Index: /trunk/doc/manual/en_US/dita/UserManual.ditamap
===================================================================
--- /trunk/doc/manual/en_US/dita/UserManual.ditamap	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/UserManual.ditamap	(revision 105938)
@@ -258,5 +258,4 @@
          <topicref href="topics/guestadd-video.dita">
             <topicref href="topics/guestadd-3d.dita"/>
-            <topicref href="topics/guestadd-2d.dita"/>
          </topicref>
          <topicref href="topics/seamlesswindows.dita"/>
@@ -562,5 +561,4 @@
          <topicref href="topics/ts_win-cpu-usage-rept.dita"/>
          <topicref href="topics/ts_host-powermgmt.dita"/>
-         <topicref href="topics/ts_gui-2d-grayed-out.dita"/>
       </topicref>
       <topicref href="topics/ts_win-guests.dita">
Index: /trunk/doc/manual/en_US/dita/topics/ExperimentalFeatures.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/ExperimentalFeatures.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/ExperimentalFeatures.dita	(revision 105938)
@@ -5,11 +5,5 @@
   
   <body>
-    <p>
-      Some <ph conkeyref="vbox-conkeyref-phrases/product-name"/> features are labeled as experimental. Such
-      features are provided on an "as-is" basis and are not formally
-      supported. However, feedback and suggestions about such features
-      are welcome. A comprehensive list of experimental features is as
-      follows:
-    </p>
+    <p> Some <ph conkeyref="vbox-conkeyref-phrases/product-name"/> features are labeled as experimental. Such features are provided on an "as-is" basis and are not formally supported. However, feedback and suggestions about such features are welcome. A comprehensive list of experimental features is as follows: </p>
     <ul>
       <li>
@@ -17,10 +11,4 @@
           Hardware 3D acceleration support for Windows, Linux, and
           Oracle Solaris guests
-        </p>
-      </li>
-      <li>
-        <p>
-          Hardware 2D video playback acceleration support for Windows
-          guests
         </p>
       </li>
@@ -51,7 +39,5 @@
       </li>
       <li>
-        <p>
-          Using <ph conkeyref="vbox-conkeyref-phrases/product-name"/> and Hyper-V on the same host
-        </p>
+        <p> Using <ph conkeyref="vbox-conkeyref-phrases/product-name"/> and Hyper-V on the same host </p>
       </li>
     </ul>
Index: /trunk/doc/manual/en_US/dita/topics/KnownProblems.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/KnownProblems.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/KnownProblems.dita	(revision 105938)
@@ -19,4 +19,5 @@
             >Hyper-V</b> on the same host. To fix this, certain Windows features like "Hyper-V Platform", "Virtual
           Machine Platform" and "Windows Hypervisor Platform" must be turned off, followed by a host reboot. </p>
+        <p>On newer Windows versions, enabling the device security features Core Isolation or Memory Integrity will use Hyper-V, even if you had previously turned it off.</p>
         <p>Additionally, the Microsoft Device Guard and Credential Guard hardware readiness tool might have to be used
           in order to turn off more features. For example, by running the following command: </p>
@@ -138,7 +139,7 @@
           <ul id="ul_ddr_kzn_hcc">
             <li>
-              <p>x86-based guest operating systems will not run</p>
-      </li>
-      <li>
+              <p>x86-based guest operating systems will not run.</p>
+            </li>
+            <li>
               <p>Arm(AArch64) guests only. Arm 32 is not supported at present.</p>
             </li>
@@ -199,6 +200,5 @@
         <ul>
           <li>
-            <p>USB support on Oracle Solaris hosts requires Oracle Solaris 11 version snv_124 or later. Webcams and
-              other isochronous devices are known to have poor performance. </p>
+            <p>USB support on Oracle Solaris hosts requires Oracle Solaris 11 FCS or later. Webcams and other isochronous devices are known to have poor performance. </p>
           </li>
           <li>
@@ -213,7 +213,5 @@
           </li>
           <li>
-            <p>Crossbow-based bridged networking on Oracle Solaris 11 hosts does not work directly with aggregate links.
