fixed a bug that could panic the guest when unmounting a busy shared folder

Windows Additions: fixed mouse pointer integration of some Windows guests (2.2.0 regression, bug #3734)

Windows Additions: fixed installation on Windows Server 2008 Core (bug #2628)

Main: do not try to use older versions of D-Bus (Linux hosts only, bug #3732)

VMM: fixed out-of-memory conditions on Windows hosts (bug #3657)

VMM: fixed occasional hangs when attaching USB devices during VM startup (2.2.0 regression; bugs #3787)

VMM: fixed guru meditation related to memory management (software virtualization only)

Virtual disks: fix possible data corruption when writing to diff images, incorrect detection of redundant writes

GUI: reworked network settings dialog

GUI: properly show the detailed settings dialog of NAT networks (bug #3702)

GUI: HostKey could not be changed (2.2.0 regression, bug #3689)

GUI: fixed memory textfield size (Windows hosts only; bug #3679)

GUI: fixed crash when selecting a shared folder path (Windows hosts only; bugs #3694, #3751, #3756)

VBoxManage modifyhd --compact: implemented again for VDI files, and now supports relative paths (bug #2180, #2833)

VBoxManage snapshot discard: made it work again (2.1.0 regression; bug #3714)

NAT: on some Windows hosts, the guest didn't receive a DHCP lease (bug #3655)

NAT: fixed release assertion during poll() (bug #3667)

Networking: fixed a deadlock caused by the PCnet network device emulation (2.2.0 regression, bug #3676)

Clipboard: fixed random crashes (X11 hosts only, bug #3723)

Shared Folders: fixed incorrect permissions for Solaris guests

Shared Folders: fixed wrong file sizes with Solaris guests

CBindings: fixed possible memory leak while releasing the IVirtualBox and ISession Objects

Solaris hosts: fixed host-only network interface incompatibility with nwam/dhcpagent (bug #3754)

Windows installer: fixed several install and uninstall issues (bugs #3659, #3686, #1730, #3711, #3373, #3382, #3701, #3685, #3710)

Mac OS X hosts: preliminary support for Snow Leopard

OVF (Open Virtualization Format) appliance import and export (see the section called �Importing and exporting virtual machines�)

Host-only networking mode (see the section called �Host-only networking�)

Hypervisor optimizations with significant performance gains for high context switching rates

Raised the memory limit for VMs on 64-bit hosts to 16GB

VT-x/AMD-V are enabled by default for newly created virtual machines

USB (OHCI & EHCI) is enabled by default for newly created virtual machines (Qt GUI only)

Experimental USB support for OpenSolaris hosts

Shared Folders for Solaris and OpenSolaris guests

OpenGL 3D acceleration for Linux and Solaris guests (see the section called �Hardware 3D acceleration (OpenGL and Direct3D 8/9)�)

Added C API in addition to C++, Java, Python and Web Services

VMM: FreeBSD guest related fix for V86 flags (bug #2342)

VMM: fixed guru meditation when booting an AsteriskNow Linux VM (bug #2342)

VMM: fixed PGMPOOLKIND_FREE guru meditation (bugs #3356, #3431)

VMM: fixed Windows XP boot hang (guest PAE + nested paging only)

VMM: allow mixing of VT-x/AMD-V and software virtualization

VMM: fixed extremely slow safe mode booting in e.g. Windows 2008 (VT-x/AMD-V only)

VMM: significant speedup of certain GRUB boot loaders (e.g. Solaris) (VT-x/AMD-V only)

VMM: real-mode IOPL fix for DOS guests (VT-x only)

VMM: fixed VT-x detection with certain BIOSes that enable VT-x, but don't set the lock bit in MSR_IA32_FEATURE_CONTROL

VMM: fixed hibernation issues on Windows XP hosts (VT-x only; bug #1794)

VMM: properly emulate RDMSR from the TSC MSR, should fix some NetBSD guests

VMM: emulate RDPMC; fixes Windows guests crashes when using the Kaspersky virus scanner (bug #1778)

NAT: fixed truncated downloads (FTP) (bug #3257)

NAT: blocked UDP packets caused a crash (bug #3426)

NAT: allow to configure the next server and the boot file via VBoxManage (bug #2759)

IDE: fixed hard disk upgrade from XML-1.2 settings (bug #1518)

