Oracle VM VirtualBox Changelog

What's new in Oracle VM VirtualBox 7.0.16 Build 162802

Apr 17, 2024

VMM: Fixed a guru meditation executing nested-guests using the KVM hypervisor in the guest on Intel hosts (bug #21805)
VMM: Fixed Linux VM crash on some recent AMD models
USB: Fixed issue when EHCI controller was mishandling short packets (bug #20726)
Audio: Introduced general improvements
VBoxManage and vboximg-mount: Updated usage information and documentation (bugs #21895, #21992 and #21993)
Guest Control: Fixed starting Windows guest processes in the correct Windows session (7.0 regression)
Linux Host: Fixed issue when VBox.sh was deleting wrong VBoxSVC IPC socket when VM was started using sudo (bug #20928)
Linux Host: Fixed kernel modules build failure when using GCC 13.2
macOS Host: Fixed issue when App Nap was affecting VM performance (bug #18678)
Linux Host and Guest: Added fixes related to UBSAN warnings discovered on recent Linux distributions (bug #21877)
Linux Host and Guest: Added possibility to prevent kernel module from automatic loading during system boot by adding mod_name.disabled=1 into kernel command line
Linux Host and Guest: Added initial support for kernel 6.9 (bug #22033)
Linux Host and Guest: Fixed mk_pte warning introduced in kernel 6.6 (bug #21898)
Linux Guest Additions: Added initial support for kernel 6.8
Windows Guest Additions: Introduced general improvements in graphics area

New in Oracle VM VirtualBox 7.0.14 Build 161095 (Jan 16, 2024)

New in Oracle VM VirtualBox 7.0.12 Build 159484 (Oct 17, 2023)

VMM: Fixed using a debugger inside the guest under certain circumstances (bugs #21413 and #21546)
VMM: Fixed detection of VT-x being used by other hypervisors (bug #21867)
VMM: Introduced additional improvements in Split Lock Detection feature of recent Intel CPUs on Linux hosts (bug #20180)
GUI: Fixed issue when the nested hardware virtualization setting was not displayed in the VM details panel (bug #21707)
GUI: Introduced NLS update for Croatian, Indonesian, Italian, Japanese, Korean, Dutch and Turkish languages as well as added general look-and-feel improvements
Devices: Fixed black screen in Windows guests with multiple guest screens when 3D is disabled (7.0.10 regression)
Devices: Fixed PCI device identifiers for the VirtIO network interface (bug #21516)
Devices: Fixed VLAN support for the VirtIO network interface (bug #21778)
Devices: Fixed loading saved states when a TPM is configured (7.0.10 regression, bug #21773)
Networking: Fixed memory leaks in the VBoxIntNetSwitch process on macOS (bug #21752)
Networking: Fixed TCP connections with IP addresses ending on .2 when the NAT network attachment is used (bug #21513)
Audio: Fixed switching host audio devices on Windows hosts using the WAS backend (bugs #20431, #21517, #20630 and #20723)
VRDP: Added general improvements
VBoxManage: Added improvements for "list usbfilters" command
Unattended: Added kick start file support for Oracle Linux 8 and Oracle Linux 9.
Main: Added more Linux OS subtypes
Host Services: Fixed Guest Properties service crash under rare circumstance
Linux Host and Guest: Fixed few "field-spanning write" kernel warnings (bugs #21410 and #21862)
Linux Guest Additions: Added more fixes for RHEL 8.9 and 9.3 kernel
Linux Guest Additions: Added more fixes for kernel 6.4
Linux Guest Additions: Added initial support for OpenSUSE 15.5 kernel
Linux Guest Additions: Added initial support for kernels 6.5 and 6.6
Linux Guest Additions: Added version reporting for "rcvboxadd status-kernel" and "rcvboxadd status-user" commands
BIOS: Restored support for ISA SCSI HBAs in the BIOS (bug #21736)

New in Oracle VM VirtualBox 7.0.10 Build 158379 (Jul 19, 2023)

OCI: Introduced general improvements
VMM: Fixed sluggish performance starting with macOS Ventura 13.3 (bug #21563, bug#21596)
VMM: Fixed a bug while walking page tables while executing nested VMs causing flooding of the release log as a consequence (Intel hosts only, bug #21551)
GUI: Added general improvements
TPM: Fixed a crash when a VM has a TPM version 1.2 configured (bug #21622)
3D: Initial support for OpenGL 4.1
3D: Fixed various graphics issues with Windows 11 guests (bugs #21136, #21515)
Guest Control/VBoxManage: Fixed parameter "--ignore-orphaned-processes"
Guest Control/VBoxManage: Fixed behavior of how handling argument 0 for a started guest process works: One can now explicitly specify it with the newly added option "--arg0". This will effectively restore the behavior of former VirtualBox versions
Audio: Also use the PulseAudio backend when pipewire-pulse is running instead of falling back to ALSA (bug #21575)
NAT: Adjusted UDP proxy timeout from 18-21 to 21-24 range to respect intended 20 second timeout (bug #21560)
Linux Host: Added initial support for Indirect Branch Tracking (bug #21435)
Linux Host: Added initial support for kernel 6.5 (NOTE: Guest Additions do not support kernel 6.5 yet)
Solaris Host: Introduced general improvements in the installer area
Linux Host and Guest: Improved condition check when kernel modules need to be signed
Linux Host and Guest: Added initial support for RHEL 8.8 (bug #21692), 8.9 (bug #21690) and 9.3 (bugs #21598 and #21671) kernels
MacOS Host and Guest: Introduced general improvements in the installer area
Windows Host and Guest: Introduced ECDSA support (bug #21621)
Linux Guest Additions: Fixed issue when kernel modules were rebuilt on each boot when guest system has no X11 installed
Linux Guest Additions: Added initial support for kernel 6.4
Linux Guest Additions: Fixed issue when vboxvideo module reloading caused kernel panic in some guests (bug #21740)
Linux Guest Additions: Introduced general improvements in the installer area
Windows Guest Additions: Introduced general improvements in graphics drivers area

New in Oracle VM VirtualBox 7.0.8 Build 156879 (Apr 19, 2023)

VMM: Fixed EFLAGS.TF handling for CPUID instructions when Hyper-V is used (bug #17961)
VMM: Fixed MONITOR/MWAIT crash with Solaris guests when Hyper-V is used on Windows 11
VMM: Introduced general improvements in nested visualization area
VMM: Fixed triple fault related guru meditations for UEFI guests starting with macOS Ventura 13.3 (bug #21563)
GUI: Brought back Restore current snapshot checkbox of Close VM dialog (bugs #21189, #21491)
GUI: Fixes and validation for VM settings USB filters editor, filter port value is now properly saved/restored
GUI: Fixes for VM name and OS type embedded editors of Details pane
GUI: Cloud related wizards should now propose enabled profiles before disabled
Oracle VM VirtualBox Extension Pack: Fixed shipping the cryptographic support module for full VM encryption
E1000: Fixed possible guru meditation when changing network attachments (bug #21488)
virtio-net: Follow up fixes for FreeBSD 12.3 and pfSense 2.6.0 (bug #21201)
3D: Fixed various graphics issues with Windows 7 guests (bugs #21129, #21196, #21208, #21521)
Main/UefiVariableStore: Added API to add signatures to the MOK list (Machine Owner Key)
VBoxManage: Introduced modifynvram enrollmok sub-command to enroll Machine Owner Key into NVRAM, so Linux guest kernel can pick it up in order to verify signature of modules signed with this key
Guest Control/Main: Fixed deleting files via built-in toolbox
Linux host: Added possibility to bypass kernel modules signature verification once VBOX_BYPASS_MODULES_SIGNATURE_CHECK="1" is specified in /etc/vbox/vbox.cfg, useful in case if Linux distribution does not provide necessary tools to verify kernel module signature
Linux Guest Additions and host Installer: Improved detection if system is running systemd as the init process
Linux Guest Additions and host drivers: Introduce initial support for kernel 6.3
Linux Guest Additions: Added possibility to bypass kernel modules signature verification once VBOX_BYPASS_MODULES_SIGNATURE_CHECK="1" is specified in /etc/virtualbox-guest-additions.conf, useful in case if Linux distribution does not provide necessary tools to verify kernel module signature
Linux Guest Additions: Added experimental support for kernel modules and user services reloading in the end of installation process, thus guest system reboot after Guest Additions (7.0.8 and newer) upgrade is no longer required in general case
Linux Guest Additions: Fixed vboxvideo build issue with RHEL 8.7, 9.1 and 9.2 kernels (bugs #21446 and #21450)

New in Oracle VM VirtualBox 7.0.6 Build 155176 (Jan 17, 2023)

New in Oracle VM VirtualBox 7.0.4 Build 154605 (Nov 18, 2022)

New in Oracle VM VirtualBox 7.0.2 Build 154219 (Oct 25, 2022)

New in Oracle VM VirtualBox 7.0.0 Build 153978 (Oct 11, 2022)

This is a major update. The following major new features were added:
Virtual machines can be fully encrypted now, including the VM config logs and saved states (CLI only for now)
OCI: Cloud virtual machines can be added to Virtual Machine Manager and controlled as local VMs
OCI: Cloud networks can now be configured via Network Manager tool same way as it is done for Host-only and NAT networks
GUI: Added a new utility similar to "top" or "resource monitor" which lists peformance statistics (CPU usage, RAM usage, disk I/O rate, etc.) of running guests
GUI: Reworked the new vm wizard to integrate the unattended guest OS installation and to have a more streamlined work flow
GUI: Added a new help viewer widget which enables the user manual to be navigated and searched
GUI: Adding new notification center unifying most of running progresses and error reporting around the GUI
GUI: Improved theme support on all platforms. Linux and macOS use native engine while for Windows host it is separately implemented.
GUI: Large icon update.
Audio recording: Now using Vorbis as the default audio format for WebM containers. Opus is no longer being used.
Audio: Added "default" host driver type to make it possible to move VMs (appliances) between different platforms without the need of changing the audio driver explicitly. When the "default" driver is selected, the best audio backend option for a platform will be used. This is the default for newly created VMs.
Guest Control: Implemented initial support for automatic updating of Guest Additions for Linux guests
Guest Control: Implemented ability to wait for and/or reboot the guest when updating Guest Additions via VBoxManage
VBoxManage: Added Guest Control "waitrunlevel" sub-command to make it possible to wait for a guest to reach a certain run level
Windows hosts: Added experimental support of running autostarted VMs in session 0, to allow running VMS even when a usser is not being logged in (disabled by default, please consult the manual)
macOS host: Dropped all kernel extensions. VirtualBox relies fully on the hypervisor and vmnet frameworks provided by Apple now. At the moment the implementation lacks "Internal Networking" functionality. This will be provided at a later date.
macOS host: Providing a Developer Preview package for systems with an Apple silicon CPU. This is unsupported work in progress, and is known to have very modest performance.
Linux Guest Additions: Reworked guest screen re-size functionality, added basic integration with some of guest Desktop Environments
Devices: Implemented new 3D support based on DirectX 11 (and DXVK on non Windows hosts)
Devices: Added virtual IOMMU devices (Intel and AMD variant)
Devices: Added virtual TPM 1.2 and 2.0 devices
Devices: The EHCI and XHCI USB controller devices are now part of the open source base package
EFI: Added support for Secure Boot
Debugging: Added experimental support for guest debugging through GDB and highly experimental support for guest debugging through KD/WinDbg
In addition, the following items were fixed and/or added:
OCI: Cloud networking functionality is enhanced for local VMs, now local VMs could be connected to cloud networking
GUI: Improved behavior of the virtual machine list and various VM related tools in case multiple items are selected
GUI: On available platforms, added a new option to disable the host's screensaver
GUI: Reworked global preferences, machine settings and the wizards to improve stability and usability
GUI: Improving mouse handling in multi-monitor case on X11 platform
GUI: Medium enumeration engine was reworked to improve permormance
GUI: NAT Network stuff was moved from global preferences to global Network Manager tool
GUI: Extension Pack Manager was moved from global preferences to global tools
GUI: Improved overall accessibility
GUI: Migrating to recent Qt versions.

New in Oracle VM VirtualBox 6.1.38 Build 153438 (Sep 2, 2022)

New in Oracle VM VirtualBox 6.1.36 Build 152435 (Jul 20, 2022)

VMM: Fixed possible Linux guest kernel crash when configuring Speculative Store Bypass for a single vCPU VM
GUI: In the storage page of the virtual machine settings dialog, fixed a bug which disrupted mouse interaction with the native file selector on KDE
NAT: Prevent issue when host resolver incorrectly returned NXDOMAIN for unsupported queries (bug #20977)
Audio: General improvements in saved state area
Recording: Various fixes for settings handling
VGA: Performance improvements for screen updates when VBE banking is used
USB: Fixed rare crashes when detaching a USB device
ATA: Fixed NT4 guests taking a minute to eject CDs
vboximg-mount: Fixed broken write support (bug #20896)
SDK: Fixed Python bindings incorrectly trying to convert arbitrary byte data into unicode objects with Python 3, causing exceptions (bug #19740)
API: Fixed an issue when virtual USB mass storage devices or virtual USB DVD drives are added while the VM is not running are by default not marked as hot-pluggable
API: Initial support for Python 3.10
API: Solaris OS types cleanup
Windows host: Fixed regression in 6.1.32 leading to guest hangs when Hyper-V is used (bug #20787)
Windows host: Fixed possible issues with saving and restoring VM state when using Hyper-V/NEM mode
Linux and Solaris hosts: Allow to mount shared folder if it is represented as a symlink on a host side (bug #17491)
Linux Host and Guest drivers: Introduced initial support for kernels 5.18, 5.19 and RHEL 9.1 (bugs #20914, #20941)
Linux Host and Guest drivers: Better support for kernels built with clang compiler (bugs #20425 and #20998)
Solaris Guest Additions: General improvements in installer area
Solaris Guest Additions: Fixed guest screen resize in VMSVGA graphics configuration
Linux and Solaris Guest Additions: Fixed multi-screen handling in VBoxVGA and VBoxSVGA graphics configuration
Linux and Solaris Guest Additions: Added support for setting primary screen via VBoxManage
Linux and Solaris Guest Additions: Fixed X11 resources leak when resizing guest screens
Linux and Solaris Guest Additions: Fixed file descriptor leak when starting a process using guest control (bug #20902)
Linux and Solaris Guest Additions: Fixed guest control executing processes as root
Linux Guest Additions: Improved guests booting time by preventing kernel modules from being rebuilt when it is not necessary (bug #20502)
Windows Guest Additions: Fixed VBoxTray crash on startup in NT4 guests on rare circumstances

New in Oracle VM VirtualBox 6.1.34 Build 150636 (Apr 20, 2022)

New in Oracle VM VirtualBox 6.1.32 Build 149290 (Jan 20, 2022)

New in Oracle VM VirtualBox 6.1.30 Build 148432 (Nov 23, 2021)

New in Oracle VM VirtualBox 6.1.28 Build 147628 (Oct 20, 2021)

New in Oracle VM VirtualBox 6.1.26 Build 145957 (Jul 30, 2021)

New in Oracle VM VirtualBox 6.1.24 Build 145767 (Jul 20, 2021)

New in Oracle VM VirtualBox 6.1.22 Build 144080 (Apr 30, 2021)

New in Oracle VM VirtualBox 6.1.20 Build 143896 (Apr 20, 2021)

New in Oracle VM VirtualBox 6.1.18 Build 142142 (Jan 20, 2021)

New in Oracle VM VirtualBox 6.1.16 Build 140961 (Oct 22, 2020)

New in Oracle VM VirtualBox 6.1.14 Build 140239 (Sep 6, 2020)

New in Oracle VM VirtualBox 6.1.12 Build 139181 (Jul 17, 2020)

New in Oracle VM VirtualBox 6.1.10 Build 138449 (Jun 8, 2020)

New in Oracle VM VirtualBox 6.1.8 Build 137981 (May 17, 2020)

New in Oracle VM VirtualBox 6.1.6 Build 137129 (Apr 15, 2020)

New in Oracle VM VirtualBox 6.1.4 Build 136177 (Feb 21, 2020)

New in Oracle VM VirtualBox 6.1.2 Build 135662 (Jan 15, 2020)

New in Oracle VM VirtualBox 6.1.0 Build 135406 (Dec 12, 2019)

Implemented support for importing a virtual machine from Oracle Cloud Infrastructure
Extended support for exporting a virtual machine to Oracle Cloud Infrastructure, allowing the creation of multiple virtual machines without re-uploading. Also added option to export a VM to the cloud using the more efficient variant "paravirtialized", and to specify free-form tags for cloud images
Virtualization core: Support for nested hardware-virtualization on Intel CPUs (starting with 5th generation Core i, codename Broadwell), so far tested only with guest running VirtualBox
Graphics: New style 3D support (with VBoxSVGA and VMSVGA) remains, old style 3D support (with VBoxVGA) has been completely removed
Shared Clipboard: Implemented experimental support for file transfers (Windows hosts/guests only at the moment). Needs to be enabled via VBoxManage (disabled by default). In addition, the following items were fixed and/or added:
Virtualization core: Drop recompiler, i.e. running VMs now needs a CPU supporting hardware virtualization
Runtime: Works now on hosts with many CPUs (limit now 1024)
Appliance and Cloud Import: Add field for defining firmware type (not part of OVF spec and thus manual in the Appliance case, for OCI it is automatically taken from the instance information)
GUI: Improved the VISO creation and file manager dialogs
GUI: Virtual machine list of VirtualBox Manager was improved. Machine groups are now more obvious visually and VM search functionality has been improved. Global Tools element can now be pinned in place, to avoid scrolling it with rest of machine list
GUI: Virtual machine details pane is now extended with embedded editors for selected VM attributes, allowing user to edit them on-the-fly byi clicking corresponding hyper-links without opening VM settings dialog
GUI: Details pane provides more complete information
GUI: Internal medium enumeration routines were optimized to reduce the load and optimize the performance in cases when user have lots of media registered. Also, we again allowed to add existing media (and create new) via Virtual Media Manager
GUI: More consistent medium selection (both showing known images and allowing to select using the file picker)
GUI: VM storage settings page was adjusted a bit in usability regard. User is now allowed to change controller bus type and can move attachments between the controllers by using drag and drop
GUI: Storage and Network settings pages bug-fixes and usability optimization
GUI: Added a new soft (virtual) keyboard enabling arbitrary keyboard input to guests, including multimedia keys
GUI: Fixed crash in cloud related wizards when accessibility functionality was enabled
GUI: Show VM CPU load as part of status bar CPU indicator
GUI: Improved and extended the Session Information dialog
GUI: Fixed/improved mouse pointer scaling
GUI: Some issues related to mouse integration cursor scaling were addressed (bug #14366), more to go
GUI: Fix and unify geometry save/restore in various dialogs
GUI: Added the missing restriction options for disabling new functionality such as the VISO creator
GUI: Popup messages mouse click fix
Graphics: Remove 3D support for VBoxVGA (old one deprecated with 6.0)
Graphics: Additional texture format support on Windows host
Graphics: Improved fix for flickering on Windows host
Input: Added support for horizontal scrolling in the PS/2 mouse device using the IntelliMouse Explorer protocol. Note that this support is automatically used by Linux guests but not by Windows guests
vboximg-mount: Experimental support for direct read-only access to NTFS, FAT and ext2/3/4 filesystems inside a disk image without the need for support on the host
vboximg-mount: Now also available on Linux host
Storage: Experimental support for virtio-scsi, for both hard disks and optical drives (including boot support in BIOS)
Storage: For optical drive emulation fix empty host drive crash
USB: Improvements for EHCI controller implementation
USB: Filter can now specify port path, uniquely identifying a port in a system
NAT: Fix TFTP OACK response, send only if request has options
NAT Network: Use non-blocking sockets on Linux for accepted incoming connections (port forwarding)
PCnet-ISA: Added new network adapter type, currently CLI only
Audio: Allow changing the host audio backend while the VM is in saved state
ACPI: Report NVMe controller
VGA: Improve hardware and BIOS compatibility
VBoxSVGA/VMSVGA: Support YUV2 and related texture formats with hosts using OpenGL (macOS and Linux), which accelerates video playback when 3D is enabled by delegating the color space conversion to the host GPU
VBoxSVGA/VMSVGA: Several drawing fixes for the 3D case
VMSVGA 3D: Fixed OpenGL compressed textures
VBoxManage: More cloud functionality coverage, e.g. starting a cloud instance
VBoxManage: As part of the guest control feature support moving multiple source files/directories to a target directory
Guest Control/VBoxManage: Added support for specifying multiple sources when renaming guest files
VBoxManage: Show "unrestricted guest" and "nested HW virtualization" CPU features when listing the host information
API: Reduce the amount of leftovers from Move VM function
Shared Clipboard: Implemented experimental support for file transfers for Linux hosts on Windows guests (disabled by default)
SMBIOS: Store system UUID in little endian format which is the default for new VMs, while existing VMs stick to the old VirtualBox behavior of storing them in big endian format for backwards compatibility to avoid breaking the activation status of Windows VMs
VBoxSDL frontend: Fixed running on Windows hosts
macOS host: Fix VM crashes (most visible on macOS Catalina)
Linux host: Improve vboxweb systemd service dependency information
Linux host: Drop PCI passthrough, the current code is too incomplete (cannot handle PCIe devices at all), i.e. not useful enough
Linux host and guest: Support Linux 5.4 (bug #18945)
Linux host and guest: Force disabling of kernel module signing during build (user can do it afterwards)
Windows host: When possible, distinguish USB devices by port number; helps with accurate capturing of devices when multiple otherwise identical devices are connected
Windows Guest Additions: Many fixes for drawing problems in the driver for VBoxSVGA
Windows Guest Additions: Fixes for legacy VBoxVGA adapter, restore previously working cases
Windows Guest Additions: Restore VHWA functionality for VBoxSVGA
Windows guest: DXVA implementation for WDDM driver
Documentation: Updated supported host operating systems, added few new manual pages (more to come later)
EFI: Switch to newer firmware code base and add NVRAM support, should improve compatibility with OSes significantly
EFI: Added support for booting from APFS
EFI: Added support for non-standard SATA and NVMe boot device paths created by OS X
EFI: Modified updated EFI code base to support older OS X guests again

New in Oracle VM VirtualBox 6.0.14 Build 133895 (Oct 17, 2019)

New in Oracle VM VirtualBox 6.0.12 Build 133076 (Sep 4, 2019)

New in Oracle VM VirtualBox 6.0.10 Build 132072 (Jul 17, 2019)

New in Oracle VM VirtualBox 6.0.8 Build 130520 (May 15, 2019)

New in Oracle VM VirtualBox 6.0.6 Build 130049 (Apr 17, 2019)

