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Changelog

VirtualBox 2.1.0 (released 2008-12-17)

This version is a major update. The following major new features were added:

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)

In addition, the following items were ﬁxed and/or added:

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)

VirtualBox 2.0.6 (released 2008-11-21)

This is a maintenance release. The following items were fixed and/or added:

VMM: ﬁxed Guru meditation when running 64 bits Windows guests (bug #2220)
VMM: ﬁxed Solaris 10U6 boot hangs (VT-x and AMD-V) bug #2565)
VMM: ﬁxed Solaris 10U6 reboot hangs (AMD-V only; bug #2565)
GUI: the host key was sometimes not properly displayed (Windows hosts only, bug #1996)
GUI: the keyboard focus was lost after minimizing and restoring the VM window via the Windows taskbar (bugs #784)
VBoxManage: properly show SATA disks when showing the VM information (bug #2624)
SATA: ﬁxed access if the buffer size is not sector-aligned (bug #2024)
SATA: improved performance
SATA: ﬁxed snapshot function with ports>1 (bug #2510)
E1000: ﬁxed crash under rare circumstances
USB: ﬁxed support for iPhone and Nokia devices (Linux host: bugs #470 & #491)
Windows host installer: added proper handling of open VirtualBox applications when updating the installation
Windows host installer: ﬁxed default installation directory on 64-bit on new installations (bug #2501)
Linux/Solaris/Darwin hosts: verify permissions in /tmp/vbox-$USER-ipc
Linux hosts: ﬁxed assertion on high network load (AMD64 hosts, ﬁx for Linux distributions with glibc 2.6 and newer (bug #616)
Linux hosts: don’t crash during shutdown with serial ports connected to a host device
Solaris hosts: ﬁxed incompatibility between IPSEC and host interface networking
Solaris hosts: ﬁxed a rare race condition while powering off VMs with host interface networking
Solaris hosts: ﬁxed VBoxSDL on Solaris 10 by shipping the required SDL library (bug #2475)
Windows additions: ﬁxed logged in users reporting via guest properties when using native RDP connections
Windows additions: ﬁxed Vista crashes when accessing shared folders under certain circumstances (bug #2461)
Windows additions: ﬁxed shared folders access with MS-Ofﬁce (bug #2591)
Linux additions: ﬁxed compilation of vboxvfs.ko for 64-bit guests (bug #2550)
SDK: added JAX-WS port caching to speedup connections

VirtualBox 2.0.4 (released 2008-10-24)

This is a maintenance release. The following items were fixed and/or added:

VMM: better error reporting for VT-x failures
VMM: don’t overﬂow the release log with PATM messages (bug #1775)
VMM: ﬁxed save state restore in real mode (software virtualization only)
GUI: work around a Qt bug on Mac OS X (bug #2321)
GUI: properly install the Qt4 accessible plugin (bug #629)
SATA: error message when starting a VM with a VMDK connected to a SATA port (bug #2182)
SATA: ﬁxed Guru mediation when booting OpenSolaris/64; most likely applies to other guests as well (bug #2292)
Network: don’t crash when changing the adapter link state if no host driver is attached (bug #2333)
VHD: ﬁxed bug which prevents booting from VHD images bigger than 4GB (bug #2085)
VRDP: ﬁxed a repaint problem when the guest resolution was not equal to the client resolution
Clipboard: don’t crash when host service initialization takes longer than expected (Linux hosts only; bug #2001)
Windows hosts: VBoxSVC.exe crash (bug #2212)
Windows hosts: VBoxSVC.exe memory leak due to a Windows WMI memory leak (Vista only) (bug #2242)
Windows hosts: VBoxSVC.exe delays GUI startup
Linux hosts: handle jifﬁes counter overﬂow (VM stuck after 300 seconds of host uptime; bug #2247)
Solaris hosts: ﬁxed host or guest side networking going stale while using host interface networking (bug #2474)
Solaris hosts: added support for using unplumbed network interfaces and Crossbow Virtual Network Interfaces (VNICs) with host interface networking
Solaris hosts: reworked threading model improves performance for host interface networking
Windows additions: ﬁxed crash when accessing deep directory structures in a shared folder
Windows additions: improved shared folder name resolving (bug #1728)
Windows additions: ﬁxed Windows 2000 shutdown crash (bug #2254)
Windows additions: ﬁxed error code for MoveFile() if the target exists (bug #2350)
Linux additions: ﬁxed seek() for ﬁles bigger than 2GB (bug #2379)
Linux additions: support Ubuntu 8.10
Linux additions: clipboard ﬁxes (bug #2015)
Web services: improved documentation and ﬁxed example (bug #1642)