Hard disk: support more VMDK file variants (including fixed-size ESX server images)

Hard disks: refuse to start the VM if a disk image is not writable

USB: further reduced host CPU utilization for OHCI and EHCI; the "VBoxInternal/Devices/usb-ohci/0/Config/FrameRate" CFG key is no longer necessary and no longer supported

USB: fixed BSOD on the host with certain USB devices (Windows hosts only; bug #1654)

E1000: properly handle cable disconnects (bug #3421)

VRDP: fixed hangs when VRDP server is enabled or disabled in runtime

Shared Folders: respect umask settings on Linux, OSX and Solaris hosts when creating files

X11 guests: prevented setting the locale in vboxmouse, as this caused problems with Turkish locales (bug #3563)

X11 guests: show the guest mouse pointer at the right position if the virtual desktop is larger than the guest resolution (bug #2306)

Linux Additions: fixed typo when detecting Xorg 1.6 (bug #3555)

Solaris guests: added xpg4/xcu4 dependency to the Guest Additions installer (bug #3524)

Windows guests: bind the VBoxMouse.sys filter driver to the correct guest pointing device (bug #1324)

Windows hosts: fixed BSOD when starting a VM with enabled host interface (bug #3414)

Linux hosts: do proper reference counting to prevent unloading the vboxnetflt module as long as this code is in use (bug #3104)

Linux hosts: do not leave zombies of VBoxSysInfo.sh (bug #3586)

Linux installers: fixes for Slackware, Arch Linux and Linux from Scratch systems

Windows installers: combined installer executable which contains both (32- and 64-bit) architectures

VBoxManage: less cryptic command-line error messages

VBoxManage list vms commands now default to compact format

VBoxManage controlvm dvdattach did not work if the image was attached before

VBoxManage: allow creation of all supported disk image variants

VBoxManage showvminfo: don't spam the release log if the Guest Additions don't support statistics information (bug #3457)

VBoxManage: big command line processing cleanup, the legacy single-dash options are deprecated and will be removed in the next major release, so switch to the new options now

Hard disks: improved immutable disk support to auto-reset diff file at VM startup (related to bug #2772)

GUI: enable the audio adapter by default for new VMs

GUI: warn if VT-x/AMD-V is not operational when starting a 64-bit guest

GUI: deactivate 64-bit guest support when the host CPU does not support VT-x/AMD-V

GUI: removed floppy icon from the status bar

GUI: show build revision in about dialog

GUI: fixed sticky status bar text

GUI: improved error dialogs

GUI: fail with an appropriate error message when trying to boot a read-only disk image (bug #1745)

GUI/Mac OS X: fixed disabled close button

GUI/Windows: re-enabled support for copy and paste (Windows hosts 2.0 regression; bug #2065)

3D support: added OpenGL select/feedback support (bug #2920)

3D support: close OpenGL subsystem for terminated guest applications (bug #3243)

3D support: fixed VM hangs when starting guests with 3D acceleration enabled (bug #3437)

PXE: fixed boot hangs when hardware virtualization is used (bug #2536)

LsiLogic: fixed problems with Solaris guests

Main API: close machine settings XML file when unregistering machine (bug #3548)

Windows hosts: fixed host crashes/hangs on certain 32 bits Windows systems when running Linux guests (bugs #1606, #2269, #2763)

Windows hosts: fixed network component BSOD issue (bugs #3168, #2916)

Windows hosts: fixed installation issues (bugs #2517, #1730, #3130)

Linux hosts: fixed occasional kernel oopses (bug #2556)

Linux hosts: fixed module dependency for shipped modules (bug #3115)

Linux hosts: moved the udev rules for USB forward so that they don't override existing system rules (bug #3143)

Linux hosts: fixed the issue with guest not being able to communicate with each other when attached via TAP interfaces (bug #3215)

Linux hosts: give up probing for USB gracefully if DBus or hal are not available (bug #3136)

Linux hosts: fixed warnings in installer when SELinux was disabled (bug #3098)

Linux hosts: VirtualBox sometimes failed to start if it had been started using sudo previously (bug #3270)

Solaris hosts: fixed high CPU load while running many guests in parallel

Solaris hosts: fixed inability to start more than 128 VMs

VMM: fixed performance regression for Windows guests (bug #3172)