-              However, you can use <userinput>dladm</userinput> to manually create a VNIC over the aggregate link and
-              use that with a VM. This limitation does not exist in Oracle Solaris 11u1 build 17 and later. </p>
+            <p>Crossbow-based bridged networking on Oracle Solaris 11 hosts does not work directly with aggregate links. However, you can use <userinput>dladm</userinput> to manually create a VNIC over the aggregate link and use that with a VM. This limitation does not exist in Oracle Solaris 11 update 1 (11.1) and later. </p>
           </li>
         </ul>
Index: /trunk/doc/manual/en_US/dita/topics/arm-host-limitations.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/arm-host-limitations.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/arm-host-limitations.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="arm-host-limitations">
   <title>Arm Host Limitations</title>
-  <!-- 7.1: Arm platform limitations -->
   <body>
     <p>The following limitations apply when using an Arm platform host:</p>
@@ -10,9 +9,6 @@
     <li><p>Only VMSVGA is supported as a graphics controller.</p></li>
       <li>
-        <p>2D and 3D video acceleration isn't available on Arm hosts.</p>
-      </li>
-      <li><p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> Guest Additions are not available for Arm
-          host platforms. Therefore, features such as seamless windows and shared folders are not
-          available.</p></li>   
+        <p>3D video acceleration isn't available on Arm hosts.</p>
+      </li>   
       <li><p>Unattended installation isn't available.</p></li>
       <li><p>The following <b>System</b> page settings aren't available for Arm guests:</p>
Index: /trunk/doc/manual/en_US/dita/topics/autologon_win.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/autologon_win.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/autologon_win.dita	(revision 105938)
@@ -58,15 +58,5 @@
       </li>
       <li>
-        <p><b outputclass="bold">Windows Vista, Windows 7, Windows 8,
-            and Windows 10 guests.</b> The login subsystem does
-            not support the so-called Secure Attention Sequence,
-            <codeph>Ctrl+Alt+Del</codeph>. As a result, the guest's
-            group policy settings need to be changed to not use the
-            Secure Attention Sequence. Also, the user name given is only
-            compared to the true user name, not the user friendly name.
-            This means that when you rename a user, you still have to
-            supply the original user name as Windows never renames user
-            accounts internally.
-          </p>
+        <p><b outputclass="bold">Windows Vista, Windows 7, Windows 8, Windows 10 and Windows 11 guests.</b> The login subsystem does not support the so-called Secure Attention Sequence, <codeph>Ctrl+Alt+Del</codeph>. As a result, the guest's group policy settings need to be changed to not use the Secure Attention Sequence. Also, the user name given is only compared to the true user name, not the user friendly name. This means that when you rename a user, you still have to supply the original user name as Windows never renames user accounts internally. </p>
       </li>
       <li>
Index: /trunk/doc/manual/en_US/dita/topics/cloud-vm-control.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/cloud-vm-control.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/cloud-vm-control.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="cloud-vm-control">
   <title>Controlling a Cloud VM</title>
-  <!-- 7.1: OCI instance reset feature-->
   <body>
     <p>You can use <ph conkeyref="vbox-conkeyref-phrases/vbox-mgr"/> to control a cloud VM as follows: </p>
Index: /trunk/doc/manual/en_US/dita/topics/cloud-vm-monitor.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/cloud-vm-monitor.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/cloud-vm-monitor.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="cloud-vm-monitor">
   <title>Monitoring Cloud VM Performance</title>
-  <!--7.1: OCI instance monitoring -->
   <body>
     <p>You can monitor the performance of cloud VM instances in the following ways:</p>
Index: /trunk/doc/manual/en_US/dita/topics/create-optical-disk-image.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/create-optical-disk-image.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/create-optical-disk-image.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="create-optical-disk-image">
   <title>Creating a Virtual Optical Disk Image</title>
-  <!-- 7.1: Can now import VISO files-->
   <body>
     <p>Use the <b outputclass="bold">VISO Creator</b> tool to create a virtual optical disk image. This enables you to
Index: /trunk/doc/manual/en_US/dita/topics/create-vm-wizard-name-os.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/create-vm-wizard-name-os.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/create-vm-wizard-name-os.dita	(revision 105938)
@@ -2,6 +2,5 @@
 <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
 <topic xml:lang="en-us" id="create-vm-wizard-name-os">
-  <title>Specify Name and Operating System</title>
- <!--7.1: Subtype field added --> 
+  <title>Specify Name and Operating System</title> 
   <body>
     <p>
Index: /trunk/doc/manual/en_US/dita/topics/create-vm-wizard.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/create-vm-wizard.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/create-vm-wizard.dita	(revision 105938)
@@ -20,5 +20,4 @@
       VM. <ph conkeyref="vbox-conkeyref-phrases/product-name"/> does not supply the OS or any license required to use
       it. </p>
-    <p><!--7.1: Note added re platforms and paragraph re ISO requirement. Reworded when removing screenshots. Subpages also updated.--></p>
   </body>
 </topic>
Index: /trunk/doc/manual/en_US/dita/topics/features-overview.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/features-overview.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/features-overview.dita	(revision 105938)
@@ -11,8 +11,6 @@
     <ul>
       <li>
-        <p><b outputclass="bold">Portability.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/>
-          runs on a large number of 64-bit host operating systems. See
-          <xref href="hostossupport.dita#hostossupport"/>.
