VirtualBox

Changes between Version 175 and Version 176 of Changelog-5.1


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Timestamp:
Oct 15, 2013 12:11:44 PM (11 years ago)
Author:
Frank Mehnert
Comment:

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  • Changelog-5.1

    v175 v176  
    22
    33This page lists all changes of the !VirtualBox 4.2 '''[wiki:Downloads releases]'''.[[BR]]
    4 All branches: [wiki:Changelog 4.2] · [wiki:Changelog-4.1 4.1] · [wiki:Changelog-4.0 4.0] · [wiki:Changelog-3.2 3.2] · [wiki:Changelog-3.1 3.1] · [wiki:Changelog-3.0 3.0] · [wiki:Changelog-2.2 2.2] · [wiki:Changelog-2.1 2.1] · [wiki:Changelog-2.0 2.0] · [wiki:Changelog-1.6 1.6]
     4All branches: [wiki:Changelog 4.3] · [wiki:Changelog-4.2 4.2] · [wiki:Changelog-4.1 4.1] · [wiki:Changelog-4.0 4.0] · [wiki:Changelog-3.2 3.2] · [wiki:Changelog-3.1 3.1] · [wiki:Changelog-3.0 3.0] · [wiki:Changelog-2.2 2.2] · [wiki:Changelog-2.1 2.1] · [wiki:Changelog-2.0 2.0] · [wiki:Changelog-1.6 1.6]
    55
    6 '''!VirtualBox 4.2.18''' (released 2013-09-06)[[BR]][[BR]]
    7 This is a maintenance release. The following items were fixed and/or added:
    8  * VMM: properly handle NMIs on Linux hosts with X2APIC enabled
    9  * VMM: fixed potential crashes with 64-bit guests on 32-bit hosts (bug #11979)
    10  * GUI / seamless: properly handle mouse wheel scroll events
     6'''!VirtualBox 4.3.0''' (released 2013-10-15)[[BR]][[BR]]
     7This version is a major update. The following major new features were added:
     8 * VMM: major rewrite of the VT-x code and the AMD-V code including many bug fixes and performance improvements (for example bug #9659)
     9 * VMM: introduced a lightweight instruction interpreter for situations not handled by hardware virtualization
     10 * GUI: extended messaging mechanism (new non-modal popup overlays used to show non-critical warnings and provide user with additional information)
     11 * GUI: keyboard shortcuts management (input page of global preferences extended with possibility to edit general keyboard shortcuts for !VirtualBox Manager and Virtual Machine)
     12 * GUI: video capturing support (bug #4766)
     13 * Added USB touch device emulation
     14 * Added experimental support for webcam passthrough complementing USB passthrough (see the manual for more information)
     15 * Added SCSI CD-ROM emulation, including boot support
     16 * VRDP: support for IPv6
     17 * Guest Control: guest sessions now are running in dedicated, impersonated session processes (needs at least Guest Additions 4.3 installed)
     18 * Guest Control: implemented IGuestFile support
     19 * 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)
     20In addition, the following items were fixed and/or added:
     21 * VMM: significantly improved performance of NetWare 5.x/6.x guests on host systems without nested paging support
     22 * VMM: fixed losing host NMIs while in VT-x guest-context
     23 * VMM: changed order of actions in emulated task switch (bug #10532)
     24 * VMM: allow to activate VT-x while in SMX mode and provide more information if that is not possible
     25 * GUI: update check uses https
     26 * GUI: numerous minor internal cleanups and bug fixes
     27 * GUI: HID LEDs synchronization when switching between guest window(s) and host (Mac OS X hosts only)
    1128 * GUI, VBoxManage: when unregistering a VM, also unregister the hard disk images which are used exclusively (bug #10311)
    12  * GUI: prevent crashes under certain conditions on X11 hosts
    13  * 3D: multiscreen fixes (incorrect mouse position, flickers)
    14  * 3D Support: several fixes for the Windows WDDM video driver (multiscreen, seamless)
     29 * 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
    1530 * Snapshots: made live snapshots work again (bug #9255)
    1631 * Teleportation: made it work again (bug #9455)
    17  * VBoxManage: on snapshot take,  --pause is default and --live is for doing live snapshots
    18  * VBoxSVC: don't crash on systems with many VLAN interfaces (Solaris hosts only)
    19  * Network: after the host resumes from suspend, disconnect and reconnect the virtual network cables to force renewing the DHCP leases for the guests. So far only Mac OS X hosts and Windows hosts (bug #10063).
