path: root/doc/manual/user_ChangeLogImpl.xml

<?xml version="1.0" encoding="UTF-8"?>
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<!--
Release change log structure

Each release has a matching log of changes which were made for that and
earlier releases. Earlier releases means anything with a lower number (e.g.
5.0.18 is lower than 5.1.2) which was released before this one. The log is
kept in the file doc/manual/user_ChangeLogImpl.xml. Anything worth mentioning,
particularly new features and fixed bugs, with a trac bug number if possible,
should be added to the top of the change log (that is, the section for the
upcoming release) for the branch in which it first appears - stable or
development - before the next release. If you back-port it to older branches
please add an entry there too. When a new major release is made, change log
sections for earlier releases are merged in.

Change log sections are split into two groups: major new features (normally
only for dot zero releases) and fixes. In addition, the entries in each group
are ordered as follows:

    VMM-related entries (most important)
    GUI-related entries (most visible for users)
    Device-related entries
    VBoxManage/API/Main-related entries
    Host-related entries
    Guest-related entries
    BIOS/EFI/ACPI-related entries

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Rules for adding a changelog entry to make them look more uniform:

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    2. Use the past form of something, e.g. "Fixed ..." vs. "Fix ..."
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    4. Use TWO (2) spaces for indentation
    5. Use line breaks when hitting column 80

    Full example:

        <listitem>
          <para>Foo: Fixed something really important, really really long line
            with lots more text not fitting into 80 columns</para>
        </listitem>
-->
<chapter>

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  <sect1>

    <title>Version 7.0.16 (2024-04-16)</title>

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

    <itemizedlist>

      <listitem>
       <para>VMM: Fixed a guru meditation executing nested-guests using the KVM hypervisor in the
         guest on Intel hosts (bug #21805)</para>
      </listitem>

      <listitem>
       <para>VMM: Fixed Linux VM crash on some recent AMD models</para>
      </listitem>

      <listitem>
       <para>USB: Fixed issue when EHCI controller was mishandling short
         packets (bug #20726)</para>
      </listitem>

      <listitem>
       <para>Audio: Introduced general improvements</para>
      </listitem>

      <listitem>
       <para>VBoxManage and vboximg-mount: Updated usage information and
         documentation (bugs #21895, #21992 and #21993)</para>
      </listitem>

      <listitem>
       <para>Guest Control: Fixed starting Windows guest processes in the correct Windows session
         (7.0 regression)</para>
      </listitem>

      <listitem>
       <para>Linux Host: Fixed issue when VBox.sh was deleting wrong VBoxSVC IPC socket
         when VM was started using sudo (bug #20928)</para>
      </listitem>

      <listitem>
       <para>Linux Host: Fixed kernel modules build failure when using GCC 13.2</para>
      </listitem>

      <listitem>
       <para>macOS Host: Fixed issue when App Nap was affecting VM performance (bug #18678)</para>
      </listitem>

      <listitem>
       <para>Linux Host and Guest: Added fixes related to UBSAN warnings discovered on
         recent Linux distributions (bug #21877)</para>
      </listitem>

      <listitem>
       <para>Linux Host and Guest: Added possibility to prevent kernel module
         from automatic loading during system boot by adding mod_name.disabled=1 into
         kernel command line</para>
      </listitem>

      <listitem>
       <para>Linux Host and Guest: Added initial support for kernel 6.9 (bug #22033)</para>
      </listitem>

      <listitem>
       <para>Linux Host and Guest: Fixed mk_pte warning introduced in kernel 6.6 (bug #21898)</para>
      </listitem>

      <listitem>
       <para>Linux Guest Additions: Added initial support for kernel 6.8</para>
      </listitem>

      <listitem>
       <para>Windows Guest Additions: Introduced general improvements in graphics area</para>
      </listitem>

    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.14 (2024-01-16)</title>

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

    <itemizedlist>

      <listitem>
        <para>Audio: Added more fixes for switching host audio devices on Windows
          hosts using the WAS backend</para>
      </listitem>