VMM: ignore CPU stepping when restoring a saved state/snapshot

REM: fixed inability to use gdb to debug programs in Linux guests with software virtualization (bug #3245)

GUI: fixed dead key handling on Solaris hosts (bug #3256)

GUI: in the shutdown dialog, disable the action send the shutdown signal if the guest is currently not using ACPI

GUI: suppress additional key release events sent by X11 hosts when keys are auto-repeated (bug #1296)

API: restore case insensitive OS type name lookup (bug #3087)

VBoxHeadless: really don't start X11 services (clipboard service, 3D acceleration; Solaris & Darwin hosts only; bug #3199)

NAT: fixed occasional crashes when the guest is doing traceroute (non-Windows hosts; bug #3200)

NAT: fixed crashes under high load (bug #3110)

NAT: fixed truncated downloads (Windows hosts only, bug #3257)

NAT: don't intercept TFTP packages with a destination address different from the builtin TFTP server (bug #3112)

USB: several fixes for USB passthrough on Linux hosts

USB: reduced host CPU utilization if EHCI is active

VRDP: fixed VRDP server black screen after a client reconnect (bug #1989)

VRDP: modified rdesktop client (rdesktop-vrdp) now uses NumLock state synchronization (bug #3253)

LsiLogic: make FreeBSD guests work (bug #3174)

ATA: fixed deadlock when pausing VM due to problems with the virtual disk (e.g. disk full, iSCSI target unavailable)

iSCSI: fixed possible crash when pausing the VM

3D support: added missing GL_MAX_TEXTURE_COORDS_ARB (bug #3246)

Windows Additions: fixed ERROR (e0000101) error during installation (bug #1923)

Windows Additions: fixed Windows Explorer hang when browsing shared folders with 64 bit guests (bug #2225)

Windows Additions: fixed guest screen distortions during a video mode change

Windows Additions: fixed the Network drive not connected message for mapped shared folders drives after the guest startup (bug #3157)

Linux Additions: fixed occasional file corruption when writing files in O_APPEND mode to a shared folder (bug #2844)

Linux Additions: the mouse driver was not properly set up on X.Org release candidates (bug #3212)

Linux Additions: fixed installer to work with openSUSE 11.1 (bug #3213)

Linux Additions: disable dynamic resizing if the X server is configured for fixed resolutions

Linux/Solaris Additions: handle virtual resolutions properly which are larger than the actual guest resolution (bug #3096)

USB: Linux host support fixes (bug #3136)

VMM: fixed guru meditation for PAE guests on non-PAE hosts (AMD-V)

VMM: fixed guru meditation on Mac OS X hosts when using VT-x

VMM: allow running up to 1023 VMs on 64-bit hosts (used to be 127)

VMM: several FreeBSD guest related fixes (bugs #2342, #2341, #2761)

VMM: fixed guru meditation when installing Suse Enterprise Server 10U2 (VT-x only; bug #3039)

VMM: fixed guru meditation when booting Novell Netware 4.11 (VT-x only; bug #2898)

VMM: fixed VERR_ADDRESS_TOO_BIG error on some Mac OS X systems when starting a VM

VMM: clear MSR_K6_EFER_SVME after probing for AMD-V (bug #3058)

VMM: fixed guru meditation during Windows 7 boot with more than 2 GB guest RAM (VT-x, nested paging only)

VMM: fixed hang during OS/2 MCP2 boot (AMD-V and VT-x only)

VMM: fixed loop during OpenBSD 4.0 boot (VT-x only)

VMM: fixed random crashes related to FPU/XMM with 64 bits guests on 32 bits hosts

VMM: fixed occasional XMM state corruption with 64 bits guests

GUI: raised the RAM limit for new VMs to 75% of the host memory

GUI: added Windows 7 as operating system type

VBoxSDL: fixed -fixed fixedmode parameter (bug #3067)

Clipboard: stability fixes (Linux and Solaris hosts only, bug #2675 and #3003)

3D support: fixed VM crashes for certain guest applications (bugs #2781, #2797, #2972, #3089)

LsiLogic: improved support for Windows guests (still experimental)

VGA: fixed a 2.1.0 regression where guest screen resize events were not properly handled (bug #2783)

VGA: significant performance improvements when using VT-x/AMD-V on Mac OS X hosts