VirtualBox 2.0.2 (released 2008-09-12)

This is a maintenance release. The following items were fixed and/or added:

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

VirtualBox 2.0.0 (released 2008-09-04)

This version is a major update. The following major new features were added:

64 bits guest support (64 bits host only)
New native Leopard user interface on Mac OS X hosts
The GUI was converted from Qt3 to Qt4 with many visual improvements
New-version notifier
Guest property information interface
Host Interface Networking on Mac OS X hosts
New Host Interface Networking on Solaris hosts
Support for Nested Paging on modern AMD CPUs (major performance gain)
Framework for collecting performance and resource usage data (metrics)
Added SATA asynchronous IO (NCQ: Native Command Queuing) when accessing raw disks/partitions (major performance gain)
Clipboard integration for OS/2 Guests
Created separate SDK component featuring a new Python programming interface on Linux and Solaris hosts
Support for VHD disk images

In addition, the following items were fixed and/or added:

VMM: VT-x fixes
AHCI/SATA: improved performance
GUI: keyboard fixes
Linux installer: properly uninstall the package even if unregistering the DKMS module fails
Linux additions: the guest screen resolution is properly restored
Network: added support for jumbo frames (> 1536 bytes)
Shared Folders: fixed guest crash with Windows Media Player 11
Mac OS X: Ctrl+Left mouse click doesn’t simulate a right mouse click in the guest anymore. Use Hostkey+Left for a right mouse click emulation. (bug #1766)

VirtualBox 1.6.6 (released 2008-08-26)

This is a maintenance release. The following items were fixed and/or added:

VMM: ﬁxed excessive logging (bug #1901)
VMM: AMD-V stability ﬁxes (bug #1685)
GUI: added support for Ctrl+Caps reversed keyboards (bug #1891)
SATA: ﬁxed BSODs of Windows guests on a SATA disk (bug #1941)
SATA: ﬁxed hard disk detection on Solaris 10 U5 (bug #1789)
VBoxHeadless: don’t start the clipboard service (bug #1743)
VBoxHeadless: added -vrdp parameter which allows to start the VM session without VRDP (bug #1960)
VBoxManage: ﬁxes to creating raw disk/partition VMDK ﬁles, now accepts removable media on Windows (bug #1869)
VRDP: ﬁxed communication with MS Remote Desktop Connection on Mac OS X (bug #1337)
VRDP: clipboard ﬁxes (bug #1410)
VRDP: ﬁxed crash during PAM authentication (bug #1953)
Shared Folders: ﬁxed a regression introduced in version 1.6.2: the shared folders service was sometimes not properly installed (Windows guests only, bug #1915)
Shared Folders: don’t deny to load a VM if a shared folder is not accessible (bug #822)
BIOS: allow to specify empty DMI strings (bug #1957)
OSE archive: added missing Makeﬁles (bug #1912)
Linux hosts: workaround for buggy gcc-4.3 compilers (e.g. openSUSE 11)
Linux hosts: one more ﬁx for compiling the kernel modules on Linux 2.6.27 (bug #1962)
Mac OS X hosts: shared folders unicode ﬁx
Solaris hosts: ﬁxed link issue (bug #1840)
Windows additions: allow to downgrade the package
Windows additions: ﬁxed corrupted installer icon on Windows 2000 (bug #1486)
Windows additions: ﬁxed bug when creating intermediate directories (bug #1870)
Windows additions: implemented /xres=, /yres= and /depth= switches for the installer (bug #1990)
Linux additions: properly unregister the misc device when unloading the kernel module
Linux additions: ﬁxed startup order for recent Linux distributions again (e.g. openSUSE 11)
Linux additions: attempt to ﬁx the autostart issue of !VBoxClient with Mandriva guests (bug #1699)
Linux additions: ﬁxed detection of patched Linux 2.6.18 kernels of RHEL5 / FC6 / CentOS 5.2 (bugs #1899, #1973)
Linux additions: added new mount ﬂags dmode, fmode, umask, dmask and fmask allowing to override the ﬁle mode (bug #1776)
Documentation: added a note that jumbo frames don’t work (bug #1877)
Documentation: document special host interface names on openSUSE11 (bug #1892)