      <listitem>
        <para>3D: Added general improvements</para>
      </listitem>

      <listitem>
        <para>OCI: Fixed wrong guest RAM unit usage in VirtualSystemDescription,
          memory is provided in bytes, "Byte" is the base unit</para>
      </listitem>

      <listitem>
        <para>Main: OVF Import/Export: Added support for importing and exporting
          VMs containing NVMe storage controllers (bug #19320)</para>
      </listitem>

      <listitem>
        <para>Main: OVF Import/Export: Added support for exporting a VM which
          contains a medium inserted into a virtual CD/DVD drive which is attached
          to a Virtio-SCSI controller</para>
      </listitem>

      <listitem>
        <para>Devices: Fixed a problem where Windows guests "forget" in-progress
          touch events when the user holds down a finger without moving it for
          a period of time</para>
      </listitem>

      <listitem>
        <para>macOS Host USB: Added support for newer storage devices</para>
      </listitem>

      <listitem>
        <para>macOS Host: Fixed memory Leak in the VBoxIntNetSwitch process when VM
          was configured to use 'Internal Networking' (bug #21752)</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: Added initial support for RHEL 9.4 kernel</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Fixed kernel panic on RHEL 8.9 kernel
          caused by vboxvideo (bugs #10381 and #21911)</para>
      </listitem>

      <listitem>
        <para>Solaris Guest Additions: Added support for the Additions to be installed
          into an alternate root path ('pkgadd -R')</para>
      </listitem>

      <listitem>
        <para>Solaris Guest Additions: Removed requirement to reboot VM after uninstalling GAs</para>
      </listitem>

      <listitem>
        <para>RDP: Fix possible crash when connecting with the Apple Silicon
          variant of the Microsoft Remote Desktop application (bug #21820)</para>
      </listitem>

      <listitem>
        <para>BIOS: Fixed handle number used for DMI OEM table (bug #19781)</para>
      </listitem>

    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.12 (2023-10-17)</title>

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

    <itemizedlist>

      <listitem>
        <para>VMM: Fixed using a debugger inside the guest under certain
          circumstances (bugs #21413 and #21546)</para>
      </listitem>

      <listitem>
       <para>VMM: Fixed detection of VT-x being used by other hypervisors (bug #21867)</para>
      </listitem>

      <listitem>
        <para>VMM: Introduced additional improvements in Split Lock Detection feature of
          recent Intel CPUs on Linux hosts (bug #20180)</para>
      </listitem>

      <listitem>
        <para>GUI: Fixed issue when the nested hardware virtualization setting
          was not displayed in the VM details panel (bug #21707)</para>
      </listitem>

      <listitem>
        <para>GUI: Introduced NLS update for Croatian, Indonesian, Italian,
          Japanese, Korean, Dutch and Turkish languages as well as added
          general look-and-feel improvements</para>
      </listitem>

      <listitem>
        <para>Devices: Fixed black screen in Windows guests with multiple guest
          screens when 3D is disabled (7.0.10 regression)</para>
      </listitem>

      <listitem>
        <para>Devices: Fixed PCI device identifiers for the VirtIO network interface
          (bug #21516)</para>
      </listitem>

      <listitem>
        <para>Devices: Fixed VLAN support for the VirtIO network interface
          (bug #21778)</para>
      </listitem>

      <listitem>
        <para>Devices: Fixed loading saved states when a TPM is configured
          (7.0.10 regression, bug #21773)</para>
      </listitem>

      <listitem>
        <para>Networking: Fixed memory leaks in the VBoxIntNetSwitch process
          on macOS (bug #21752)</para>
      </listitem>

      <listitem>
        <para>Networking: Fixed TCP connections with IP addresses ending on .2
          when the NAT network attachment is used (bug #21513)</para>
      </listitem>

      <listitem>
        <para>Audio: Fixed switching host audio devices on Windows hosts
          using the WAS backend (bugs #20431, #21517, #20630 and #20723)</para>
      </listitem>

