= Changelog for VirtualBox 4.0 = '''!VirtualBox 4.0.4''' (released 2011-02-17)[[BR]][[BR]] This is a maintenance release. The following items were fixed and/or added: * 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 '''!VirtualBox 4.0.2''' (released 2011-01-18)[[BR]][[BR]] This is a maintenance release. The following items were fixed and/or added: * 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 '''!VirtualBox 4.0.0''' (released 2010-12-22)[[BR]][[BR]] This version is a major update. The following major new features were added: * 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 For the changelog of previous !VirtualBox series, have a look at * [wiki:Changelog-3.2 VirtualBox 3.2] * [wiki:Changelog-3.1 VirtualBox 3.1] * [wiki:Changelog-3.0 VirtualBox 3.0] * [wiki:Changelog-2.2 VirtualBox 2.2] * [wiki:Changelog-2.1 VirtualBox 2.1] * [wiki:Changelog-2.0 VirtualBox 2.0] * [wiki:Changelog-1.6 VirtualBox 1.6]