VirtualBox 1.6.4 (released 2008-07-30)

This is a maintenance release. The following items were fixed and/or added:

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)

VirtualBox 1.6.2 (released 2008-06-06)

This is a maintenance release. The following items were fixed and/or added:

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 information (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)
Mac OS 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

VirtualBox 1.6.0 (released 2008-04-30)

This version is a major update. The following major new features were added:

Solaris and Mac OS X host support
Seamless windowing for Linux and Solaris guests
Guest Additions for Solaris
A webservice API
SATA hard disk (AHCI) controller
Experimental Physical Address Extension (PAE) support

In addition, the following items were ﬁxed and/or added:

GUI: added accessibility support (508)
GUI: VM session information dialog
VBoxHeadless: renamed from VBoxVRDP
VMM: reduced host CPU load of idle guests
VMM: many ﬁxes for VT-x/SVM hardware-supported virtualization
ATA/IDE: better disk geometry compatibility with VMware images
ATA/IDE: virtualize an AHCI controller
Storage: better write optimization, prevent images from growing unnecessarily.
Network: support PXE booting with NAT
Network: ﬁxed the Am79C973 PCNet emulation for Nexenta guests
NAT: improved builtin DHCP server (implemented DHCPNAK response)
NAT: port forwarding stopped when restoring the VM from a saved state
NAT: make subnet conﬁgurable
XPCOM: moved to libxml2
XPCOM: ﬁxed VBoxSVC autostart race
Audio: SoundBlaster 16 emulation
USB: ﬁxed problems with USB 2.0 devices
Mac OS X: ﬁxed seamless mode
Mac OS X: better desktop integration, several look’n’feel ﬁxes
Mac OS X: switched to Quartz2D framebuffer
Mac OS X: added support for shared folders
Mac OS X: added support for clipboard integration
Solaris: added host audio playback support (experimental)
Solaris: made it possible to run VirtualBox from non-global zones
Shared Folders: made them work for NT4 guests
Shared Folders: many bugﬁxes to improve stability
Seamless windows: added support for Linux guests
Linux installer: support DKMS for compiling the kernel module
Linux host: compatibility ﬁxes with Linux 2.6.25
Windows host: support for USB devices has been signiﬁcantly improved; many additional USB devices now work
Windows Additions: automatically install AMD PCNet drivers on Vista guests
Linux additions: several ﬁxes, experimental support for RandR 1.2
Linux additions: compatibility ﬁxes with Linux 2.6.25

VirtualBox 1.5.6 (released 2008-02-19)