-        </p>
+        <p><b outputclass="bold">Portability. </b>
+          <ph conkeyref="vbox-conkeyref-phrases/product-name"/> runs on a large number of 64-bit host operating systems. See <xref href="hostossupport.dita#hostossupport"/>. </p>
         <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> is a so-called <i>hosted</i> hypervisor, sometimes
           referred to as a <i>type 2</i> hypervisor. Whereas a <i>bare-metal</i> or <i>type 1</i> hypervisor runs
@@ -52,29 +50,14 @@
         <ul>
           <li>
-            <p><b outputclass="bold">Guest multiprocessing
-              (SMP).</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can present up to 32
-              virtual CPUs to each virtual machine, irrespective of how
-              many CPU cores are physically present on your host.
-            </p>
+            <p><b outputclass="bold">Guest multiprocessing (SMP). </b>
+              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can present up to 32 virtual CPUs to each virtual machine, irrespective of how many CPU cores are physically present on your host. </p>
           </li>
           <li>
             <p><b outputclass="bold">USB device support.</b>
-              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> implements a virtual USB controller and
-              enables you to connect arbitrary USB devices to your
-              virtual machines without having to install device-specific
-              drivers on the host. USB support is not limited to certain
-              device categories. See <xref href="settings-usb.dita#settings-usb"/>.
-            </p>
+              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> implements a virtual USB controller and enables you to connect arbitrary USB devices to your virtual machines without having to install device-specific drivers on the host. USB support is not limited to certain device categories. See <xref href="settings-usb.dita#settings-usb"/>. </p>
           </li>
           <li>
             <p><b outputclass="bold">Hardware compatibility.</b>
-              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> virtualizes a vast array of
-              virtual devices, among them many devices that are typically provided by other
-              virtualization platforms. That includes IDE, SCSI, and SATA hard disk controllers,
-              several virtual network cards and sound cards, virtual serial ports and an
-              Input/Output Advanced Programmable Interrupt Controller (I/O APIC), which is found in
-              many computer systems. This enables easy cloning of disk images from real machines and
-              importing of third-party virtual machines into <ph
-                conkeyref="vbox-conkeyref-phrases/product-name"/>. </p>
+              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> virtualizes a vast array of virtual devices, among them many devices that are typically provided by other virtualization platforms. That includes IDE, SCSI, and SATA hard disk controllers, several virtual network cards and sound cards, virtual serial ports and an Input/Output Advanced Programmable Interrupt Controller (I/O APIC), which is found in many computer systems. This enables easy cloning of disk images from real machines and importing of third-party virtual machines into <ph conkeyref="vbox-conkeyref-phrases/product-name"/>. </p>
           </li>
           <li>
@@ -94,9 +77,5 @@
           <li>
             <p><b outputclass="bold">Multiscreen resolutions.</b>
-              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> virtual machines support screen resolutions
-              many times that of a physical screen, allowing them to be
-              spread over a large number of screens attached to the host
-              system.
-            </p>
+              <ph conkeyref="vbox-conkeyref-phrases/product-name"/> virtual machines support screen resolutions many times that of a physical screen, allowing them to be spread over a large number of screens attached to the host system. </p>
           </li>
           <li>
@@ -120,38 +99,14 @@
       </li>
       <li>
-        <p><b outputclass="bold">Multigeneration branched
-          snapshots.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can save arbitrary
-          snapshots of the state of the virtual machine. You can go back
-          in time and revert the virtual machine to any such snapshot
-          and start an alternative VM configuration from there,
-          effectively creating a whole snapshot tree. See
-          <xref href="snapshots.dita#snapshots"/>. You can create and delete
-          snapshots while the virtual machine is running.
-        </p>
+        <p><b outputclass="bold">Multigeneration branched snapshots.</b>
+          <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can save arbitrary snapshots of the state of the virtual machine. You can go back in time and revert the virtual machine to any such snapshot and start an alternative VM configuration from there, effectively creating a whole snapshot tree. See <xref href="snapshots.dita#snapshots"/>. You can create and delete snapshots while the virtual machine is running. </p>
       </li>
       <li>
-        <p><b outputclass="bold">VM groups.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/>
-          provides a groups feature that enables the user to organize
-          and control virtual machines collectively, as well as
-          individually. In addition to basic groups, it is also possible
-          for any VM to be in more than one group, and for groups to be
-          nested in a hierarchy. This means you can have groups of
-          groups. In general, the operations that can be performed on
-          groups are the same as those that can be applied to individual
-          VMs: Start, Pause, Reset, Close (Save state, Send Shutdown,
-          Poweroff), Discard Saved State, Show in File System, Sort.