      <listitem>
        <para>VRDP: Added general improvements</para>
      </listitem>

      <listitem>
        <para>VBoxManage: Added improvements for "list usbfilters" command</para>
      </listitem>

      <listitem>
        <para>Unattended: Added kick start file support for Oracle Linux 8 and Oracle Linux 9</para>
      </listitem>

      <listitem>
        <para>Main: Added more Linux OS subtypes</para>
      </listitem>

      <listitem>
        <para>Host Services: Fixed Guest Properties service crash under rare
          circumstance</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: Fixed few "field-spanning write" kernel
          warnings (bugs #21410 and #21862)</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added more fixes for RHEL 8.9 and 9.3 kernel</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added more fixes for kernel 6.4</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added initial support for OpenSUSE 15.5 kernel</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added initial support for kernels 6.5 and 6.6</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added version reporting for "rcvboxadd status-kernel"
          and "rcvboxadd status-user" commands</para>
      </listitem>

      <listitem>
        <para>BIOS: Restored support for ISA SCSI HBAs in the BIOS (bug #21736)</para>
      </listitem>
    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.10 (2023-07-18)</title>

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

    <itemizedlist>

      <listitem>
       <para>OCI: Introduced general improvements</para>
      </listitem>

      <listitem>
       <para>VMM: Fixed sluggish performance starting with macOS Ventura 13.3 (bug #21563, bug#21596)</para>
      </listitem>

      <listitem>
       <para>VMM: Fixed a bug while walking page tables while executing nested VMs causing flooding of
         the release log as a consequence (Intel hosts only, bug #21551)</para>
      </listitem>

      <listitem>
       <para>GUI: Added general improvements</para>
      </listitem>

      <listitem>
       <para>TPM: Fixed a crash when a VM has a TPM version 1.2 configured (bug #21622)</para>
      </listitem>

      <listitem>
        <para>3D: Initial support for OpenGL 4.1</para>
      </listitem>

      <listitem>
        <para>3D: Fixed various graphics issues with Windows 11 guests
          (bugs #21136, #21515)</para>
      </listitem>

      <listitem>
        <para>Guest Control/VBoxManage: Fixed parameter "--ignore-orphaned-processes"</para>
      </listitem>

      <listitem>
        <para>Guest Control/VBoxManage: One can now explicitly specify an executable
          argument 0 via "--arg0" with the "run" and "start" commands. See VBoxManage
          help for examples</para>
      </listitem>

      <listitem>
       <para>Audio: Also use the PulseAudio backend when pipewire-pulse is running
         instead of falling back to ALSA (bug #21575)</para>
      </listitem>

      <listitem>
        <para>NAT: Adjusted UDP proxy timeout from 18-21 to 21-24 range to respect
          intended 20 second timeout (bug #21560)</para>
      </listitem>

      <listitem>
        <para>Linux Host: Added initial support for Indirect Branch Tracking (bug #21435)</para>
      </listitem>

      <listitem>
        <para>Linux Host: Added initial support for kernel 6.5 (NOTE: Guest Additions
          do not support kernel 6.5 yet)</para>
      </listitem>

      <listitem>
        <para>Solaris Host: Introduced general improvements in the installer area</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: Improved condition check when kernel modules need
          to be signed</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: Added initial support for RHEL 8.8 (bug #21692),
          8.9 (bug #21690) and 9.3 (bugs #21598 and #21671) kernels</para>
      </listitem>

      <listitem>
        <para>MacOS Host and Guest: Introduced general improvements in the installer area</para>
      </listitem>

      <listitem>
        <para>Windows Host and Guest: Introduced ECDSA support (bug #21621)</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Fixed issue when kernel modules were rebuilt on each boot
          when guest system has no X11 installed</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added initial support for kernel 6.4</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Fixed issue when vboxvideo module reloading
          caused kernel panic in some guests (bug #21740)</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Introduced general improvements in the
          installer area</para>
      </listitem>