GUI: ﬁxed several error messages
GUI: ﬁxed registration dialog crashes once and for all
GUI: really ask before resetting the VM
GUI: release mouse and keyboard before the host activates the screensaver
GUI: ﬁxed issue with license display on big screens
GUI: added setting for network name for internal networks
GUI: added setting for network device type
GUI: keyboard ﬁxes
GUI: seamless mode and fullscreen mode ﬁxes
GUI: ﬁxed soaked hostkey keyup event under certain conditions
GUI: more informative message dialog buttons
GUI: VM selector context menu
VBoxSDL: added -termacpi switch
VBoxSDL: ﬁxed automatic adaption of the guest screen resolution to the size of the VM window
VMM: under heavy guest activity, for example when copying ﬁles to/from a shared folder, the VM could crash with an assertion
VMM: added an option to select PIIX4 (improves compatibility with Windows guests created by VMware)
VMM: ﬁxed a bug which could lead to memory corruption under rare circumstances
VMM: improved performance of Solaris guests
VRDP: ﬁxed a 1.5.4 regression: VRDP client and server were out-of-sync if the VM was started using the GUI
VRDP: proper error handling if the VRDP library could not be loaded
VBoxManage: ﬁxed crash during clonevdi
VBoxManage: added ’list runningvms’ command
VBoxManage: improved the compatibility when reading the partition table of a raw disk
Shared Folders: added support for read-only shared folders
Shared Clipboard: several ﬁxes
Network: experimental support for E1000 device emulation
iSCSI: better check for misconﬁgured targets
iSCSI: allow to directly attach to internal networks with integrated mini IP stack
PulseAudio: don’t hang during VM initialization if no sound server is available
VDI: ﬁxed sized virtual disk images are now completely written during creation to workaround buggy sparse ﬁle handling on some OS (e.g. Vista)
VDI/VMDK: prevent indexing of .vdi and .vmdk ﬁles on Windows hosts
RDP: ﬁxed compilation of the Linux rdesktop client on newer Linux kernels
RDP: install rdesktop-vrdp on Linux hosts
ACPI: added sleep button event
Serial: proper handling of inaccessible host devices
Windows installer: allow smooth upgrade without deinstallation
Linux installer: ﬁxed Slackware detection regression
Linux installer: updated VBoxTunctl allowing to assign a tap device to a group on Linux kernels > 2.6.23
Windows additions: several ﬁxes, in particular for Windows NT4
Linux additions: ﬁxed installer for Kubuntu 8.04
Linux additions: add default video mode for handling video mode hints from the host
Linux host: compatibility ﬁxes with Linux > 2.6.24

VirtualBox 1.5.4 (released 2007-12-29)

USB 2.0 support
PulseAudio backend
GUI: ﬁxed accelerators in German translation
GUI: ﬁxed registration dialog crashes
GUI: allow to enter unicode characters to the name of the registration dialog
GUI: pre-select attached media in the disk manager when opened from the VM settings dialog
GUI: remember the last active VM
GUI: don’t accept empty paths for serial/parallel ports in XML
GUI: ﬁxed NumLock / CapsLock synchronization on Windows hosts
GUI: don’t start the kernel timer if no VM is active (Linux host)
VMM: improved compatibility with FreeBSD guests
VMM: properly restore CR4 after leaving VT-x mode
VMM: patch code and disassembler updates
VMM: with VT-x a pending interrupt could be cleared behind our back
VMM: workaround for missed cpuid patch (some Linux guests refuse to boot on multi-core CPUs)
VMM: ﬁxed code for overriding CPUID values
API: don’t crash when trying to create a VM with a duplicate name
API: don’t crash when trying to access the settings of a VM when some other VMs are not accessible
API: ﬁxed several memory leaks
ATA/IDE: ﬁxed SuSE 9.1 CD read installer regression
Floppy: ﬁxed inverted write protect ﬂag
USB: virtualize an EHCI controller
USB: several minor ﬁxes
Network: ﬁxed MAC address check
Network: host interface ﬁxes for Solaris guests
Network: guest networking stopped completely after taking a snapshot
Network: don’t crash if a network card is enabled but not attached
PXE: ﬁx for PXE-EC8 error on soft reboot
NAT: update the DNS server IP address on every DNS packet sent by the guest
VGA: reset VRAM access handers after a fullscreen update
VGA: don’t overwrite guest’s VRAM when displaying a blank screen
ACPI: implemented the sleep button event
VRDP: ﬁxed crash when querying VRDP properties
VRDP: netAddress ﬁxes
VRDP: ﬁxed the Pause/Break keys over VRDP
VRDP: sync NumLock / CapsLock sync over VRDP
VRDP: workaround for scrambled icons with a guest video mode of 16bpp
VRDP: reset modifier keys on RDP_INPUT_SYNCHRONIZE
VRDP: reset RDP updates after resize to prevent obsolete updates
Clipboard: Windows host/guest ﬁxes
Clipboard: ﬁxed a SEGFAULT on VM exit (Linux host)
Clipboard: ﬁxed a buffer overﬂow (Linux host)
Shared Folders: ﬁxed memory leaks
Linux installer: remove the old kernel module before compiling a new one
Linux host: compatibility ﬁxes with Linux 2.6.24
Linux host: script ﬁxes for ArchLinux
Linux host: load correct HAL library to determine DVD/ﬂoppy (libhal.so.1 not libhal.so)
Linux host: make sure the tun kernel module is loaded before initializing static TAP interfaces
Windows additions: ﬁxed hang during HGCM communication
Windows additions: ﬁxed delay when shutting down the guest
Linux additions: added sendﬁle support to allow HTTP servers to send ﬁles on shared folders
Linux additions: make additions work with Fedora 8 (SELinux policy added)
Linux additions: sometimes ARGB pointers were display incorrectly
Linux additions: several small script ﬁxes

