diff --git a/docs/reference/gio/overview.xml b/docs/reference/gio/overview.xml
index 5fdfbf809..3e34ee1e0 100644
--- a/docs/reference/gio/overview.xml
+++ b/docs/reference/gio/overview.xml
@@ -518,8 +518,10 @@
         implementation with the highest priority.
       </para>
       <para>
-        gvfs contains a GConf-based implementation that uses the
-        same GConf keys as gnome-vfs.
+        This extension point has been discontinued in GLib 2.28. It is
+        still available to keep API and ABI stability, but GIO is no
+        longer using to for default handlers. Instead, the mime handler
+        mechanism is used, together with x-scheme-handler pseudo-mimetypes.
       </para>
    </formalpara>
 
@@ -544,6 +546,24 @@
        #GProxy interface, and must be named after the network
        protocol they are proxying.
      </para>
+     <para>
+       glib-networking contains an implementation of this extension
+       point based on libproxy.
+     </para>
+   </formalpara>
+
+   <formalpara>
+     <title>G_TLS_BACKEND_EXTENSION_POINT_NAME</title>
+
+     <para>
+       Allows to provide implementations for TLS support.
+       Implementations of this extension point must implement
+       the #GTlsBackend interface.
+     </para>
+     <para>
+       glib-networking contains an implementation of this extension
+       point.
+     </para>
    </formalpara>
 
   </chapter>