      <listitem>
        <para>Windows Guest Additions: Introduced general improvements in graphics
          drivers area</para>
      </listitem>

    </itemizedlist>

  </sect1>

  <sect1>

    <title>Version 7.0.8 (2023-04-18)</title>

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

    <itemizedlist>

      <listitem>
       <para>VMM: Fixed EFLAGS.TF handling for CPUID instructions when Hyper-V is used (bug #17961)</para>
      </listitem>

      <listitem>
       <para>VMM: Fixed MONITOR/MWAIT crash with Solaris guests when Hyper-V is used on Windows 11</para>
      </listitem>

      <listitem>
       <para>VMM: Introduced general improvements in nested visualization area</para>
      </listitem>

      <listitem>
       <para>VMM: Fixed triple fault related guru meditations for UEFI guests starting with
         macOS Ventura 13.3 (bug #21563)</para>
      </listitem>

      <listitem>
       <para>GUI: Brought back Restore current snapshot checkbox of Close VM dialog (bugs #21189, #21491)</para>
      </listitem>

      <listitem>
       <para>GUI: Fixes and validation for VM settings USB filters editor, filter port value is now properly
         saved/restored</para>
      </listitem>

      <listitem>
       <para>GUI: Fixes for VM name and OS type embedded editors of Details pane</para>
      </listitem>

      <listitem>
       <para>GUI: Cloud related wizards should now propose enabled profiles before disabled</para>
      </listitem>

      <listitem>
       <para>Oracle VM VirtualBox Extension Pack: Fixed shipping the cryptographic support module for full VM encryption</para>
      </listitem>

      <listitem>
       <para>E1000: Fixed possible guru meditation when changing network attachments (bug #21488)</para>
      </listitem>

      <listitem>
       <para>virtio-net: Follow up fixes for FreeBSD 12.3 and pfSense 2.6.0 (bug #21201)</para>
      </listitem>

      <listitem>
        <para>3D: Fixed various graphics issues with Windows 7 guests
          (bugs #21129, #21196, #21208, #21521)</para>
      </listitem>

      <listitem>
        <para>Main/UefiVariableStore: Added API to add signatures to the MOK
          list (Machine Owner Key)</para>
      </listitem>

      <listitem>
        <para>VBoxManage: Introduced modifynvram enrollmok sub-command to enroll Machine
          Owner Key into NVRAM, so Linux guest kernel can pick it up in order to verify
          signature of modules signed with this key</para>
      </listitem>

      <listitem>
        <para>Guest Control/Main: Fixed deleting files via built-in toolbox</para>
      </listitem>

      <listitem>
       <para>Linux host: Added possibility to bypass kernel modules signature verification
         once VBOX_BYPASS_MODULES_SIGNATURE_CHECK="1" is specified in /etc/vbox/vbox.cfg,
         useful in case if Linux distribution does not provide necessary tools to verify
         kernel module signature</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions and host Installer: Improved detection if system is
          running systemd as the init process</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions and host drivers: Introduce initial support for kernel 6.3</para>
      </listitem>

      <listitem>
       <para>Linux Guest Additions: Added possibility to bypass kernel modules signature
         verification once VBOX_BYPASS_MODULES_SIGNATURE_CHECK="1" is specified
         in /etc/virtualbox-guest-additions.conf, useful in case if Linux distribution
         does not provide necessary tools to verify kernel module signature</para>
      </listitem>

      <listitem>
       <para>Linux Guest Additions: Added experimental support for kernel modules and
         user services reloading in the end of installation process, thus guest system
         reboot after Guest Additions (7.0.8 and newer) upgrade is no longer required
         in general case</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Fixed vboxvideo build issue
          with RHEL 8.7, 9.1 and 9.2 kernels (bugs #21446 and #21450)</para>
      </listitem>

    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.6 (2023-01-17)</title>

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

    <itemizedlist>

      <listitem>
        <para>VMM: Fixed guru running the FreeBSD loader on older Intel CPUs
          without unrestricted guest support (bug #21332)</para>
      </listitem>