    20  * NAT: on name server changes force a reconnect of the virtual network cable to notify the guest (Mac OS X hosts only)
    21  * Mac OS X installer: keep previously installed Extension Packs on !VirtualBox upgrade
    22  * Linux hosts / guests: Linux 3.11 fixes (bug #12001)
    23  * Solaris hosts: fixed a potential kernel panic caused due to unexpected preemption due to logging.
    24  * Windows hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB3 ports.
    25  * Linux Additions: added PCI device identifier to vboxvideo.ko fixing DRI initialization under certain conditions (bug #11957)
     32 * Storage: implemented AHA-154x compatibility mode in the emulated BusLogic SCSI HBA
     33 * Storage: significantly improved performance of large ATAPI PIO transfers (BeOS, Minix 3 guests affected)
     34 * Storage: added floppy formatting emulation (NB: cannot be used to change existing media geometry)
     35 * Settings: global and per-VM default frontend configuration, useful to select the use of alternative VM frontends
     36 * Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased performance and may trigger crashes
     37 * Settings: the per-VM hwvirtextexcl setting has been replaced by a global hwvirtexclusive property
     38 * Main: new event queue implementation which does not use the host's native event queue for processing !VirtualBox events anymore
     39 * 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
     40 * Main: use the XDG standard configuration folder instead of .!VirtualBox on systems where it is appropriate (bug #5099)
     41 * Main: extension pack framework can now support loading HGCM modules, contributed by Jeff Westphal
     42 * VBoxManage: list more information about hard disk/DVD/floppy media, and support the ''--long'' option to show really all available details
     43 * VBoxManage: added support for optional command line parameters for the automatic Guest Additions update
     44 * VBoxManage: added support for listing active guest sessions, guest processes and/or guest files via ''guestcontrol list <all|sessions|processes|files>''
     45 * VBoxManage: added support for closing active guest sessions via ''guestcontrol session close --session-id <ID> | --session-name <name or pattern> | --all''
     46 * VBoxManage: added support for terminating active guest processes via ''guestcontrol process kill|close|terminate --session-id <ID>| --session-name <name or pattern> <PID> ... <PID n>'' or ''guestcontrol [p[s]]kill --session-id <ID>| --session-name <name or pattern> <PID> ... <PID n>''
     47 * VBoxManage: added support for watching guest sessions via ''guestcontrol watch''
     48 * VBoxManage: added ''modifyvm --triplefaultreset'' to make the VM reset on triple fault instead of triggering a Guru Meditation (see the manual for more information)
     49 * 3D support: several fixes
     50 * 3D support: several fixes for Mac OS X hosts
     51 * OVF: several fixes
     52 * Extpack Installer: make it work if the file is located in a folder with special characters
     53 * Keyboard: fix for reporting key sequences like Ctrl+Alt+Del for the USB keyboard emulation
     54 * Shared Clipboard/X11: support for BMP-format images, contributed by François Revol
     55 * Mac OS X hosts: limited support for Mac OS X 10.9 (Mavericks)
     56 * Mac OS X hosts: use a launchd script instead of the deprecated StartupItem mechanism (bug #8940)
     57 * Windows hosts: don't cause massive DPC latency (only on certain hosts; still needs improving; bug #6242)
     58 * Windows hosts: consider symlinks when retrieving volume information (bug #11962)
     59 * Windows hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB 3.0 ports
     60 * Windows Additions: fixed misbehavior with guest display power management (WDDM driver only; bug #11170)
     61 * Windows Additions: fixed memory leak caused by WTSQuerySessionInformation() on Windows 2000 guests (bug #12072)