-        </p>
+        <p><b outputclass="bold">VM groups.</b>
+          <ph conkeyref="vbox-conkeyref-phrases/product-name"/> provides a groups feature that enables the user to organize and control virtual machines collectively, as well as individually. In addition to basic groups, it is also possible for any VM to be in more than one group, and for groups to be nested in a hierarchy. This means you can have groups of groups. In general, the operations that can be performed on groups are the same as those that can be applied to individual VMs: Start, Pause, Reset, Close (Save state, Send Shutdown, Poweroff), Discard Saved State, Show in File System, Sort. </p>
       </li>
       <li>
-        <p><b outputclass="bold">Clean architecture and unprecedented
-          modularity.</b> <ph conkeyref="vbox-conkeyref-phrases/product-name"/> has an extremely modular
-          design with well-defined internal programming interfaces and a
-          clean separation of client and server code. This makes it easy
-          to control it from several interfaces at once. For example,
-          you can start a VM simply by clicking on a button in the
-          <ph conkeyref="vbox-conkeyref-phrases/product-name"/> graphical user interface and then control that
-          machine from the command line, or even remotely. See
-          <xref href="frontends.dita#frontends"/>.
-        </p>
+        <p><b outputclass="bold">Clean architecture and unprecedented modularity.</b>
+          <ph conkeyref="vbox-conkeyref-phrases/product-name"/> has an extremely modular design with well-defined internal programming interfaces and a clean separation of client and server code. This makes it easy to control it from several interfaces at once. For example, you can start a VM simply by clicking on a button in the <ph conkeyref="vbox-conkeyref-phrases/product-name"/> graphical user interface and then control that machine from the command line, or even remotely. See <xref href="frontends.dita#frontends"/>. </p>
         <p>Due to its modular architecture, <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can also expose its
           full functionality and configurability through a comprehensive <b outputclass="bold">software development kit
Index: /trunk/doc/manual/en_US/dita/topics/frontends.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/frontends.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/frontends.dita	(revision 105938)
@@ -33,5 +33,4 @@
       </li>
       <li>
-        <!-- Separate mode: check with Klaus whether this needs to be covered in 7.1-->
         <p><b>Separate mode.</b> A front end that is based on <userinput>VBoxHeadless</userinput>, 
           but does not require VRDE or an RDP viewer. See <xref href="vboxheadless-separate-mode.dita">Separate Mode</xref>.</p>
Index: /trunk/doc/manual/en_US/dita/topics/guest-os-Arm.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guest-os-Arm.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/guest-os-Arm.dita	(revision 105938)
@@ -1,7 +1,6 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
-<topic xml:lang="en-us" id="guestossupport">
+<topic xml:lang="en-us" id="guest-os-arm">
   <title>Arm Guest Operating Systems</title>
-  
   <body>
     <p>Oracle Premier Support covers the running of the following guest OSs in a VM with an Arm platform architecture.</p>
@@ -20,6 +19,4 @@
       </ul>
     </p>
-    
-    
   </body>
 </topic>
Index: /trunk/doc/manual/en_US/dita/topics/guest-os-legacy.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guest-os-legacy.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/guest-os-legacy.dita	(revision 105938)
@@ -10,5 +10,5 @@
     <p>The following legacy guest operating systems can be used with <ph conkeyref="vbox-conkeyref-phrases/product-name"/>, but only qualify for limited support because of the vintage of the technology involved. Therefore, resolution of customer issues for such legacy guest operating systems cannot be assured. </p>
     <p>See also <xref href="host-guest-matrix.dita"/>.</p>
-    <p>VMs with an x86 or x86-64 platform architecture, as appropriate might run<ul id="ul_j5n_srf_3cc">
+    <p>VMs with an x86 or x86-64 platform architecture, as appropriate might run<ul id="guest-os-other">
         <li>Windows 8 and 8.1 (32-bit and 64-bit) </li>
         <li>Windows 7 (32-bit and 64-bit) </li>
Index: /trunk/doc/manual/en_US/dita/topics/guest-os-x86-64.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guest-os-x86-64.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/guest-os-x86-64.dita	(revision 105938)
@@ -1,7 +1,6 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
-<topic xml:lang="en-us" id="guestossupport">
+<topic xml:lang="en-us" id="guest-os-x86">
   <title>x86 Guest Operating Systems</title>
-  
   <body>
     <p>Oracle Premier Support covers the running of the following guest OSs in a VM with an x86 or x86-64 platform architecture, as appropriate.</p>
Index: unk/doc/manual/en_US/dita/topics/guestadd-2d.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guestadd-2d.dita	(revision 105937)
+++ 	(revision )
@@ -1,56 +1,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
-<topic xml:lang="en-us" id="guestadd-2d">
-  <title>Hardware 2D Video Acceleration for Windows Guests</title>
-  
-  <body>
-    <p>
-        The <ph conkeyref="vbox-conkeyref-phrases/product-name"/> Guest Additions contain experimental hardware
-        2D video acceleration support for Windows guests.
-      </p>
-    <p>
-        With this feature, if an application such as a video player
-        inside your Windows VM uses 2D video overlays to play a movie
-        clip, then <ph conkeyref="vbox-conkeyref-phrases/product-name"/> will attempt to use your host's video
-        acceleration hardware instead of performing overlay stretching
-        and color conversion in software, which would be slow. This
-        currently works for Windows, Linux and macOS host platforms,
-        provided that your host operating system can make use of 2D
-        video acceleration in the first place.