Virtualization core: nested AMD virtualization fixes
User interface: fixed copying directories in file manager
User interface: fixed operation progress in file manager when copying content
User interface: fixed operation progress when deleting snapshots
User interface: fixed unattended installation of recent Ubuntu guests
User interface: various additional improvements
Storage: fixed loading saved states for LsiLogic devices (6.0.0 regression; bug #18263)
Storage: fixed fixed reading certain QCOW2 images and support version 3 of the format readonly
Storage: Improved IDE PCI emulation to allow NetWare IDE drivers to use bus-mastering
Graphics: Improved VMSVGA support to work with old X servers which previously showed only a badly scrambled screen
Graphics: fixed invisible mouse cursor with VMSVGA emulation and without mouse integration (bug #18239)
Graphics: make EFI work with VMSVGA emulation (bug #18282)
Graphics: remember last guest screen size VMSVGA emulation
Graphics: fix RDP to guests using VMSVGA emulation
Graphics: various additional VMSVGA emulation fixes
Audio: implemented audio device enumeration for the DirectSound backend
Network: fixed unwanted padding bytes in Windows host adaptor network packets (bug #18202 and bug #18355)
Serial: fixed possible crash on Windows when using a host device (6.0.0 regression; bug #18319)
Serial: fixed loopback handling in the emulation causing garbage to be sent during boot with Linux guests (6.0.0 regression; bug #18319)
Shared folders: fixed duplicate folders after restoring a saved state (bug #18373 and other)
Drag and drop: fixed copying files from guest host (bug #18305)
Recording: fixed modifying settings via VBoxManage (bug #18494)
VBoxManage: crash fix (bug #18341)
Fixed hangs during failed virtual machine start-up
Windows host: fix unwanted wake-ups from standby (bug #18549)
Windows host: disallow Pause as a host key (bug #18482)
Linux host and guest: support Linux 5.0 and 5.1, thank you Valdis Kletnieks (see also bug #18515)
Linux host: support kernel 4.4.169 (bug #18315)
Linux host: fix logging when building Linux kernel modules (bug #18226)
Linux host: clarified building Linux host drivers with secure boot (bug #18312)
FreeBSD host: compilation fixes
Installers: reduced size of packages
Web services: work with Java 11
LibreSSL compilation fix, thank you Stefan Strogin
Windows guests: fixed running applications which use complex display topologies with WDDM driver, fixed Skype for Business hangs (bug #17092)
Windows guests: fixed an occasional guest crash with WDDM driver and VBoxSVGA adapter (bug #18369)
Windows guests: shared folder file creation detection issue (bug #9276)
Linux guests: shared folder performance and reliability improvements and missing features (bugs #17360, #819)
OS/2 guests: shared folder fixes (bug #18376 and bug #18379)

New in Oracle VM VirtualBox 6.0.4 Build 128413 (Jan 29, 2019)

New in Oracle VM VirtualBox 6.0.2 Build 128162 (Jan 15, 2019)

New in Oracle VM VirtualBox 6.0.0 Build 127566 (Dec 19, 2018)

This is a major update. The following major new features were added:
Implemented support for exporting a virtual machine to Oracle Cloud Infrastructure
User interface: greatly improved HiDPI and scaling support, including better detection and per-machine configuration
Major rework of user interface with simpler and more powerful application and virtual machine set-up
User interface: a new file manager enabling user to control the guest file system and copy files between host and guest.
Graphics: major update of 3D graphics support for Windows guests, and VMSVGA 3D graphics device emulation on Linux and Solaris guests
Added support for surround speaker setups (as used by Windows 10 Build 1809)
Added utility vboximg-mount on Apple hosts to access the content of guest disks on the host
Added support for using Hyper-V as the fallback execution core on Windows host, to avoid inability to run VMs at the price of reduced performance
In addition, the following items were fixed and/or added:
Execution core: fixed single-stepping in certain circumstances (bug #17316)
User interface: video and audio recording can now be separately enabled
Audio/Video recording fixes and improvements
Audio: better support for attaching and detaching remote desktop connections
Serial port emulation fixes
Serial ports: allow changing the serial port attachment while a machine is running (bug #6115)
Networking: Added a workaround for older guests which do not enable bus mastering for the virtio PCI device
Networking: fixed wrong RCODE from DNS AAAA query with --natdnshostresolver1 (bug #18171)
iSCSI: In cases where there is no ambiguity, the LUN of an iSCSI target is automatically determined, for targets with non-zero LUNs
Transparently resize disk images when merging if possible
VBoxManage: support for DHCP options
Fixed VNC/RDP (bug 18153)
Guest Control: various new interfaces and features (see SDK documentation)
Linux hosts: support Linux 4.20 (thank you Larry Finger)
Solaris: installer fixes
Shared folders: performance improvements
Guest Additions: improved shared folder auto-mounting
Windows Guest Additions: fix incorrect tablet co-ordinate handling with recent Windows 10 builds
Linux Additions: fix for building vboxvideo on EL 7.6 standard kernel, contributed by Robert Conde (bug #18093)
Linux guests: support Linux 4.20 (thank you Larry Finger)
Linux guests: support VMSVGA in the Linux and X11 Additions
MacOS Guest Additions: initial support
OS/2 Guest Additions: initial shared folder support
BIOS fixes
ACPI: Up to four custom ACPI tables can now be configured for a VM

New in Oracle VM VirtualBox 6.0.0 Build 127054 Beta 3 (Dec 3, 2018)

New in Oracle VM VirtualBox 6.0.0 Build 126642 Beta 2 (Nov 16, 2018)

New in Oracle VM VirtualBox 5.2.22 Build 126460 (Nov 9, 2018)

New in Oracle VM VirtualBox 6.0.0 Build 125994 Beta 1 (Oct 23, 2018)

New in Oracle VM VirtualBox 5.2.20 Build 125813 (Oct 17, 2018)

New in Oracle VM VirtualBox 5.2.18 Build 124319 (Aug 15, 2018)

New in Oracle VM VirtualBox 5.2.16 Build 123759 (Jul 18, 2018)

New in Oracle VM VirtualBox 5.2.14 Build 123301 (Jul 2, 2018)

New in Oracle VM VirtualBox 5.2.12 Build 122591 (May 11, 2018)

New in Oracle VM VirtualBox 5.2.10 Build 122088 (Apr 18, 2018)

New in Oracle VM VirtualBox 5.2.8 Build 121009 (Feb 28, 2018)

New in Oracle VM VirtualBox 5.2.6 Build 120293 (Jan 17, 2018)

New in Oracle VM VirtualBox 5.2.4 Build 119785 (Dec 19, 2017)

New in Oracle VM VirtualBox 5.2.2 Build 119230 (Nov 24, 2017)

New in Oracle VM VirtualBox 5.2.0 Build 118431 (Oct 18, 2017)

This is a major update. The following major new features were added:
VM export to Oracle Cloud (OPC)
Unattended guest installation (bug #5810; see the manual for more information)
Overhauled VM selector GUI (improved tools VM / global tools handling, new icons)
Added experimental audio support for video recording
In addition, the following items were fixed and/or added:
VMM: fixed reason for recent Linux kernels on also recent CPU models warning about "XSAVE consistency problem"
GUI: Virtual Media Manager rework allowing to manage media attributes, like size, location, type and description
GUI: Host-only Network Manager implemented to simplify managing corresponding networks and their attributes
GUI: Snapshot Pane rework allowing to manage snapshot attributes, like name and description; reworked snapshot details which looks more clear, corresponds to VM Details pane and reflects current VM state difference according to last snapshot taken
GUI: Audio settings extended with possibility to enable/disable audio input/output; corresponding changed were done to Audio and Video Capture settings pages; VM Devices menu and status-bar extended with corresponding actions and indicator as well
GUI: improvements with accessibility support
GUI: Fixed double mouse cursor when using mouse integration without Guest Additions, actually a Qt 5.6 bug fixed with QT 5.6.3 (Mac OS X hosts only; bug #15610)
Audio: implemented (optional) device enumeration support for audio backends
Audio: implemented support for host device callbacks (e.g. when adding or removing an audio device)
Audio: HDA emulation now uses asynchronous data processing in separate threads
Audio: implemented ability to enable or disable audio input / output on-the-fly
Storage: implemented support for CUE/BIN images as CD/DVD media including multiple tracks
Storage: implemented support for the controller memory buffer feature for NVMe
Storage: first milestone of the I/O stack redesign landed
E1000: Fix for Windows XP freeze when booting with unplugged cable
NAT network: do not skip some port forwarding setup when multiple VMs are active (Windows hosts only; bug #17041)
Serial: fixed extremely rare misbehavior on VM poweroff
EFI: better video mode handling, supporting custom video modes and easier configuration (bug #6783)
BIOS: properly report floppy logical sectors per track for unusual formats
BIOS: update ATA disk parameter table vectors only if there is actually a corresponding ATA disk attached
PXE: speed up booting by better handling pending packets when the link is not up yet
VBoxManage: handle CPUID sub-leaf overrides better
Windows Additions: fix several 3D related crashes
Solaris hosts: allow increasing MTU size for host-only adapter to 9706 bytes to support jumbo frames
Linux Additions: on systems using systemd, make sure that only the Guest Additions timesync service is active
many unlisted fixes and improvements

New in Oracle VM VirtualBox 5.1.30 Build 118389 (Oct 16, 2017)

New in Oracle VM VirtualBox 5.2.0 Build 118201 RC 1 (Oct 2, 2017)

New in Oracle VM VirtualBox 5.2.0 Build 118015 Beta 3 (Sep 16, 2017)

New in Oracle VM VirtualBox 5.1.28 Build 117968 (Sep 14, 2017)

New in Oracle VM VirtualBox 5.2.0 Build 117563 Beta 2 (Aug 28, 2017)

New in Oracle VM VirtualBox 5.2.0 Build 117406 Beta 1 (Aug 4, 2017)

New in Oracle VM VirtualBox 5.1.26 Build 117224 (Jul 28, 2017)

New in Oracle VM VirtualBox 5.1.24 Build 117012 (Jul 18, 2017)

This is a maintenance release. The following items were fixed and/or added:
VMM: mask the VME CPUID capability on AMD Ryzen processors for now to make certain guests works, for example Windows XP
VMM: emulate more SSE2 instructions
VMM: properly clear the TF and AC flags when dispatching real-mode interrupts
GUI: fixes to make the mini-toolbar work with recent versions of KDE / Plasma (bug #16325)
GUI: fixed a potential crash when a VM with multiple screens is running in full screen / seamless mode and a host screen is removed, for example when connecting to the host via RDP
GUI: fixed initial size hints for guests which set intermediate sizes before responding (bug #16593)
GUI: prevent stopped screen updates or black screen on reboot in a multi-screen setup under certain conditions
Audio: many improvements for Windows 10 guests (bugs #15189, #15925, #16170, #16682, #16794 and others)
Storage: fixed possible crash when using Intels SPDK
API: use the correct file name of the VM machine state if the VM settings directory is renamed, for example during grouping / ungrouping a VM (bugs #16075 and #16745)
API: return the correct error code if powering up a VM fails
API: video recording did not automatically start at VM start when enabled in the VM settings (bug #16803)
API: when relocating a medium, check that the target path is fully qualified
EFI: fix for VMs with more than 3504MB RAM (bug #11103)
Host-only adapter: correctly determine IPv4 netmasks on Windows hosts (bug #16826)
NAT network: properly do the refcounting for starting / stopping the NAT / DHCP services if the NAT network is changed while the adapter network connection type is anything else but NAT network
VBoxManage: fixed controlvm videocapfile (bug #16779)
Windows hosts: fixed crashes if driver verifier is enabled (bug #15741)
Linux / Mac OS X hosts: more fixes for loading shared libraries (5.1.20 regression; bugs #16778, #16693)
Linux hosts / guests: Linux 4.12 fixes (bugs #16725, #16800)
Linux hosts / guests: reduce the kernel stack consumption for Linux kernels with CONFIG_CPUMASK_OFFSTACK defined
Linux hosts / guests: fixes for kernel modules built with gcc-7 (bug #16772)
Linux hosts / guests: Linux 4.13 fix (bug #16887)
Linux hosts: don't depend on net-tools on newer distributions as this package is deprecated in favour of iproute (bug #16764)
Linux hosts: make 2D video acceleration available for older Linux distributions (5.1 regression; bug #16858)
Linux Additions: fix for dynamic resizing with Oracle Linux 6 with UEK4
Linux Additions: make Fedora 25 and 26 Alpha work when 3D pass-through is enabled
Linux Additions: no longer recommend removing distribution- installed Additions if they are updated to our guidelines

New in Oracle VM VirtualBox 5.1.22 Build 115126 (Apr 29, 2017)

New in Oracle VM VirtualBox 5.1.20 Build 114628 (Apr 19, 2017)

New in Oracle VM VirtualBox 5.1.18 Build 114002 (Mar 16, 2017)

New in Oracle VM VirtualBox 5.1.16 Build 113841 (Mar 8, 2017)

The following items were fixed and/or added:
VMM: don't access the MSR_IA32_SMM_MONITOR_CTL MSR if dual-monitor treatment is not available (KVM workaround, bug #14965)
VMM: another fix for handling certain MSRs on ancient CPUs without VT-x support for MSR bitmaps
VMM: fixed VERR_SSM_LOAD_CPUID_MISMATCH errors when restoring a saved state with SMP guests on hosts without the CPUID/HTT bit set (bug #16428)
VMM: fixed a bug in call gate emulation
VMM: FWAIT instruction fix
VMM: fixed a sporadic guest hang under certain conditions
GUI: hide the mini-toolbar from the taskbar and the pager on certain X11 hosts
GUI: better error handling on the global settings / network / host-only / DHCP server settings
GUI: fixes for full-screen with multiple screens
Host-only Network: fixed host-only adapter creation issue preventing VirtualBox installation on Windows 10 hosts (bug #16379)
NAT network: fixed two potential crashes in the DHCP server
ICH9: fixed incorrect initialization of the primary bus for PCI bridges (5.1.14 regression)
Storage: LsiLogic fix for Windows 10
USB: fixed not being able to attach certain USB devices having invalid characters in the device strings (5.0.18 regression; bug #15956)
USB: several fixes for the USB/IP support (bug #16462)
VBoxSVC: fixed another crash during shutdown under rare circumstances
VBoxSVC: fixed a stack overflow on (Windows debug builds only; bug #16409)
OVF: when importing an appliance handle more than 10 network adapters if the OVA was created by VirtualBox (bug #16401)
OVF: fixes for exporting and importing appliances with many disks (bug #16402)
VBoxManage: fixed regression with modifyhd --resize (bug #16311)
rdesktop-vrdp: source code tarball fixes
Linux Installers: do not rebuild kernel modules unnecessarily (bug #16408)
Linux hosts: added an action for opening the VM manager window to the .desktop file
Linux hosts / guests: Linux 4.11 compile fixes (bug #16506)
Linux Additions: added vboxsf FS modules alias (bug #16404)
Linux Additions: fix for the shared folders kernel module to compile on Linux 4.10
Linux Additions: properly install the Linux kernel module override rule on distributions without /etc/depmod.d
Windows Additions: fixed a crash with recent Windows 10 builds if 3D is disabled (bug #15973)

New in Oracle VM VirtualBox 5.1.14 Build 112924 (Jan 17, 2017)

New in Oracle VM VirtualBox 5.1.12 Build 112440 (Dec 21, 2016)

New in Oracle VM VirtualBox 5.1.10 Build 112026 (Nov 22, 2016)

New in Oracle VM VirtualBox 5.1.8 Build 111374 (Oct 19, 2016)

GUI: fixed keyboard shortcut handling regressions (Mac OS X hosts only; bugs #15937 and #15938)
GUI: fixed keyboard handling regression for separate UI (Windows hosts only; bugs #15928)
NAT: don't exceed the maximum number of "search" suffixes. Patch from bug #15948.
NAT: fixed parsing of port-forwarding rules with a name which contains a slash (bug #16002)
NAT Network: when the host has only loopback nameserver that cannot be mapped to the guests (e.g. dnsmasq running on 127.0.1.1), make DHCP supply NAT Network DNS proxy as nameserver.
Bridged Network: prevent flooding syslog with packet allocation error messages (bug #15569)
Audio: now using Audio Queues on Mac OS X hosts
Audio: fixed recording with the PulseAudio backend (5.1 regression)
Audio: various bugfixes
Snapshots: fixed regression in 5.1.4 for deleting snapshots with several disks (bug #15831)
Snapshots: crash fix and better error reporting when snapshot deletion failed
Storage: some fixes for the NVMe emulation with Windows guests
API: fixed initialization of SAS controllers (bug #15972)
Build system: make it possible to build VBox on systems which default to Python 3
Windows hosts: detect certain cases of REGDB_E_CLASSNOTREG errors and print a helpful error message
Windows hosts: adapted to changes in Windows 10 build 14901 (bug #15944)
Windows hosts: better support for processor groups on Windows 7 and later which is required on certain hosts with many CPUs
Windows installer / Additions: added option to prevent creating of start menu items (bug #15922)
Windows Additions / VGA: if the guest's power management turns a virtual screen off, blank the corresponding VM window rather than hide the window
Windows Additions: fixed a generic bug which could lead to freezing shared folders (bug #15662)
Linux hosts / guests: fix for kernels with CONFIG_CPUMASK_OFFSTACK set (bug #16020)
Linux Additions: don't require all virtual consoles be in text mode. This should fix cases when the guest is booted with a graphical boot screen (bug #15683)
Linux Additions: added depmod overrides for the vboxguest and vboxsf kernel modules to fix conflicts with modules shipped by certain Linux distributions
X11 Additions: disable 3D on the guest if the host does not provide enough capabilities (bug #15860)

New in Oracle VM VirtualBox 5.1.6 Build 110634 (Sep 12, 2016)

GUI: fixed issue with opening '.vbox' files and it's aliases
GUI: keyboard grabbing fixes (bugs #15771 and #15745)
GUI: fix for passing through Ctrl + mouse-click (Mac OS X hosts only; bug #15714)
GUI: fixed automatic deletion of extension pack files (bugs #11352 and #14742)
USB: fixed showing unknown device instead of the manufacturer or product description under certain circumstances (5.1.0 regression; bug #15764)
XHCI: another fix for a hanging guest under certain conditions as result of the fix for bug #15747, this time for Windows 7 guests
Serial: fixed high CPU usage with certain USB to serial converters on Linux hosts (bug #7796)
Storage: fixed attaching stream optimized VMDK images (bug #14764)
Storage: reject image variants which are unsupported by the backend (bug #7227)
Storage: fixed loading saved states created with VirtualBox 5.0.10 and older when using a SCSI controller (bug #15865)
Storage: fixed broken NVMe emulation if the host I/O cache setting is enabled
Storage: fixed using multiple NVMe controllers if ICH9 is used
NVMe: fixed a crash during reset which could happen under certain circumstances
Audio: fixed microphone input (5.1.2 regression; bugs #14386 and #15802)
Audio: fixed crashes under certain conditions (5.1.0 regression; bug #15887 and others)
Audio: fixed recording with the ALSA backend (5.1 regression)
Audio: fixed stream access mode with OSS backend (5.1 regression, thanks to Jung-uk Kim)
E1000: do also return masked bits when reading the ICR register, this fixes booting from iPXE (5.1.2 regression; bug #15846)
BIOS: fixed 4bpp scanline calculation (bug #15787)
API: relax the check for the version attribute in OVF/OVA appliances (bug #15856)
Windows hosts: fixed crashes when terminating the VM selector or other VBox COM clients (bug #15726 and others)
Linux Installer: fixed path to the documentation in .rpm packages (5.1.0 regression)
Linux Installer: fixed the vboxdrv.sh script to prevent an SELinux complaint (bug #15816)
Linux hosts: don't use 32-bit legacy capabilities
Linux Additions: Linux 4.8 fix for the kernel display driver (bugs #15890 and #15896)
Linux Additions: don't load the kernel modules provided by the Linux distribution but load the kernel modules from the official Guest Additions package instead (bug #15324)
Linux Additions: fix dynamic resizing problems in recent Linux guests (bug #15875)
User Manual: fixed error in the VBoxManage chapter for the getextradata enumerate example (bug #15862)

New in Oracle VM VirtualBox 5.1.4 Build 110228 (Aug 17, 2016)

New in Oracle VM VirtualBox 5.1.2 Build 108956 (Jul 21, 2016)

New in Oracle VM VirtualBox 5.1.0 Build 108711 (Jul 12, 2016)

Major new features were added:
VMM: new APIC and I/O APIC implementations that result in significantly improved performance in certain situations (for example with networking, bug #15295)
VMM: added support for Hyper-V paravirtualized debugging of Windows guests
VMM: emulate even more MMIO and shadow pagetable exits without going back to user mode
GUI: overall migration to Qt5 (bug #11775)
GUI: passive API event listener improving the VM GUI performance and response time
Audio: added HDA (High Definition Audio) support for newer Linux guests
Audio: added on-demand timers which should improve the overall performance and reduce the CPU consumption
Audio: more fine-grained volume control for the AC'97 emulation, which now also takes the master volume control into account
better support for Python 3
In addition, the following items were fixed and/or added:
VMM: activate the x2APIC by default for Linux guests
VMM: many more fixes
GUI: the Detach UI action is now a part of the VM Machine menu
GUI: reworked session information window
GUI: the new VM wizard now allows to choose the VM location for the VM which is being created
GUI: fixed location of touch events in unscaled HiDPI mode (bugs #14366, #14367)
GUI: various bugfixes and internal cleanup
Storage: use fallocate() or similar if present to speed up creating fixed-sized disk images (bug #5967)
Storage: implemented NVMHCI-compatible storage controller
Audio: various bugfixes and infrastructure improvements
E1000: implemented interrupt throttling for performance improvements
EFI: many improvements, for example allow to boot from USB
OVF: improved handling of signed manifests
API: Windows XP guests and Windows 2003 server guests now default to the E1000 T Server network card
VBoxSVC: fixed several memory leaks when handling .dmg images
Installers: ship VBoxBugReport
Windows hosts: reworked COM proxy (e.g. bug #8298)
Linux installers: no longer rely on DKMS for module rebuilding
Linux Additions: fix a problem when updating the initramfs after the guest modules are compiled (bug #15579)
Linux Additions: try to fix a problem where the OpenGL libraries where loaded by the X server when we only support X clients (bug #15574)

New in Oracle VM VirtualBox 5.1.0 Build 108607 RC 1 (Jul 8, 2016)

New in Oracle VM VirtualBox 5.0.24 Build 108355 (Jun 29, 2016)

New in Oracle VM VirtualBox 5.1.0 Build 108118 Beta 3 (Jun 17, 2016)

New in Oracle VM VirtualBox 5.0.22 Build 108108 (Jun 17, 2016)

VMM: fixes for certain Intel Atom hosts (bug #14915)
VMM: properly restore the complete FPU state for 32-bit guests on 64-bit hosts on Intel Sandy Bridge and Ivy Bridge CPUs
VMM: new I/O-APIC implementation fixing several bugs and improving the performance under certain conditions (bug #15295 and others)
VMM: fixed a potential Linux guest panic on AMD hosts
VMM: fixed a potential hang with 32-bit EFI guests on Intel CPUs (VT-x without unrestricted guest execution)
GUI: don't allow to start subsequent separate VM instances
GUI: raised upper limit for video capture screen resolution (bug #15432)
GUI: warn if the VM has less than 128MB VRAM configured and 3D enabled
Main: when monitoring DNS configuration changes on Windows hosts avoid false positives from competing DHCP renewals. This should fix NAT link flaps when host has multiple DHCP configured interfaces, in particular when the host uses OpnVPN.
Main: properly display an error message if the VRDE server cannot be enabled at runtime, for example because another service is using the same port
NAT: Initialize guest address guess for wildcard port-forwarding rules with default guest address (bug #15412)
VGA: fix for a problem which made certain legacy guests crash under certain conditions (bug #14811)
ACPI: properly notify the guest if the ACPI battery state changed
OVF: fixed import problems for some appliances using an AHCI controller created by 3rd party applications
SDK: reduced memory usage in the webservice Java bindings
Windows hosts: fixed performance regresson with SMP guests (5.0 regression)
Windows hosts: fixes for the shared clipboard
Windows hosts: Windows hardening fix
Windows Additions: fixes to retain the guest display layout when resizing or disabling the guest monitors
Linux hosts: EL 6.8 fix (bug #15411)
Linux hosts: Linux 4.7 fix (bug #15459)
Linux Additions: Linux 4.7 fixes (bug #15444)
Linux Additions: fix for certain 32-bit guests (5.0.18 regression; bug #15320)
Linux Additions: fixed mouse pointer offset (5.0.18 regression; bug #15324)
Linux Additions: made old X.Org releases work again with kernels 3.11 and later (5.0.18 regression; bug #15319)
Linux Additions: fixed X.Org crash after hard guest reset (5.0.18 regression; bug #15354)
Linux Additions: don't stop the X11 setup if loading the shared folders module fails (5.0.18 regression)
Linux Additions: don't complain if the Drag and Drop service is not available on the host
Solaris Additions: added support for X.org 1.18

