VirtualBox 6.0.6 for PC Windows

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

Virtualization core: nested AMD virtualization fixes
User interface: fixed copying directories in file manager
User interface: fixed operation progress in file manager when copying content
User interface: fixed operation progress when deleting snapshots
User interface: fixed unattended installation of recent Ubuntu guests
User interface: various additional improvements
Storage: fixed loading saved states for LsiLogic devices (6.0.0 regression; bug #18263)
Storage: fixed fixed reading certain QCOW2 images and support version 3 of the format readonly
Storage: Improved IDE PCI emulation to allow NetWare IDE drivers to use bus-mastering
Graphics: Improved VMSVGA support to work with old X servers which previously showed only a badly scrambled screen
Graphics: fixed invisible mouse cursor with VMSVGA emulation and without mouse integration (bug #18239)
Graphics: make EFI work with VMSVGA emulation (bug #18282)
Graphics: remember last guest screen size VMSVGA emulation
Graphics: fix RDP to guests using VMSVGA emulation
Graphics: various additional VMSVGA emulation fixes
Audio: implemented audio device enumeration for the DirectSound backend
Network: fixed unwanted padding bytes in Windows host adaptor network packets (bug #18202 and bug #18355)
Serial: fixed possible crash on Windows when using a host device (6.0.0 regression; bug #18319)
Serial: fixed loopback handling in the emulation causing garbage to be sent during boot with Linux guests (6.0.0 regression; bug #18319)
Shared folders: fixed duplicate folders after restoring a saved state (bug #18373 and other)
Drag and drop: fixed copying files from guest host (bug #18305)
Recording: fixed modifying settings via VBoxManage (bug #18494)
VBoxManage: crash fix (bug #18341)
Fixed hangs during failed virtual machine start-up
Windows host: fix unwanted wake-ups from standby (bug #18549)
Windows host: disallow Pause as a host key (bug #18482)
Linux host and guest: support Linux 5.0 and 5.1, thank you Valdis Kletnieks (see also bug #18515)
Linux host: support kernel 4.4.169 (bug #18315)
Linux host: fix logging when building Linux kernel modules (bug #18226)
Linux host: clarified building Linux host drivers with secure boot (bug #18312)
FreeBSD host: compilation fixes
Installers: reduced size of packages
Web services: work with Java 11
LibreSSL compilation fix, thank you Stefan Strogin
Windows guests: fixed running applications which use complex display topologies with WDDM driver, fixed Skype for Business hangs (bug #17092)
Windows guests: fixed an occasional guest crash with WDDM driver and VBoxSVGA adapter (bug #18369)
Windows guests: shared folder file creation detection issue (bug #9276)
Linux guests: shared folder performance and reliability improvements and missing features (bugs #17360, #819)
OS/2 guests: shared folder fixes (bug #18376 and bug #18379)

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

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

This is a maintenance release. The following items were fixed and/or added:
User interface: fixed creation of desktop shortcuts for starting virtual machines.
User interface: allow the first run window to selecting host drives.
User interface: fixed attaching empty host optical drives.
User interface: implemented a new virtual optical disk creation window.
USB: modified Linux backends to reset USB devices (previously, most guest attempts to reset USB devices were ignored).
PCnet: fixed a regression which caused some PCnet PCI guest drivers to not detect the emulated hardware.
Linux hosts: fixed conflict between Debian and Oracle build desktop files.
Linux and MacOS hosts: VirtualBoxVM command not accessible.
Windows guests: multiple monitor fixes with VBoxSVGA graphics.
Windows guests: black screen with VBoxSVGA graphics when 3D is disabled.
Linux guests: fixed building drivers on SLES 12.4
Linux guests: fixed building shared folder driver with older kernels.
OS/2 shared folders: fixed write regression introduced in 6.0.0 GA.

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

Implemented support for exporting a virtual machine to Oracle Cloud Infrastructure
User interface: greatly improved HiDPI and scaling support, including better detection and per-machine configuration
Major rework of user interface with simpler and more powerful application and virtual machine set-up
User interface: a new file manager enabling user to control the guest file system and copy files between host and guest.
Graphics: major update of 3D graphics support for Windows guests, and VMSVGA 3D graphics device emulation on Linux and Solaris guests
Added support for surround speaker setups (as used by Windows 10 Build 1809)
Added utility vboximg-mount on Apple hosts to access the content of guest disks on the host
Added support for using Hyper-V as the fallback execution core on Windows host, to avoid inability to run VMs at the price of reduced performance

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

Execution core: fixed single-stepping in certain circumstances (bug #17316)
User interface: video and audio recording can now be separately enabled
Audio/Video recording fixes and improvements
Audio: better support for attaching and detaching remote desktop connections
Serial port emulation fixes
Serial ports: allow changing the serial port attachment while a machine is running (bug #6115)
Networking: Added a workaround for older guests which do not enable bus mastering for the virtio PCI device
Networking: fixed wrong RCODE from DNS AAAA query with --natdnshostresolver1 (bug #18171)
iSCSI: In cases where there is no ambiguity, the LUN of an iSCSI target is automatically determined, for targets with non-zero LUNs
Transparently resize disk images when merging if possible
VBoxManage: support for DHCP options
Fixed VNC/RDP (bug 18153)
Guest Control: various new interfaces and features (see SDK documentation)
Linux hosts: support Linux 4.20 (thank you Larry Finger)
Solaris: installer fixes
Shared folders: performance improvements
Guest Additions: improved shared folder auto-mounting
Windows Guest Additions: fix incorrect tablet co-ordinate handling with recent Windows 10 builds
Linux Additions: fix for building vboxvideo on EL 7.6 standard kernel, contributed by Robert Conde (bug #18093)
Linux guests: support Linux 4.20 (thank you Larry Finger)
Linux guests: support VMSVGA in the Linux and X11 Additions
MacOS Guest Additions: initial support
OS/2 Guest Additions: initial shared folder support
BIOS fixes
ACPI: Up to four custom ACPI tables can now be configured for a VM