      <listitem>
        <para>GUI: Fixed virtual machines grouping when VM was created or
          modified in command line (bugs #11500, #20933)</para>
      </listitem>

      <listitem>
        <para>GUI: Introduced generic changes in settings dialogs</para>
      </listitem>

      <listitem>
        <para>VirtioNet: Fixed broken network after loading saved state
          (bug #21172)</para>
      </listitem>

      <listitem>
        <para>Storage: Added support for increasing the size of the following
          VMDK image variants: monolithicFlat, monolithicSparse, twoGbMaxExtentSparse,
          twoGbMaxExtentFlat</para>
      </listitem>

      <listitem>
        <para>VBoxManage: Added missing --directory switch for guestcontrol mktemp command</para>
      </listitem>

      <listitem>
        <para>Mouse Integration: Guest was provided with extended host mouse state (bug #21139)</para>
      </listitem>

      <listitem>
        <para>DnD: Introduced generic improvements</para>
      </listitem>

      <listitem>
        <para>Guest Control: Fixed handling creation mode for temporary directories
          (bug #21394)</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: Added initial support for building UEK7 kernel on
          Oracle Linux 8</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: Added initial support for RHEL 9.1 kernel</para>
      </listitem>

      <listitem>
        <para>Windows Host: Fixed support for VM autostart (bug#21349)</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Added initial support for kernel 6.2 for vboxvideo</para>
      </listitem>

      <listitem>
        <para>Audio: The "--audio" option in VBoxManage is now marked as
          deprecated; please use "--audio-driver" and "--audio-enabled"
          instead. This will allow more flexibility when changing the driver
          and/or controlling the audio functionality</para>
      </listitem>

    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.4 (2022-11-18)</title>

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

    <itemizedlist>

      <listitem>
        <para>VMM: Added nested paging support for nested virtualization (Intel hosts only)</para>
      </listitem>

      <listitem>
        <para>VMM: Fixed rare guru meditations with certain guests on macOS 10.15 (Catalina) (bug #21237)</para>
      </listitem>

      <listitem>
        <para>VMM: Fixed possible VM process crash on Windows hosts when Hyper-V is used with certain guests (bug #21174)</para>
      </listitem>

      <listitem>
        <para>VMM: Fixed Windows XP guest hang or BSOD on AMD CPUs under certain circumstances (bug #21256)</para>
      </listitem>

      <listitem>
        <para>GUI: Various bugfixes for the Guest Control file manager</para>
      </listitem>

      <listitem>
        <para>GUI: Added more informative file operations in the Guest Control file manager</para>
      </listitem>

      <listitem>
        <para>GUI: Added an option to the global settings (the display page) to resize user interface font</para>
      </listitem>

      <listitem>
        <para>GUI: Fixed a regression in new vm wizard. Selected virtual disks are no longer deleted when the wizard
          is cancelled (bug #21244)</para>
      </listitem>

      <listitem>
        <para>GUI: Added a new menu item to the devices menu to optionally upgrade the guest additions</para>
      </listitem>

      <listitem>
        <para>VirtioSCSI: Fixed recognition of the virtio SCSI controller by the EFI firmware (bug #21200)</para>
      </listitem>

      <listitem>
        <para>VirtioSCSI: Fixed hang when shutting down the VM if the virtio SCSI controller is used (bug #21144)</para>
      </listitem>

      <listitem>
        <para>virtio-net: Workaround a bug in the virtio-net driver included in FreeBSD version up to 12.3
          which renders the device non functional (bug #21201)</para>
      </listitem>

      <listitem>
        <para>Storage: Fixed I/O errors with the VirtioSCSI controller when the host I/O cache is enabled (bug #19717)</para>
      </listitem>

      <listitem>
        <para>VBoxManage: Fixed regression when 'createmedium disk --variant RawDisk' command resulted
          in invalid .vmdk file (bug #21125)</para>
      </listitem>