New in Oracle VM VirtualBox 5.0.20 Build 106931 (Apr 28, 2016)

New in Oracle VM VirtualBox 5.0.18 Build 106667 (Apr 18, 2016)

New in Oracle VM VirtualBox 5.0.16 Build 105871 (Mar 4, 2016)

VMM: fixed a problem which could lead to a wrong guest behavior on AMD CPUs (tickets #14831 and #15186)
GUI: don't try to synchronize the HID LEDs if the VM window is not active or if it's minimized (Windows / Mac OS X hosts only; bug #14302)
GUI: prevent a crash during startup under rare conditions
GUI: sub-menu option to disable the guest-OS type overlay in the application dock icon on Mac OS X
GUI: position off-screen windows to be fully visible again on relaunch
GUI: hide the VT-x/AMD-V checkbox if raw-mode is not supported (usually Mac OS X hosts; bug #15178)
PC speaker passthrough: new experimental feature, available on Linux host only
Audio: several fixes for Mac OS X hosts + guests
Audio: properly handle default audio device changes (Windows hosts)
USB: serveral fixes for the xHCI controller (e.g. for webcam passthrough)
BIOS: fixed int15/AH=83/AL=00 function (4.2.0 regression)
iPXE: enable the HTTP download protocol on non-Linux hosts (bug #13628)
Shared folders: fixed a failure to load the saved state under certain circumstances (bug #6314)
Guest Control: added support for (cached) Active Directory authentication in case the domain controller is not reachable (anymore)
Serial ports: raised the number of serial ports per VM from 2 to 4 (bug #9109)
Serial ports: fix for the TCP/IP backend (Windows hosts only; bug #15188)
SDK: make the Python webservice API binding work again (5.0 regression)
Seamless mode: fixed a crash under certain circumstances (bug #15106)
Linux hosts: fixed the /sbin/rcvboxdrv script as well as the missing shebang in two scripts (bugs #15055 and #15057)
Linux hosts: properly uninstall Python files installed by the .run installer
Windows hosts: hardening fix required for recent Windows insider builds (bug #14052)
Windows hosts: fixed Python installation path (bug #13131)
Windows hosts: support MTU larger than 2 KB with bridged networking (bug #15140)
Windows hosts / guests: properly sign binaries using a sha-256 certificate (bug #15054)
Windows Additions: fixed guest property enumeration of logged-in users
Windows Additions: fixed sporadical failure of the graphics driver in Windows 10 guests (bug #14409)
Windows Additions: under rare circumstances no mouse movement events were delivered to the guest

New in Oracle VM VirtualBox 5.0.14 Build 105127 (Jan 19, 2016)

New in Oracle VM VirtualBox 5.0.12 Build 104815 (Dec 19, 2015)

GUI: fixed wrong scrolling behaviour in the VM selector window when a VM item is dragged out of the chooser-pane area
GUI: fixed the validation of IPv6 port-forwarding rules
GUI: suppress the first-run wizard if a CD/DVD medium is inserted using the selector UI
GUI: fixed the Ctrl+Break key sequence scan codes (bug #14927)
GUI: improved handling of text selection mouse pointer (bug #750)
Host services: fixed a crash during VM shutdown under rare conditions (5.0.6 regression; bug #14841)
Shared folders: fixed a sharing violation if a file is opened to check the attributes (Windows hosts only; bug #14450)
Webcam: passthrough fix for certain devices (Mac OS X hosts only)
XHCI: fixed broken emulation if software virtualization is used
XHCI: several fixes
3D: fixed state handling under certain conditions (bug #13487)
Audio: several fixes
BIOS: added LBA64 support for being able to boot from huge hard disks (bug #7415)
EFI: fix for Windows 10 guests
ExtPack: before installing an Extension Pack check if there are VMs running to prevent file system locking issues
rdesktop-vrdp: source code tarball fixes
Windows hosts: fixed hang when using VBoxAuthSimple library for VRDP external authentication (bug #14931)
Windows hosts: fixed a regression which prevented it to attach to a physical network adapter having TCP/IP disabled (bug #14578)
Windows hosts: fixed a regression which caused multi-port adapters to be shown as a single adapter (bugs #14558, #14622)
Windows hosts: fixed a regression which caused created host-only adapters to not appear in the list (bug #14437)
Windows hosts: fixed host-only adapter creation issues related to Windows 10 (bugs #14040, #14545)
Linux hosts: .desktop file compatibility issue (bug #14808)
Linux hosts / guests: fixes for RHEL 7.2 (bug #14866)
The command for recompiling the host kernel modules was changed again, to /sbin/rcvboxdrv setup (bug #14723)
Linux hosts: some fixes for PCI passthrough (still highly experimental)
Linux/Mac OS X hosts: fixed a VM hang during startup under certain circumstances (bug #14933)
Solaris hosts: added Python 2.7 bindings
Mac OS X hosts: fixed a possible crash when the default input or output audio device changes
Mac OS X hosts: fixed a panic under certain conditions
Linux Additions: prevent the compiler from doing dead-code elemination on vital code in guest / host communication (bug #14497)
Linux Additions: when mounting a shared folder, explicitly pass the share name so that /proc/mounts contains this name instead of 'none'
Linux Additions: workaround for a systemd problem in conjunction with SELinux which prevented to properly enable the 'vboxadd' service during while upgrading the Additions

New in Oracle VM VirtualBox 5.0.10 Build 104061 (Nov 10, 2015)

VMM: improved support for certain Intel Atom CPUs (bug #14773)
VMM: system register emulation fix (5.0 regression; bug #14515)
GUI: fixed immediate screenshot issue (bug #14108)
GUI: fixed another 3D overlay window reparenting issue when the VM is switched to fullscreen mode on X11 hosts
GUI: fixed help index (bug #14722)
GUI: fixed state synchronization issue in the VM manager window when VM was paused from its runtime window
Audio: fixed suspending/resuming audio streams on VM pause/unpause (bug #14784)
Audio: properly reset AC97 audio streams, otherwise there is silence until a non-48 kHz stream is played
Audio: fixed a small emulation quirk of the AD1980 codec of the HDA device to make recent linux guests work (bug #14653)
USB: serveral fixes for the xHCI controller
USB: fixed a crash under certain conditions on hosts with Linux kernels older than version 3.3
USB: better identification of certain USB devices
NAT: support TCP in DNS proxy (bug #14736)
NAT Network: fixed sporadic crashes on Windows hosts (bug #13899)
API: when creating differencing images (e.g. as part of a snapshot or cloning a VM) use the same disk image variant as the parent image if possible, which means that e.g. a diff image for a VMDK image split into 2 GB files will also be split (bug #14764)
API: event queue handling fixes preventing loss of certain events at runtime (e.g. new webcam attached), particularly important on Mac OS X hosts
Webcam: passthrough fix for certain devices (Windows hosts only)
VBoxManage: don't crash on snapshot restorecurrent / edit if the VM has no snapshots
VBoxManage: don't crash on controlvm addencpassword (bug #14729)
Mac OS X hosts: use the correct kernel on certain hosts
Windows hosts: fixed VRDP external authentication
Windows hosts: allow to use a shared folder path with extended-length path prefix (5.0 regression; bug #14651)
Windows hosts: fix a crash in the netfilter host driver under certain conditions (bug #14799)
Windows host installer: documented and fixed public properties which can be used to control the installation to some extent
Windows host installer: fixed not starting the actual installation when showing the version information or help dialogs
X11 Additions: added basic support for X.Org Server 1.18 (3D requires additional fixes)

New in Oracle VM VirtualBox 5.0.8 Build 103449 (Oct 20, 2015)

New in Oracle VM VirtualBox 5.0.4 Build 102546 (Sep 8, 2015)

VMM: fixed an issue with Windows 10 guest kernel debugging over the network for Hyper-V paravirtualized VMs
VMM: fixed a bug which prevented reading the saved state of the 'PATM' unit from VirtualBox 4.3.x (bug #14512)
GUI: changed default OS type for Windows from Windows XP to Windows 7
GUI: added another pre-defined guest screen resolution (bug #14384)
GUI: fixed update check which was broken due to changing the location of the root certificates (bug #13096)
GUI: fixed issues with synchronization of Caps lock / Num lock / Scroll lock on Windows hosts (bug #14302)
GUI: don't crash during VM shutdown if 2D video acceleration and 3D support are enabled (Mac OS X hosts only)
GUI: several seamless fixes for certain X11 window managers, also when used in multi-screen setups
GUI: Log window size, position and cursor-position fixes
Audio: fixed playing leftover/deprecated audio samples
Audio: fixed playing audio after suspending the host (5.0 regression; Linux hosts using the ALSA backend)
Audio: fixed playing short audio samples which were chopped off formerly
Audio: fixed distortions on OS X when the sample rate of the guest stream and host device don't match
Storage: fixed raw disk access and flat VMDK image access which would be always opened readonly (5.0.2 regression; bugs #14425, #14461)
Storage: fixed initial encryption of VDI images after they were compacted (bug #14496)
VGA: fix for certain graphics modes (bug #14516)
NAT: don't freeze while the VM is paused if the network attachment mode is changed from/to NAT with activated port forwarding
OVF: fixed duplicate USB controller entries in exported OVA/OVF (bug #14462)
Shared Folders: fixed a path separator issue (bug #14434)
Drag and drop: fixed crashes on OS X hosts when doing host-to-guest transfers
VBoxManage: another attempt to not deny changing the network adapter type at VM runtime (5.0 regression; bug #14308)
VBoxManage: fixed broken guestcontrol list command (5.0 regression)
VBoxManage: fixed broken Guest Control stdout/stderr output (5.0 regression)
Mac OS X hosts: fixed remaining problems with activated SMAP (Broadwell and later; bug #14412)
Mac OS X hosts: fixed broken 3D support (5.0.2 regression; bug #14476)
X11 Additions: fixed a number of small issues with dynamic resizing and full-screen and seamless modes.

New in Oracle VM VirtualBox 5.0.2 Build 102096 (Aug 14, 2015)

VMM: added support for guest crash report MSRs with Hyper-V paravirtualization
VMM: fixed an issue causing artifically high load averages on Linux hosts
VMM: fixed a kernel panic with thread-context hooks caused by incompatible changes made to Linux 4.2 kernels
VMM: fixed a saved state issue with VT-x/AMD-V disabled (5.0 regression; bug #14304)
VMM: fixed VERR_SUPDRV_TSC_DELTA_MEASUREMENT_FAILED Guru Meditations on certain AMD CPUs (5.0 regression; bug #14370)
VMM: fixed a crash while creating a guest core dumps via the VM debug facility (5.0 regression)
VMM: This release has AVX2 passthrough disabled on every host and AVX passthrough disabled for 64-bit VMs on 32-bit hosts. This will be properly fixed in a future 5.0.x maintenance release (see e.g. bug #14262).
GUI: fixed rare hang and crash on VM shutdown/poweroff
GUI: X11: fixed few crashes caused by the Qt alien widgets feature
GUI: X11: fixed various mini-toolbar geometry quirks like positioning, z-order, transiency issues on certain window managers (bug #14257)
GUI: X11: fixed mini-toolbar minimize button issue under certain window managers (bug #14284)
GUI: VM menu actions availability should now be properly updated on full-screen/seamless/scaled mode switches
GUI: disk encryption password validation should be performed when user confirmed the password, not after each entered symbol
GUI: do not change the VM/group selection in the VM Manager to the newly created VM if it was created by another client (e.g. VBoxManage)
GUI: Mac OS X: do not treat 'almost maximized' VM windows as 'maximized', watch for the strict window geometry instead
GUI: improve the quality in scaled mode under some circumstances (5.0 regression; bug #14303)
VBoxManage: do not deny changing the network adapter type at VM runtime (5.0 regression; bug #14308)
VRDP: allow Windows 10 RDP clients (bug #14216)
Audio: fix a possible crash on VM process termination (5.0 regression)
Storage: improved raw disk access on OS X by unmounting any accessed volume before first use and prevent any mount attempt by the host (bug #14219)
3D: basic support for saving/restoring display lists
Drag and drop: fixed guest to host transfers on OS X hosts
Drag and drop: fixed memory leak on Windows guests
Shared Folders: fixed a problem with accessing CIFS shares (bug #14252)
Shared Folders: improved path conversion between hosts and guests with different path separators (bug #14153)
API: skip resetting of immutable media when the VM in saved state is started (bug #13957)
API: fixed method for setting medium IDs which used zero (invalid) UUIDs instead random (valid) UUIDs if no UUIDs were passed (bug #14350)
API: for Windows host fix detection of API client crashes which have a session open
OVF: properly export all VBox features including the setting for paravirtualization (bug #14390)
Mac OS X hosts: El Capitan USB fixes
Windows hosts: fixed crash when opening Windows dialogs from the VM process on Windows 10 (bug #14351)
Windows hosts: fixed host-only adapter creation issues on Windows 10 (bug #14040)
Windows hosts: fixed audio on Windows 10 (bug #14432)
Linux hosts: more fixes for activated SMAP on Linux 3.19 and newer (Broadwell and later; bug #13961)
Linux hosts: check then name space before attaching to a host network interface (bug #13795)
Linux Additions: Linux 4.2 fixes (bug #14227)
Linux Additions: improved the performance of stat() to speed up certain file operations on shared folders
Windows Additions: fixed a potential crash in the WDDM driver with Windows 10 (bug #14190)
Solaris Additions: added support for X.Org Server 1.17
X11 Additions: various seamless mode fixes, including invisible windows under LXDE.

New in Oracle VM VirtualBox 5.0.0 Build 101573 (Jul 9, 2015)

The following major new features were added:
Paravirtualization support for Windows and Linux guests to improve time-keeping accuracy and performance (see the manual for more information)
Make more instruction set extensions available to the guest when running with hardware-assisted virtualization and nested paging. Among others this includes: SSE 4.1, SSE4.2, AVX, AVX-2, AES-NI, POPCNT, RDRAND and RDSEED
xHCI Controller to support USB 3 devices (see the manual for more information)
Drag and drop support (bidirectional) for Windows, Linux and Solaris guests
Disk image encryption (see the manual for more information)
VMs can now be started in separate mode. The VM process is started headless while the frontend runs as a separate process which can be terminated without stopping the VM.
GUI: VM guest-content scaling support (including 3D acceleration)
GUI: New User Interface settings page for customizing status-bar, menu-bar and guest-content scaling
GUI: New Encryption settings tab for customizing encryption options for disk images
GUI: HiDPI support including application icons and optional unscaled HiDPI output on Mac OS X (including 3D acceleration)
GUI: Hotplugging support for SATA disks
New, modular audio architecture for providing a better abstraction of the host audio backends
Support for the NDIS6 networking framework on Windows (default on Vista and later)
In addition, the following items were fixed and/or added:
VMM: improved timing on Solaris hosts with older VT-x hosts without preemption timers
VMM: further improvements for TSC frequency measurements and guest timekeeping
VMM: debug facility now includes the guest CPU's FPU/SSE/extended state in the core dump
VMM: fixed a hang under rare conditions on 32-bit hosts
VMM: several fixes
GUI: improved HID LEDs synchronization for Mac and Windows hosts. The physical LEDs state now restored together with the VM state.
GUI: take the guest screen aspect ratio into account for the preview window
GUI: provide direct access to storage media in the VM selector
GUI: allow to save the VM state from the selector even if the VM is already paused
VBoxManage: when exporting an appliance, support the suppression of MAC addresses, which means they will be always recreated on import, avoiding duplicate MAC addresses for VMs which are imported several times
VBoxManage: now supports renaming storage controllers and USB controllers
Guest Control: major overhaul, for example fixing wrong parameter quoting (bug #13157)
USB: added USB traffic capturing (see the manual for more information)
Made resizing X11 guests work more reliably
API: block the removal of the current snapshot if it has child snapshots (only relevant for VMs without snapshottable hard disks, their presence always prevented removal), which resulted in VM config corruption
API: mark VM configs with snapshots but without current snapshot as inaccessible, as this combination is nonsense
API: fix information for some automatically generated events (only with XPCOM, Windows host was not affected), which caused errors when getting some of the attributes over the webservice (bug #12379)
API: fix crashes in Java API clients using the XPCOM binding, happened with output parameters only (bug #11232)
API: a number of settings (e.g. network settings) can now also be changed when the VM is in saved state
API: fixed incorrect resuming of VMs on host-resume unless they were previously paused due to a host-suspend
API: don't lose the saved state and "current state changed" flag during cloning of a VM
API: OS type description consistency fix (bug #14162)
VBoxSVC: don't keep the support driver permanently open
Main/Properties: properly drop transient guest properties when the VM is powered off
VRDP: fixed a couple of races which may cause a crash during VM poweroff
ExtPack: don't fail if the TMP directory contains non-latin1 characters (bug #14159)
3D: fix potential race in which might cause a crash on VM termination
3D: fixed a possible memory leak in the host service
Serial: new TCP/IP backend (see the manual for more information)
Storage: added USB mass storage device class (see the manual for more information)
Storage: added vbox-img standalone tool for direct manipulation of virtual hard disk images without VBoxManage
Storage: fixed crash as a result of I/O errors in certain conditions (bug #13105)
NAT: fixed several potential crashes
NAT: don't forcibly reset/drop all connections when the link goes down
Netsniffer: properly handle changing of the trace file name at VM runtime
Audio: fixed audio output and input when changing the default audio device more than once on OS X
Audio: fixed audio input on OS X under certain circumstances
ICH9: fixed the interrupt disable logic for MSI interrupts; should fix old Linux guests with AHCI
USB: improve playback with USB sound devices attached to the emulated OHCI controller
Audio: provide Linux guests a different AC97 audio codec type so Linux ALSA does not mis-detect the link speed (default for new VMs)
BIOS: fix for booting from SCSI CD/DVD media
BIOS: fix for reads partially beyond end of disk (bug #14021)
VRDP: fixed listening for IPv6 on some systems (bug #14038)
rdesktop-vrdp: upgraded to version 1.8.3
Linux hosts: fixed a bug which made the netfilter driver ignore certain events (bug #12264)
Mac OS X hosts: El Capitan fixes
Mac OS X hosts: fixed a bug which might trigger a host kernel panic if a VM is started and another hypervisor is active
Solaris hosts: Solaris 12 installer fix
Guest Additions: added a heartbeat service (see the manual for more information)
Linux hosts / guests: support for Linux distributions using systemd without sysv emulation (e.g. ArchLinux)
Windows Additions/WDDM: improved video memory utilization and allow more/bigger guest screens with large resolutions (including HiDPI)
Linux Additions: added -s parameter to mount.vboxsf to be sloppy with invalid parameters
X11 Additions: fixed wrong DPI value (bug #14151)
Mac OS X guests: limit the CPU family for legacy guests
Solaris Additions: added quiesce support to co-operate with Solaris' fast-reboot feature

New in Oracle VM VirtualBox 5.0.0 Build 101436 RC 3 (Jul 4, 2015)

New in Oracle VM VirtualBox 5.0.0 Build 101271 RC 2 (Jun 26, 2015)

New in Oracle VM VirtualBox 5.0.0 Build 100731 RC 1 (Jun 2, 2015)

New in Oracle VM VirtualBox 5.0.0 Build 100374 Beta 4 (May 18, 2015)

New in Oracle VM VirtualBox 4.3.28 Build 100309 (May 14, 2015)

VMM: fixed a Guru Meditation when rebooting certain guests (for example Solaris doing fast reboot) by fixing the implementation for INIT IPI
VMM: added some information for diagnosing rare VERR_VMX_INVALID_VMXON_PTR Guru Meditations (VT-x only)
GUI: HID LEDs sync: prevent synchronization if VM window has no focus (Windows and Mac OS X hosts only)
GUI: fixed drag and drop moving the cursor between guest screens on certain hosts
3D: fixed a crash on restoring the VM state on X11 hosts (bug #12737)
3D: fixed a crash on Linux guest shutdown (bug #12772)
VRDP: fixed incompatibility with rdesktop 1.8.3
VRDP: fixed listening for IPv6 on some systems (bug #14038)
Storage: don't crash if creating an asynchronous I/O context fails (e.g. when starting many VMs) and show a proper error message
Floppy: several fixes
Audio: improved the behavior of the volume control for the HD audio device emulation
USB: increase the number of supported drivers from 3 to 5 (Windows hosts only)
PS/2 keyboard: synchronize the LED state on VM restore (Windows and Mac OS X hosts only)
NAT Network: when running multiple NAT networks with multiple VMs, only stop the respective services when stopping VMs (bug #14090)
NAT: don't kill UDP bindings on ICMP errors (bug #13475)
NAT: bandwidth limit now works properly with NAT (bug #11485)
BIOS: fixed the returned size value of the VBE 2.0 PMI function 0Ah (4.2.0 regression; bug #14096)
Guest Control: fixed parameter quoting in Windows guests (bug #13157)
Webcam passthrough improvements for Linux (V4L2) hosts to support more webcam models
API: don't fail starting a VM with VBOX_E_INVALID_OBJECT_STATE under certain conditions (bug #13617)
API: be more verbose on VBOX_E_INVALID_OBJECT_STATE if a medium is attached to a running VM (bug #13560)
API: fixed a bug which could result in losing certain screen resize events with multi-monitor guests
rdesktop-vrdp: fixed path to the keymaps (bug #12066)
rdesktop-vrdp: switch to version 1.8.3
Windows hosts: more hardening fixes (e.g. bugs #14051, #14052)
Linux hosts: another fix for activated SMAP on Linux 3.19 and newer (Broadwell and later; bug #13961)
Linux hosts: Linux 4.1 compile fix (bug #14081)
Solaris hosts: fixed using of VNIC templates with Crossbow based bridged networking to be compatible with vanity interface names
Mac OS X hosts: fixed crash during VM termination under rare circumstances
Windows Additions/WDDM: improved video memory utilization and allow more/bigger guest screens with large resolutions (including HiDPI)
X11 Additions: prevent flickering when updating mouse cursor
Solaris Additions: fixed incorrect usage of 'prtconf' while installing Guest Additions (Solaris 10 only)

New in Oracle VM VirtualBox 5.0.0 Build 100143 Beta 3 (May 7, 2015)