     62 * Windows Additions: ability to track guest user idle times through the newly introduced event IGuestUserStateChangedEvent
    2663 * Linux Additions: fixed udev detection in the init script with Linux 3.x kernels
    27 
    28 '''!VirtualBox 4.2.16''' (released 2013-07-04)[[BR]][[BR]]
    29 This is a maintenance release. The following items were fixed and/or added:
    30  * OVF/OVA: don't crash on import if no manifest is used (4.2.14 regression; bug #11895)
    31  * GUI: do not restore the current snapshot if we power-off after a Guru Mediation
    32  * Storage: fixed a crash when hotplugging an empty DVD drive to the VM
    33  * Storage: fixed a crash when a guest read from a DVD drive attached to the SATA controller under certain circumstances
    34  * EFI: don't fail with 64-bit guests on 32-bit hosts (bug #11456)
    35  * Autostart: fixed VM startup on OS X
    36  * Windows hosts: native Windows 8 controls
    37  * Windows hosts: restore native style on Vista 32
    38  * Windows hosts / guests: Windows 8.1 adaptions (bug #11899)
    39  * Mac OS X hosts: after removing !VirtualBox with ''!VirtualBox_Uninstall.tool'', remove it from the ''pkgutil --pkgs'' list as well
    40 
    41 '''!VirtualBox 4.2.14''' (released 2013-06-21)[[BR]][[BR]]
    42 This is a maintenance release. The following items were fixed and/or added:
    43  * VMM: another TLB invalidation fix for non-present pages
    44  * VMM: fixed a performance regression (4.2.8 regression; bug #11674)
    45  * GUI: fixed a crash on shutdown
    46  * GUI: prevent stuck keys under certain conditions on Windows hosts (bugs #2613, #6171)
    47  * VRDP: fixed a rare crash on the guest screen resize
    48  * VRDP: allow to change VRDP parameters (including enabling/disabling the server) if the VM is paused
    49  * USB: fixed passing through devices on Mac OS X host to a VM with 2 or more virtual CPUs (bug #7462)
    50  * USB: fixed hang during isochronous transfer with certain devices (4.1 regression; Windows hosts only; bug #11839)
    51  * USB: properly handle orphaned URBs (bug #11207)
    52  * BIOS: fixed function for returning the PCI interrupt routing table (fixes NetWare 6.x guests)
    53  * 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)
    54  * DMI: allow to configure DmiChassisType (bug #11832)
    55  * Storage: fixed lost writes if iSCSI is used with snapshots and asynchronous I/O (bug #11479)
    56  * Storage: fixed accessing certain VHDX images created by Windows 8 (bug #11502)
    57  * Storage: fixed hang when creating a snapshot using Parallels disk images (bug #9617)
    58  * 3D: seamless + 3D fixes (bug #11723)
    59  * 3D: version 4.2.12 was not able to read saved states of older versions under certain conditions (bug #11718)
    60  * 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)
    61  * Main/Properties: don't forget to make new guest properties persistent after the VM was terminated (bug #11719)
    62  * Main/Display: don't lose seamless regions during screen resize
    63  * Main/OVF: don't crash during import if the client forgot to call Appliance::interpret() (bug #10845)
    64  * Main/OVF: don't create invalid appliances by stripping the file name if the VM name is very long (bug #11814)
    65  * Main/OVF: don't fail if the appliance contains multiple file references (bug #10689)
    66  * Main/Metrics: fixed Solaris file descriptor leak
    67  * Settings: limit depth of snapshot tree to 250 levels, as more will lead to decreased performance and may trigger crashes
    68  * VBoxManage: fixed setting the parent UUID on diff images using ''sethdparentuuid''
    69  * Linux hosts: work around for not crashing as a result of automatic NUMA balancing which was introduced in Linux 3.8 (bug #11610)
    70  * 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
