diff --git a/nixos/doc/manual/release-notes/rl-1412.xml b/nixos/doc/manual/release-notes/rl-1412.xml
index 2e5ff5fb495..324a3e6bdc2 100644
--- a/nixos/doc/manual/release-notes/rl-1412.xml
+++ b/nixos/doc/manual/release-notes/rl-1412.xml
@@ -128,6 +128,9 @@ rather than <literal>c-<replaceable>container-name</replaceable></literal>.</par
 <listitem><para>VirtualBox has been upgraded to 4.3.20 release. Users may be required to run
 <command>rm -rf /tmp.vbox*</command>. <literal>imports = [ &lt;nixpkgs/nixos/modules/programs/virtualbox.nix&gt; ]</literal>
 is no longer necessary, use <literal>services.virtualboxHost.enable = true</literal> instead.
+</para>
+<para>Also, hardening mode is now enabled by default, which means that unless you want to use
+USB support, you no longer need to be a member of the <literal>vboxusers</literal> group.
 </para></listitem>
 
 <listitem><para>Chromium has been updated to 39.0.2171.65. <option>enablePepperPDF</option> is now enabled by default.