New in Oracle VM VirtualBox 5.0.0 Build 99573 Beta 2 (Apr 15, 2015)

New in Oracle VM VirtualBox 5.0.0 Build 99371 Beta 1 (Apr 2, 2015)

Paravirtualization support for Windows and Linux guests to improve time-keeping accuracy and performance
Make more instruction set extensions available to the guest when running with hardware-assisted virtualization and nested paging. Among others this includes: SSE 4.1, SSE4.2, AES-NI, POPCNT, RDRAND and RDSEED
xHCI Controller to support USB 3 devices
Drag'n drop support (bidirectional) for Windows, Linux and Solaris guests
Disk image encryption
GUI: VM guest-content scaling support (including 3D acceleration)
GUI: New User Interface settings page for customizing status-bar, menu-bar and guest-content scaling
GUI: New Encryption settings tab for customizing encryption options for disk images
GUI: HiDPI support including application icons and optional unscaled HiDPI output on Mac OS X (including 3D acceleration)
GUI: Hotplugging support for SATA disks
New, modular audio architecture for providing a better abstraction of the host audio backends
In addition, the following items were fixed and/or added:
VMM: improved timing on Solaris hosts with older VT-x hosts without preemption timers
VBoxManage: when exporting an appliance, support the suppression of MAC addresses, which means they will be always recreated on import, avoiding duplicate MAC addresses for VMs which are imported several times
USB: added USB traffic capturing
API: block the removal of the current snapshot if it has child snapshots (only relevant for VMs without snapshottable hard disks, their presence always prevented removal), which resulted in VM config corruption
API: mark VM configs with snapshots but without current snapshot as inaccessible, as this combination is nonsense
API: fix information for some automatically generated events (only with XPCOM, Windows host was not affected), which caused errors when getting some of the attributes over the webservice (bug #12379)
API: fix crashes in Java API clients using the XPCOM binding, happened with output parameters only (bug #11232)
API: a number of settings (e.g. network settings) can now also be changed when the VM is in saved state

New in Oracle VM VirtualBox 4.3.26 Build 98988 (Mar 16, 2015)

New in Oracle VM VirtualBox 4.3.24 Build 98716 (Mar 2, 2015)

New in Oracle VM VirtualBox 4.3.20 Build 96996 (Nov 22, 2014)

The following items were fixed and/or added:
VMM: fixed reboot hang of 32-bit Windows SMP guests (bug #13319, #13462)
VMM: proper Math Fault handling with certain legacy guests (bug #9042, AMD hosts)
VMM: fixed a Guru Meditation VINF_EM_TRIPLE_FAULT on older CPUs that don't support MSR-bitmaps (VT-x only; bugs #13034, #13125, #13311, #13425, #13426, #13463, #13585)
GUI: fix 3D overlay window re-parenting issue when VM goes to full screen mode on X11 hosts.
GUI: fix occasional loss of focus in full-screen mode on X11 host systems (4.3.16 regression)
GUI: Mac OS X: wizards should have Cancel button (bug #12541)
GUI: added a global option to prevent automatic raising of the new window by mouse move with multi-screen guests (bug #8878)
API: accept remote display port 0 as the default RDP port (bug #8534)
VBoxManage: fixed crash when executing showvminfo command under certain circumstances (bug #13190)
ACPI: fixed occasional Guru Meditations in ACPI timer code (4.3.18 regression; bug #13521)
EFI: improved performance of IDE disk access
EFI: fixed a bug in the EFI video driver which prevented Windows to boot in UEFI mode (bug #12022)
EFI: properly announce the amount of RAM for big VMs (bugs #11103 and #13211)
Storage: fixed a crash under certain circumstances when a medium was ejected from a drive attached to the SATA controller without inserting a new medium before pausing or closing the VM (4.3.16 regression)
Storage: fixed an interrupt acknowledge issue causing hanging guests or slower I/O (4.3.18 regression)
Storage: fixed broken resume after the VM was suspended due to a full disk if host I/O caching is used
Storage: fixed a Guru Meditation under certain conditions when using the DevLsiLogic controller with VMs running in raw mode (4.3 regression; bugs #12254, #12655, #12709, #12774, #12886)
Guest Control: fixed a bug which might lead to a crash during recursive copy
SDK: Java COM bindings fixes
iPXE: enable the HTTP download protocol (bug #13628)
Runtime: do not use a fixed stack size creating temporary threads during initialization (bug #13038)
Windows hosts: fixed more startup problems on certain Windows hosts due to conflicts with anti-virus software; better error reporting (4.3.14 regression; bug #13187)
Windows hosts: fixed DirectSound host audio failure under certain conditions (bug #13418)
Windows hosts: fixed additional cases of 4.3.14 regression whereby AltGr stopped working for some people (bug #13216)
Windows Additions: preserve guest monitor layout when resizing Windows 7 or newer guests
Linux Additions: Linux 3.18 compile fixes (bug #13515)

New in Oracle VM VirtualBox 4.3.18 Build 96516 (Oct 13, 2014)

VMM: fixed a potential misbehavior after restoring the A20 state from a saved state
GUI: fixed full-screen mode mini-toolbar related regressions for different platforms and window managers (bug #13369)
GUI: X11: fixed full-screen mode Unity panels quirk caused by mini-toolbar code changes in last release (bug #13365)
GUI: X11: added possibility to use legacy full-screen mode as the new one can cause multi-screen issues under Unity, see the manual for more information (bug #13365)
GUI: Mac OS X: fixed full-screen mode artifact causing black screen when 3D acceleration was enabled on 10.10 Yosemite hosts (bug #13448)
GUI: Mac OS X: fixed regression in user-space swiping from/to VBox in full-screen mode
GUI: Mac OS X: fixed issue with switching to VBox in full-screen mode through Alt+Tab and Mission Control
Storage: fixed data corruption when resizing huge VHD images under certain circumstances (bug #11960)
Storage: fixed a rare hang during startup when the BIOS enumerates the storage devices attached to the SATA controller
Storage: follow the spec with AHCI interrupt acknowledge (bug #13474)
Storage: fixed broken iSCSI authentication (4.3.14 regression, bugs #13386, #13435)
NAT Network: properly parse port forwarding rules to allow UDP rules
USB: fixed a crash on Linux hosts with older Linux kernels (bug #13400) and several other fixes
ACPI: fixed ACPI timer anomalies (bug #12076)
Guest Control: fixed a memory leak (bug #13434)
Main: when removing a VM, do also remove the VBoxStartup.log file which might exist on Windows hosts (bug #13478)
Windows hosts: fixed more startup problems on certain Windows hosts due to conflicts with anti-virus software; better error reporting (4.3.14 regression; bug #13187)
Windows hosts: propagate the process startup information to the child process (4.3.14 regression; bug #13243)
Mac OS X hosts: don't force using the discrete GPU (bug #11111)
Windows Additions: some Windows 10 tweaks
X11 guests: fix a bug handling video driver display properties which prevented GNOME Shell on Fedora 21 from starting
Linux hosts / guests: fixed a few remaining warnings in the kernel log if memory allocation fails (bug #11171)

New in Oracle VM VirtualBox 4.3.16 Build 95972 (Sep 10, 2014)

VMM: fixed restoring 32-bit FPU state on 64-bit capable VMs and restoring guest FPU in raw-mode VMs (bug #12646; 4.3 regression)
GUI: properly restore normal/scale mode guest-screen size after exiting full-screen/seamless mode
GUI: mini-toolbar should provoke less artifacts/conflicts with 3D guest rendering
GUI: Mac OS X: Native full-screen multi-screen transition was able to blackout host-screens for nearly minute
GUI: X11: Modern window managers should now use native full-screen multi-screen mapping API
GUI: added extradata item for configuring the mouse capture behavior, see the manual for more information (bug #3506)
Storage: fixed a VBoxSVC crash when querying an iSCSI target with authentication configured (4.3.14 regression)
Storage: fixed a rare data corruption during reads if another allocating write is running concurrently and accesses the same range
Storage: fixed a rare crash for certain VHD images from other products
Storage: fixed a rare release assertion when using the AHCI controller
Floppy: fixed read errors and guest memory corruption when running under control of QEMM
3D: added experimental support for rendering on offline GPUs for Mac OS X host
3D: fixed white window appearing on entering FullScreen mode on OSX host
3D: fixed video recording support for 3D data regression (bug #13073)
3D: fixes for MS Office 2013 support
3D: several fixes
Bridged Networking: improved IPv6 support when bridging to a wireless interface
NAT: prevent internal DNS service from stuck in host-resolver mode when host was switched from one network to another one while host was sleeping (Mac OS X hosts)
NAT: preserve DF (if possible) and TOS when proxying outbound UDP datagrams (bugs #9440, #12309)
NAT: don't let multicast datagrams out (bug #7338)
NAT: fixed handling of large incoming UDP datagrams on Windows hosts (bug #12136)
NAT: fixed handling of the RFC 1533 DHCP PAD option
NAT Network: fixed inbound half-close on Windows hosts
NAT Network: preserve IPv4 DF (if possible), TTL, TOS and IPv6 Hop Limit when proxying outbound UDP datagrams
VRDP: fixed a rare crash when using remote audio input
USB: fixed several regressions from 4.3.14 (bug #13320)
Audio: made the HDA sound emulation work with certain OSX guests (e.g. Mountain Lion)
Windows hosts: fixed startup problems on certain Windows hosts due to conflicts with anti-virus software (4.3.14 regression, bug #13187)
Windows hosts: fixed 4.3.14 regression whereby AltGr stopped working for some people (bug #13216)
X11 hosts: made the extra key on Brazilian Thinkpads work (bug #8745)
X11 hosts: fixed a problem of input focus cycles and immediately released key presses in full screen mode (bug #13238)
Linux hosts: fixed flooding the kernel log with USB related messages when passing through certain USB devices to a VM (bug #13085)
Linux guests: stop applications crashing when drm_wait_vblank is called (bug #13265)
Linux guests: fix a crash in gnome-session (bug #13335)
X11 guests: do not start VBoxClient over an SSH connection (bug #13107)
X11 guests: added support for X.Org Server 1.16 (bug #13207)
X11 guests: fixed a wrong parameter in the video driver which caused problems with full-screen X11 clients (bug #2748)
VirtualKD: introduced stub/loader device for speeding up Windows kernel debugging, details see http://virtualkd.sysprogs.org/

New in Oracle VM VirtualBox 4.3.14 Build 95030 (Jul 16, 2014)

The following items were fixed and/or added:
VMM: more fixes for MSR emulation on certain hardware (bugs #12784, #12949, #13034)
VMM: improve MSI handling under rare circumstances (only relevant for the ICH9 chipset)
VMM: fixed #UD exception for 64-bit guests with the EFER.SCE bit and the SYSCALL instruction (VT-x only; 4.3 regression; bug #13008)
VMM: fixed timekeeping after resuming SMP guests
VMM: properly wake up a halted VCPU on NMI/SMI
GUI: fixed a potential crash
GUI: fixed stuck AltGr key on Windows hosts (bug #2537)
GUI: fixed a potential error during the version check
GUI: shortcut change should not require Enter/Return (or other trigger) to confirm (bugs #12828, #12847, #12937, #13087)
GUI: fixed update check which was broken due to changing the location of the root certificates (bug #13096)
VBoxManage: fixed typo in showvminfo --machinereadable (bug #13176)
NAT: fixed inbound half-close (bug #13116)
NAT: fixed slow upload speed under certain conditions (bug #10034)
NAT Network: fixed potential loss of inbound TCP data
NAT Network: fixed potential infinite stalls of TCP connections over IPv6
NAT Network: fixed resets of TCP connections on Windows hosts
NAT Network: fixed inbound half-close on Mac OS X hosts
NAT Network: fixed socket leak on Solaris hosts
NAT Network: fixed ping of mapped host loopback on Mac OS X and Solaris hosts, fixed proxying of IMCP errors on Mac OS X
Host-Only Network: fixed SNMP ifConnectorPresent value on Windows (bug #13143)
Storage: fixed a possible crash with CD/DVD passthrough under certain circumstances
Storage: fixed a crash when trying to open an inaccessible QED or QCOW image (bug #12613)
Storage: fixed data corruption or read errors under rare circumstances
AHCI: fixed a crash under rare circumstances
USB: performance fixes
ICH9: properly reset MSI capability on reset
Keyboard: active modifier keys during suspend were stuck after resuming the host
3D: fixed misbehavior with huge guests (i.e. guest more than 4GB guest memory
3D: several fixes
API: properly detect the Windows 8.1 guest OS type (bug #13090)
ExtPack: cleanup of dangling uninstallation directories
Linux hosts / guests: compile fix for EL7 (bug #12638)
Linux Additions: made 3D pass-through work with recent versions of Mesa in the guest (bug #12941)
Linux Additions: Linux 3.16 fixes (bug #13123)
Mac OS X hosts: when scanning for host CD/DVD devices also consider BlueRay devices
OS/2 Additions: fixed gengradd.dll library name (bug #12785)
Solaris Additions: fixed permissions of files and directories located on shared folders
Windows host installer: fixed the need for rebooting Windows after installation or upgrade, extended logging for NetFlt/NetAdp (un)installation

New in Oracle VM VirtualBox 4.3.14 Build 94870 RC 1 (Jul 10, 2014)

New in Oracle VM VirtualBox 4.3.12 Build 93733 (May 17, 2014)

VMM: fixed an occasional Guru Meditation (Mac OS X hosts only; bugs #12727, #12954)
VMM: fixed a rare condition that would fail to invalidate guest TLB entries or would invalidate them when not required (Windows hosts only)
VMM: fixed a VERR_NOT_SUPPORTED Guru Meditation seen with certain guests, e.g. OpenServer 5.0.7
VMM: more fixes for MSR emulation on certain hardware (tickets #12240, #12875)
GUI: fixed mouse positioning with mouse integration disabled and multiple guest screens (Windows hosts only; bug #9059)
GUI: fixed crash in VM manager (bug #12878)
GUI: fixed crash under rare conditions on entering/exiting fullscreen/seamless mode
Shared Clipboard: don't stop working after taking a snapshot (bug #12700)
AHCI: fixed a crash under rare circumstances
API: fixed a hang during VM shutdown under rare conditions
NAT: fixed generation of malformed ICMP error datagrams (4.3.10 regression)
NAT: fixed potential crash in DNS proxy
NAT Network: don't drop port forwarding rules after some time
NAT: fixed ARP cache corruption and network loss in Windows guest caused by iSCSI service activity
USB: improved check if a storage device is currently mounted to the host when the device is about to be attached to the VM (Mac OS X hosts only; #11038)
3D support: several fixes, including better support for Ubuntu 14.04
VRDP: fixed a potential crash on client disconnect (bug #12858)
VBoxSVC: fixed a race when a new client is started a few seconds after the last client terminated (Windows hosts only; bugs #11309, #12509)
VBoxSVC: fixed VirtualBox.xml registry corruption after VM renaming
VBoxSVC: fixed a potential crash caused by incorrect USB device filter (Mac OS X hosts only; #11038)
Windows hosts: partly support 32-bit COM on 64-bit systems
Windows host installer: implemented merge module (msm) support
Linux hosts: fixed dependency of boot script on older Debian systems (bug #12262)
Linux guests: fix symbolic link to shared folder helper (bug #12879)
Linux Additions: don't crash VBoxService during guest execute for users without a password (bug #12994)
Linux Additions: fixed a bug in guest execution where the guest process terminated with VERR_INTERRUPTED to the host

New in Oracle VM VirtualBox 4.3.10 Build 93012 (Mar 27, 2014)

New in Oracle VM VirtualBox 4.3.10 Build 92957 (Mar 26, 2014)

New in Oracle VM VirtualBox 4.3.8 Build 92456 (Feb 26, 2014)

This is a maintenance release. The following items were fixed and/or added:
VMM: more work on improving the emulation of certain MSR registers (e.g. bugs #12224, #12544)
VMM: fixed a VERR_INVALID_RPL Guru Meditation when booting certain guests (bug #11350)
VMM: experimental support for SSE 4.1 / SSE 4.2 passthrough, see here how to enable it (bug #8651)
VMM: fix for recent Linux kernels with software virtualization
GUI: experimental HID LEDs synchronization for Windows hosts, see here
GUI: warn the user if the Oracle Extension Pack is not installed and the user tries to activate the remote display feature (bug #9104)
GUI: make sure that a minimized guest (using mini toolbar in fullscreen/seamless mode) keeps the minimized state (bug #12199)
GUI: popup banner’s “do not show this message again” check-box replaced with corre- sponding button
GUI: network adapter cables can now be connected/disconnected directly through the run- ning virtual machine Devices / Network menu a Network status-bar indicator
GUI: the new VM wizard now proposes 64-bit guests on 64-bit hosts by default; better distinction between 32-bit OS types 64-bit OS types (bug #12533)
GUI: better error message if appliance import fails (bug #12657)
GUI: allow to set host-combination to ’None’ using the Global settings / Input page (bug
#12730)
GUI: don’t switch the guest to a black screen during online snapshot merge (4.3 regression)
VBoxManage: when exporting an appliance, support the suppression of MAC addresses, which means they will be always recreated on import, avoiding duplicate MAC addresses for VMs which are imported several times
AHCI: fixed a VM hang during suspend under certain circumstances
AHCI: fixed a VM hang during online snapshot merge under certain circumstances
AHCI: fixed a bug which resulted in Windows XP guest hangs if a SATA CDROM is attached
(bug #12417)
AHCI: fixed a Guru Meditation under certain conditions
AHCI: ejecting a CD/DVD medium failed under certain conditions
AHCI: disk hotplugging fixes
NAT: transparent handling of host sleep/resume and network configuration changes if the dnsproxy is enabled or if the hostresolver is used (bug #12441)
NAT: fixed crash and misbehaviour under some circumstances with ICMP packets having TTL=1
NAT Network: fixed IPv6 reassembly
NAT Network: ping proxy implemented
OVF: fixed reading of the OVF 0.9 section element (4.3 regression; bug #12345)
OVF: several fixes
3D: several fixes, multiscreen fixes (e.g. bug #9124)
3D: include 3D content in captured videos (bug #12666)
3D: include 3D content in captured screenshot (bug #11758)
VGA: proper handling of legacy graphics modes if the Guest Additions are active (bug #6649)
USB: fixed crash during isochronous transfer under rare circumstances
BIOS: better disk geometry handling of SCSI drives
API: fix crashes in Java API clients using the XPCOM binding, happened with output pa- rameters only (bug #11232)
VBoxSVC: documented the handling of host power management events (see here) and added an extradata item for configuring the handling of the battery-low event (bug #9925)
VBoxSVC: fixed a bug which could trigger a crash if a VM snapshot was restored the second time and the VM has associated bandwidth groups (bug #12569)
VBoxSVC: properly detect ifconfig if located in /bin (bug #12713)
Shared Folders: fixed a failure to restore transient shared folders when starting a VM from
a saved state (bug #12578)
Mac OS X hosts: fixed issue when the application icon was frozen in the dock if the bridging interface was not connected to a network (bug #12241)
Windows Additions: fixed handle leaks in VBoxTray (bug #12563)
Windows Additions: fixed a crash while detecting active guest users
Windows Additions: fixed restoring backed up D3D files on XPDM -> WDDM upgrade
Guest Control: fixed setting and using a guest user’s process environment variables
Linux Additions: support Enterprise Linux 6.5 kernels (bug #12505)
Linux Additions: fixed CPU hot-remove on newer Linux kernels
Linux / Solaris Additions: don’t automount a shared folder which is already mounted
X11 Additions: support X.Org Server 1.15 (bug #12623)

New in Oracle VM VirtualBox 4.3.8 Build 92386 RC 1 (Feb 21, 2014)

VMM: more work on improving the emulation of certain MSR registers (e.g. bugs #12224, #12544)
VMM: fixed a VERR_INVALID_RPL Guru Meditation when booting certain guests (bug #11350)
VMM: experimental support for SSE 4.1 / SSE 4.2 passthrough, see here how to enable it (bug #8651)
VMM: fix for recent Linux kernels with software virtualization
GUI: experimental HID LEDs synchronization for Windows hosts, see here for more details
GUI: warn the user if the Oracle Extension Pack is not installed and the user tries to activate the remote display feature (bug #9104)
GUI: make sure that a minimized guest (using mini toolbar in fullscreen/seamless mode) keeps the minimized state (bug #12199)
GUI: popup banner’s “do not show this message again” check-box replaced with corre- sponding button
GUI: network adapter cables can now be connected/disconnected directly through the run- ning virtual machine Devices / Network menu a Network status-bar indicator
GUI: the new VM wizard now proposes 64-bit guests on 64-bit hosts by default; better distinction between 32-bit OS types 64-bit OS types (bug #12533)
GUI: better error message if appliance import fails (bug #12657)
VBoxManage: when exporting an appliance, support the suppression of MAC addresses, which means they will be always recreated on import, avoiding duplicate MAC addresses for VMs which are imported several times
Storage: fixed a VM hang during suspend under certain circumstances if the AHCI con- troller is used
AHCI: fixed a bug which resulted in Windows XP guest hangs if a SATA CDROM is attached (bug #12417)
AHCI: fixed a Guru Meditation under certain conditions
AHCI: ejecting a CD/DVD medium failed under certain conditions
AHCI: disk hotplugging fixes
NAT: transparent handling of host sleep/resume and network configuration changes if the dnsproxy is enabled or if the hostresolver is used (bug #12441)
NAT: fixed crash and misbehaviour under some circumstances with ICMP packets having TTL=1
NAT Network: fixed IPv6 reassembly
NAT Network: ping proxy implemented
OVF: fixed reading of the OVF 0.9 section element (4.3 regression; bug #12345)
OVF: several fixes
3D: several fixes, multiscreen fixes (e.g. bug #9124)
3D: include 3D content in captured videos (bug #12666)
3D: include 3D content in captured screenshot (bug #11758)
VGA: proper handling of legacy graphics modes if the Guest Additions are active (bug #6649)
USB: fixed crash during isochronous transfer under rare circumstances
BIOS: better disk geometry handling of SCSI drives
API: fix crashes in Java API clients using the XPCOM binding, happened with output pa- rameters only (bug #11232)
VBoxSVC: documented the handling of host power management events (see here) and added an extradata item for configuring the handling of the battery-low event (bug #9925)
VBoxSVC: fixed a bug which could trigger a crash if a VM snapshot was restored the second time and the VM has associated bandwidth groups (bug #12569)
Shared Folders: fixed a failure to restore transient shared folders when starting a VM from a saved state (bug #12578)
Mac OS X hosts: fixed issue when the application icon was frozen in the dock if the bridging interface was not connected to a network (bug #12241)
Linux hosts: also consider the physical package ID when determining the number of phys- ical CPU cores
Linux hosts / guests: don’t warn in kernel log if memory allocation fails (bug #11171)
Solaris hosts: fixed the autostart SMF script (bug #11720)
Windows hosts: fixes for non-ANSI code page user names and similar environment contents (bug #12596)
Windows hosts / guests: fixed setting and using a guest user’s process environment vari- ables (relevant for Guest Control)
Windows Additions: fixed handle leaks in VBoxTray (bug #12563)
Windows Additions: fixed a crash while detecting active guest users
Windows Additions: fixed restoring backed up D3D files on XPDM -> WDDM upgrade Guest Control: fixed setting and using a guest user’s process environment variables
Linux Additions: support Enterprise Linux 6.5 kernels (bug #12505)
Linux Additions: fixed CPU hot-remove on newer Linux kernels
Linux / Solaris Additions: don’t automount a shared folder which is already mounted X11 Additions: support X.Org Server 1.15 (bug #12623)