VirtualBox 1.5.2 (released 2007-10-18)

Windows Installer: fixed installation on Windows 2000 hosts
Windows Installer: proper warning when installing a 32-bit VirtualBox version on 64-bit Windows and vice versa
Linux Installer: no longer require license acceptance during install, instead at first GUI startup (addresses issues with hanging installer on Debian based distributions)
GUI: added user registration dialog
GUI: fixed crashes on 64-bit Linux hosts
GUI: several fixes and improvements to seamless mode
GUI: fixed DirectDraw mode with certain video cards (e.g. Intel i915)
GUI: fixed incorrect guest resolution after leaving fullscreen mode
GUI: improved keyboard handling on Linux host
GUI: show fatal VM aborts (aka "Guru Meditation")
GUI: fixed crashes due to a display update race condition on some systems
GUI: added ACPI shutdown option to the VM close dialog
GUI: NLS improvements
BIOS: fixed floppy boot menu
BIOS: expose the VM UUID in the DMI/SMBIOS area
VGA: fixed CGA video modes
VGA: fixed 8-bit DAC handling (Solaris setup)
VMM: fixed issue with VT-x on Windows 64-bit hosts
VMM: improved compatibility with Linux KVM
VMM: fixed issues with Fedora 8 guests
VMM: fixed fatal errors while installing Windows guests when using AMD-V
VMM: fixed sporadic hangs when minimizing VM window and using VT-x/AMD-V
VMM: fixed high load of ksoftirq on tickless Linux hosts
VMM: fixed Windows 2000 guests hangs related to IRQ sharing
VMM: fixed sporadic errors during openSUSE 10.3 installation
VMM: fixed issue with Linux 2.6.23 guests
VMM: fixed issues with Solaris guests
VMM: fixed stability issue related to incorrect relocations
Serial: significantly reduced CPU utilization
Network: fixed issues with FreeBSD guests
Network: added MII support (100MBit detection fix)
Network: improved MAC address handling
Network: added PXE release logging
IDE: large reads from CD could exceed the I/O buffer size
Audio: load ALSA dynamically on Linux (i.e. do not fail when ALSA is not present)
VRDP: support additional RDP clients (SunRay, WinConnect, Mac OS X)
VRDP: fixed issues when client color depth is higher than server color depth
VRDP: make PAM authentication service name configurable
VRDP: increased stack size to deal with stack consuming PAM library calls
Additions: various fixes and enhancements to clipboard handling
Windows Additions: fixed issues with Additions on NT 4 guests
Windows Additions: added support for 8-bit video modes
Windows Additions: allow specifying custom resolutions for secondary screens
Windows Additions: several fixes and improvements for DirectDraw
Windows Additions: improved the mouse filter driver compatibility with other mouse drivers
Linux Additions: several fixes and enhancements to Shared Folders
Linux Additions: added support for X.org Server 1.4
Shared folders: fixed MS Powerpoint access issues (Linux host)
API: fixed RPC_E_CHANGED_MODE startup error on Windows hosts
API: fixed SMP race condition on Linux hosts
API: fixed stability issues on Windows hosts in low memory conditions

VirtualBox 1.5.0 (released 2007-09-03)

