diff --git a/Doc/Manual/Library.html b/Doc/Manual/Library.html
index eaebbede5..833a38393 100644
--- a/Doc/Manual/Library.html
+++ b/Doc/Manual/Library.html
@@ -890,7 +890,10 @@ char *foo();
 </div>
 
 <p>
-This will release the result.
+This will release the result if the appropriate target language support is available.
+SWIG provides the appropriate "newfree" typemap for <tt>char *</tt> so that the memory is released,
+however, you may need to provide your own "newfree" typemap for other types.
+See <a href="Customization.html#ownership">Object ownership and %newobject</a> for more details.
 </p>
 
 <H3><a name="Library_nn12"></a>8.3.4 cstring.i</H3>