New in Oracle VM VirtualBox 4.3.6 Build 91406 (Dec 19, 2013)

New in Oracle VM VirtualBox 4.3.4 Build 91027 (Dec 19, 2013)

New in Oracle VM VirtualBox 4.3.4 Build 91017 (Nov 29, 2013)

VMM: fix for a bug in the Local APIC emulation causing a BSOD when booting certain guests (4.3.0 regression; bug #12240)
VMM: fixed loading of saved states if VT-x/AMD-V was disabled (4.3.2 regression; bug #12291)
VMM: fixed single-stepping inside the guest for certain instructions (VT-x only; bug #10947)
VMM: fixed a performance issue involving APIC accesses after rebooting a VM (4.3.0 regression; VT-x only; bug #12296)
VMM: fixed TPR patching to be enabled for 32-bit guests even when the chosen guest type is 64-bit (4.3.0 regression; AMD-V only)
VMM: fixed occasional VINF_EM_TRIPLE_FAULT errors on hosts without the unrestricted guest execution feature (bug #12198)
GUI: don't bother the user with the BPP warning if no Guest Additions are installed
GUI: fixed machine-window paint artifacts on VM reboot / guest-screen resize
GUI: make sure the assigned license and description are attached to the exported appliance
GUI: fixed bugs in close VM action restrictions handling (bug #12333)
GUI: fixed incorrect wizards text colors for some unusual look and feel styles (bug #11743)
GUI: should restore seamless mode as soon as possible after VM reboot or shutdown
GUI: fixes for medium enumeration
GUI: the OS X hot corners were not accessible while a VirtualBox VM is running (Mac OS X hosts only; bug #4139)
GUI: fixed an old bug which bared the host from cleanly shutdown / reboot if the VM selector window is open (Mac OS X hosts only; bug #8254)
Host-only Networking: fixed creating of host-only network interfaces (4.3.0 regression; bug #12182)
NAT: don't run into an infinite loop in case the host cannot access any DNS server (4.3.0 regression; bug #12300)
NAT: don't re-connect the cable if the DNS information changes and the cable was disconnected before (4.3.0 regression; bug #12225)
NAT: fixed several issues with automatically starting / terminating of NAT networks on VM start / stop and configuration changes
VBoxNetDHCP: don't block prevent VBoxSVC from terminating (bug #12264)
2D Video acceleration: fix crashes on presentation mode switches (bug #9194)
BusLogic: allow to run VMs with more than one BusLogic SCSI controller enabled
Keyboard: fixed a VM crash if a VM was resumed from a saved state where at least one key was pressed (bug #11289)
VBoxSVC: fixed a heap corruption under certain conditions (4.3.0 regression)
VBoxSVC: fixed a race leading to a hang during initialization (bug #12349)
OVF: fixed import logic for OVF appliances containing multiple VMs
OVF: improved logic for finding an appropriate image format during OVF import
API: block the removal of the current snapshot if it has child snapshots (only relevant for VMs without snapshottable hard disks, their presence always prevented removal), which resulted in VM configuration corruption
API: mark VM configurations with snapshots but without current snapshot as inaccessible, as this combination is nonsense
API: fixed information for some automatically generated events (only with XPCOM, Windows host was not affected), which caused errors when getting some of the attributes over the webservice (bug #12379)
SDK: extended the functionality coverage for the C bindings
Guest Control: various bug fixes and improved VBoxManage help (bugs #8072, #11044, #12336, #12338, #12346, #12371)
Windows hosts: another attempt to fix the massive DPC latency (bug #6242)
Windows host installer: make registering file extensions optional, contributed by Tal Aloni (bug #8009)
Mac OS X hosts: properly sign the kernel extensions for Mavericks hosts (bug #12256)
Mac OS X hosts: fixed a bug where the VirtualBox dock icon was not properly removed from the dock after a VM terminated preventing Mavericks hosts from shutting down (bug #12241)
Mac OS X hosts: fixed minor installer issue (bug #12275)
Linux hosts / guests: Linux 3.13 compile fixes (bug #12358)
Linux guests: build the vboxvideo kernel module correctly on OL/RHEL 6.1 guests (bug #11996)
Linux guests: make 3D work on Slackware 14.1 (bug #12320 comments 3 and 4)
Guest Additions/3D: fixed an occasional dead-lock (bug #12319)
Windows Additions/3D: fixed possible memory leaking (bug #12228)
Windows Additions/XPDM: use separate tables containing valid video modes for each virtual monitor
Windows Additions: fixed automatic logins for Vista and newer Windows guests (bug #12332)

New in Oracle VM VirtualBox 4.3.2 Build 90405 (Nov 2, 2013)

VMM: fixed restoring of the auxiliary TSC MSR in VT-x that caused host BSODs on Windows 8.1 hosts and unpredictable behavior on other hosts (bug #12237)
VMM: provide fake values for a couple of MSRs to make more guests happy on certain hosts
VMM: fixed detection of VT-x on certain machines where the BIOS would not set the VMX LOCK feature bit, which affected the VM settings in the GUI
VMM: fixed TPR threshold which caused BSODs on Windows XP guests that use the I/O APIC (VT-x only; bug #12227)
VMM: fixed PATM saved state incompatibility for software virtualized VMs (bug #12222)
VMM: don't fail if AMD-V isn't available if the VM is configured to use software virtualization
GUI: fixed guest resize breakage on visual representation mode change (when switching from normal to fullscreen etc)
GUI: make sure the guest screen is resized after restoring a VM from a saved state if the host screen size changed
GUI: disabled SCROLL LED sync from HID LEDs synchronization (Mac OS X hosts only)
Webcam passthrough improvements including GUI support (see the manual for more information)
Guest Control: implemented more IGuestSession methods
Guest Control: added support for deleting and renaming guest files + directories in VBoxManage
Guest Control: various bugfixes
API: incorrect handling of hardware UUID default value, resulting in an all zero DMI/SMBIOS UUID, which leads to Windows requesting re-activation (4.3 regression; bug #12244)
3D support: fixed crash on shutdown if 2D video acceleration is enabled (Mac OS X hosts only)
3D support: miscellaneous fixes
Storage: fixed detection of CD/DVD media when switching from an empty to a host drive with passthrough enabled
Storage: fixed hang of the VM process when the disk is full under certain circumstances
NAT: listen for changes of NAT Network setting at runtime
NAT: NAT Network DHCP server now saves leases to a persistent storage
Main: monitor changes in host DNS configuration
Mac OS X host: reworked a mechanism of adding a VM desktop alias from the VM selector
Mac OS X installer: remove old kernel extensions during upgrade (bug #12258)
X11 Additions/3D: fix freezes starting 3D desktop (bug #11503, thank you Sam Spilsbury)
X11 Additions/3D: fix depth buffer support (bug #11905)
X11 Additions/3D: fix Age Of Empires 3 rendering (bug #11331)

New in Oracle VM VirtualBox 4.3.0 Build 89960 (Oct 15, 2013)

New features:
VMM: major rewrite of the VT-x code and the AMD-V code including many bug fixes and performance improvements (for example bug #9659)
VMM: introduced a lightweight instruction interpreter for situations not handled by hardware virtualization
GUI: extended messaging mechanism (new non-modal popup overlays used to show non-critical warnings and provide user with additional information)
GUI: keyboard shortcuts management (input page of global preferences extended with possibility to edit general keyboard shortcuts for VirtualBox Manager and Virtual Machine)
GUI: video capturing support (bug #4766)
Added USB touch device emulation
Added experimental support for webcam passthrough complementing USB passthrough (see the manual for more information)
Added SCSI CD-ROM emulation, including boot support
VRDP: support for IPv6
Guest Control: guest sessions now are running in dedicated, impersonated session processes (needs at least Guest Additions 4.3 installed)
Guest Control: implemented IGuestFile support
NAT: experimental virtual router mode: several VMs are attached to the same internal network and share one NAT service (see the manual for more information)
Fixes/Added:
VMM: significantly improved performance of NetWare 5.x/6.x guests on host systems without nested paging support
VMM: fixed losing host NMIs while in VT-x guest-context
VMM: changed order of actions in emulated task switch (bug #10532)
VMM: allow to activate VT-x while in SMX mode and provide more information if that is not possible
GUI: update check uses https
GUI: numerous minor internal cleanups and bug fixes
GUI: HID LEDs synchronization when switching between guest window(s) and host (Mac OS X hosts only)
GUI, VBoxManage: when unregistering a VM, also unregister the hard disk images which are used exclusively (bug #10311)
GUI: use the number of physical presented processor cores instead of the number of logical processor cores to check if the users assigned too many virtual CPUs to the guest
Snapshots: made live snapshots work again (bug #9255)
Teleportation: made it work again (bug #9455)
Storage: implemented AHA-154x compatibility mode in the emulated BusLogic SCSI HBA
Storage: significantly improved performance of large ATAPI PIO transfers (BeOS, Minix 3 guests affected)
Storage: added floppy formatting emulation (NB: cannot be used to change existing media geometry)
Settings: global and per-VM default frontend configuration, useful to select the use of alternative VM frontends
Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased performance and may trigger crashes
Settings: the per-VM hwvirtextexcl setting has been replaced by a global hwvirtexclusive property
Main: new event queue implementation which does not use the host's native event queue for processing VirtualBox events anymore
Main: eliminate the use of SysV semaphores on all host OSes other than Windows, namely Linux, Solaris and Mac OS X, with the consequence that no system reconfiguration is needed to run more than approximately 100 VMs
Main: use the XDG standard configuration folder instead of .VirtualBox on systems where it is appropriate (bug #5099)
Main: extension pack framework can now support loading HGCM modules, contributed by Jeff Westphal
VBoxManage: list more information about hard disk/DVD/floppy media, and support the --long option to show really all available details
VBoxManage: added support for optional command line parameters for the automatic Guest Additions update
VBoxManage: added support for listing active guest sessions, guest processes and/or guest files via guestcontrol list
VBoxManage: added support for closing active guest sessions via guestcontrol session close --session-id | --session-name | --all
VBoxManage: added support for terminating active guest processes via guestcontrol process kill|close|terminate --session-id | --session-name ... or guestcontrol [p[s]]kill --session-id | --session-name ...
VBoxManage: added support for watching guest sessions via guestcontrol watch
VBoxManage: added modifyvm --triplefaultreset to make the VM reset on triple fault instead of triggering a Guru Meditation (see the manual for more information)
3D support: several fixes
3D support: several fixes for Mac OS X hosts
OVF: several fixes
Extpack Installer: make it work if the file is located in a folder with special characters
Keyboard: fix for reporting key sequences like Ctrl+Alt+Del for the USB keyboard emulation
Shared Clipboard/X11: support for BMP-format images, contributed by François Revol
Mac OS X hosts: limited support for Mac OS X 10.9 (Mavericks)
Mac OS X hosts: use a launchd script instead of the deprecated StartupItem mechanism (bug #8940)

New in Oracle VM VirtualBox 4.3.0 Build 89687 RC 1 (Oct 9, 2013)

VMM: major rewrite of the VT-x code and the AMD-V code including many bug fixes and performance improvements (for example bug #9659)
VMM: introduced a lightweight instruction interpreter for situations not handled by hard- ware virtualization
GUI: extended messaging mechanism (new non-modal popup overlays used to show non- critical warnings and provide user with additional information)
GUI: keyboard shortcuts management (input page of global preferences extended with possibility to edit general keyboard shortcuts for VirtualBox Manager and Virtual Machine)
GUI: video capturing support (bug #4766)
Added USB touch device emulation
Added SCSI CD-ROM emulation, including boot support
VRDP: support for IPv6
Guest Control: guest sessions now are running in dedicated, impersonated session pro- cesses (needs at least Guest Additions 4.3 installed)
Guest Control: implemented IGuestFile support
NAT: experimental virtual router mode: several VMs are attached to the same internal network and share one NAT service
In addition, the following items were fixed and/or added:
VMM: significantly improved performance of NetWare 5.x/6.x guests on host systems with- out nested paging support
VMM: fixed losing host NMIs while in VT-x guest-context
VMM: changed order of actions in emulated task switch (bug #10532)
GUI: update check uses https
GUI: numerous minor internal cleanups and bug fixes
GUI, VBoxManage: when unregistering a VM, also unregister the hard disk images which
are used exclusively (bug #10311)
GUI: use the number of physical presented processor cores instead of the number of logical processor cores to check if the users assigned too many virtual CPUs to the guest
Snapshots: made live snapshots work again (bug #9255)
Teleportation: made it work again (bug #9455)
Storage: implemented AHA-154x compatibility mode in the emulated BusLogic SCSI HBA
Storage: significantly improved performance of large ATAPI PIO transfers (BeOS, Minix 3 guests affected)
Storage: added floppy formatting emulation (NB: cannot be used to change existing media geometry)
Settings: global and per-VM default frontend configuration, useful to select the use of alternative VM frontends
Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased perfor- mance and may trigger crashes
Settings: the per-VM hwvirtextexcl setting has been replaced by a global hwvirtexclusive property
Main: new event queue implementation which does not use the host’s native event queue for processing VirtualBox events anymore
Main: eliminate the use of SysV semaphores on all host OSes other than Windows, namely Linux, Solaris and Mac OS X, with the consequence that no system reconfiguration is needed to run more than approximately 100 VMs
Main: use the XDG standard configuration folder instead of .VirtualBox on systems where it is appropriate (bug #5099)
Main: extension pack framework can now support loading HGCM modules, contributed by Jeff Westphal
VBoxManage: list more information about hard disk/DVD/floppy media, and support the --long option to show really all available details
VBoxManage: added support for optional command line parameters for the automatic Guest Additions update
VBoxManage: added support for listing active guest sessions, guest processes and/or guest files via guestcontrol list
VBoxManage: added support for closing active guest sessions via guestcontrol session close --session-id | --session-name |--all
VBoxManage: added support for terminating active guest processes via guestcontrol process kill|close|terminate --session-id | --session-name ... or guestcontrol [p[s]]kill --session-id | --session-name ...
VBoxManage: added support for watching guest sessions via guestcontrol watch
3D support: several fixes
3D support: several fixes for Mac OS X hosts
OVF: several fixes
Extpack Installer: make it work if the file is located in a folder with special characters
Keyboard: fix for reporting key sequences like Ctrl+Alt+Del for the USB keyboard emula- tion
Shared Clipboard/X11: support for BMP-format images, contributed by François Revol
Windows hosts: don’t cause massive DPC latency (only on certain hosts; still needs improv-
ing; bug #6242)
Windows hosts: consider symlinks when retrieving volume information (bug #11962)
Windows hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB 3.0 ports
Windows Additions: fixed misbehavior with guest display power management (WDDM driver only; bug #11170)
Windows Additions: fixed memory leak caused by WTSQuerySessionInformation() on Win- dows 2000 guests (bug #12072)
Linux Additions: fixed udev detection in the init script with Linux 3.x kernels
Windows guests: ability to track guest user idle times through the newly introduced event
IGuestUserStateChangedEvent

New in Oracle VM VirtualBox 4.3.0 Build 89194 Beta 3 (Sep 21, 2013)

VMM: major rewrite of the VT-x code and the AMD-V code including many bug fixes and performance improvements (for example bug #9659)
GUI: extended messaging mechanism (new non-modal popup overlays used to show noncritical warnings and provide user with additional information)
GUI: keyboard shortcuts management (input page of global preferences extended with possibility to edit general keyboard shortcuts for VirtualBox Manager and Virtual Machine)
GUI: video capturing support (bug #4766)
Added USB touch device emulation
Added SCSI CD-ROM emulation, including boot support
VRDP: support for IPv6
Guest Control: guest sessions now are running in dedicated, impersonated session processes (needs at least Guest Additions 4.3 installed)
Guest Control: implemented IGuestFile support
NAT: experimental virtual router mode: several VMs are attached to the same internal network and share one NAT service (see chapter 6.4, Network Address Translation Service (experimental), page 95)
In addition, the following items were fixed and/or added:
VMM: properly handle NMIs on Linux hosts with X2APIC enabled
VMM: significantly improved performance of NetWare 5.x/6.x guests on host systems without nested paging support
VMM: fixed losing host NMIs while in VT-x guest-context
VMM: changed order of actions in emulated task switch (bug #10532)
GUI: update check uses https
GUI: numerous minor internal cleanups and bug fixes
GUI, VBoxManage: when unregistering a VM, also unregister the hard disk images which are used exclusively (bug #10311)
Snapshots: made live snapshots work again (bug #9255)
Teleportation: made it work again (bug #9455)
Storage: implemented AHA-154x compatibility mode in the emulated BusLogic SCSI HBA
Storage: significantly improved performance of large ATAPI PIO transfers (BeOS, Minix 3 guests affected)
Storage: added floppy formatting emulation (NB: cannot be used to change existing media geometry)
Settings: global and per-VM default frontend configuration, useful to select the use of alternative VM frontends
Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased performance and may trigger crashes
Settings: the per-VM hwvirtextexcl setting has been replaced by a global hwvirtexclusive property
Main: new event queue implementation which does not use the host’s native event queue for processing VirtualBox events anymore
Main: eliminate the use of SysV semaphores on all host OSes other than Windows, namely Linux, Solaris and Mac OS X, with the consequence that no system reconfiguration is needed to run more than approximately 100 VMs
Main: use the XDG standard configuration folder instead of .VirtualBox on systems where it is appropriate (bug #5099)
Main: extension pack framework can now support loading HGCM modules, contributed by Jeff Westphal
VBoxManage: list more information about hard disk/DVD/floppy media, and support the --long option to show really all available details
VBoxManage: added support for optional command line parameters for the automatic Guest Additions update
VBoxManage: added support for listing active guest sessions, guest processes and/or guest files via guestcontrol list
VBoxManage: added support for closing active guest sessions via guestcontrol session close --session-id | --session-name |--all
VBoxManage: added support for terminating active guest processes via guestcontrol process kill|close|terminate --session-id | --session-name ... or guestcontrol [p[s]]kill --session-id | --session-name ...
VBoxManage: added support for watching guest sessions via guestcontrol watch
3D support: several fixes
3D support: several fixes for Mac OS X hosts
OVF: several fixes
Keyboard: fix for reporting key sequences like Ctrl+Alt+Del for the USB keyboard emulation
Shared Clipboard/X11: support for BMP-format images, contributed by François Revol
Windows hosts: don’t cause massive DPC latency (only on certain hosts; still needs improving; bug #6242)
Windows hosts: consider symlinks when retrieving volume information (bug #11962)
Windows hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB 3.0 ports
Windows Additions: fixed misbehavior with guest display power management (WDDM driver only; bug #11170)
Linux Additions: fixed udev detection in the init script with Linux 3.x kernels
Windows guests: ability to track guest user idle times through the newly introduced event
IGuestUserStateChangedEvent

New in Oracle VM VirtualBox 4.3.0 Build 88827 Beta 2 (Sep 10, 2013)

New in Oracle VM VirtualBox 4.2.18 Build 88780 (Sep 6, 2013)

New in Oracle VM VirtualBox 4.3.0 Build 88249 Beta 1 (Aug 21, 2013)

This is a major update. The following major new features were added:
VMM: major rewrite of the VT-x code including many bug fixes and performance improve- ments (for example bug #9659)
GUI: keyboard shortcuts management (input page of global preferences extended with possibility to edit general keyboard shortcuts for VirtualBox Manager and Virtual Machine)
GUI: extended messaging mechanism (new non-modal popup overlays used to show non- critical warnings and provide user with additional information)
GUI: video capturing support (bug #4766)
GUI: host touch devices support (GUI passes host touch-events to guest)
Emulated USB touch devices
VRDP: support for IPv6
NAT: experimental virtual router mode: several VMs are attached to the same internal network and share one NAT service (see chapter 6.4, Network Address Translation Service (experimental), page 95)
In addition, the following items were fixed and/or added:
VMM: properly handle NMIs on Linux hosts with X2APIC enabled
GUI: update check uses https
GUI: lot of internal stuff rewritten (cleanup and bug-fixes)
Settings: global and per-VM default frontend configuration, useful to select the use of alternative VM frontends
Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased perfor- mance and may trigger crashes
Main: new event queue implementation which does not use the host’s native event queue for processing VirtualBox events anymore
Main: use the XDG standard configuration folder instead of .VirtualBox on systems where it is appropriate (bug #5099)
VBoxManage: list more information about hard disk/DVD/floppy media, and support the --long option to show really all available details
VBoxManage: added support for optional command line parameters for the automatic Guest Additions update
VBoxManage: added support for listing active guest sessions, guest processes and/or guest files via guestcontrol list
VBoxManage: added support for closing active guest sessions via guestcontrol session close --session-id | --session-name |--all
VBoxManage: added support for terminating active guest processes via guestcontrol process kill|close|terminate --session-id | --session-name ... or guestcontrol [p[s]]kill --session-id | --session-name ...
VBoxManage: added support for watching guest sessions via guestcontrol watch
3D support: several fixes
3D support: several fixes for Mac OS X hosts
OVF: several fixes
Keyboard: fix for reporting key sequences like Ctrl+Alt+Del for the USB keyboard emula- tion
Shared Clipboard/X11: support for BMP-format images, contributed by François Revol
Windows hosts: don’t cause massive DPC latency (bug #6242)
Windows hosts: consider symlinks when retrieving volume information (bug #11962)
Windows Additions: fixed misbehavior with guest display power management (WDDM driver only; bug #11170)
Windows guests: ability to track guest user idle times through the newly introduced event IGuestUserStateChangedEvent

New in Oracle VM VirtualBox 4.2.16 Build 86992 (Jul 5, 2013)

New in Oracle VM VirtualBox 4.2.14 Build 86644 (Jun 21, 2013)