VGA: better handling for VRAM offset changes (fixes GRUB2 and Dos DOOM display issues)

VGA: custom VESA modes with invalid widths are now rounded up to correct ones (bug #2895)

IDE: fixed ATAPI passthrough support (Linux hosts only; bug #2795)

Networking: fixed kernel panics due to NULL pointer dereference in Linux kernels < 2.6.20 (Linux hosts only; bug #2827)

Networking: fixed intermittent BSODs when using the new host interface (Windows hosts only; bugs #2832, #2937, #2929)

Networking: fixed several issues with displaying hostif NICs in the GUI (Windows hosts only; bugs 2814, #2842)

Networking: fixed the issue with displaying hostif NICs without assigned IP addresses (Linux hosts only; bug #2780)

Networking: fixed the issue with sent packets coming back to internal network when using hostif (Linux hosts only; bug #3056).

NAT: fixed port forwarding (Windows hosts only; bug #2808)

NAT: fixed booting from the builtin TFTP server (bug #1959)

NAT: fixed occasional crashes (bug #2709)

SATA: vendor product data (VPD) is now configurable

SATA: raw disk partitions were not recognized (2.1.0 regression, Windows host only, bug #2778)

SATA: fixed timeouts in the guest when using raw VMDK files (Linux host only, bug #2796)

SATA: huge speed up during certain I/O operations like formatting a drive

SATA/IDE: fixed possible crash/errors during VM shutdown

VRDP: fixed loading of libpam.so.1 from the host (Solaris hosts only)

VRDP: fixed RDP client disconnects

VRDP: fixed VRDP server misbehavior after a broken client connection

VBoxManage showvminfo: fixed assertion for running VMs (bug #2773)

VBoxManage convertfromraw: added parameter checking and made it default to creating VDI files; fixed and documented format parameter (bug #2776)

VBoxManage clonehd: fixed garbled output image when creating VDI files (bug #2813)

VBoxManage guestproperty: fixed property enumeration (incorrect parameters/exception)

VHD: fixed error when attaching certain container files (bug #2768)

Solaris hosts: added support for serial ports (bug #1849)

Solaris hosts: fix for Japanese keyboards (bug #2847)

Solaris hosts: 32-bit and 64-bit versions now available as a single, unified package

Linux hosts: don't depend on libcap1 anymore (bug #2859)

Linux hosts: kernel module compile fixes for 2.6.29-rc1

Linux hosts: don't drop any capability if the VM was started by root (2.1.0 regression)

Mac OS X hosts: save the state of running or paused VMs when the host machine's battery reaches critical level

Mac OS X hosts: improved window resizing of the VM window

Mac OS X hosts: added GUI option to disable the dock icon realtime preview in the GUI to decrease the host CPU load when the guest is doing 3D

Mac OS X hosts: polished realtime preview dock icon

Windows Additions: fixed guest property and logging OS type detection for Windows 2008 and Windows 7 Beta

Windows Additions: added support for Windows 7 Beta (bugs #2995, #3015)

Windows Additions: fixed Windows 2000 guest freeze when accessing files on shared folders (bug #2764)

Windows Additions: fixed CTRL-ALT-DEL handling when using VBoxGINA

Windows Additions Installer: added /extract switch to only extract (not install) the files to a directory (can be specified with /D=path)

Linux installer and Additions: added support for the Linux From Scratch distribution (bug #1587) and recent Gentoo versions (bug #2938)

Additions: added experimental support for X.Org Server 1.6 RC on Linux guests

Linux Additions: fixed bug which prevented to properly set fmode on mapped shared folders (bug #1776)

Linux Additions: fixed appending of files on shared folders (bug #1612)

Linux Additions: ignore noauto option when mounting a shared folder (bug #2498)

Linux Additions: fixed a driver issue preventing X11 from compiling keymaps (bug #2793 and #2905)

X11 Additions: workaround in the mouse driver for a server crash when the driver is loaded manually (bug #2397)

Support for hardware virtualization (VT-x and AMD-V) on Mac OS X hosts

Support for 64-bit guests on 32-bit host operating systems (experimental; see the section called �64-bit guests�)

Added support for Intel Nehalem virtualization enhancements (EPT and VPID; see the section called �Hardware vs. software virtualization�)