Major: Seamless windows
Major: Virtual serial ports
Major: Support for 64-bit Windows hosts
Major: Intel PXE 2.1 network boot
Major: Guest Additions for IBM OS/2 Warp
GUI: sometimes two mouse cursors were visible when Windows guest additions became active
GUI: added VT-x/AMD-V settings
GUI: disable 'Show log...' menu entry to prevent crash if VM list is empty
GUI: the log window grabbed the keyboard
GUI: fixed error handling if Linux host clipboard initialization fails
GUI: pass the Pause key and the PrtScrn key to the guest (Linux hosts)
GUI: increased maximum guest RAM to 2 GB (Windows host)
GUI: improved rendering performance (Windows host)
GUI: status lights for USB and shared folders
GUI: properly respect the DISPLAY environment variable
GUI: download Guest Additions from virtualbox.org in case they are not present locally
VRDP: support for multimonitor configurations in Windows guests
VRDP: support for MS RDP6 and MS RDP Mac clients
VRDP: added support for WinConnect RDP client
VRDP: performance improvements
VRDP: fixed sporadic client disconnects
VBoxManage: never delete existing target during clonevdi
VBoxManage: properly print the size of currently used hard disks
VMM: fixed Xandros Desktop 4.1 hang
VMM: fixed VT-x/AMD-V hang with newer versions of gcc (Linux hosts)
VMM: improved stability of VT-x
VMM: check for disabled AMD-V when detecting support
VMM: fixed AMD-V issue when running OS/2 guests
VMM: fixed application startup regressions (e.g. VideoReDo)
VMM: fixed regression that broke disk access in OS/2 and OpenBSD guests (possibly much more)
VMM: fixed crashes if memory allocation failed (Linux)
VMM: fixed enabling of Local APIC on AMD hosts (fixed Ubuntu Feisty installation kernel hang during boot)
VMM: fixed XFree86 4.3 (Debian/Sarge) segfaults when switching to text mode
VMM: refuse to start when KVM is active (Linux Host)
VMM: fixed bootup hangs with ReactOS
VMM: fixed out-of-memory errors under certain environments with enough appropriate memory available
API: fixed occasional crashes of the VBoxSVC server during VM shutdown (Linux host)
API: some components were not notified when mounting a CD/DVD
VMDK: improve geometry compatibility with existing VDMK images
IDE/Floppy: optionally make non-available host device non-fatal
IDE: improve emulation accuracy of the IRQ line between master and slave drive
IDE: guest could freeze when unmounting the CD/DVD drive
VGA: several text mode fixes in particular with Windows DOS boxes
USB: fixed some issues with Windows hosts
USB: fixed race condition between udev and USB filters (Linux host)
Shared Folders: reversed network provider order to increase mapping performance (Windows guest)
Shared Folders: browsable from Windows Explorer (Windows guests)
Shared Folders: stability fixes (Windows guest)
Shared Folders: case sensitivity fixes (Windows guest and Linux host)
Audio: fall back to the NULL audio driver if no voice could be opened
NAT: fixed crash
Guest Additions: reworked the shared clipboard for Linux hosts and guests based on user feedback about problems with individual applications
Guest Additions: don't allow to disable mouse pointer integration for Linux guests as an Xorg hardware mouse cursor cannot be turned into a software mouse cursor
Guest Additions: Linux guests shipping Xorg 1.3 (e.g. Fedora 7, Ubuntu Gutsy) are now supported
Guest Additions: added DirectDraw support to the Windows display driver

VirtualBox 1.4.0 (released 2007-06-06)

