= Changelog for VirtualBox 4.0 = '''!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]