Experimental 3D acceleration via OpenGL (see the section called �Hardware 3D acceleration (OpenGL and Direct3D 8/9)�)

Experimental LsiLogic and BusLogic SCSI controllers (see the section called �Hard disk controllers: IDE, SATA (AHCI), SCSI, SAS�)

Full VMDK/VHD support including snapshots (see the section called �Disk image files (VDI, VMDK, VHD, HDD)�)

New NAT engine with significantly better performance, reliability and ICMP echo (ping) support (bugs #1046, #2438, #2223, #1247)

New Host Interface Networking implementations for Windows and Linux hosts with easier setup (replaces TUN/TAP on Linux and manual bridging on Windows)

VMM: significant performance improvements for VT-x (real mode execution)

VMM: support for hardware breakpoints (VT-x and AMD-V only; bug #477)

VMM: VGA performance improvements for VT-x and AMD-V

VMM: Solaris and OpenSolaris guest performance improvements for AMD-V (Barcelona family CPUs only)

VMM: fixed guru meditation while running the Dr. Web virus scanner (software virtualization only; bug #1439)

VMM: deactivate VT-x and AMD-V when the host machine goes into suspend mode; reactivate when the host machine resumes (Windows, Mac OS X & Linux hosts; bug #1660)

VMM: fixed guest hangs when restoring VT-x or AMD-V saved states/snapshots

VMM: fixed guru meditation when executing a one byte debug instruction (VT-x only; bug #2617)

VMM: fixed guru meditation for PAE guests on non-PAE hosts (VT-x)

VMM: disallow mixing of software and hardware virtualization execution in general (bug #2404)

VMM: fixed black screen when booting OS/2 1.x (AMD-V only)

GUI: pause running VMs when the host machine goes into suspend mode (Windows & Mac OS X hosts)

GUI: resume previously paused VMs when the host machine resumes after suspend (Windows & Mac OS X hosts)

GUI: save the state of running or paused VMs when the host machine's battery reaches critical level (Windows hosts)

GUI: properly restore the position of the selector window when running on the compiz window manager

GUI: properly restore the VM in seamless mode (2.0 regression)

GUI: warn user about non optimal memory settings

GUI: structure operating system list according to family and version for improved usability

GUI: predefined settings for QNX guests

IDE: improved ATAPI passthrough support

Networking: added support for up to 8 Ethernet adapters per VM

Networking: fixed issue where a VM could lose connectivity after a reboot

iSCSI: allow snapshot/diff creation using local VDI file

iSCSI: improved interoperability with iSCSI targets

Graphics: fixed handling of a guest video memory which is not a power of two (bug #2724)

VBoxManage: fixed bug which prevented setting up the serial port for direct device access

VBoxManage: added support for VMDK and VHD image creation

VBoxManage: added support for image conversion (VDI/VMDK/VHD/RAW)

Solaris hosts: added IPv6 support between host and guest when using host interface networking

Mac OS X hosts: added ACPI host power status reporting

API: redesigned storage model with better generalization

API: allow attaching a hard disk to more than one VM at a time

API: added methods to return network configuration information of the host system

Shared Folders: performance and stability fixes for Windows guests (Microsoft Office Applications)

VMM: fixed guest hangs when restoring VT-x or AMD-V saved states/snapshots

VMM: fixed memory allocation issues which can cause VM start failures with VERR_PGM_MAPPING_CONFLICT error

VMM: fixed host crashes/hangs on certain 32 bits Windows systems when running Linux guests (bugs #1606, #2269, #2763)

XPCOM/Main: fixed synchronization bug caused by SYSV semaphore key collisions

ATA: fixed deadlock when pausing VM due to problems with the virtual disk (e.g. disk full, iSCSI target unavailable)

iSCSI: fixed possible crash when pausing the VM

iSCSI: fix PDU validity checking and detect final PDU reliably

VBoxHeadless: really don't start X11 services (clipboard service, 3D acceleration; Solaris & Darwin hosts only; bug #3199)

Networking: fixed issue where a VM could lose connectivity after a reboot

Linux hosts: fixed occasional kernel oopses (bug #2556)

Solaris hosts: fixed high CPU load while running many guests in parallel

Solaris hosts: fixed inability to start more than 128 VMs

Solaris/Web services: fixed SMF script to set home directory correctly

Linux Additions: fixed occasional file corruption when writing files in O_APPEND mode to a shared folder (bug #2844)