General: added support for OS X hosts
General: added support for AMD64 hosts
General: signed all executables and device drivers on Windows
GUI: added user interface for Shared Folders
GUI: added context menu for network adapters
GUI: added VM description field for taking notes
GUI: always restore guest mouse pointer when entering VM window (Windows host)
GUI: added configuration options for clipboard synchronization
GUI: improved keyboard handling on Linux hosts
GUI: added first run wizard
GUI: improved boot device order dialog
GUI: auto-resize did not work after save/restore
GUI: restore original window size when returning from fullscreen mode
GUI: fixed screen update when switching to fullscreen mode
GUI: the size of the VM window was sometimes resetted to 640x480
GUI: added localizations
GUI: various minor improvements
VBoxManage: added convertdd command
API: automatically start and terminate VBoxSVC on Linux and OS X hosts
VMM: increased startup performance due to lazy memory allocation
VMM: significantly increased maximum guest memory size
VMM: fixed issues with V86 mode
VMM: support V86 extensions (VME)
VMM: support guests with a full GDT
VMM: fixed boot hangs for some Linux kernels
VMM: improved FreeBSD and OpenBSD support
VMM: improved performance of guests that aggressively patch kernel code (very recent Linux 2.6 kernels)
VMM: added workaround for a design flaw in AMD AM2 CPUs where the timestamp counter shows large differences among CPU cores
VMM: fixed Linux guests with grsecurity
VMM: fixed issue on 2G/2G Linux kernels (even 1G/3G kernels should work)
VMM: fixed Linux detection of Local APIC on non-Intel and non-AMD CPUs
VMM: timing improvements with high host system loads (VM starvation)
VMM: experimental AMD SVM hardware virtualization support now also handles real and protected mode without paging
VMM: added system time offset parameter to allow for VMs to run in the past or future
VMM: provide an MPS 1.4 table if the IOAPIC is enabled
RDP: allow binding the RDP server to a specific interface
RDP: added support for clipboard synchronization
RDP: fixed problems with OS X RDP client
RDP: added support for multiple simultaneous connections to one VM
RDP: added support for MS RDP6 clients (Vista)
Storage: experimental support for VMDK images (writethrough mode only, no snapshots yet)
Storage: raw host disk support, including individual partitions
IDE: improve CHS geometry detection
IDE: fixed problem that only one VM could open an immutable image
NAT: allow more than one card configured for NAT networking
NAT: pass first entry in DNS search list (Linux host) or primary DNS suffix (Windows host) as domain name in DHCP
NAT: support UDP broadcasts, which enables using Windows shares
NAT: only warn if the name server could not be determined, no fatal error anymore
NAT: fix a potential problem with incorrect memory allocation
Internal Networking: fixed issue on Windows hosts
Host Interface Networking: fixed sporadic crashes on interface creation/destruction (Windows host)
Host Interface Networking: reworked TAP handling for Linux 2.6.18+ compatibility
PXE: show error for unsupported V86 case
PXE: small fix for parsing PXE menu entry without boot server IP
Network: fixed network card hang after save/restore
USB: Rewrote Windows USB handling without the need for a filter driver
USB: Possible to steal arbitrary devices in Windows
Serial: added serial ports with support for named pipes (local domain sockets) on the host
Audio: fixed problem with ALSA on Linux before 2.6.18 blocking other ALSA clients on the system
Audio: fixed problem with ALSA on AMD64 hosts
Input: fixed PS/2 mouse detection in Win 3.x guests
Shared Folders: fixed VM save/restore behaviour
Shared Folders: functionality and stability fixes
Shared Folders: allow non admin users to map folders
Additions: added clipboard synchronization
Windows Additions: fixed dynamic resolution changes after save/restore
Windows Additions: added AMD PCNet driver for Windows Vista guests (with kind permission from AMD)
Linux Additions: fixed a dependency problem which caused the vboxadd kernel module sometimes start after the X server
Linux Additions: make VBox version visible in Linux modules with modinfo
Linux Additions: make X11 guest video driver accept arbitrary X resolutions
Linux Additions: make X11 setup work if /tmp uses a separate file system
Linux Additions: better support unknown distributions
Linux Installer: force a non-executable stack for all binaries and shared libraries
Linux Installer: make it work on SELinux-enabled systems
Linux Installer: ship VBoxTunctl

VirtualBox 1.3.8 (released 2007-03-14)

Windows installer: fixed installation problem if UAC is active
Linux installer: added RPM for rhel4 and Mandriva 2007.1
Linux installer: remove any old vboxdrv modules in /lib/modules/*/misc
Linux installer: many small improvements for .deb and .rpm packages
Linux installer: improved setup of kernel module
GUI: Host-Fn sends Ctrl-Alt-Fn to the guest (Linux guest VT switch)
GUI: fixed setting for Internal Networking
GUI: show correct audio backend on Windows (dsound)
GUI: improved error messages if the kernel module is not accessible
GUI: never fail to start the GUI if the kernel module is not accessible
VMM: fixed occasional crashes when shutting down Windows TAP device
VMM: fixed issues with IBM's 1.4.2 JVM in Linux guests
RDP: fixed color encoding with 24bpp
BIOS: zero main memory on reboot
BIOS: added release logging
USB: fixed parsing of certain devices to prevent VBoxSVC crashes
USB: properly wakeup suspended ports
USB: fixed a problem with unplugged USB devices during suspend
Audio: fixed crashes on Vista hosts
NAT: allow configuration of incoming connections (aka port mapping)
Network: hard reset network device on reboot
iSCSI: fixed a hang of unpaused VMs accessing unresponsive iSCSI disks
Linux Additions: support Xorg 7.2.x
Linux Additions: fixed default video mode if all other modes are invalid
Linux Additions: set default DPI to 100,100
Linux Additions: fixed initialization of video driver on X server reset