-      </p>
-    <p>
-        Hardware 2D video acceleration currently has the following
-        preconditions:
-      </p>
-    <ul>
-      <li>
-        <p>
-            Only available for Windows guests, running Windows XP or
-            later.
-          </p>
-      </li>
-      <li>
-        <p>
-            Guest Additions must be installed.
-          </p>
-      </li>
-      <li>
-        <p>
-            Because 2D support is still experimental at this time, it is
-            disabled by default and must be <i>manually
-            enabled</i> in the VM settings. See
-            <xref href="settings-display.dita#settings-display"/>.
-          </p>
-      </li>
-    </ul>
-    <p>
-        Technically, <ph conkeyref="vbox-conkeyref-phrases/product-name"/> implements this by exposing video
-        overlay DirectDraw capabilities in the Guest Additions video
-        driver. The driver sends all overlay commands to the host
-        through a special communication tunnel implemented by
-        <ph conkeyref="vbox-conkeyref-phrases/product-name"/>. On the host side, OpenGL is then used to
-        implement color space transformation and scaling.
-      </p>
-  </body>
-  
-</topic>
Index: /trunk/doc/manual/en_US/dita/topics/guestadd-clipboard.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guestadd-clipboard.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/guestadd-clipboard.dita	(revision 105938)
@@ -5,8 +5,7 @@
   
   <body>
-    <!-- 7.1: Shared clipboard check box; clarify operation with dev -->
     <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> enables you to copy clipboard content from the host to the
       guest, and vice versa. For this to work the latest version of the Guest Additions must be installed on the
-      guest.</p>    
+      guest.</p>
     <p>For security reasons drag and drop can be configured at runtime on a per-VM basis either using the <b
         outputclass="bold">Shared Clipboard</b> menu item in the <b outputclass="bold">Devices</b> menu of the virtual
Index: /trunk/doc/manual/en_US/dita/topics/guestadd-gc-file-manager.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guestadd-gc-file-manager.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/guestadd-gc-file-manager.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="guestadd-gc-file-manager">
   <title>Guest Control File Manager</title>
-  <!-- 7.1: new icons added, pic removed-->
   <body>
     <p>If you have Guest Additions installed, you can use the Guest Control File Manager to copy files between a virtual
Index: /trunk/doc/manual/en_US/dita/topics/guestadd-intro.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/guestadd-intro.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/guestadd-intro.dita	(revision 105938)
@@ -51,6 +51,5 @@
           had manually entered an arbitrary resolution in the guest's <b outputclass="bold">Display</b> settings. See
             <xref href="intro-resize-window.dita#intro-resize-window"/>. </p>
-        <p>If the Guest Additions are installed, 3D graphics and 2D video for guest applications can be accelerated. See
-            <xref href="guestadd-video.dita#guestadd-video"/>. </p>
+        <p>If the Guest Additions are installed, 3D graphics for guest applications can be accelerated. See <xref href="guestadd-video.dita#guestadd-video"/>. </p>
       </li>
       <li>
Index: /trunk/doc/manual/en_US/dita/topics/gui-tools-global.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/gui-tools-global.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/gui-tools-global.dita	(revision 105938)
@@ -3,5 +3,5 @@
 <topic xml:lang="en-us" id="gui-tools-global">
   <title>Global Tools</title>
-  <!-- 7.1: May be best to remove screen shots of menus. Too much of a maintenance headache. DONE. This topic needs turned around to be global config tasks.-->
+  <!--This topic needs turned around to be global config tasks.-->
   <body>
     <p>In the left pane of the <ph conkeyref="vbox-conkeyref-phrases/vbox-mgr"/> window, click the <b outputclass="bold"
Index: /trunk/doc/manual/en_US/dita/topics/gui-vmgroups.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/gui-vmgroups.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/gui-vmgroups.dita	(revision 105938)
@@ -5,5 +5,4 @@
   
   <body>
-      <!-- 7.1: pic removed-->
     <p>Create VM groups if you want to manage several VMs together, and perform functions on them collectively, as well
       as individually. </p>
Index: /trunk/doc/manual/en_US/dita/topics/hostossupport.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/hostossupport.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/hostossupport.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="hostossupport">
   <title>Available Installation Packages</title>
-  <!-- 7.1: Arm platforms; require statement on host support -->
   <body>
     <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> runs on the following host Operating Systems (OSs): </p>
Index: /trunk/doc/manual/en_US/dita/topics/intro-macosxguests.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/intro-macosxguests.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/intro-macosxguests.dita	(revision 105938)
@@ -5,5 +5,5 @@
   
   <body>
-    <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> enables you to install and execute unmodified versions of macOS and OS X guests on supported host hardware. Note that this feature is experimental and thus unsupported. </p>