    71  * Windows Additions: fixed problems with partial install in the unattended case
    72  * Windows Additions: fixed display glitch with the Start button in seamless mode for some themes
    73  * Windows Additions: Seamless mode and auto-resize fixes
    74  * Windows Additions: fixed trying to to retrieve new auto-logon credentials if current ones were not processed yet
    75  * Windows Additions installer: added the ''/with_wddm'' switch to select the experimental WDDM driver by default
    76  * Linux Additions: fixed setting own timed out and aborted texts in information label of the lightdm greeter
    77  * 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)
    78  * X11 Additions: reduced the CPU load of VBoxClient in drag'and'drop mode
    79  * OS/2 Additions: made the mouse wheel work (bug #6793)
    80  * Guest Additions: fixed problems copying and pasting between two guests on an X11 host (bug #11792)
    81 
    82 '''!VirtualBox 4.2.12''' (released 2013-04-12)[[BR]][[BR]]
    83 This is a maintenance release. The following items were fixed and/or added:
    84  * VMM: fixed a Guru Meditation on putting Linux guest CPU online if nested paging is disabled
    85  * VMM: invalidate TLB entries even for non-present pages
    86  * GUI: Multi-screen support: fixed a crash on visual-mode change
    87  * GUI: Multi-screen support: disabled guest-screens should now remain disabled on visual-mode change
    88  * GUI: Multi-screen support: handle host/guest screen plugging/unplugging in different visual-modes
    89  * GUI: Multi-screen support: seamless mode: fixed a bug when empty seamless screens were represented by fullscreen windows
    90  * GUI: Multi-screen support: each machine window in multi-screen configuration should have correct menu-bar now (Mac OS X hosts)
    91  * GUI: Multi-screen support: machine window View menu should have correct content in seamless/fullscreen mode now (Mac OS X hosts)
    92  * GUI: VM manager: vertical scroll-bars should be now updated on content/window resize
    93  * GUI: VM settings: fixed crash on machine state-change event
    94  * GUI: don't show warnings about enabled or disabled mouse integration if the VM was restored from a saved state
    95  * Virtio-net: properly announce that the guest has to handle partial TCP checksums (bug #9380)
    96  * Storage: Fixed incorrect alignment of VDI images causing disk size changes when using snapshots (bug #11597)
    97  * Audio: fixed broken ALSA & !PulseAudio on some Linux hosts due to invalid symbol resolution (bug #11615)
    98  * PS/2 keyboard: re-apply keyboard repeat delay and rate after a VM was restored from a saved state (bug #10933)
    99  * BIOS: updated DMI processor information table (type 4): corrected L1 & L2 cache table handles
    100  * Timekeeping: fix several issues which can lead to incorrect time, Solaris guests sporadically showed time going briefly back to Jan 1 1970
    101  * Main/Metrics: disk metrics are collected properly when software RAID, symbolic links or rootfs are used on Linux hosts
    102  * VBoxManage: don't stay paused after a snapshot was created and the VM was running before
    103  * VBoxManage: introduced ''controlvm nicpromisc'' (bug #11423)
    104  * VBoxManage: don't crash on ''controlvm guestmemoryballoon'' if the VM isn't running (bug #11639)
    105  * VBoxHeadless: don't filter guest property events as this would affect all clients (bug #11644)
    106  * Guest control: prevent double CR in the output generated by guest commands and do NLS conversion
    107  * 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)
    108  * Linux Additions: handle fall-back to VESA driver on RedHat-based guests if vboxvideo cannot be loaded
    109  * Linux Additions: RHEL/OEL/CentOS 6.4 compile fix (bug #11586)
    110  * Linux Additions: Debian Linux kernel 3.2.0-4 (3.2.39) compile fix (bug #11634)