      <listitem>
        <para>Main: Restored input pointing device behavior in multi-monitor
          VM configuration (bug #21137)</para>
      </listitem>

      <listitem>
        <para>Main: Fixed progress indication during automatic Linux
          Guest Additions installation</para>
      </listitem>

      <listitem>
        <para>Guest Control: Fixed path handling issues (bug #21095)</para>
      </listitem>

      <listitem>
        <para>3D: Fixed VM process crash on macOS with 3D enabled (bug #21232)</para>
      </listitem>

      <listitem>
        <para>Linux Host and Guest: General improvements in startup scripts</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Introduced initial support for
          RHEL 8.7 and 9.2 kernels (bug #21272, #21258)</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Introduced initial support for SLES 15.4 kernels</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Fixed kernel modules rebuild behavior on
          system shutdown</para>
      </listitem>

    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.2 (2022-10-20)</title>

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

    <itemizedlist>

      <listitem>
        <para>Known issue: VMs having more than one vCPU configured will not work properly on macOS
          Catalina due to an unknown memory corruption issue. Either lower the number of vCPUs to 1
          or upgrade to BigSur or later where the issue does not occur</para>
      </listitem>

      <listitem>
        <para>Main: Fixed issue when VBoxSVC could become unresponsive if Extension Pack
          was not installed (bug #21167)</para>
      </listitem>

      <listitem>
        <para>macOS hosts: Added workaround for a bug in the Hypervisor framework on Catalina causing
          VERR_NEM_MAP_PAGES_FAILED errors when starting a VM. (bug #21128)</para>
      </listitem>

      <listitem>
        <para>macOS hosts: Re-introduced support for internal networking, this is considered a bit
          experimental still</para>
      </listitem>

      <listitem>
        <para>macOS hosts: Fixed VM crash when the guest tries to access a microphone or webcam</para>
      </listitem>

      <listitem>
        <para>Windows host: Shared Clipboard: Fixed issue when only 4Kb of host
          clipboard buffer was accessible to guest (bug #21149)</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Introduced initial support for kernel 6.1</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Fixed issue when VBoxClient seamless service
          caused a crash of some X11 applications (bug #21132)</para>
      </listitem>

      <listitem>
        <para>Windows hosts: GUI: Fixed missing Qt libraries for vista style and sql driver (bug #21155)</para>
      </listitem>

      <listitem>
        <para>GUI: Fixed a glitch in the log viewer which was causing wrong log file to be saved (bug #21156)</para>
      </listitem>

    </itemizedlist>
  </sect1>

  <sect1>

    <title>Version 7.0.0 (2022-10-10)</title>

    <para>This is a major update. The following major new features were added:</para>

    <itemizedlist>

      <listitem>
        <para>Virtual machines can be fully encrypted now, including the VM config logs
          and saved states (CLI only for now)</para>
      </listitem>

      <listitem>
        <para>OCI: Cloud virtual machines can be added to Virtual Machine Manager and controlled
          as local VMs</para>
      </listitem>

      <listitem>
        <para>OCI: Cloud networks can now be configured via Network Manager tool same way as
          it is done for Host-only and NAT networks</para>
      </listitem>

      <listitem>
        <para>GUI: Added a new utility similar to "top" or "resource monitor" which lists peformance statistics
        (CPU usage, RAM usage, disk I/O rate, etc.) of running guests</para>
      </listitem>

      <listitem>
        <para>GUI: Reworked the new vm wizard to integrate the unattended
        guest OS installation and to have a more streamlined work flow</para>
      </listitem>

      <listitem>
        <para>GUI: Added a new help viewer widget which enables the user manual to be navigated
        and searched</para>
      </listitem>

      <listitem>
        <para>GUI: Adding new notification center unifying most of running progresses and error
          reporting around the GUI</para>
      </listitem>

      <listitem>
        <para>GUI: Improved theme support on all platforms. Linux and macOS
          use native engine while for Windows host it is separately implemented</para>
      </listitem>