+    <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> enables you to install and execute unmodified versions of macOS and OS X guests on supported host hardware. This feature is experimental and thus unsupported. </p>
     <p>Be aware of the following important issues before you try to install a macOS guest: </p>
     <ul>
Index: /trunk/doc/manual/en_US/dita/topics/log-viewer.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/log-viewer.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/log-viewer.dita	(revision 105938)
@@ -8,6 +8,4 @@
       records system configuration and events. The <b outputclass="bold">Log Viewer</b> is a <ph
         conkeyref="vbox-conkeyref-phrases/vbox-mgr"/> tool that enables you to view and analyze system logs. </p>
-    <!-- 7.1: New pic required? Tab operation changed. Log Viewer/Filter pane. bugref:10496 
-Pic removed... still need to change/add anything?-->
     <p>To display the Log Viewer, do either of the following: </p>
     <ul>
Index: /trunk/doc/manual/en_US/dita/topics/nichardware.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/nichardware.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/nichardware.dita	(revision 105938)
@@ -9,8 +9,8 @@
     <ul>
       <li>
-        <p>AMD PCNet PCI II (Am79C970A) </p>
+        <p>AMD PCNet PCI II (Am79C970A) Not available on Arm guests.</p>
       </li>
       <li>
-        <p>AMD PCNet FAST III (Am79C973), the default setting </p>
+        <p>AMD PCNet FAST III (Am79C973), the default setting on x86 guests. Not available on Arm guests.</p>
       </li>
       <li>
Index: /trunk/doc/manual/en_US/dita/topics/seamlesswindows.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/seamlesswindows.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/seamlesswindows.dita	(revision 105938)
@@ -5,5 +5,5 @@
   
   <body>
-    <p>With the <i>seamless windows</i> feature of <ph conkeyref="vbox-conkeyref-phrases/product-name"/>, you can have the windows that are displayed within a virtual machine appear side by side next to the windows of your host. This feature is supported for the following guest operating systems, provided that the Guest Additions are installed: </p>
+    <p>With the <i>seamless windows</i> feature of <ph conkeyref="vbox-conkeyref-phrases/product-name"/>, you can have the windows that are displayed within a virtual machine appear side by side next to the windows of your host. This feature is supported for the following x86 or x86_64 guest operating systems, provided that the Guest Additions are installed: </p>
     <ul>
       <li>
Index: /trunk/doc/manual/en_US/dita/topics/security_clipboard.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/security_clipboard.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/security_clipboard.dita	(revision 105938)
@@ -3,5 +3,4 @@
 <topic xml:lang="en-us" id="security_clipboard">
   <title>Clipboard</title>
-  <!-- 7.1: Shared clipboard toggle in guest VM, bugref:10481; input from dev required -->
   <body>
     <p>The shared clipboard enables users to share data between the host and the guest. Enabling the clipboard in
Index: /trunk/doc/manual/en_US/dita/topics/settings-general-advanced.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/settings-general-advanced.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/settings-general-advanced.dita	(revision 105938)
@@ -32,5 +32,4 @@
           using the <b outputclass="bold">Shared Clipboard</b> menu item in the <b outputclass="bold">Devices</b> menu
           of the virtual machine. </p>
-        <!--7.1: r159813: checkbox added to the Shared Clipboard menu? -->
       </li>
       <li>
@@ -41,11 +40,11 @@
             enable restricting of access in either direction.
           </p>
-        <p>For drag and drop to work the Guest Additions need to be installed on the guest. </p>
+        <p>For drag and drop to work, the Guest Additions need to be installed on the guest. </p>
         <note>
           <p>Drag and drop is disabled by default. This setting can be changed at any time using the <b
               outputclass="bold">Drag and Drop</b> menu item in the <b outputclass="bold">Devices</b> menu of the
             virtual machine. </p>
+          <p>See <xref href="guestadd-dnd.dita#guestadd-dnd"/>. </p>
         </note>
-        <p>See <xref href="guestadd-dnd.dita#guestadd-dnd"/>. </p>
       </li>
     </ul>
Index: /trunk/doc/manual/en_US/dita/topics/soft-keyb.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/soft-keyb.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/soft-keyb.dita	(revision 105938)
@@ -4,5 +4,4 @@
 
 <topic xml:lang="en-us" id="soft-keyb">
-  <!-- 7.1: pic removed-->
   <title>Soft Keyboard</title>
   <body>
Index: unk/doc/manual/en_US/dita/topics/ts_gui-2d-grayed-out.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/ts_gui-2d-grayed-out.dita	(revision 105937)
+++ 	(revision )
@@ -1,27 +1,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
-<topic xml:lang="en-us" id="ts_gui-2d-grayed-out">
-  <title>GUI: 2D Video Acceleration Option is Grayed Out</title>
-  
-  <body>
-    <p>
-        To use 2D Video Acceleration within <ph conkeyref="vbox-conkeyref-phrases/product-name"/>, your host's
-        video card should support certain OpenGL extensions. On startup,
-        <ph conkeyref="vbox-conkeyref-phrases/product-name"/> checks for those extensions, and, if the test
-        fails, this option is silently grayed out.