VMM: fixed Guru meditation when running 64 bits Windows guests (bug #2220)

VMM: fixed Solaris 10U6 boot hangs (VT-x and AMD-V) bug #2565)

VMM: fixed Solaris 10U6 reboot hangs (AMD-V only; bug #2565)

GUI: the host key was sometimes not properly displayed (Windows hosts only, bug #1996)

GUI: the keyboard focus was lost after minimizing and restoring the VM window via the Windows taskbar (bugs #784)

VBoxManage: properly show SATA disks when showing the VM information (bug #2624)

SATA: fixed access if the buffer size is not sector-aligned (bug #2024)

SATA: improved performance

SATA: fixed snapshot function with ports>1 (bug #2510)

E1000: fixed crash under rare circumstances

USB: fixed support for iPhone and Nokia devices (Linux host: bugs #470 & #491)

Windows host installer: added proper handling of open VirtualBox applications when updating the installation

Windows host installer: fixed default installation directory on 64-bit on new installations (bug #2501)

Linux/Solaris/Darwin hosts: verify permissions in /tmp/vbox-$USER-ipc

Linux hosts: fixed assertion on high network load (AMD64 hosts, fix for Linux distributions with glibc 2.6 and newer (bug #616)

Linux hosts: don't crash during shutdown with serial ports connected to a host device

Solaris hosts: fixed incompatibility between IPSEC and host interface networking

Solaris hosts: fixed a rare race condition while powering off VMs with host interface networking

Solaris hosts: fixed VBoxSDL on Solaris 10 by shipping the required SDL library (bug #2475)

Windows Additions: fixed logged in users reporting via guest properties when using native RDP connections

Windows Additions: fixed Vista crashes when accessing shared folders under certain circumstances (bug #2461)

Windows Additions: fixed shared folders access with MS-Office (bug #2591)

Linux Additions: fixed compilation of vboxvfs.ko for 64-bit guests (bug #2550)

SDK: added JAX-WS port caching to speedup connections

VMM: better error reporting for VT-x failures

VMM: don't overflow the release log with PATM messages (bug #1775)

VMM: fixed save state restore in real mode (software virtualization only)

GUI: work around a Qt bug on Mac OS X (bug #2321)

GUI: properly install the Qt4 accessible plugin (bug #629)

SATA: error message when starting a VM with a VMDK connected to a SATA port (bug #2182)

SATA: fixed Guru mediation when booting OpenSolaris/64; most likely applies to other guests as well (bug #2292)

Network: don't crash when changing the adapter link state if no host driver is attached (bug #2333)

VHD: fixed bug which prevents booting from VHD images bigger than 4GB (bug #2085)

VRDP: fixed a repaint problem when the guest resolution was not equal to the client resolution

Clipboard: don't crash when host service initialization takes longer than expected (Linux hosts only; bug #2001)

Windows hosts: VBoxSVC.exe crash (bug #2212)

Windows hosts: VBoxSVC.exe memory leak due to a Windows WMI memory leak (Vista only) (bug #2242)

Windows hosts: VBoxSVC.exe delays GUI startup

Linux hosts: handle jiffies counter overflow (VM stuck after 300 seconds of host uptime; bug #2247)

Solaris hosts: fixed host or guest side networking going stale while using host interface networking (bug #2474)

Solaris hosts: added support for using unplumbed network interfaces and Crossbow Virtual Network Interfaces (VNICs) with host interface networking

Solaris hosts: reworked threading model improves performance for host interface networking

Windows Additions: fixed crash when accessing deep directory structures in a shared folder

Windows Additions: improved shared folder name resolving (bug #1728)

Windows Additions: fixed Windows 2000 shutdown crash (bug #2254)

Windows Additions: fixed error code for MoveFile() if the target exists (bug #2350)

Linux Additions: fixed seek() for files bigger than 2GB (bug #2379)

Linux Additions: support Ubuntu 8.10

Linux Additions: clipboard fixes (bug #2015)

Web services: improved documentation and fixed example (bug #1642)

VMM: fixed inability to run more than one VM in parallel (AMD-V on CPUs with erratum 170 only; bug #2167)

VMM: VT-x stability fixes (bug #2179 and others)

