diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index c58c56755b..1d6c45d356 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1606,6 +1606,17 @@
                 <link linkend='var-FILES'><filename>FILES</filename></link>
                 variable values that contain "//", which is invalid.
                 </para></listitem>
+            <listitem><para><emphasis><filename>host-user-contaminated:</filename></emphasis>
+                Checks that no package produced by the recipe contains any
+                files outside of <filename>/home</filename> with a user or
+                group ID that matches the user running BitBake.
+                A match usually indicates that the files are being installed
+                with an incorrect UID/GID, since target IDs are independent
+                from host IDs.
+                For additional information, see the section describing the
+                <link linkend='ref-tasks-install'><filename>do_install</filename></link>
+                task.
+                </para></listitem>
             <listitem><para><emphasis><filename>incompatible-license:</filename></emphasis>
                 Report when packages are excluded from being created due to
                 being marked with a license that is in
@@ -1633,6 +1644,25 @@
                 <filename>do_install</filename> if the files are not
                 needed in any package.
                 </para></listitem>
+            <listitem><para><emphasis><filename>invalid-chars:</filename></emphasis>
+                Checks that the recipe metadata variables
+                <link linkend='var-DESCRIPTION'><filename>DESCRIPTION</filename></link>,
+                <link linkend='var-SUMMARY'><filename>SUMMARY</filename></link>,
+                <link linkend='var-LICENSE'><filename>LICENSE</filename></link>,
+                and
+                <link linkend='var-SECTION'><filename>SECTION</filename></link>
+                do not contain non-UTF-8 characters.
+                Some package managers do not support such characters.
+                </para></listitem>
+            <listitem><para><emphasis><filename>invalid-packageconfig:</filename></emphasis>
+                Checks that no undefined features are being added to
+                <link linkend='var-PACKAGECONFIG'><filename>PACKAGECONFIG</filename></link>.
+                For example, any name "foo" for which the following form
+                does not exist:
+                <literallayout class='monospaced'>
+     PACKAGECONFIG[foo] = "..."
+                </literallayout>
+                </para></listitem>
             <listitem><para><emphasis><filename>la:</filename></emphasis>
                 Checks <filename>.la</filename> files for any <filename>TMPDIR</filename>
                 paths.
diff --git a/documentation/ref-manual/ref-tasks.xml b/documentation/ref-manual/ref-tasks.xml
index d180eee7bb..22c1e26eb9 100644
--- a/documentation/ref-manual/ref-tasks.xml
+++ b/documentation/ref-manual/ref-tasks.xml
@@ -300,7 +300,8 @@
                     recursive <filename>cp</filename> command, can preserve the
                     UID and/or GID of the original file, which is usually not
                     what you want.
-                    The <filename>host-user-contaminated</filename>
+                    The
+                    <link linkend='ref-classes-insane'><filename>host-user-contaminated</filename></link>
                     QA check checks for files that probably have the wrong
                     ownership.
                 </para>