-      </p>
-    <p>
-        To find out why it has failed, you can manually execute the
-        following command:
-      </p>
-    <pre xml:space="preserve">$ VBoxTestOGL --log "log_file_name" --test 2D</pre>
-    <p>
-        It will list the required OpenGL extensions one by one and will
-        show you which one failed the test. This usually means that you
-        are running an outdated or misconfigured OpenGL driver on your
-        host. It can also mean that your video chip is lacking required
-        functionality.
-      </p>
-  </body>
-  
-</topic>
Index: /trunk/doc/manual/en_US/dita/topics/vbox-auth.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vbox-auth.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vbox-auth.dita	(revision 105938)
@@ -25,5 +25,5 @@
             <ul>
               <li>
-                <p>On Linux hosts, <userinput>VBoxAuth.so</userinput> authenticates users against the host's PAM system. </p>
+                <p>On Linux and Oracle Solaris hosts, <userinput>VBoxAuth.so</userinput> authenticates users against the host's PAM system. </p>
               </li>
               <li>
Index: /trunk/doc/manual/en_US/dita/topics/vboxheadless-separate-mode.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vboxheadless-separate-mode.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vboxheadless-separate-mode.dita	(revision 105938)
@@ -4,5 +4,4 @@
   <title>Separate Mode</title> 
   <body>
-    <!-- 7.1: Include this topic? Get feedback during doc review -->
     <p>Separate mode is an alternative front end for local and remote virtual machines. Separate
       mode is based on the <userinput>VBoxHeadless</userinput> front end but uses the <ph
Index: /trunk/doc/manual/en_US/dita/topics/vboxmanage-intro.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vboxmanage-intro.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vboxmanage-intro.dita	(revision 105938)
@@ -6,9 +6,5 @@
             
             <body>
-               <p>As briefly mentioned in <xref href="frontends.dita#frontends"/>, <userinput>VBoxManage</userinput> is
-      the command-line interface to <ph conkeyref = "vbox-conkeyref-phrases/product-name"/>. With it, you can completely control <ph conkeyref = "vbox-conkeyref-phrases/product-name"/> from the
-      command line of your host operating system. <userinput>VBoxManage</userinput> supports all the features that the
-      graphical user interface gives you access to, but it supports a lot more than that. It exposes all the features of
-      the virtualization engine, even those that cannot be accessed from the GUI. </p>
+               <p>As briefly mentioned in <xref href="frontends.dita#frontends"/>, <userinput>VBoxManage</userinput> is the CLI to <ph conkeyref="vbox-conkeyref-phrases/product-name"/>. With it, you can control <ph conkeyref="vbox-conkeyref-phrases/product-name"/> from the command line of your host operating system. <userinput>VBoxManage</userinput> supports all the features that the graphical user interface gives you access to, but it supports a lot more than that. It exposes all the features of the virtualization engine, even those that cannot be accessed from the GUI. </p>
                <p>You will need to use the command line if you want to do the
       following:
@@ -57,6 +53,5 @@
                   </li>
                </ul>
-               <p>You can enter <userinput>VBoxManage list vms</userinput> to have all currently registered VMs listed
-      with all their settings, including their respective names and UUIDs. </p>
+               <p>You can enter <userinput>VBoxManage list vms</userinput> to have all currently registered VMs listed with their respective names and UUIDs. </p>
                <p>Some typical examples of how to control <ph conkeyref="vbox-conkeyref-phrases/product-name"/> from the
       command line are listed below: </p>
@@ -66,14 +61,9 @@
             conkeyref="vbox-conkeyref-phrases/product-name"/>, use <userinput>VBoxManage createvm</userinput> with the
           <!--option not processed within -->--register option, as follows: </p>
-                     <pre xml:space="preserve">$ VBoxManage createvm --name "SUSE 10.2" --register
-VirtualBox Command Line Management Interface Version <varname>version-number</varname>
-(C) 2005-2018 Oracle Corporation
-All rights reserved.
-
-Virtual machine 'SUSE 10.2' is created.
+                     <pre xml:space="preserve">$ VBoxManage createvm --name "SUSE 15.2" --register
+Virtual machine 'SUSE 15.2' is created.