      <listitem>
        <para>GUI: Large icon update</para>
      </listitem>

      <listitem>
        <para>Audio recording: Now using Vorbis as the default audio format for WebM containers.
          Opus is no longer being used</para>
      </listitem>

      <listitem>
        <para>Audio: Added "default" host driver type to make it possible to move VMs (appliances) between different platforms
          without the need of changing the audio driver explicitly. When the "default" driver is selected, the best audio backend
          option for a platform will be used. This is the default for newly created VMs</para>
      </listitem>

      <listitem>
        <para>Guest Control: Implemented initial support for automatic updating
          of Guest Additions for Linux guests</para>
      </listitem>

      <listitem>
        <para>Guest Control: Implemented ability to wait for and/or reboot the
          guest when updating Guest Additions via VBoxManage</para>
      </listitem>

      <listitem>
        <para>VBoxManage: Added Guest Control "waitrunlevel" sub-command to
          make it possible to wait for a guest to reach a certain run level</para>
      </listitem>

      <listitem>
        <para>Windows hosts: Added experimental support of running autostarted VMs
          in session 0, to allow running VMS even when a usser is not being logged
          in (disabled by default, please consult the manual)</para>
      </listitem>

      <listitem>
        <para>macOS host: Dropped all kernel extensions. VirtualBox relies fully on
          the hypervisor and vmnet frameworks provided by Apple now. At the moment
          the implementation lacks "Internal Networking" functionality. This will be
          provided at a later date</para>
      </listitem>

      <listitem>
        <para>macOS host: Providing a Developer Preview package for systems with
          an Apple silicon CPU. This is unsupported work in progress, and is known
          to have very modest performance</para>
      </listitem>

      <listitem>
        <para>Linux Guest Additions: Reworked guest screen re-size functionality,
          added basic integration with some of guest Desktop Environments</para>
      </listitem>

      <listitem>
        <para>Devices: Implemented new 3D support based on DirectX 11 (and DXVK
          on non Windows hosts)</para>
      </listitem>

      <listitem>
        <para>Devices: Added virtual IOMMU devices (Intel and AMD variant)</para>
      </listitem>

      <listitem>
        <para>Devices: Added virtual TPM 1.2 and 2.0 devices</para>
      </listitem>

      <listitem>
        <para>Devices: The EHCI and XHCI USB controller devices are now part of the
          open source base package</para>
      </listitem>

      <listitem>
        <para>EFI: Added support for Secure Boot</para>
      </listitem>

      <listitem>
        <para>Debugging: Added experimental support for guest debugging through
          GDB and highly experimental support for guest debugging through KD/WinDbg</para>
      </listitem>

    </itemizedlist>

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

    <itemizedlist>

      <listitem>
        <para>OCI: Cloud networking functionality is enhanced for local VMs, now local VMs could
          be connected to cloud networking</para>
      </listitem>

      <listitem>
        <para>GUI: Improved behavior of the virtual machine list and various VM related tools in case
          multiple items are selected</para>
      </listitem>

      <listitem>
        <para>GUI: On available platforms, added a new option to disable the host's screensaver</para>
      </listitem>

      <listitem>
        <para>GUI: Reworked global preferences, machine settings and the wizards to improve stability
          and usability</para>
      </listitem>

      <listitem>
        <para>GUI: Improving mouse handling in multi-monitor case on X11 platform</para>
      </listitem>

      <listitem>
        <para>GUI: Medium enumeration engine was reworked to improve permormance</para>
      </listitem>

      <listitem>
        <para>GUI: NAT Network stuff was moved from global preferences to global Network Manager tool</para>
      </listitem>

      <listitem>
        <para>GUI: Extension Pack Manager was moved from global preferences to global tools</para>
      </listitem>

      <listitem>
        <para>GUI: Improved overall accessibility</para>
      </listitem>

      <listitem>
        <para>GUI: Migrating to recent Qt versions</para>
      </listitem>

    </itemizedlist>
  </sect1>

</chapter>