    111  * Linux Additions: added auto-logon support for Linux guests using LightDM as the display manager
    112  * Windows Additions: Support for multimonitor. Dynamic enable/disable of secondary virtual monitors. Support for XPDM/WDDM based guests
    113  * X11 Additions: support X.Org Server 1.14 (bug #11609)
    114 
    115 '''!VirtualBox 4.2.10''' (released 2013-03-15)[[BR]][[BR]]
    116 This is a maintenance release. The following items were fixed and/or added:
    117  * GUI: fixed keyboard with XQuartz X server (bug #10664)
    118  * Main/Display: fixed a crash with multi-monitors under certain conditions (Mac OS X hosts only)
    119  * Main/Properties: fixed a crash under certain conditions, for example after wakeup from host hibernate (bug #11444)
    120  * Settings: don't lose the internal network settings if they are not currently active
    121  * Storage: another incompatibility fix for VHD differencing images with Hyper-V (bug #5990)
    122  * VBoxManage: don't read beyond the end of the file specified with ''export --eulafile'' (bug #11528)
    123  * Linux hosts / guests: Linux 3.9-rc0 compile fixes (bug #11529)
    124  * Linux Additions: fixed two warnings in the shared folders guest kernel module (bug #11390)
    125  * Linux Additions: don't crash VBoxService if libdbus is not available (bug #8638)
    126  * Windows Additions: fixed upgrading MultiMedia Redirection (MMR) support
    127 
    128 '''!VirtualBox 4.2.8''' (released 2013-02-27)[[BR]][[BR]]
    129 This is a maintenance release. The following items were fixed and/or added:
    130  * VMM: fixed guest crash with huge amount of guest RAM on VT-x hosts (bug #11306)
    131  * GUI: fixed a layout bug in the Mac OS X clone VM dialog (bug #10982)
    132  * GUI: not all the translation tags were taken into account during the language switch (bug #11342)
    133  * GUI: ''take guest screenshot'' dialog sometimes had no keyboard input available on Windows host
    134  * 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)
    135  * Main/Display: fix for an access violation under certain conditions in multi-monitor configurations (bug #10539)
    136  * 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
    137  * Snapshots: reduce the time for merging snapshots under certain conditions
    138  * Storage: fixed data corruption after resizing a VDI image under certain circumstances (bug #11344)
    139  * Storage: fixed non working online merging of snapshots (4.2.6 regression, bug #11359)
    140  * Storage: fixed crash when connecting to certain QNAP iSCSI targets
    141  * Storage: fixed incompatibility of VHD differencing images with Hyper-V (bug #5990)
    142  * Bridged Networking: fixed TCP pseudo header checksum computation for IPv6 (bug #9380)
    143  * 3D support: fix Battlefield 1942 game crashes (bug #11369)
    144  * Settings: really sanitize the name of VM folders and settings file, the code was disabled before (bug #10549)
    145  * Settings: allow to change VRDE settings for saved VMs
    146  * VBoxManage: don't crash during ''screenshotpng'' if there is no display (bug #11363)
    147  * Linux hosts: work around gcc bug 55940 which might lead to wrong kernel module code if gcc 4.7 is used to compile the 32-bit Linux host kernel (bug #11035)
    148  * Linux hosts: fixed inconsistent lock state and deadlock warnings on module load and VM startup when ''CONFIG_PROVE_LOCKING'' is enabled (bug #11318)
    149  * Linux hosts: made "]" key work again on Japanese keyboards
    150  * Mac OS X hosts: don't crash the kernel during dtrace if the VBox kernel extensions are loaded (10.6 hosts only; bug #11273)
    151  * Solaris / Mac OS X hosts: machine CPU load metrics now report 100% when all cores are fully utilized (used to be a single core)
    152  * Solaris 11 host installer: wait for any services left over from a previous installation to be terminated to avoid confusing SMF.