VirtualBox 1.3.6 (released 2007-02-20)

Windows installer: perform installation for all users instead of just the current user (old behavior still available)
Linux installer: fixed license display to not block installation
Linux installer: added RPM for openSUSE 10.2
GUI: fixed problems with several keyboard layouts on Linux hosts
GUI: added online help on Linux hosts (using kchmviewer)
GUI: fixed handle leak on Windows hosts
Graphics: increased VRAM limit to 128MB
BIOS: fixed CD/DVD-ROM detection in Windows Vista guests
VMM: fixed incompatibility with OpenBSD 4.0
VDI: fixed issues with snapshot merging
Network: fixed incompatibility between Vista UAC and Host Interface Networking
Network: fixed issues with Windows NT 4.0 guests
Audio: fixed problem with ALSA on Linux before 2.6.18 causing system reboots
RDP: added support for MS RDP 6.0 clients
RDP: fixed issue with PAM authentication on certain distributions
RDP: fixed sporadic disconnects with MS RDP clients
RDP: fixed memory leak
iSCSI: improved behavior when pausing a VM with iSCSI connections
iSCSI: improved read timeout handling

VirtualBox 1.3.4 (released 2007-02-12)

General: fixed unresolved symbol issue on Windows 2000 hosts
General: added warnings at VirtualBox startup when there is no valid Linux kernel module
General: fixed problem with unrecognized host CDROM/DVD drives on Linux
General: fixed compatibility issue with SELinux
GUI: improved USB user interface, easier filter definitions, menu to directly attach specific devices
GUI: added VM settings options for VRDP
GUI: fixed GDI handle leak on Windows hosts
GUI: worked around issue in the Metacity window manager (GNOME) leading to unmovable VM windows
GUI: show an information dialog before entering fullscreen mode about how to get back
GUI: several fixes and improvements
VMM: fixed occasional crashes when shutting down a Windows guest
VMM: fixed crash while loading Xorg on openSUSE 10.2
VMM: fixed problems with OpenBSD 3.9 and 4.0
VMM: fixed crash while loading XFree86 in SUSE 9.1
VMM: fixed Debian 3.1 (Sarge) installation problem (network failure)
VMM: fixed crash during SUSE 10.2 installation
VMM: fixed crash during Ubuntu 7.04 RC boot
VMM: fixed crash during ThinClientOS (Linux 2.4.33) bootup
ATA/IDE: pause VM when host disk is full and display message
ATA/IDE: fixed incompatibility with OpenSolaris 10
VDI containers: do not allocate blocks when guest only writes zeros to it (size optimization when zeroing freespace prior to compacting)
CDROM/DVD: fixed media recognition by Linux guests
Network: corrected reporting of physical interfaces (fixes Linux guest warnings)
Network: fixed IRQ conflict causing occasional major slowdowns with XP guests
Network: significantly improved send performance
Audio: added mixer support to the AC'97 codec (master volume only)
Audio: added support for ALSA on Linux (native, no OSS emulation)
iSCSI: improved LUN handling
iSCSI: fixed hang due to packet overflow
iSCSI: pause VM on iSCSI connection loss
Linux module: never fail unloading the module (blocks Ubuntu/Debian uninstall)
Linux module: improved compatibility with NMI watchdog enabled
Windows Additions: fixed hardware mouse pointer with Windows 2003 Server guests
Linux Additions: compile everything from sources instead of using precompiled objects
Linux Additions: better compatibility with older glibc versions
Linux Additions: when uninstalling, only delete the files we put there during installation, don't remove the directory recursively to prevent unwanted data loss
Linux Installer: added support for Slackware
Linux Additions: added support for Linux 2.4.28 to 2.4.34
RDP: fixed sporadic disconnects with MS RDP clients
RDP: fixed race condition during resolution resize leading to rare crashes

VirtualBox 1.3.2 (released 2007-01-15)

first public version

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