VMM: another TLB invalidation fix for non-present pages
VMM: fixed a performance regression (4.2.8 regression; bug #11674)
GUI: fixed a crash on shutdown
GUI: prevent stuck keys under certain conditions on Windows hosts (bugs #2613, #6171)
VRDP: fixed a rare crash on the guest screen resize
VRDP: allow to change VRDP parameters (including enabling/disabling the server) if the VM is paused
USB: fixed passing through devices on Mac OS X host to a VM with 2 or more virtual CPUs (bug #7462)
USB: fixed hang during isochronous transfer with certain devices (4.1 regression; Windows hosts only; bug #11839)
USB: properly handle orphaned URBs (bug #11207)
BIOS: fixed function for returning the PCI interrupt routing table (fixes NetWare 6.x guests)
BIOS: don't use the ENTER / LEAVE instructions in the BIOS as these don't work in the real mode as set up by certain guests (e.g. Plan 9 and QNX 4)
DMI: allow to configure DmiChassisType (bug #11832)
Storage: fixed lost writes if iSCSI is used with snapshots and asynchronous I/O (bug #11479)
Storage: fixed accessing certain VHDX images created by Windows 8 (bug #11502)
Storage: fixed hang when creating a snapshot using Parallels disk images (bug #9617)
3D: seamless + 3D fixes (bug #11723)
3D: version 4.2.12 was not able to read saved states of older versions under certain conditions (bug #11718)
Main/Properties: don't create a guest property for non-running VMs if the property does not exist and is about to be removed (bug #11765)
Main/Properties: don't forget to make new guest properties persistent after the VM was terminated (bug #11719)
Main/Display: don't lose seamless regions during screen resize
Main/OVF: don't crash during import if the client forgot to call Appliance::interpret() (bug #10845)
Main/OVF: don't create invalid appliances by stripping the file name if the VM name is very long (bug #11814)
Main/OVF: don't fail if the appliance contains multiple file references (bug #10689)
Main/Metrics: fixed Solaris file descriptor leak
Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased performance and may trigger crashes
VBoxManage: fixed setting the parent UUID on diff images using sethdparentuuid
Linux hosts: work around for not crashing as a result of automatic NUMA balancing which was introduced in Linux 3.8 (bug #11610)
Windows installer: force the installation of the public certificate in background (i.e. completely prevent user interaction) if the --silent command line option is specified
Windows Additions: fixed problems with partial install in the unattended case
Windows Additions: fixed display glitch with the Start button in seamless mode for some themes
Windows Additions: Seamless mode and auto-resize fixes
Windows Additions: fixed trying to to retrieve new auto-logon credentials if current ones were not processed yet
Windows Additions installer: added the /with_wddm switch to select the experimental WDDM driver by default
Linux Additions: fixed setting own timed out and aborted texts in information label of the lightdm greeter
Linux Additions: fixed compilation against Linux 3.2.0 Ubuntu kernels (4.2.12 regression as a side effect of the Debian kernel build fix; bug #11709)
X11 Additions: reduced the CPU load of VBoxClient in drag'and'drop mode
OS/2 Additions: made the mouse wheel work (bug #6793)
Guest Additions: fixed problems copying and pasting between two guests on an X11 host (bug #11792)

New in Oracle VM VirtualBox 4.2.12 Build 84980 (Apr 12, 2013)

VMM: fixed a Guru Meditation on putting Linux guest CPU online if nested paging is disabled
VMM: invalidate TLB entries even for non-present pages
GUI: Multi-screen support: fixed a crash on visual-mode change
GUI: Multi-screen support: disabled guest-screens should now remain disabled on visual-mode change
GUI: Multi-screen support: handle host/guest screen plugging/unplugging in different visual-modes
GUI: Multi-screen support: seamless mode: fixed a bug when empty seamless screens were represented by fullscreen windows
GUI: Multi-screen support: each machine window in multi-screen configuration should have correct menu-bar now (Mac OS X hosts)
GUI: Multi-screen support: machine window View menu should have correct content in seamless/fullscreen mode now (Mac OS X hosts)
GUI: VM manager: vertical scroll-bars should be now updated on content/window resize
GUI: VM settings: fixed crash on machine state-change event
GUI: don't show warnings about enabled or disabled mouse integration if the VM was restored from a saved state
Virtio-net: properly announce that the guest has to handle partial TCP checksums (bug #9380)
Storage: Fixed incorrect alignment of VDI images causing disk size changes when using snapshots (bug #11597)
Audio: fixed broken ALSA & PulseAudio on some Linux hosts due to invalid symbol resolution (bug #11615)
PS/2 keyboard: re-apply keyboard repeat delay and rate after a VM was restored from a saved state (bug #10933)
BIOS: updated DMI processor information table (type 4): corrected L1 & L2 cache table handles
Timekeeping: fix several issues which can lead to incorrect time, Solaris guests sporadically showed time going briefly back to Jan 1 1970
Main/Metrics: disk metrics are collected properly when software RAID, symbolic links or rootfs are used on Linux hosts
VBoxManage: don't stay paused after a snapshot was created and the VM was running before
VBoxManage: introduced controlvm nicpromisc (bug #11423)
VBoxManage: don't crash on controlvm guestmemoryballoon if the VM isn't running (bug #11639)
VBoxHeadless: don't filter guest property events as this would affect all clients (bug #11644)
Guest control: prevent double CR in the output generated by guest commands and do NLS conversion
Linux hosts / guests: fixed build errors on Linux 3.5 and newer kernels if the CONFIG_UIDGID_STRICT_TYPE_CHECKS config option is enabled (bug #11664)
Linux Additions: handle fall-back to VESA driver on RedHat-based guests if vboxvideo cannot be loaded
Linux Additions: RHEL/OEL/CentOS 6.4 compile fix (bug #11586)
Linux Additions: Debian Linux kernel 3.2.0-4 (3.2.39) compile fix (bug #11634)
Linux Additions: added auto-logon support for Linux guests using LightDM as the display manager
Windows Additions: Support for multimonitor. Dynamic enable/disable of secondary virtual monitors. Support for XPDM/WDDM based guests
X11 Additions: support X.Org Server 1.14 (bug #11609)

New in Oracle VM VirtualBox 4.2.10 Build 84104 (Mar 15, 2013)

New in Oracle VM VirtualBox 4.2.8 Build 83876 (Feb 28, 2013)

This is a maintenance release. The following items were fixed and/or added:
VMM: fixed guest crash with huge amount of guest RAM on VT-x hosts (bug #11306)
GUI: fixed a layout bug in the Mac OS X clone VM dialog (bug #10982)
GUI: not all the translation tags were taken into account during the language switch (bug
#11342)
GUI: take-guest-screenshot dialog sometimes had no keyboard input available on Windows host
Main/Machine: fix generation of spurious event for inaccessible VMs which triggered an endless event generation loop in cooperation with the GUI which became unresponsive (4.2.6 regression, bug #11323)
Main/Display: fix for an access violation under certain conditions in multi-monitor config- urations (bug #10539)
Main/Metrics: network metrics are now collected for active (up) interfaces only, the state of an interface being evaluated when the associated metric is enabled via setupMetrics
Snapshots: reduce the time for merging snapshots under certain conditions
Storage: fixed data corruption after resizing a VDI image under certain circumstances (bug
#11344)
Storage: fixed non working online merging of snapshots (4.2.6 regression, bug #11359)
Storage: fixed crash when connecting to certain QNAP iSCSI targets
Storage: fixed incompatibility of VHD differencing images with Hyper-V (bug #5990)
Bridged Networking: fixed TCP pseudo header checksum computation for IPv6 (bug #9380)
3D support: fix Battlefield 1942 game crashes (bug #11369)
Settings: really sanitise the name of VM folders and settings file, the code was disabled
before (bug #10549)
Settings: allow to change VRDE settings for saved VMs
VBoxManage: don’t crash during screenshotpng if there is no display (bug #11363)
if gcc 4.7 is used to compile the 32-bit Linux host kernel (bug #11035)
Linux hosts: fixed inconsistent lock state and deadlock warnings on module load and VM startup when CONFIG_PROVE_LOCKING is enabled (bug #11318)
Mac OS X hosts: don’t crash the kernel during dtrace if the VBox kernel extensions are
loaded (10.6 hosts only; bug #11273)
Solaris / Mac OS X hosts: machine CPU load metrics now report 100% when all cores are fully utilized (used to be a single core)
Solaris 11 host installer: wait for any services left over from a previous installation to be terminated to avoid confusing SMF.
Guest Additions: don’t block signals for processes executed via guest control
Guest Additions: fixed a small memory leak in VBoxService (bug #10970)
Windows Additions: fixed shared folder issue with large reads/writes on 64 bit Windows guests (bug #11115)
Linux Additions: added auto-logon support for Linux guests using LightDM as the display manager
Linux Additions: Linux 3.8 compile fixes (bug #11036)
X11 Additions: fixed blocked SIGALRM in 3D desktop sessions (bug #10987)
X11 Additions: fixed an unresolved reference in vboxvideo_drv for X.org 6.8 guests and before (e.g. RHEL4; 4.2.0 regression)
X11 Additions: fixed screen automatic resizing for guests with X.org 1.3 or older (4.2.0 regression)

New in Oracle VM VirtualBox 4.2.4 Build 81684 (Oct 27, 2012)

New in Oracle VM VirtualBox 4.2.2 Build 81494 (Oct 19, 2012)

VMM: adapted to changes in Mac OS X 10.8.2 (bug #10965)
GUI: restored VM item tool-tip functionality (4.2 regression)
GUI: added group item tool-tip functionality
GUI: fixed handling of the .ova/.ovf file name association (4.2 regression)
GUI: it was not possible to change any setting before the first VM was created (bug #10928)
GUI: disable grouping action if all the selected items are full children list of the same group already
GUI: added menu for runtime drag-and-drop option change
GUI: cleanup shared-clipboard menu on visual-mode change
GUI: make sure VM receives keyboard focus on entering fullscreen-mode on Win host (bug #11051)
GUI: disable proxy authentication for security reasons
3D Support: DrawIndexedPrimitiveUP implementation fixes for the Windows WDDM video driver (bug #10929)
Storage: fixed a release assertion in the AHCI emulation when requests where canceled with asynchronous I/O disabled
Storage: fixed a hang during VM reset under certain circumstances (bug #10898)
NAT: fixed a crash under rare circumstances (Windows hosts only; bug #10128)
NAT: automatically use the host resolver if the host name server is set to some unusual loopback value (bug #10864)
E1000: fixed a VirtualBox crash during intensive network transfers (4.2 regression; bugs #10936, #10969, #10980)
ICH9: fixed PCI bridge initialization
USB mouse: ensure that the last mouse event doesn't get lost if no URBs are available
BIOS: certain legacy guests (e.g. Windows 95) didn't find the boot device after a warm reboot
BIOS: don't trash the palette in text modes when setting the border color
EFI: fixed OS X guest autoboot (4.2 regression)
VBoxManage: fixed output of showvminfo --machinereadable (bug #10973)
VBoxManage: fixed parsing of storageattach --discard (bug #11023)
VBoxManage: fixed wrong output of the HPET setting in showvminfo (bug #11065)
VBoxManage: fixed closing the guest session after executing a guest process via guest control
VBoxShell: adaptions to interface name changes
Guest Additions device: fixed a Guest Additions hang when a machine was reset after a crash
Linux hosts / guests: Linux 3.7-rc1 fixes
Linux Additions: support X.Org Server 1.13
Linux Additions: fixed a hang when the X server was restarted with old guest kernels
Linux Additions: fixed a VBoxService crash during CPU hot remove (bug #10964)
Windows Additions: fixed automatic screen resize issue for NT4 guests
OS/2 Additions: fixed shutdown hang
OS/2 Additions: fixed mouse driver panic
Solaris hosts: fixed autostart service going into maintenance mode after all VMs started
Solaris hosts: fixed linking the host driver with the dtrace module

New in Oracle VM VirtualBox 4.2.1 Build 80871 (Sep 21, 2012)

New in Oracle VM VirtualBox 4.2.0 Build 80737 (Sep 13, 2012)

Improved Windows 8 support, in particular many 3D-related fixes
GUI: VM groups (bug #288)
GUI: expert mode for wizards
GUI: allow to alter some settings during runtime
Support for up to 36 network cards, in combination with an ICH9 chipset configuration (bug #8805)
Resource control: added support for limiting network IO bandwidth; see chapter 6.9, Lim- iting bandwidth for network I/O, page 96 (bug #3653)
Added possibility to start VMs during system boot on Linux, OS X and Solaris; see chapter 9.24, Starting virtual machines during system boot, page 175 (bug #950)
Added experimental support for Drag’n’drop from the host to Linux guests. Support for more guests and for guest-to-host is planned. (bug #81)
Added support for parallel port passthrough on Windows hosts
Enhanced API for controlling the guest; please see the SDK reference and API documenta-
tion for more information
In addition, the following items were fixed and/or added:
Mac OS X hosts: sign application and installer to avoid warnings on Mountain Lion
VMM: fixed a potential host crash triggered by shutting down a VM when another VM was
running (only affected 32-bit hosts and 64-bit OS X hosts, 4.1 regression, bug #9897)
VMM:fixedapotentialhostcrashunderahighguestmemorypressure(seenwithWindows 8 guests)
VMM: improved VM context switch performance for Intel CPUs using nested paging
VMM: added support for FlushByASID features of AMD CPUs (Bulldozer and newer)
VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
VMM: support recent VIA CPUs (bug #10005)
VMM: fixed handling of task gates if VT-x/AMD-V is disabled
VMM: page fusion fixes
GUI: network operations manager
GUI: allow taking screenshots of the current VM window content (bug #5561)
GUI: allow automatically sorting of the VM list
GUI: allow starting of headless VMs from the GUI
GUI: allow reset, shutdown and poweroff from the Manager window
GUI: allow to globally limit the maximum screen resolution for guests
GUI: show the full medium part on hovering the list of recently used ISO images
GUI: do not create additional folders when a new machine has a separator character in its name (bug #6541)
GUI: don’t crash on terminate if the settings dialog is still open (bug #9973)
GUI: consider scaled DPI values when display fonts on Windows hosts (bug #9864)
GUI: if a bridged network interface cannot be found, don’t refuse to start the VM but allow the user to change the setting immediately (bug )
Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs #9364, #9604, #10491)
Clipboard: disable the clipboard by default for new VMs (see chapter 13.3.2.3, Clipboard, page 206). It can be enabled at any time using the VM menu.
Settings: sanitise the name of VM folders and settings file (bug #10549)
Settings: allow to store the iSCSI initiator secret encrypted
NAT: improvements for the built-in TFTP server (bugs #7385, #10286)
NAT: fixed memory leak when disabling the NAT engine (bug #10801)
E1000: 802.1q VLAN support (bug #10429)
Storage: implemented burning of audio CDs in passthrough mode
Storage: fixed audio CD passthrough for certain media players
Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
Storage: added support for QED images
Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
Storage: added readonly support for VHDX images
USB: don’t crash if a USB device is plugged or unplugged when saving or loading the VM state (SMP guests only)
Solaris additions: added support for X.org Server 1.11 and 1.12
Solaris additions: switched to using an in-kernel mouse driver
Windows hosts: no need to recreate host-only adapters after a VirtualBox update
Windows hosts: updated toolchain; make the source code compatible to VC 2010 and enable some security-related compiler options
Windows Additions: fixed memory leak in VBoxTray (bug #10808)

New in Oracle VM VirtualBox 4.2.0 Build 80667 RC 4 (Sep 10, 2012)

New in Oracle VM VirtualBox 4.1.22 Build 80657 (Sep 8, 2012)

New in Oracle VM VirtualBox 4.2.0 Build 80444 RC 3 (Aug 30, 2012)

Improved Windows 8 support, in particular many 3D-related fixes
GUI: VM groups (bug #288)
GUI: expert mode for wizards
GUI: allow to alter some settings during runtime
Support for up to 36 network cards, in combination with an ICH9 chipset configuration (bug #8805)
Resource control: added support for limiting network IO bandwidth; see chapter 6.9, Lim- iting bandwidth for network I/O, page 96
Added possibility to start VMs during system boot on Linux, OS X and Solaris; see chapter 9.24, Starting virtual machines during system boot, page 175 (bug #950)
Added experimental support for Drag’n’drop from the host to Linux guests. Support for more guests and for guest-to-host is planned. (bug #81)
Added support for parallel port passthrough on Windows hosts
Enhanced API for controlling the guest; please see the SDK reference and API documenta-  tion for more information In addition, the following items were fixed and/or added:
Mac OS X hosts: sign application and installer to avoid warnings on Mountain Lion
VMM: improved VM context switch performance for Intel CPUs using nested paging
VMM: added support for FlushByASID features of AMD CPUs (Bulldozer and newer)
VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
VMM: support recent VIA CPUs (bug #10005)
VMM: fixed handling of task gates if VT-x/AMD-V is disabled
GUI: network operations manager
GUI: allow taking screenshots of the current VM window content (bug #5561)
GUI: allow automatically sorting of the VM list
GUI: allow starting of headless VMs from the GUI
GUI: allow reset, shutdown and poweroff from the Manager window
GUI: allow to globally limit the maximum screen resolution for guests
GUI: show the full medium part on hovering the list of recently used ISO images
GUI: do not create additional folders when a new machine has a separator character in its name (bug #6541)
GUI: don’t crash on terminate if the settings dialog is still open (bug #9973)
GUI: consider scaled DPI values when display fonts on Windows hosts (bug #9864)
Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs #9364, #9604, #10491)
Clipboard: disable the clipboard by default for new VMs (see chapter 13.3.2.3, Clipboard, page 206). It can be enabled at any time using the VM menu.
Settings: sanitise the name of VM folders and settings file (bug #10549)
Settings: allow to store the iSCSI initiator secret encrypted
NAT: improvements for the built-in TFTP server (bugs #7385, #10286)
E1000: 802.1q VLAN support (bug #10429)
Storage: implemented burning of audio CDs in passthrough mode
Storage: fixed audio CD passthrough for certain media players
Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
Storage: added support for QED images
Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
Storage: added readonly support for VHDX images

New in Oracle VM VirtualBox 4.2.0 Build 80231 RC 2 (Aug 23, 2012)

GUI: VM groups (bug #288)
GUI: expert mode for wizards
GUI: allow to alter some settings during runtime
Support for up to 36 network cards, in combination with an ICH9 chipset configuration (bug #8805)
Resource control: added support for limiting network IO bandwidth; see chapter 6.9, Lim- iting bandwidth for network I/O, page 96
Added possibility to start VMs during system boot on Linux, OS X and Solaris; see chapter 9.24, Starting virtual machines during system boot, page 175 (bug #950)
Added experimental support for Drag’n’drop from the host to Linux guests. Support for more guests and for guest-to-host is planned. (bug #81)
Added support for parallel port passthrough on Windows hosts
Enhanced API for controlling the guest; please see the SDK reference and API documenta-
tion for more information
In addition, the following items were fixed and/or added:
Mac OS X hosts: sign application and installer to avoid warnings on Mountain Lion
VMM: improved VM context switch performance for Intel CPUs using nested paging
VMM: added support for FlushByASID features of AMD CPUs (Bulldozer and newer)
VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
VMM: support recent VIA CPUs (bug #10005)
GUI: network operations manager
GUI: allow taking screenshots of the current VM window content (bug #5561)
GUI: allow automatically sorting of the VM list
GUI: allow starting of headless VMs from the GUI
GUI: allow reset, shutdown and poweroff from the Manager window
GUI: allow to globally limit the maximum screen resolution for guests
GUI: show the full medium part on hovering the list of recently used ISO images
GUI: do not create additional folders when a new machine has a separator character in its name (bug #6541)
GUI: don’t crash on terminate if the settings dialog is still open (bug #9973)
Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs
#9364, #9604, #10491)
Settings: sanitise the name of VM folders and settings file (bug #10549)
Settings: allow to store the iSCSI initiator secret encrypted
E1000: 802.1q VLAN support (bug #10429)
Storage: implemented burning of audio CDs in passthrough mode
Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
Storage: added support for QED images
Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
Storage: added readonly support for VHDX images
Solaris additions: added support for X.org Server 1.11 and 1.12
Windows hosts: no need to recreate host-only adapters after a VirtualBox update
Windows hosts: updated toolchain; make the source code compatible to VC 2010 and enable some security-related compiler options
NAT: improvements for the built-in TFTP server (bugs #7385, #10286)

New in Oracle VM VirtualBox 4.1.20 Build 80170 (Aug 21, 2012)

New in Oracle VM VirtualBox 4.2.0 Build 80014 RC 1 (Aug 13, 2012)

Improved Windows 8 support, in particular many 3D-related fixes
GUI: VM groups (bug #288)
GUI: expert mode for wizards
GUI: allow to alter some settings during runtime
Support for up to 36 network cards, in combination with an ICH9 chipset configuration (bug #8805)
Resource control: added support for limiting network IO bandwidth; see chapter 6.9, Lim- iting bandwidth for network I/O, page 96
Added possibility to start VMs during system boot on Linux, OS X and Solaris; see chapter 9.24, Starting virtual machines during system boot, page 175 (bug #950)
Added experimental support for Drag’n’drop from the host to Linux guests. Support for more guests and for guest-to-host is planned. (bug #81)
Added support for Host parallel port passthrough on Windows platform In addition, the following items were fixed and/or added:
Mac OS X hosts: sign application and installer to avoid warnings on Mountain Lion
VMM: improved VM context switch performance for Intel CPUs using nested paging
VMM: added support for FlushByASID features of AMD CPUs (Bulldozer and newer)
VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
VMM: support recent VIA CPUs (bug #10005)
GUI: network operations manager
GUI: allow taking screenshots of the current VM window content (bug #5561)
GUI: allow automatically sorting of the VM list
GUI: allow starting of headless VMs from the GUI
GUI: allow reset, shutdown and poweroff from the Manager window
GUI: allow to globally limit the maximum screen resolution for guests
GUI: show the full medium part on hovering the list of recently used ISO images
GUI: do not create additional folders when a new machine has a separator character in its name (bug #6541)
GUI: don’t crash on terminate if the settings dialog is still open (bug #9973)
Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bug
#10491)
Settings: sanitise the name of VM folders and settings file (bug #10549)
Settings: allow to store the iSCSI initiator secret encrypted
E1000: 802.1q VLAN support (bug #10429)
Storage: implemented burning of audio CDs in passthrough mode
Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
Storage: added support for QED images
Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
Storage: added readonly support for VHDX images
Solaris additions: added support for X.org Server 1.11 and 1.12

New in Oracle VM VirtualBox 4.1.18 Build 78361 (Jun 20, 2012)

New in Oracle VM VirtualBox 4.1.16 Build 78094 (May 22, 2012)

New in Oracle VM VirtualBox 4.1.14 Build 77440 (Apr 26, 2012)

New in Oracle VM VirtualBox 4.1.12 Build 77218 (Apr 2, 2012)

New in Oracle VM VirtualBox 4.1.10 Build 76795 (Mar 13, 2012)

GUI: if 3D support on the host is not available for some reason, do not only disable this VM setting but also uncheck the checkbox
VMM: fixed a potential problem causing to schedule interrupts during SYSEXIT right after STI
VMM: fixed a potential guest memory corruption issue with page fusion
VMM: adjusted the module matching algorithm for page fusion a little, generally resulting in slightly more shared pages
Main: host interfaces no longer have “defaults” for IP address and network mask attributes
Main: don’t depend on a password for certain guest control operations (bug #10030)
3D Support: fixed Windows XP hosts support (4.1.8 regression; bugs #10071 and #10088
3D Support: rendering fixes for Linux hosts with NVIDIA graphics
3D Support: fixed saved state issues (4.1.8 regression; bug #10126)
3D Support: WDDM driver: fixed powershell_ise crashes (bug #10167), make WPF-based apps work with Aero enabled, fixed additional possible WinSAT crashes
VRDP: fixed remote clipboard compatibility issues with some clients
Storage: fixed a possible data corruption when compacting VDI or VHD images with snapshots (32-bit hosts only)
iSCSI: fixed crash when using incorrect credentials when authenticating with a LIO target (bug #10173)
Serial: don’t abort in host mode under rare error conditions (non-Windows hosts only)
SDK: actually ship current C bindings
SDK: fixed the Java glue code for JDK 1.7.0 (bug #9848)
SDK: added Python example
Metrics: make metrics collection more robust regarding blocked VMs
Web service: added SSL/TLS support
VBoxShell: fixed Guest Additions information lookup
Solaris installer: fixed dependency checking while installing VirtualBox in a zone
Linux hosts/guests: Linux 3.3-rc1 compile fixes
Solaris hosts: fixed debug kernel panics while opening module CTF data (#9591)
Mac OS X hosts: fixed Python support on Lion
Linux Additions: make 3D passthrough work on OL/RHEL 6.2 (bug #10010)
Linux Additions: fixed missing implementation when copying shared folder data through kernel high memory (bug #9878)
Linux Additions: make sure all data is written when closing a memory mapped file on a shared folder
Linux Additions: added support for X.Org Server 1.12
Solaris Additions: fixed guest kernel driver to load properly on guest reboot (4.1.8 regression; bug #10113)
Solaris Additions: fixed missing 64-bit OpenGL library VBoxOGL.so (bug #10151)
Solaris Additions: fixed VBoxService import and start for Solaris 11 guests.
Windows Additions: some Windows 8 adaptions
Windows Additions: several fixes for shared folders (bug #9753)
Guest control: miscellaneous bugfixes