    153  * Guest Additions: don't block signals for processes executed via guest control
    154  * Guest Additions: fixed a small memory leak in VBoxService (bug #10970)
    155  * Windows Additions: fixed shared folder issue with large reads/writes on 64 bit Windows guests (bug #11115)
    156  * Linux Additions: Linux 3.8 compile fixes (bug #11036)
    157  * X11 Additions: fixed blocked ''SIGALRM'' in 3D desktop sessions (bug #10987)
    158  * X11 Additions: fixed an unresolved reference in vboxvideo_drv for X.org 6.8 guests and before (e.g. RHEL4; 4.2.0 regression)
    159  * X11 Additions: fixed screen automatic resizing for guests with X.org 1.3 or older (4.2.0 regression)
    160 
    161 '''!VirtualBox 4.2.6''' (released 2012-12-19)[[BR]][[BR]]
    162 This is a maintenance release. The following items were fixed and/or added:
    163  * VMM: don't inject stale VT-x events to prevent crashes after VM reset (bug #11256)
    164  * VMM: workaround for buggy BIOSes which enable ''MONITOR'' only for certain CPUs (bugs #9460, #10686)
    165  * GUI: fixed trimming of anti-aliased text in details-view element headers (4.2.0 regression)
    166  * GUI: fixed create-settings-file-alias functionality on Mac hosts (4.2.0 regression)
    167  * GUI: fixed take-guest-screenshot functionality on Windows hosts (bug #11095)
    168  * GUI: several minor fixes, including palette fixes (bug #11191)
    169  * GUI: fixed Windows 2012 OS type (bug #11206)
    170  * GUI: allow to terminate the VM even if VBoxSVC crashed
    171  * API: fixed cancelling of snapshots, previously this could lead to inconsistent VM configs (bug #6877)
    172  * API: fixed identifying disk images by UUID (bug #11209)
    173  * 3D Support: several fixes
    174  * VRDP: fixed occasional crash with external authentication (bug #11156)
    175  * VGA: fix for double scan text modes
    176  * USB: fixed invalid pending request count at the time of service of ''DEVICE POWER'' requests (Windows hosts only; bugs #10021, #11056)
    177  * USB keyboard: Korean keyboard workaround (bug #11150)
    178  * Storage: fixed hang with QCOW images and asynchronous I/O enabled
    179  * Storage: fixed hang with newer VHD images (bug #11279)
    180  * Storage: actually write the non-rotational flag to the VM settings (4.2.0 regression)
    181  * Virtio-net: fixed the problem with network statistics counters in Session Information dialog (GUI)
    182  * Metrics: introduced ''network rate'' and ''disk usage'' metrics
    183  * Metrics: fixed a crash under certain conditions on Solaris hosts
    184  * BIOS: fix for El Torito
    185  * Shared Folders: if the host folder of a shared folder mapping does not exist, keep it active but mark it as invalid to prevent inconsitent saved states (bug #11147)
    186  * VBoxManage: fixed converting disks from raw images
    187  * VBoxManage: show snapshot description in the VM or snapshot information
    188  * VBoxManage: make implicit opening of media consistent in all places dealing with media
    189  * VBoxManage: the iSCSI initiator name was not stored in the settings file when doing ''storageattach'' (bug #11212)
    190  * VBoxManage: ''metrics collect'' now properly handles 'CPU/MHz' and 'Net/*/LinkSpeed' metrics
    191  * VBoxManage: changing the image UUID or parent UUID as part of storageattach works now in all safe cases
    192  * VBoxManage: introduced ''storageattach --medium additions'' as a shortcut to mount the additions image (bug #11165)
    193  * OVF: fixed importing OVF files cerated by recent VMware products (bug #10905)
    194  * Linux hosts / Bridged Networking: fixed the problem with leaking connections in conntrack (bug #11178)
    195  * Linux Additions: added support for ConsoleKit sessions in the vminfo service of VBoxService
    196  * Linux Additions: don't crash during remount under certain conditions (bug #11291)
    197  * Linux/Solaris Additions: fixed guest memory metrics collection
    198  * Solaris hosts: added a dependency to ensure that the user directories are reachable when starting VBox services
    199  * Windows host installer: integrated user-contributed translations, thanks to all contributors!