Audio:
Fixed a regression in the Core Audio backend causing a hang when returning from host sleep when processing input buffers.
Fixed a potential crash in the HDA emulation if a stream has no valid mixer sink attached -- thanks to Rink Springer (rink@…)

Windows hosts:
Fixed an incompatibility with recent versions of Windows 10.
Fixed a number of brigded networking driver crashes.

Linux Additions:
Disable 3D for recent guests using Wayland.
Fix for rebuilding kernel modules for new kernels on RPM guests.
further fixes for Linux 4.19
Fixed errors rebuilding initrd files with dracut on EL 6.
Fixed 5.2.20 regression: guests not remembering the screen size after shutdown and restart.

Audio:
Fixed a regression in the Core Audio backend causing a hang when returning from host sleep when processing input buffers.
Fixed a potential crash in the HDA emulation if a stream has no valid mixer sink attached -- thanks to Rink Springer (rink@…)

Windows hosts:
Fixed an incompatibility with recent versions of Windows 10.
Fixed a number of brigded networking driver crashes.

Linux Additions:
Disable 3D for recent guests using Wayland.
Fix for rebuilding kernel modules for new kernels on RPM guests.
further fixes for Linux 4.19
Fixed errors rebuilding initrd files with dracut on EL 6.
Fixed 5.2.20 regression: guests not remembering the screen size after shutdown and restart.

Audio:
Fixed a regression in the Core Audio backend causing a hang when returning from host sleep when processing input buffers.
Fixed a potential crash in the HDA emulation if a stream has no valid mixer sink attached -- thanks to Rink Springer (rink@…)

Windows hosts:
Fixed an incompatibility with recent versions of Windows 10.
Fixed a number of brigded networking driver crashes.

Linux Additions:
Disable 3D for recent guests using Wayland.
Fix for rebuilding kernel modules for new kernels on RPM guests.
further fixes for Linux 4.19
Fixed errors rebuilding initrd files with dracut on EL 6.
Fixed 5.2.20 regression: guests not remembering the screen size after shutdown and restart.

This is a maintenance release. The following items were fixed and/or added:
VMM: fixed task switches triggered by INTn instruction.
Storage: fixed connecting to certain iSCSI targets.
Storage: fixed handling of flush requests when configured to be ignored when the host I/O cache is used.
Drag and drop: implemented support for UNC paths.
Drag and drop: fixed resuming operation when restoring from a saved state.
Drag and drop: fixed copying files with long file names (> 248 characters) from guests to Windows hosts.
Drag and drop: fixed handling files with Unicode names on Windows guests.
Drag and drop: fixed copying empty (0-byte) files to / from guests.
Drag and drop: fixed copying over files from hosts to Linux guests.
Networking: restore connectivity for guests bridged to host adapters that were unavailable temporarily.
Guest Control: fixed hang when using --wait-stdout and/or --wait-stderr. Needs updating Guest Additions.
Video recording: fixed starting video recording on VM power up.
Linux Additions: various build fixes for kernel modules on recent distributions, and made sure modules end up in initramfs files.
Linux Additions: build fixes for 4.19, thank you Larry Finger.
Linux Additions: various small fixes for video driver.

The following items were fixed and/or added:
VMM: See user manual.
VMM: fix loading with recent binutils and self-built versions of VirtualBox.
NAT: fix --nataliasmode sameports which is a valid setting.
VRDP: fixed VM process termination on RDP client disconnect if 3D is enabled for the virtual machine.

OVF: case insensitive comparison of manifest attribute values, to improve compatibility.
Linux: build for openSUSE 15.0.
Linux: various build fixes for distribution builds, thank you Gianfranco Costamagna.

The following items were fixed and/or added:
User interface: fixed a segmentation fault when accessing the interface through VNC.
User interface: X11: handle repeating keys on the host system correctly.
VMM: Fixed emulation of the undocumented SALC instruction
VMM: Fixed emulation of so-called "huge unreal mode" ; this in practice only affected Intel CPUs with VT-x without unrestricted execution.
Keyboard: The PS/2 keyboard emulation has been corrected to not queue partial scan code sequences ; this problem was likely only visible on Linux hosts due to losing the fix.
Storage: Fixed CUE file support to correct REM keyword parsing.
USB: Fixed a problem where the emulated xHCI device under very rare circumstances failed to report an empty isochronous transfer ring error, causing the transfers on the corresponding endpoint to stop.
Audio: fixed Linux kernel log flooding.
Apple hosts: make kernel driver load with Mac OS Mojave pre-release.
Linux guests: made vboxvideo driver build with kernel 4.17 and with pre-3.14 and EL 7.1 kernels.

The following items were fixed and/or added:
Serial: fixed possible data corruption when sending data under certain circumstances.
Video recording: fixed starting / stopping recording under certain circumstances.
Linux hosts: support Linux 4.17 changes.
Linux guests: support Linux 4.16 and EL 7.5 kernels.
Linux guests: 3D fixes for recent guests.