 UUID: c89fc351-8ec6-4f02-a048-57f4d25288e5
-Settings file: '/home/username/.config/VirtualBox/Machines/SUSE 10.2/SUSE 10.2.xml'</pre>
-                     <p>As can be seen from the above output, a new virtual machine has been created with a new UUID and
-          a new XML settings file. </p>
+Settings file: '/home/username/VirtualBox VMs/SUSE 15.2/SUSE 15.2.vbox'</pre>
+                     <p>As can be seen from the above output, a new virtual machine has been created with a new UUID and a new XML-formatted settings file. </p>
                      <p>
           For more details, see
@@ -96,16 +86,9 @@
           See <xref href="vboxmanage-storagectl.dita"/> and <xref href="vboxmanage-storageattach.dita"/>. </p>
                   </li>
+         <li>
+            <p>To start a VM that is currently powered off, use <userinput>VBoxManage startvm</userinput>. See <xref href="vboxmanage-startvm.dita"/>. </p>
+         </li>
                   <li>
-                     <p>To control VM operation, use one of the following: </p>
-                     <ul>
-                        <li>
-                           <p>To start a VM that is currently powered off, use <userinput>VBoxManage
-              startvm</userinput>. See <xref href="vboxmanage-startvm.dita"/>. </p>
-                        </li>
-                        <li>
-                           <p>To pause or save a VM that is currently running or change some of its settings, use
-                <userinput>VBoxManage controlvm</userinput>. See <xref href="vboxmanage-controlvm.dita"/>. </p>
-                        </li>
-                     </ul>
+                     <p>To change a running VM's setttings or change its state (such as pausing, saving, or powering off the VM) use <userinput>VBoxManage controlvm</userinput> See <xref href="vboxmanage-controlvm.dita"/>.</p>
                   </li>
                </ul>
Index: /trunk/doc/manual/en_US/dita/topics/virtintro.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/virtintro.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/virtintro.dita	(revision 105938)
@@ -20,11 +20,6 @@
                   </li>
                   <li>
-                     <p><b outputclass="bold">Guest operating system (guest OS).</b> This is the OS that is running
-          inside the virtual machine. Theoretically, <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can run any
-          x86 OS such as DOS, Windows, OS/2, FreeBSD, and OpenBSD. But to achieve near-native performance of the guest
-          code on your machine, we had to go through a lot of optimizations that are specific to certain OSes. So while
-          your favorite OS <i>may</i> run as a guest, we officially support and optimize for a select few, which include
-          the most common OSes. </p>
-                     <p>See <xref href="guestossupport.dita#guestossupport"/>. </p>
+                     <p><b outputclass="bold">Guest operating system (guest OS).</b> This is the OS that is running inside the virtual machine. Theoretically, <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can run any x86 OS such as DOS, Windows, OS/2, FreeBSD, and OpenBSD on an x86 host. But to achieve near-native performance of the guest code on your machine, we had to go through a lot of optimizations that are specific to certain OSs. So while your favorite OS <i>may</i> run as a guest, we officially support and optimize for a select few, which include the most common OSs. </p>
+                     <p>See <xref href="guest-os.dita"/>.</p>
                   </li>
                   <li>
Index: /trunk/doc/manual/en_US/dita/topics/vm-activity-overview.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vm-activity-overview.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vm-activity-overview.dita	(revision 105938)
@@ -3,5 +3,4 @@
   PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
 <topic xml:lang="en-us" id="vm-activity-overview">
-  <!-- 7.1: Now shows activity info for cloud VMs -->
                <title>VM Activity Overview</title>
                <body>
Index: /trunk/doc/manual/en_US/dita/topics/vm-activity-session-information.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vm-activity-session-information.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vm-activity-session-information.dita	(revision 105938)
@@ -4,6 +4,4 @@
 <topic xml:lang="en-us" id="vm-activity-session-information">
                <title>Session Information Dialog</title>
-  <!-- 7.1: metrics info for OCI instances-->  
-  <!-- 7.1: Add pic for cloud VM Activity info? No.. removing pics.-->
                <body>
                   <p>The Session Information dialog includes multiple tabs that show important configuration and runtime
Index: /trunk/doc/manual/en_US/dita/topics/vm-info.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vm-info.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vm-info.dita	(revision 105938)
@@ -3,6 +3,5 @@
   PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
 <topic xml:lang="en-us" id="vm-info">
-            <title>Monitoring of Virtual Machines</title>
-  <!-- 7.1: metrics info now included for OCI instances -->        
+            <title>Monitoring of Virtual Machines</title>        
             <body>
                <p><ph conkeyref="vbox-conkeyref-phrases/vbox-mgr"/> includes the following tools for viewing runtime
Index: /trunk/doc/manual/en_US/dita/topics/vm-status-bar.dita
===================================================================
--- /trunk/doc/manual/en_US/dita/topics/vm-status-bar.dita	(revision 105937)
+++ /trunk/doc/manual/en_US/dita/topics/vm-status-bar.dita	(revision 105938)
@@ -2,6 +2,5 @@
 <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
 <topic xml:lang="en-us" id="vm-status-bar">
-  <title>Virtual Machine Status Bar</title>
- <!-- 7.1: Processor icon updated --> 
+  <title>Virtual Machine Status Bar</title> 
   <body>
     <p>A status bar is displayed at the bottom of the virtual machine window. The status bar contains icons that enable