    200  * Windows Additions: fixed auto-logon installation for Windows 8
    201  * Windows Additions: don't fail if the shared folders host service is not available
    202  * Windows Additions: fixed Guest Additions startup on Windows 2000 guests (bug #11253)
    203  * Windows Additions: auto-resize fixes for Windows 8 guests
    204 
    205 '''!VirtualBox 4.2.4''' (released 2012-10-26)[[BR]][[BR]]
    206 This is a maintenance release. The following items were fixed and/or added:
    207  * GUI: fixed validation warning on global settings / proxy page (4.2.2 regression, bug #11089)
    208  * GUI: fixed crash with multiple guest screens on certain conditions (OS X hosts only)
    209  * VBoxBalloonCtrl: fixed command line argument handling of ballooning module
    210  * VRDP: fixed occasional crash during a video playback in the guest (bug #11082)
    211  * BIOS: fixed broken DMI information (4.2 regression)
    212  * BIOS: workaround for booting from Windows 2000 floppy disks
    213  * EFI: fixed video mode selection loss on VM reboot (#10983)
    214  * Parallel: fixed parallel port printing failure/ paper queue empty error (Windows hosts only)
    215  * NAT: fixed crash on alias-less DNS responses when host-resolver is used
    216  * Storage: fixed hang under rare circumstances
    217 
    218 '''!VirtualBox 4.2.2''' (released 2012-10-18)[[BR]][[BR]]
    219 This is a maintenance release. The following items were fixed and/or added:
    220  * VMM: adapted to changes in Mac OS X 10.8.2 (bug #10965)
    221  * GUI: restored VM item tool-tip functionality (4.2 regression)
    222  * GUI: added group item tool-tip functionality
    223  * GUI: fixed handling of the .ova/.ovf file name association (4.2 regression)
    224  * GUI: it was not possible to change any setting before the first VM was created (bug #10928)
    225  * GUI: disable grouping action if all the selected items are full children list of the same group already
    226  * GUI: added menu for runtime drag-and-drop option change
    227  * GUI: cleanup shared-clipboard menu on visual-mode change
    228  * GUI: make sure VM receives keyboard focus on entering fullscreen-mode on Win host (bug #11051)
    229  * GUI: disable proxy authentication for security reasons
    230  * 3D Support: ''DrawIndexedPrimitiveUP'' implementation fixes for the Windows WDDM video driver (bug #10929)
    231  * Storage: fixed a release assertion in the AHCI emulation when requests where canceled with asynchronous I/O disabled
    232  * Storage: fixed a hang during VM reset under certain circumstances (bug #10898)
    233  * NAT: fixed a crash under rare circumstances (Windows hosts only; bug #10128)
    234  * NAT: automatically use the host resolver if the host name server is set to some unusual loopback value (bug #10864)
    235  * E1000: fixed a !VirtualBox crash during intensive network transfers (4.2 regression; bugs #10936, #10969, #10980)
    236  * ICH9: fixed PCI bridge initialization
    237  * USB mouse: ensure that the last mouse event doesn't get lost if no URBs are available
    238  * BIOS: certain legacy guests (e.g. Windows 95) didn't find the boot device after a warm reboot
    239  * BIOS: don't trash the palette in text modes when setting the border color
    240  * EFI: fixed OS X guest autoboot (4.2 regression)
    241  * VBoxManage: fixed output of ''showvminfo --machinereadable'' (bug #10973)
    242  * VBoxManage: fixed parsing of ''storageattach --discard'' (bug #11023)
    243  * VBoxManage: fixed wrong output of the HPET setting in ''showvminfo'' (bug #11065)
    244  * VBoxManage: fixed closing the guest session after executing a guest process via guest control
    245  * VBoxShell: adaptions to interface name changes
    246  * Guest Additions device: fixed a Guest Additions hang when a machine was reset after a crash
    247  * Linux hosts / guests: Linux 3.7-rc1 fixes
    248  * Linux Additions: support X.Org Server 1.13
    249  * Linux Additions: fixed a hang when the X server was restarted with old guest kernels
    250  * Linux Additions: fixed a VBoxService crash during CPU hot remove (bug #10964)
    251  * Windows Additions: fixed automatic screen resize issue for NT4 guests
    252  * OS/2 Additions: fixed shutdown hang
    253  * OS/2 Additions: fixed mouse driver panic
    254  * Solaris hosts: fixed autostart service going into maintenance mode after all VMs started
