diff --git a/reference/yaf/yaf_dispatcher/autorender.xml b/reference/yaf/yaf_dispatcher/autorender.xml
index 76400fe1ed..29483f2b09 100644
--- a/reference/yaf/yaf_dispatcher/autorender.xml
+++ b/reference/yaf/yaf_dispatcher/autorender.xml
@@ -11,7 +11,7 @@
   &reftitle.description;
   <methodsynopsis>
    <modifier>public</modifier> <type>Yaf_Dispatcher</type><methodname>Yaf_Dispatcher::autoRender</methodname>
-   <methodparam><type>bool</type><parameter>flag</parameter></methodparam>
+   <methodparam choice="opt"><type>bool</type><parameter>flag</parameter></methodparam>
   </methodsynopsis>
   <para>
    <classname>Yaf_Dispatcher</classname> will render automatically after 
@@ -33,7 +33,13 @@
     <term><parameter>flag</parameter></term>
     <listitem>
      <para>
-       bool
+      bool
+      <note>
+       <para>
+        since 2.2.0, if this parameter is not given, then the current state
+        will be renturned
+       </para>
+      </note>
      </para>
     </listitem>
    </varlistentry>
diff --git a/reference/yaf/yaf_dispatcher/flushinstantly.xml b/reference/yaf/yaf_dispatcher/flushinstantly.xml
index f2630bcf93..7f12170f75 100644
--- a/reference/yaf/yaf_dispatcher/flushinstantly.xml
+++ b/reference/yaf/yaf_dispatcher/flushinstantly.xml
@@ -11,7 +11,7 @@
   &reftitle.description;
   <methodsynopsis>
    <modifier>public</modifier> <type>Yaf_Dispatcher</type><methodname>Yaf_Dispatcher::flushInstantly</methodname>
-   <methodparam><type>bool</type><parameter>flag</parameter></methodparam>
+   <methodparam choice="opt"><type>bool</type><parameter>flag</parameter></methodparam>
   </methodsynopsis>
   <para>
 
@@ -28,7 +28,13 @@
     <term><parameter>flag</parameter></term>
     <listitem>
      <para>
-      
+      bool
+       <note>
+       <para>
+        since 2.2.0, if this parameter is not given, then the current state
+        will be renturned
+       </para>
+      </note>     
      </para>
     </listitem>
    </varlistentry>