New in Oracle VM VirtualBox 4.1.8 Build 75467 (Dec 19, 2011)

New in Oracle VM VirtualBox 4.1.6 Build 74713 (Nov 4, 2011)

New in Oracle VM VirtualBox 4.1.4 Build 74291 (Oct 4, 2011)

VMM: fixed PAE guests running on 32-bit hosts (4.0 regression; bug #9458)
VMM: fixed INVALID_PARAMETER guru meditation caused by insufficient memory conditions (4.1.0 regression; bug #9240)
VMM: fixed clobbered CPU registers during stos/lods/ins/outs emulation under rare circumstances
VMM: another fix for 64-bit guests on recent AMD CPUs
GUI: warn the user if he uses an outdated extension pack and allow to download and upgrade in that case (bug #8025)
GUI: fixed spurious LCtrl key events on some Windows hosts (4.0.6 regression; bug #373)
VBoxManage: another fix for extpack install --replace (bug #9308)
VBoxManage: allow to specify the UUID of the target image in convertfromraw
VRDP: fixed a rare crash when two or more clients connect to the server (bug #9503)
VRDP: fixed a case when a client was not resized correctly (bug #9242)
USB: make device capturing work on Windows hosts with usbhub class filter drivers installed (bug #9298); bugfixes for Windows host USB support
VHD: fixed reads crossing block boundaries (bug #8532)
VMDK: fixed progress indicator when creating split VMDK images
Floppy: fixed medium size detection for physical mediums (Windows hosts only)
Main: fixed VM initialization if a shared folder does not exist (bug #7941)
Main: fixed possible deadlock between hard disk enumeration and resetting of immutable disks (bug #9549)
Main: fixed not detaching of virtual storage after a snapshot restore operation (bug #8296)
Main: always reset modified state after restoring a snapshot (bug #9387)
Main: fixed writing of changed VM settings to disk when using snapshots (bug #8932)
Main: fixed taking screen shots (e.g. the preview window) for headless VMs if the Guest Additions are active
Virtio-net: fixed the problem with UDP packets exceeding MTU (bug #9370)
3D Support: fixed incorrect rendering and possible crashes when switching to/from fullscreen with enabled 2D acceleration
3D Support: fixed compiz under ubuntu 9.10
Guest control: Miscellaneous small bugfixes
Linux / Solaris hosts: don't use hard links in packages (4.1.2 regression; bug #9441)
Mac OS X hosts: fix installation issues when installed as root (bug #1578)
Mac OS X hosts: fixed packet capture issues with vboxnetX host-only interfaces (bug #8076)
Solaris hosts: fixed incoming multicast packets for Crossbow based bridged networking (bug #9532)
Solaris hosts: fixed starting EFI guests due to missing EFI ROM files (bug #9535)
Windows hosts installer: fixed ADDLOCAL usage on command line (4.1.0 regression; bug #9488)
Windows hosts installer: fixed dangling shortcut to the .chm help file (bug #9646)
Windows hosts installer: try to fix installation error 2869 which appeared under certain circumstances (bug #9664)
Windows hosts: VBoxHeadless should never open a separate console window (bug #3549)
Guest Additions: fixed hang while waiting for guest execution output (4.1.2 regression; bug #9446)
Linux Additions: add support for X.Org Server 1.11 (bug #9519)
Linux Additions: suppress an incorrect error message and allow a shared folder to be mounted in multiple places (bug #9627)
Linux Additions: start VBoxService correctly on openSUSE 12.1 (bug #6229)
Linux Additions: properly finish the installation even if the compilation of the DRM module fails (which is not fatal)
Solaris Additions: fixed memory leaks and panics while mounting (from console) and unmounting shared folders.
Windows Additions: fixed swapped mouse cursor hotspot coordinates (4.1.0 regression; bug #9447)
Windows Additions: fixed PAGE_FAULT_IN_NONPAGED_AREA BSOD in VBoxDisp.dll when running SnippingTool (bug #9508)
Windows Additions: make image viewer work correctly with Aero enabled (Vista and Windows 7)
Windows Additions: fixed incorrect window border blurs under Aero with ATI cards (Vista and Windows 7)
Windows Additions: fixed incorrect rendering when moving 3D applications outside guest desktop and back under Aero (Vista and Windows 7)
Windows Additions: fixed guest hangs when switching back from fullscreen text mode apps (bug #9636)

New in Oracle VM VirtualBox 4.1.2 Build 73507 (Aug 16, 2011)

VMM: fixed 64-bit guests on AMD Fusion CPUs (bug #8824)
VMM: fixed handling of the sysenter/sysexit machine instructions in 64-bit guests on Intel hosts
GUI: added linked clone support
GUI: fixed error check when changing the VM controller settings (4.1.0 regression; bug #9246)
GUI: fixed the inclusion of additional information (license, vendor, ...) on OVF export
GUI: when taking a snapshot from the VM selector, don't do a live snapshot
GUI: fixed immediate crash during start on certain environments due to a library version conflict
Guest control execution: implemented copying single files from guest to the host (directories and filters not supported yet)
Guest control execution: limited to serve up to 5 guest processes at a time by default
Main: return the correct RDP default port fixing settings warnings in the GUI if the remote display was enabled at runtime (bug #9368)
VBoxSVC: made the path comparison OS independent when images are registered (bug #9303)
VBoxSVC: several fixes/performance improvements for cloning of VMs
Snapshots: fixed "Solid-State drive" flag survival on snapshot creation (bug #9379)
VBoxManage: implemented copyfrom and stat guest control tools to copy files from guest to host and to check for existence of files on the guest
VBoxManage: fixed extpack install --replace (bug #9308)
VBoxManage: allow to start multiple VMs with startvm
VBoxManage: experimental support for SATA CD/DVD hotplugging
Mouse support: fixed an off-by-one pointer position error affecting Windows guests (bugs #7566, #9321)
VRDP: fixed a case when the screen was not redrawn correctly (bug #9242)
NAT: changed TCP connection establishment according to Winsock API requirements (Windows hosts only; bug #8919)
USB: fixed device recognition issues (bugs #9299) and fixed several device capturing issues (Windows hosts; bug #9299)
USB: fixed issues with remote filters being applied to local USB devices
OVA: fixed import of renamed OVA files (bug #9033)
Windows host: fixed icon for .VDI files (bug #9393)
Solaris hosts: fixed a bug preventing parallel usage of multiple host NICs with Crossbow based bridged networking
Linux hosts: fixed random kernel panics on host suspend / shutdown (4.1.0 regression; bug #9305)
Guest Additions: keep logged in user count in out-of-memory situations and warn about it
Solaris Additions: fixed shared folders due to missing symbols in the vboxfs module (4.0.12 / 4.1.0 regression; bug #9264)
Windows Additions: fixed file truncation on a shared folder with some applications (bugs #9276, #9315)
Windows Additions: fixed shared folder issues with antivirus software and 64 bit Windows guests (bug #9318)
Windows Vista and 7 guests: WDDM driver fixes and performance enhancements, fixed WinSAT crashes (#9267)
Linux Additions: fixed llseek() for Linux kernels 2.6.37 and above

New in Oracle VM VirtualBox 4.1.0 Build 73009 (Jul 19, 2011)

Support for cloning of VMs (bug #5853, see the manual for more information): 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 manual for more information
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 manual for more information
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
In addition, the following items were fixed and/or added:
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 manual for more information.
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 manual for more information)
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)

New in Oracle VM VirtualBox 4.0.12 Build 72916 (Jul 15, 2011)

New in Oracle VM VirtualBox 4.1.0 Build 72886 Beta 3 (Jul 15, 2011)

This version is a major update. The following major new features were added:
Support for cloning of VMs (bug #5853, see chapter 1.12, Cloning virtual machines, page
26)
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
ExperimentalsupportforPCIpassthroughforLinuxhosts,seechapter9.6,PCIpassthrough, page 145
Windows guests: Experimental WDDM graphics driver
Guest Additions: modules and features now are represented as facilities to have a common
interface for frontends
Networking: new network attachment mode “Generic Driver”, which offers an open plugin architecture for arbitrary and separately distributable virtual network implementations
New Networking Mode UDP Tunnel: allows to interconnect VMs running on different hosts easily and transparently, see chapter 6.2, Introduction to networking modes, page 85
Experimental support for SATA hotplug added. Currently only supported for hard disks and only with VBoxManage.
Solaris hosts: New Crossbow based bridged networking driver for Solaris 11 hosts (build 159 and above).
In addition, the following items were fixed and/or added:
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 net-
works and host-only networks
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 auto- matically 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 trans- mitting 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
VRDP: support for multimonitor client configurations with MS RDP clients
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
Solaris hosts: fixed preemption issue with Solaris 11 hosts (builds 166 and above)
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)

New in Oracle VM VirtualBox 4.1.0 Build 72740 Beta 2 (Jul 8, 2011)

New in Oracle VM VirtualBox 4.1.0 Build 72578 Beta 1 (Jul 8, 2011)

The following major new features were added:
Support for cloning of VMs (bug #5853)
GUI: enhanced wizard for creating new virtual disks
GUI: new wizard for copying virtual disks
VMM: raised the memory limit for 64-bit hosts to 1TB
Windows guests: Experimental WDDM graphics driver
Guest Additions: modules and features now are represented as facilities to have a common interface for frontends.
New Networking Mode: UDP Tunnel. Allows to interconnect VMs running on different hosts easily and transparently, see the manual for more information.
In addition, the following items were fixed and/or added:
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 View menu
GUI: added setting for the promiscuous mode policy for internal networks, bridged networks and host-only networks
GUI: the VM description is editable during the runtime of a VM
GUI: added proxy settings (bug #2870)
VBoxManage: changed syntax of the guestcontrol command group, fixed various bugs
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
Storage: virtual CD/DVD images will be detached if the guest ejects the medium
Floppy: several bugs have been fixed
BIOS: disk-related structures are now checksummed correctly
USB: many fixes for the Windows USB host driver
NAT: reduced memory footprint
Serial: announce the serial devices in the ACPI tables to make Windows guests find the virtual hardware (bug #7411)
VRDP: support for TLS connections
VRDP: support for multimonitor client configurations with MS RDP client
3D support: fixed GL_VERSION string for different locales (bug #8916)
Windows hosts: fixed copy'n'paste in the GUI and for the VM window (bug #4491)
Guest Additions: improved driver installation on Windows guests
Guest Additions: fixed high CPU usage while executing guest programs from the host

New in Oracle VM VirtualBox 4.0.10 Build 72479 (Jun 28, 2011)

New in Oracle VM VirtualBox 4.0.8 Build 71778 (May 17, 2011)

New in Oracle VM VirtualBox 4.0.6 Build 71344 (Apr 21, 2011)

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

New in Oracle VM VirtualBox 4.0.4 Build 70112 (Feb 17, 2011)

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

New in Oracle VM VirtualBox 4.0.2 Build 69518 (Jan 18, 2011)

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 #7917)
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 async 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

New in Oracle VM VirtualBox 4.0.0 Build 69151 (Dec 22, 2010)

Reorganization of VirtualBox into a base package and Extension Packs; see chapter 1.5, Installing VirtualBox and extension packs, see the manual for more information
New settings/disk file layout for VM portability; see chapter 10.1, Where VirtualBox stores its files, see the manual for more information
Major rework of the GUI (now called “VirtualBox Manager”):
Redesigned user interface with guest window preview (also for screenshots)
New “scale” display mode with scaled guest display; see chapter 1.8.5, Resizing the machine’s window, see the manual for more information
Support for creating and starting .vbox desktop shortcuts (bug #1889)
The VM list is now sortable
Machines can now be deleted easily without a trace including snapshots and saved states, and optionally including attached disk images (bug #5511; also, VBoxManage unregistervm --delete can do the same now)
Built-in creation of desktop file shortcuts to start VMs on double click (bug #2322)
VMM: support more than 1.5/2 GB guest RAM on 32-bit hosts
New virtual hardware:
Intel ICH9 chipset with three PCI buses, PCI Express and Message Signaled Interrupts (MSI); see chapter 3.4.1, “Motherboard” tab, see the manual for more information
Intel HD Audio, for better support of modern guest operating systems (e.g. 64-bit Windows; bug #2785)
Improvements to OVF support (see chapter 1.12, Importing and exporting virtual machines, see the manual for more information):
Open Virtualization Format Archive (OVA) support
Significant performance improvements during export and import
Creation of the manifest file on export is optional now
Imported disks can have formats other than VMDK
Resource control: added support for limiting a VM’s CPU time and IO bandwidth; see chapter 5.8, Limiting bandwidth for disk images, see the manual for more information
Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images
Storage: support for resizing VDI and VHD images; see chapter 8.21, VBoxManage modifyhd, see the manual for more information.
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
In addition, the following items were fixed and/or added:
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

New in Oracle VM VirtualBox 4.0.0 Build 68940 Beta 3 (Dec 15, 2010)

Reorganization of VirtualBox into a base package and Extension Packs;
Installing VirtualBox and extension packs,
New settings/disk file layout for VM portability; see chapter 10.1, Where VirtualBox stores its files
Major rework of the GUI (now called “VirtualBox Manager”):
Redesigned user interface with guest window preview (also for screenshots)
New “scale” display mode with scaled guest display; see chapter 1.8.5, Resizing the machine’s window, page 21
Support for creating and starting .vbox desktop shortcuts (bug #1889)
The VM list is now sortable
Machines can now be deleted easily without a trace including snapshots and saved states, and optionally including attached disk images (bug #5511; also, VBoxManage unregistervm --delete can do the same now)
Built-in creation of desktop file shortcuts to start VMs on double click (bug #2322)
Open Virtualization Format Archive (OVA) support; see chapter 1.12, Importing and export- ing virtual machines
VMM: support more than 1.5/2 GB guest RAM on 32-bit hosts
New virtual hardware:
Intel ICH9 chipset with three PCI buses, PCI Express and Message Signaled Interrupts (MSI); see chapter 3.4.1, “Motherboard” tab
Intel HD Audio, for better support of modern guest operating systems (e.g. 64-bit Windows; bug #2785)
Resource control: added support for limiting a VM’s CPU time and IO bandwidth; see chapter 5.8, 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
Guest Additions: support for copying files into the guest file system; the Windows Additions can now automatically update themselves (requires installed Windows Guest Additions 4.0 or later)
Language bindings: uniform Java bindings for both local (COM/XPCOM) and remote (SOAP) invocation APIs
Guest Additions: support for multiple virtual screens in Linux and Solaris guests using X.Org server 1.3 and later
In addition, the following items were fixed and/or added:
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)
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)
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
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: 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: significant performance improvements during export and import
OVF/OVA: creation of the manifest file on export is optional now
OVF/OVA: allow overwriting the target disk format on import
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)
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

New in Oracle VM VirtualBox 4.0.0 Build 68743 Beta 2 (Dec 10, 2010)

Reorganization of VirtualBox into a base package and Extension Packs; see chapter 1.5, Installing VirtualBox, page 14.
New settings/disk file layout for VM portability; see chapter 10.1, Where VirtualBox stores its files, page 149.
Major rework of the GUI (now called “VirtualBox Manager”):
Redesigned user interface with guest window preview (also for screenshots) New display mode with downscaled guest display Support for creating and starting .vbox desktop shortcuts (bug #1889) The VM list is now sortable
Machines can now be deleted easily without a trace including snapshots and saved states, and optionally including attached disk images (bug #5511; also, VBoxManage unregistervm --delete can do the same now)
Open Virtualization Format Archive (OVA) support; see chapter 1.12, Importing and export- ing virtual machines, page 25.
VMM: support more than 1.5/2 GB guest RAM on 32-bit hosts
New virtual hardware:
Intel ICH9 chipset with three PCI buses, PCI Express and Message Signaled Interrupts (MSI)
Intel HD Audio, for better support of modern guest operating systems (e.g. 64-bit Windows; bug #2785).
Resource control: added support for limiting a VM’s CPU time and IO bandwidth.
Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images
Storage: support for resizing VDI and VHD images
Guest Additions: support for copying files into the guest file system; the Windows Additions can now automatically update themselves (requires installed Windows Guest Additions 4.0 or later)
Language bindings: uniform Java bindings for both local (COM/XPCOM) and remote (SOAP) invocation APIs
Guest Additions: support for multiple virtual screens in Linux and Solaris guests using X.Org server 1.3 and later.
In addition, the following items were fixed and/or added:
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)
GUI: built-in creation of desktop file shortcuts to start VMs on double click (bug #2322)
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
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 XPDM Windows Explorer crashes on Windows Vista/Win7 guests
3D support: fixed Direct3D 8/9 support on WindowsXP guests
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: 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: significant performance improvements during export and import
OVF/OVA: creation of the manifest file on export is optional now
OVF/OVA: allow overwriting the target disk format on import
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)
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

New in Oracle VM VirtualBox 4.0.0 Build 68572 Beta 1 (Dec 7, 2010)

New settings/disk file layout for VM portability; see chapter 10.1, Where VirtualBox stores
its files, page 148.
Open Virtualization Format Archive (OVA) support; see chapter 1.12, Importing and export-
ing virtual machines, page 25.
VMM: support more than 1.5/2 GB guest RAM on 32-bit hosts
Language bindings: uniform Java bindings for both local (COM/XPCOM) and remote (SOAP) invocation APIs
Chipset: added support for the Intel ICH9 chipset with 3 PCI buses, PCI express and Mes- sage Signaled Interrupts (MSI)
Audio: Intel HD Audio is now available as guest hardware, for better support with modern guest operating systems (e.g. 64-bit Windows; bug #2785).
GUI: redesigned user interface with guest window preview
GUI: new display mode with downscaled guest display
Resource control: added support for limiting a VM’s CPU time and IO bandwidth.
Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images
Storage: support for resizing VDI and VHD images
Windows Additions: support for automatically updating the Guest Additions (requires in- stalled Windows Guest Additions 4.0 or later)
Guest Additions: support for copying files into the guest file system In addition, the following items were fixed and/or added:
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)
GUI: the guest VM list is now sortable
GUI: add the possibility to delete all harddisk attached to an VM, when this VM is deleted (bug #5511)
GUI: built-in creation of desktop file shortcuts to start VMs on double click (bug #2322)
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
Settings: deleting a machine now automatically deletes all snapshots and saved states as well, it is no longer necessary to manually delete snapshots first; VBoxManage unregis- tervm –delete can do the same now
Snapshots: added screenshots
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)
2D Video acceleration: multimonitor support
VRDP: fixed rare crash in multimonitor configuration
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: 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: significant performance improvements during export and import
OVF/OVA: creation of the manifest file on export is optional now
OVF/OVA: allow overwriting the target disk format on import
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)
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

New in Oracle VM VirtualBox 3.2.12 Build 68302 (Dec 2, 2010)

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)
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 Koran 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

New in Oracle VM VirtualBox 3.2.10 Build 66523 (Oct 11, 2010)

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 asyn- chronous 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 environ- ment 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)

New in Oracle VM VirtualBox 3.2.8 Build 64453 (Aug 6, 2010)

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
RDP 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)

New in Oracle VM VirtualBox 3.2.6 Build 63112 (Jun 25, 2010)

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 async 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 control execution
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 apps under 64bit Windows guests

New in Oracle VM VirtualBox 3.2.6 Beta 1 Build 62864 (Jun 19, 2010)

New in Oracle VM VirtualBox 3.2.4 Build 62467 (Jun 9, 2010)

New in Oracle VM VirtualBox 3.2.4 Build 62431 (Jun 7, 2010)

New in Oracle VM VirtualBox 3.2.2 Build 62298 (Jun 2, 2010)

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 loosing 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 apps on windows guests
3D support: fixed various host crashes (#2954, #5713, #6443)

New in Oracle VM VirtualBox 3.2.0 Build 61806 (May 18, 2010)

The following major new features were added:
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 guests (see the manual for more information)
Memory ballooning to dynamically in- or decrease the amount of RAM used by a VM (64-bit hosts only) (see the manual for more information)
Page Fusion automatically de-duplicates RAM when running similar VMs thereby increasing capacity. Currently supported for Windows guests on 64-bit hosts (see the manual for more information)
CPU hot-plugging for Linux (hot-add and hot-remove) and certain Windows guests (hot-add only) (see the manual for more information)
New Hypervisor features: with both VT-x/AMD-V on 64-bit hosts, using large pages can improve performance (see the manual for more information); 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 manual for more information)
USB tablet/keyboard emulation for improved user experience if no Guest Additions are available (see the manual for more information).
LsiLogic SAS controller emulation (see the manual for more information)
RDP video acceleration (see the manual for more information)
NAT engine configuration via API and VBoxManage
Use of host I/O cache is now configurable (see the manual for more information)
Guest Additions: added support for executing guest applications from the host system (replaces the automatic system presimparation feature; see the manual for more information)
OVF: enhanced OVF support with custom namespace to preserve settings that are not part of the base OVF standard
In addition, the following items were fixed and/or added:
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)
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 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)

New in Oracle VM VirtualBox 3.2.0 Build 61317 Beta 3 (May 13, 2010)

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 guests (see chapter 3.1.1, Mac OS X guests, page 47)
Memory ballooning to dynamically in- or decrease the amount of RAM used by a VM (64-bit hosts only) (see chapter 4.9, Memory ballooning, page 79)
CPU hot-plugging for Linux (hot-add and hot-remove) and certain Windows guests (hot-add only) (see chapter 9.4, CPU hot-plugging, page 158)
New Hypervisor features: with both VT-x/AMD-V on 64-bit hosts, using large pages can improve performance (see chapter 10.5, Nested paging and VPIDs, page 182); 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 chapter 3.5, Display settings, page 53)
USB tablet/keyboard emulation for improved user experience if no Guest Additions are available (see chapter 3.4.1, “Motherboard” tab, page 51).
LsiLogic SAS controller emulation
RDP video acceleration (see chapter 7.1.8, VRDP video redirection, page 111)
NAT engine configuration via API and VBoxManage
Use of host I/O cache is now configurable (see chapter 5.7, Disk images and I/O caching, page 91)
Guest Additions: added support for executing guest applications from the host system (replaces the automatic system preparation feature)
OVF: enhanced OVF support with custom namespace to preserve settings that are not part of the base OVF standard
In addition, the following items were fixed and/or added:
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)
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 Com- piz
Added support for virtual high precision event timer (HPET)
OVF:fixedmappingbetweentwoIDEchannelsinOVFandtheoneIDEcontroller
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

New in Oracle VM VirtualBox 3.1.8 Build 61349 (May 10, 2010)

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 simparavirtualized 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 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)

New in Oracle VM VirtualBox 3.1.6 Build 59338 (Mar 25, 2010)