    255  * Solaris hosts: fixed linking the host driver with the dtrace module
    256 
    257 '''!VirtualBox 4.2.0''' (released 2012-09-13)[[BR]][[BR]]
    258 This version is a major update. The following major new features were added:
    259  * Improved Windows 8 support, in particular many 3D-related fixes
    260  * GUI: VM groups (bug #288)
    261  * GUI: expert mode for wizards
    262  * GUI: allow to alter some settings during runtime
    263  * Support for up to 36 network cards, in combination with an ICH9 chipset configuration (bug #8805)
    264  * Resource control: added support for limiting network IO bandwidth; see the manual for more information (bug #3653)
    265  * Added possibility to start VMs during system boot on Linux, OS X and Solaris; see the manual for more information (bug #950)
    266  * 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)
    267  * Added support for parallel port passthrough on Windows hosts
    268  * Enhanced API for controlling the guest; please see the SDK reference and API documentation for more information
    269 In addition, the following items were fixed and/or added:
    270  * Mac OS X hosts: sign application and installer to avoid warnings on Mountain Lion
    271  * 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)
    272  * VMM: fixed a potential host crash under a high guest memory pressure (seen with Windows 8 guests)
    273  * VMM: improved VM context switch performance for Intel CPUs using nested paging
    274  * VMM: added support for ''FlushByASID'' features of AMD CPUs (Bulldozer and newer)
    275  * VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
    276  * VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
    277  * VMM: support recent VIA CPUs (bug #10005)
    278  * VMM: fixed handling of task gates if VT-x/AMD-V is disabled
    279  * VMM: page fusion fixes
    280  * GUI: network operations manager
    281  * GUI: allow taking screenshots of the current VM window content (bug #5561)
    282  * GUI: allow automatically sorting of the VM list
    283  * GUI: allow starting of headless VMs from the GUI
    284  * GUI: allow reset, shutdown and power off from the Manager window
    285  * GUI: allow to globally limit the maximum screen resolution for guests
    286  * GUI: show the full medium part on hovering the list of recently used ISO images
    287  * GUI: do not create additional folders when a new machine has a separator character in its name (bug #6541)
    288  * GUI: don't crash on terminate if the settings dialog is still open (bug #9973)
    289  * GUI: consider scaled DPI values when display fonts on Windows hosts (bug #9864)
    290  * 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
    291  * Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs #9364, #9604, #10491)
    292  * Clipboard: disable the clipboard by default for new VMs (see the manual for more information). It can be enabled at any time using the VM menu.
    293  * Settings: sanitize the name of VM folders and settings file (bug #10549)
    294  * Settings: allow to store the iSCSI initiator secret encrypted
    295  * NAT: improvements for the built-in TFTP server (bugs #7385, #10286)
    296  * NAT: fixed memory leak when disabling the NAT engine (bug #10801)
    297  * E1000: 802.1q VLAN support (bug #10429)
    298  * Storage: implemented burning of audio CDs in passthrough mode
    299  * Storage: fixed audio CD passthrough for certain media players
    300  * Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
    301  * Storage: added support for QED images
    302  * Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
    303  * Storage: added readonly support for VHDX images
    304  * USB: don't crash if a USB device is plugged or unplugged when saving or loading the VM state (SMP guests only)
    305  * Solaris additions: added support for X.org Server 1.11 and 1.12
    306  * Solaris additions: switched to using an in-kernel mouse driver
    307  * Windows hosts: no need to recreate host-only adapters after a !VirtualBox update
    308  * Windows hosts: updated toolchain; make the source code compatible to VC 2010 and enable some security-related compiler options
    309  * Windows Additions: fixed memory leak in VBoxTray (bug #10808)

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