VMM: fixed Linux 2.6.26+ kernel crashes (used by Ubuntu 8.10 Alpha, Fedora 10 Alpha; bug #1875)

VMM: fixed 64 bits Linux 2.6.26 kernel crashes (Debian)

VMM: fixed Vista (32 bits) guest crash during boot when PAE and NX are enabled (applied to 64 bits hosts with VT-x enabled only)

VMM: fixed OS/2 guest crashes during boot (AMD-V; bug #2132)

GUI: fixed crash when trying to release an inaccessible image in the virtual disk manager

GUI: fixed invalid error message for a changed snapshot path even if that path wasn't changed (bug #2064)

GUI: fixed crash when creating a new hard disk image (bug #2060)

GUI: fixed crash when adding a hard disk in the VM settings (bug #2081)

GUI: fixed a bug where VirtualBox isn't working with the new QGtkStyle plugin (bug #2066)

GUI: fixed VM close dialog in seamless mode (Mac OS X hosts only; bug #2067)

GUI: fixed standard menu entries for NLS versions (Mac OS X hosts only)

GUI: disable the VT-x/AMD-V setting when it's not supported by the CPU (or on Mac OS X hosts)

VBoxManage: fixed crash during internalcommands createrawvmdk (bug #2184)

VBoxManage: fixed output of snapshot showvminfo (bug #698)

Guest properties: added information about guest network interfaces (Windows guests only)

Shared Folders: fixed regression that caused Windows guest crashes

API: fixed number of installed CPUs (Solaris hosts only)

VRDP: allow a client to reconnect to an existing session on the VRDP server by dropping the existing connection (configurable and disabled by default; only relevant when multiconnection mode is disabled)

VRDP: fixed an image repaint problem

Linux hosts: fixed bug in vboxdrv.ko that could corrupt kernel memory and panic the kernel (bug #2078)

Linux hosts: compile fixes for kernel module on Linux 2.6.27

Mac OS X hosts: added Python support

Additions: fixed a possible hang in HGCM communication after a VM reboot

Windows Additions: added support for Windows XP 64 bits (bug #2117)

Linux Additions: deactivate dynamic resizing on Linux guests with buggy X servers

Linux Additions: support Ubuntu 8.10 guests and Fedora 9 guests (dynamic resizing disabled for the latter)

Linux Additions: added installer check for the system architecture

Linux Additions: fixed Xorg modules path for some Linux distributions (bug #2128)

VMDK: be more liberal with ambiguous parts of the format specification and accept more format variants (bug #2062)

VHD: fixed a bug in the VHD backend which resulted in reading the wrong data (bug #2085)

Solaris hosts: fixed kernel panic on certain machines when starting VMs with host interface networking (bug #2183)

Solaris hosts: fixed inability to access NFS shares on the host when host interface networking was enabled

Solaris hosts: installer now detects and reports when installing under the wrong architecture

Solaris hosts: fixed security hardening that prevented starting VMs from non-global zones even as root (bug #1948)

Solaris Additions: combined the 32 bit and 64 bit Additions installer into a single package

Mac OS X hosts: experimental support for attaching a real serial port to the guest

64 bits guest support (64 bits host only)

New native Leopard user interface on Mac OS X hosts

The GUI was converted from Qt3 to Qt4 with many visual improvements

New-version notifier

Guest property information interface

Host Interface Networking on Mac OS X hosts

New Host Interface Networking on Solaris hosts

Support for Nested Paging on modern AMD CPUs (major performance gain)

Framework for collecting performance and resource usage data (metrics)

Added SATA asynchronous IO (NCQ: Native Command Queuing) when accessing raw disks/partitions (major performance gain)

Clipboard integration for OS/2 Guests

Created separate SDK component featuring a new Python programming interface on Linux and Solaris hosts

Support for VHD disk images

VMM: VT-x fixes

AHCI: improved performance

GUI: keyboard fixes

Linux installer: properly uninstall the package even if unregistering the DKMS module fails

Linux Additions: the guest screen resolution is properly restored

Network: added support for jumbo frames (> 1536 bytes)

Shared Folders: fixed guest crash with Windows Media Player 11

Mac OS X: Ctrl+Left mouse click doesn't simulate a right mouse click in the guest anymore. Use Hostkey+Left for a right mouse click emulation. (bug #1766)