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

New in Oracle VM VirtualBox 3.1.4 Build 57640 (Feb 12, 2010)

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 (#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 config 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 the the .ovf file during import (3.1 regression; bug #5762)
iSCSI: fix taking snapshots of a running VM (#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

New in Oracle VM VirtualBox 3.1.4 Build 57050 Beta 1 (Jan 29, 2010)

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
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
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
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)
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
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 conﬁg 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 re-
gression; bug #5902)
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 the the .ovf ﬁle during import (3.1 regression;
bug #5762)
iSCSI: ﬁx taking snapshots of a running VM (#5849)
Solaris hosts: several USB ﬁxes (including support for Apple iPod; bug #5873)
Solaris installer: ﬁxed USB module removal and Solaris 10 “id” binary incom-
patibility
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

New in Oracle VM VirtualBox 3.1.2 Build 56127 (Dec 17, 2009)

VMM: ﬁxed SMP stability regression
USB: ﬁxed USB related host crashes on 64 bits Windows hosts (#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

New in Oracle VM VirtualBox 3.1.0 Build 55467 (Nov 30, 2009)

Teleportation (aka live migration); migrate a live VM session from one host to another (see chapter 7.2, Teleporting, page 104)
VM states can now be restored from arbitrary snapshots instead of only the last one, and new snapshots can be taken from other snapshots as well (“branched snapshots”; see chapter 1.8, Snapshots, page 25)
2D video acceleration for Windows guests; use the host video hardware for overlay stretching and color conversion (see chapter 4.10, Hardware 2D video acceleration for Windows guests, page 73)
More ﬂexible storage attachments: CD/DVD drives can be attached to arbitrary storage controllers, and there can be more than one such drive (chapter 5, Virtual storage, page 76)
The network attachment type can be changed while a VM is running
Complete rewrite of experimental USB support for OpenSolaris hosts making use of the latest USB enhancements in Solaris Nevada 124 and higher
Signiﬁcant performance improvements for PAE and AMD64 guests (VT-x and AMD-V only; normal (non-nested) paging)
Experimental support for EFI (Extensible Firmware Interface; see chapter 3.12, Alternative ﬁrmware (EFI), page 58)
Support for paravirtualized network adapters (virtio-net; see chapter 6.1, Virtual networking hardware, page 89)
In addition, the following items were ﬁxed and/or added:
VMM: guest SMP ﬁxes for certain rare cases
GUI: snapshots include a screenshot
GUI: locked storage media can be unmounted by force
GUI: the a log window grabbed all key events from other GUI windows (bug #5291)
GUI: allow to disable USB ﬁlters (bug #5426)
GUI: improved memory slider in the VM settings
3D support: major performance improvement in VBO processing
3D support: added GL_EXT_framebuffer_object, GL_EXT_compiled_vertex_array support
3D support: ﬁxed crashes in FarCry, SecondLife, Call of Duty, Unreal Tournament, Eve Online (bugs #2801, #2791)
3D support: ﬁxed graphics corruption in World of Warcraft (#2816)
3D support: ﬁxed Final frame of Compiz animation not updated to the screen (#4653)
3D support: ﬁxed incorrect rendering of non ARGB textures under compiz
iSCSI: support iSCSI targets with more than 2TiB capacity
VRDP: ﬁxed occasional VRDP server crash (bug #5424)
Network: ﬁxed the E1000 emulation for QNX (and probably other) guests (bug #3206)
NAT: added host resolver DNS proxy (see chapter 9.14.6, Using the host’s resolver
as a DNS proxy in NAT mode, page 154)
VMDK: ﬁxed incorrectly rejected big images split into 2G pieces (bug #5523, #2787)
VMDK: ﬁxed compatibility issue with ﬁxed or raw disk VMDK ﬁles (bug #2723)
VHD: ﬁxed incompatibility with Hyper-V
Support for Parallels version 2 disk image (HDD) ﬁles; see chapter 5.2, Disk
image ﬁles (VDI, VMDK, VHD, HDD), page 79
OVF: create manifest ﬁles on export and verify the content of an optional manifest ﬁle on import
OVF: ﬁxed memory setting during import (bug #4188)
Mouse device: now ﬁve buttons are passed to the guest (bug #3773)
VBoxHeadless: ﬁxed loss of saved state when VM fails to start
VBoxSDL: ﬁxed crash during shutdown (Windows hosts only)
X11 based hosts: allow the user to specify their own scan code layout (bug #2302)
Mac OS X hosts: don’t auto show the menu and dock in fullscreen (#bug 4866)
Mac OS X hosts (64 bit): don’t interpret mouse wheel events as left click (#bug 5049)
Mac OS X hosts: ﬁxed a VM abort during shutdown under certain conditions
Solaris hosts: combined the kernel interface package into the VirtualBox main package
Solaris hosts: support for OpenSolaris Boomer architecture (with OSS audio backend).
Shared folders: VBOXSVR is visible in Network folder (Windows guests, bug #4842)
Shared folders: performance improvements (Windows guests, bug #1728)
Windows, Linux and Solaris Additions: added balloon tip notiﬁer if VirtualBox host version was updated and Additions are out of date
Solaris guests: ﬁxed keyboard emulation (bug #1589)
Solaris Additions: ﬁxed as_pagelock() failed errors affecting guest properties (bug #5337)
Windows Additions: added automatic logon support for Windows Vista and Windows 7
Windows Additions: improved ﬁle version lookup for guest OS information
Windows Additions: ﬁxed runtime OS detection on Windows 7 for session information
Windows Additions: ﬁxed crash in seamless mode (contributed by Huihong Luo)
Linux Additions: added support for uninstalling the Linux Guest Additions (bug #4039)
Linux guest shared folders: allow mounting a shared folder if a ﬁle of the same name as the folder exists in the current directory (bug #928)
SDK: added object-oriented web service bindings for PHP5

New in Oracle VM VirtualBox 3.1.0 Beta 3 Build 55271 (Nov 26, 2009)

Teleportation (aka live migration); migrate a live VM session from one machine to another
VM states can now be restored from arbitrary snapshots instead of only the last one, and new snapshots can be taken from other snapshots as well (“branched snapshots”; see chapter 1.8, Snapshots, page 25)
2D video acceleration for Windows guests; use the host video hardware for overlay stretching and colour conversion (see chapter 4.10, Hardware 2D video acceleration for Windows guests, page 73)
More ﬂexible storage attachments: CD/DVD drives can be attached to arbitrary storage controllers, and there can be more than one such drive (chapter 5, Virtual storage, page 76)
Support for Parallels version 2 disk image (HDD) ﬁles; see chapter 5.2, Disk image ﬁles (VDI, VMDK, VHD, HDD), page 79
The network attachment type can be changed while a VM is running
Experimental USB support for OpenSolaris hosts making use of the latest USB enhancements in Solaris Nevada 124 and higher
Signiﬁcant performance improvements for PAE and AMD64 guests (VT-x and AMD-V only; normal (non-nested) paging)
Experimental support for EFI (Extensible Firmware Interface; see chapter 3.12, Alternative ﬁrmware (EFI), page 58)
Improved network performance for Linux guests by providing a virtio network device
In addition, the following items were ﬁxed and/or added:
VMM: guest SMP ﬁxes for certain rare cases
GUI: snapshots include a screenshot
GUI: allow to disable USB ﬁlters (bug #5426)
3D support: major performance improvement in VBO processing
3D support: added GL_EXT_framebuffer_object, GL_EXT_compiled_vertex_array support
3D support: ﬁxed crashes in FarCry, SecondLife, Call of Duty, Unreal Tournament, Eve Online (bugs #2801, #2791)
3D support: ﬁxed graphics corruption in World of Warcraft (#2816)
3D support: ﬁxed Final frame of Compiz animation not updated to the screen (#4653)
3D support: ﬁxed incorrect rendering of non ARGB textures under compiz
iSCSI: support iSCSI targets with more than 2TiB capacity
VRDP: ﬁxed occasional VRDP server crash (bug #5424)
Network: ﬁxed the E1000 emulation for QNX (and probably other) guests (bug #3206)
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
OVF: create manifest ﬁles on export and verify the content of an optional manifest ﬁle on import
Mouse device: now ﬁve buttons are passed to the guest (bug #3773)
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)
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 (bug #4842)
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: ﬁxed crash in seamless mode (contributed by Huihong Luo)
Linux Additions: added support for uninstalling the Linux Guest Additions (bug #4039)
SDK: added object-oriented web service bindings for PHP5

New in Oracle VM VirtualBox 3.1.0 Beta 2 Build 55019 (Nov 20, 2009)

New in Oracle VM VirtualBox 3.0.12 Build 54655 (Nov 17, 2009)

New in Oracle VM VirtualBox 3.1.0 Beta 1 Build 54685 (Nov 11, 2009)

Teleportation (aka live migration); migrate a live VM session from one machine to another
VM states can now be restored from arbitrary snapshots instead of only the last one, and new snapshots can be taken from other snapshots as well (aka branched snapshots)
2D video acceleration for Windows guests; use the host video hardware for overlay stretching and colour conversion
The network attachment type can be changed while a VM is running
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 (Extended Firmware Interface)
In addition, the following items were fixed and/or added:
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: reinit VT-x and AMD-V after host suspend or hibernate; some BIOSes forget this (Windows hosts only; bug #5421)
GUI: prevent starting a VM with a single mouse click (bug #2676)
3D support: major performance improvement in VBO processing
3D support: added GL_EXT_framebuffer_object, GL_EXT_compiled_vertex_array support
3D support: fix crashes in FarCry, SecondLife, Call of Duty, Unreal Tournament, Eve Online (bugs #2801, #2791)
3D support: fix graphics corruption in World of Warcraft (#2816)
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)
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)
VMDK: fixed handling of split image variants
VHD: fixed incompatibility with Hyper-V
OVF: create manifest files on export and verify the content of an optional manifest file on import
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)
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: fixed changing case of file names (bug #2520)
Shared folders: VBOXSVR is visible in Network folder (bug #4842)
SDK: added object-oriented web service bindings for PHP5

New in Oracle VM VirtualBox 3.0.10 Build 54077 (Oct 29, 2009)

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
Windows hosts: fixed blue screen when using certain USB devices (bug #5129)
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)

New in Oracle VM VirtualBox 3.0.8 Build 53138 (Oct 6, 2009)

New in Oracle VM VirtualBox 3.0.6 Build 52128 (Sep 10, 2009)

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 simparameters, 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 Network: 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)

New in Oracle VM VirtualBox 3.0.4 Build 50677 (Aug 5, 2009)

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 devicefilter 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
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).

New in Oracle VM VirtualBox 3.0.2 Build 49928 (Jul 11, 2009)

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)
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 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)
Installer: support Pardus Linux
Solaris hosts: several installer fixes
Solaris host: fixed a preemption issue causing VMs to never start on Solaris 10 (bug #4328).
Solaris guest: fixed mouse integration for OpenSolaris 2009.06 (bug #4365)
Windows hosts: fixed high CPU usage after resuming the host (bug #2978)
OVF: accept ovf:/disk/ specifiers with a single slash in addition to ovf://disk/ (bug #4452)
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.

New in Oracle VM VirtualBox 3.0.0 Build 49315 (Jun 30, 2009)

This version is a major update. The following major new features were added:
Guest SMP with up to 32 virtual CPUs (VT-x and AMD-V only; see chapter 3.7.2.2 of the user manual)
Windows guests: ability to use Direct3D 8/9 applications / games (experimental; see chapter 4.8 of the user manual)
Support for OpenGL 2.0 for Windows, Linux and Solaris guests
In addition, the following items were ﬁxed and/or added:
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 to 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

New in Oracle VM VirtualBox 3.0.0 Beta 1 Build 48728 (Jun 18, 2009)

This version is a major update. The following major new features were added:
Guest SMP with up to 32 virtual CPUs (VT-x and AMD-V only)
Windows guests: ability to use Direct3D 8/9 applications / games (experimental)
Support for OpenGL 2.0 for Windows, Linux and Solaris guests
In addition, the following items were fixed and/or added:
Virtual mouse device: eliminated micro-movements of the virtual mouse which were confusing some applications (bug #3782)
Solaris hosts: allow suspend/resume on the host when a VM is running (bug #3826)
Solaris hosts: tighten the restriction for contiguous physical memory under certain conditions
VMM: fixed occassional 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)
GUI: added mini toolbar for fullscreen and seamless mode (Thanks to Huihong Luo)
GUI: redesigned settings dialogs
GUI: allow to create/remove one host-only network adapters
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)
VRDP: support Windows 7 RDP client
Networking: fixed another problem with TX checksum offloading with Linux
kernels up to version 2.6.18
VHD: properly write empty sectors when cloning of VHD images (bug #4080)
VHD: fixed crash when discarding snapshots of a VHD image
VBoxManage: fixed incorrect partition table processing when creating VMDK files giving raw partition access (bug #3510)
OVF: several OVF 1.0 compatibility fixes
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: fixed incorrect file timestamps, when using Windows guest on a Linux host (bug #3404)
Linux guests: new daemon vboxadd-service to handle time syncronization 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.
NAT: allow to configure socket and internal parameters
Registration dialog uses Sun Online accounts now.

New in Oracle VM VirtualBox 2.2.4 Build 47978 (May 30, 2009)

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 occassional crash due to insufﬁent memory
VMM: ﬁxed hanging 64 bits Solaris guests
VMM: restore from a saved state occassionally 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)
VMDK: ﬁxed creating snapshots
NAT: improvement of TCP connection establisment (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

New in Oracle VM VirtualBox 2.2.2 Build 46594 (Apr 28, 2009)

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 host, the guest didn’t receive a DHCP lease (bug #3655).
NAT: ﬁxed release assertion during poll() (bug #3667).
Clipboard: ﬁxed random crahes (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.

New in Oracle VM VirtualBox 2.2.0 Build 45846 (Apr 8, 2009)

This version is a major update. The following major new features were added:
OVF (Open Virtualization Format) appliance import and export (see chapter 3.8, Importing and exporting virtual machines, User Manual page 55)
Host-only networking mode (see chapter 6.7, Host-only networking, User Manual page 88)
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 chapter 4.8, Hardware 3D acceleration (OpenGL), User Manual page 70)
Added C API in addition to C++, Java, Python and Web Services
In addition, the following items were ﬁxed and/or added:
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 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)

New in Oracle VM VirtualBox 2.2.0 Build 45227 Beta 2 (Mar 28, 2009)

OVF (Open Virtualization Format) appliance import and export (see chapter 3.8,
Importing and exporting virtual machines, page 55)
Host-only networking mode (see chapter 6.7, Host-only networking, page 87)
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 chapter 4.8, Hardware
3D acceleration (OpenGL), page 69)
Experimental support for Mac OS X 10.6 (Snow Leopard) hosts running both the
64-bit and the 32-bit kernel
Added C API in addition to C++, Java, Python and Web Services
In addition, the following items were ﬁxed and/or added:
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
NAT: ﬁxed truncated downloads (ftp) (bug #3257)
NAT: blocked UDP packets caused a crash (bug #3426)
IDE: ﬁxed hard disk upgrade from XML-1.2 settings (bug #1518)
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 sup-
ported
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
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 point-
ing 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 showvminfo: don’t spam the release log if the additions don’t
support statistics information (bug #3457)
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 bits guest
GUI: deactivate 64 bits 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
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

New in Oracle VM VirtualBox 2.2.0 Build 44647 Beta 1 (Mar 18, 2009)

OVF (Open Virtualization Format) appliance import and export (see chapter 3.8,
Importing and exporting virtual machines, page 55)
Host-only networking mode (see chapter 6.7, Host-only networking, page 87)
Hypervisor optimizations with signiﬁcant performance gains for high context
switching rates
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 chapter 4.8, Hardware
3D acceleration (OpenGL), page 69)
Experimental support for OS X 10.6 (Snow Leopard) hosts running both the 64-
bit and the 32-bit kernel
In addition, the following items were ﬁxed and/or added:
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
NAT: Truncated downloads with NAT (ftp) (bug #3257)
NAT: Blocked UDP packets cause crash (bug #3426)
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 sup-
ported
VRDP: ﬁxed hangs when VRDP server is enabled or disabled in runtime
X11 guests: show the guest mouse pointer at the right position if the virtual
desktop is larger than the guest resolution (bug #2306)
Solaris guests: added xpg4/xcu4 dependency to the guest additions installer
(bug #3524)
Linux hosts: do proper reference counting to prevent unloading the vboxnetﬂt
module as long as this code is in use
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 vm’ commands now default to compact format
Hard disks: improved immutable disk support to auto-reset diff ﬁle at VM startup
GUI: enable the audio adapter by default for new VMs
GUI: warn if VT-x/AMD-V is not operational when starting a 64 bits guest
GUI: deactivate 64 bits 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/Mac OS X: ﬁxed disabled close button
GUI: improved error dialogs
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)

New in Oracle VM VirtualBox 2.1.4 Build 4283 (Feb 17, 2009)

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)

New in Oracle VM VirtualBox 2.1.2 Build 41885 (Jan 22, 2009)

This is a maintenance release. The following items were fixed and/or added:
USB: improved support for recent Linux hosts
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 intermittend 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: 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)

New in Oracle VM VirtualBox 2.1.0 (Dec 17, 2008)

New features:
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 user manual, chapter 1.6, 64-bit guests, page 16).
Added support for Intel Nehalem virtualization enhancements (EPT and VPID; see user manual, chapter 1.2, Software vs. hardware virtualization (VT-x and AMD-V), page 10)).
Experimental 3D acceleration via OpenGL (see user manual, chapter 4.8, Hardware 3D acceleration (OpenGL), page 66).
Experimental LsiLogic and BusLogic SCSI controllers (see user manual, chapter 5.1, Hard disk controllers: IDE, SATA (AHCI), SCSI, page 70).
Full VMDK/VHD support including snapshots (see user manual, chapter 5.2, Disk image ﬁles (VDI, VMDK, VHD), page 72).
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) .
Fixes:
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).

New in Oracle VM VirtualBox 2.0.6 (Nov 24, 2008)

VMM: ﬁxed Guru meditation when running 64 bits Windows guests (bug #2220)
VMM: ﬁxed Solaris 10U6 boot hangs (VT-x and AMD-V) bug #2220)
VMM: ﬁxed Solaris 10U6 reboot hangs (AMD-V only; bug #2220)
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
Windows host installer: added proper handling of open VirtualBox applications when updating the installation
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

New in Oracle VM VirtualBox 2.0.4 (Oct 24, 2008)

New in Oracle VM VirtualBox 2.0.2 (Sep 13, 2008)

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 (bug #2055)
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) (bug #1854)
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

New in Oracle VM VirtualBox 2.0 (Sep 4, 2008)

New in Oracle VM VirtualBox 1.6.6 (Sep 2, 2008)

New in Oracle VM VirtualBox 1.6.4 (Aug 1, 2008)

AMD-V, VT-x: stability fixes
Shared Folders: fixed host crash (Solaris host only, bugs #1336, #1646)
Shared Folders: fixed BSOD when debugging with Visual Studio (bug #1627)
Shared Folders: fixed BSOD when compiling on a shared folder (bug #1683)
Shared Folders: several fixes/stability improvements
SATA: fixed a race that could cause an occasional Windows guest system hang
SATA: fixed spurious BIOS log messages
Networking: fixed NIC tracing with NAT interfaces (bug #1790)
USB: fixed crash under certain conditions when unplugging a USB device (bug #1295)
Settings: fixed bug when converting 1.5.x settings
RDP: fixed enabling the RDP server during runtime
RDP: properly detect the rdesktop 1.6.0 RDP client
RDP: fixed RDP crash (bug #1521)
RDP: updated modified rdesktop client to version 1.6.0
GUI: NLS improvements
BIOS: added SMBIOS header to make Solaris and Vista recognize the DMI data
ACPI: properly hide a disabled floppy controller
VMM: small fixes to protected mode without paging
VMDK: fixed handling of .vmdk images without UUIDs
Windows hosts: fixed driver parameter validation issue in VBoxDrv.sys that could allow an attacker on the host to crash the system
Windows hosts: installer now contains web service examples mentioned in the manual
Linux hosts: properly deregister the Linux kernel module before uninstalling a Linux deb/rpm package
Linux hosts: kernel module works now with Linux 2.6.27
Linux hosts: fixed a typo in the vboxnet setup script for host network interfaces (bug #1714)
Linux hosts: fixed usage of tar in installer (bug #1767)
Linux hosts: fixed long guest shutdown time when serial port is enabled
Solaris hosts: refuse to install in Sun xVM hypervisor dom0
Solaris hosts: accept Solaris raw disks when for raw disk access
Windows additions: made installation of shared folders more robust
Windows additions: improved installation
Linux additions: accept every user-defined guest video mode in /etc/X11/xorg.conf
Linux additions: fixed startup order for recent Linux distributions (e.g. openSUSE 11)

New in Oracle VM VirtualBox 1.6.2 (Jun 6, 2008)

GUI: fixed a bug which prevented to add more than one SATA drive from the GUI
GUI: fixed a regression introduced in 1.6.0: the fullscreen mode was left on every guest video mode switch
GUI: fixed several minor issues
Networking: fixed a host interface networking regression introduced in 1.6.0
VMM: fixed starting of VMs with AMD-V enabled
VMM: massive performance enhancements for AMD-V
VMM: stability improvements for AMD-V on Windows hosts
VMM: correctly detect AMD CPUs with erratum 170 (AMD-V)
VMM: detect inconsistent timestamp counters on certain AMD Phenom CPUs (Windows host only)
VMM: fixed KVM check (Linux hosts only) XPCOM: fixed several races
VMM: fixed a regression introduced in 1.6.0: Windows stuck during installation
SATA: improved performance with Vista guests
SATA: fixed statistics counter
Shared Folders: several fixes (iTunes download, speed up browsing)
ATA/IDE: fixed boot from CDROM if a medium was added while the boot menu was active
Networking: provide an Intel PRO/1000 T Server (82543GC) network device emulation which is recognized by Windows XP guests
Networking: fixes for the E1000 emulation (don't crash if not attached, fixed a bug in the statistics counter implementation)
NAT: don't crash if the guest sent a DHCPRELEASE message with an invalid IP address
NAT: fixed ARP reply for the NAT gateway and for the NAT name server if the guest IP range was changed
Internal Networking: fixed shutdown if more than two VMs are connected to the same network
BIOS: allow to change the DMI informatiton (see chapter 9.13, Con'guring the BIOS DMI information, page 125)
RTC: fixed UIP emulation to prevent jumping of time in Solaris guests
Windows host: VirtualBox installation directory corrected for 64 bits Windows
Windows host: fixed VBoxVRDP.exe symlink
Windows host: solved locking problems in raw partition VMDK support
Windows host: fixed stability during high system load (page fault in KeQueryActiveProcessors)
MacOS X host: fixed crashes under certain conditions
Shared Folders: limited users without admin rights now also can use Shared Folders on Windows guests
Linux hosts: fixed default runlevel for the kernel module helper script
Solaris hosts: enabled support for VT-x and AMD-V
Solaris hosts: dynamic loading of libdlpi fixes a problem where Solaris 10 was not able to start a VM
Linux additions: fixed runlevels for kernel module helper scripts
Linux additions: compatibility fixes with Linux 2.6.26
Linux additions: fixed occasional guest kernel crash during unload of the vboxadd guest kernel module