VirtualBox versions

v7.0 [Aug 27, 2022]
- VMM: Fixed EFLAGS.TF handling for CPUID instructions when Hyper-V is used.
- 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.
- GUI: Brought back Restore current snapshot checkbox of Close VM dialog.
- 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.
- virtio-net: Follow up fixes for FreeBSD 12.3 and pfSense 2.6.0.
- 3D: Fixed various graphics issues with Windows 7 guests.
- 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.

v6.1.4 [Oct 6, 2019]
This is a maintenance release. The following items were fixed and/or added:
- GUI: Fixed crash when using Qt on Xwayland sessions (bug #19583).
- GUI: Fixed mouse pointer doesn't work properly in Windows guests when scaling is on (bug #19597).
- VBoxManage: Fixed crash of 'VBoxManage internalcommands repairhd' when processing invalid input (bug #19579).
- Settings: disable audio input and audio output by default for new VMs (bug #19527).
- Guest Additions: Fixed resizing and multi monitor handling for Wayland guests. (bug #19496).
- Guest Additions: Fixed VBoxClient error: The parent session seems to be non-X11. (bug #19590).
- Linux host and guest: Linux kernel version 5.7 support. (bug #19516).

v6.0.4 [Oct 28, 2018]
- Virtualization core: support Shanghai/Zhaoxin CPUs.
- User interface: handle command line arguments to VirtualBox correctly (bugs #18206 and #18197).
- User interface: improvements to machine manager window, virtual optical disk creator, storage selector window and log viewer window.
- User interface: various small fixes and improvements.
- Audio: implemented time scheduling for the AC'97 device emulation to keep audio and video in sync.
- Graphics: basic support for VMSVGA graphics device in virtual machines using EFI.
- Network: fix occasional NATNet crashes (bug #13899).
- Network: worked around problems in certain PCnet drivers on old operating systems.
- Serial: fixed connecting to pseudo terminals on POSIX hosts (6.0.0 regression; bug #18319).
- Linux hosts and guests: fix for building kernel modules against Linux 5.0. Thank you Kyle Laker.

v5.1.38 [Jun 5, 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)

v4.3.40 [Aug 21, 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
- 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
- VMM: fixed PATM saved state incompatibility for software virtualized VMs
- 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
- 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
- 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
- X11 Additions/3D: fix freezes starting 3D desktop
- X11 Additions/3D: fix depth buffer support
- X11 Additions/3D: fix Age Of Empires 3 rendering
- Windows Additions/3D: fix Google Earth plugin rendering
- Windows Additions/WDDM: autoresize fixes

v4.2.36 [Aug 6, 2012]
- GUI: fixed validation warning on global settings / proxy page
- GUI: fixed crash with multiple guest screens on certain conditions (OS X hosts only)
- VBoxBalloonCtrl: fixed command line argument handling of ballooning module
- VRDP: fixed occasional crash during a video playback in the guest
- BIOS: fixed broken DMI information (4.2 regression)
- BIOS: workaround for booting from Windows 2000 floppy disks
- EFI: fixed video mode selection loss on VM reboot
- Parallel: fixed parallel port printing failure/ paper queue empty error (Windows hosts only)
- NAT: fixed crash on alias-less DNS responses when host-resolver is used
- Storage: fixed hang under rare circumstances

v4.1.36 [Jul 2, 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)

v4.0.36 [Jan 15, 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)

v3.0.14 [Jun 17, 2009]
As a an improvement on this version, there now is full support if a crash should occur. Easily switch back to a previous restoration point and avoid the need of frequent backups. A virtual SATA controller has been integrated to operate faster.