diff --git a/reference/fileinfo/functions/finfo-open.xml b/reference/fileinfo/functions/finfo-open.xml
index 608de3abd0..c3d84667d5 100644
--- a/reference/fileinfo/functions/finfo-open.xml
+++ b/reference/fileinfo/functions/finfo-open.xml
@@ -67,6 +67,17 @@
   </para>
  </refsect1>
 
+  <refsect1 role="notes">
+  &reftitle.notes;
+  <warning>
+   <para>
+    As of PHP >= 5.3.11 and >= 5.4.1 the magic datababase format has changed. Due to this, the internal mime database was upgraded. This affects especially the code where external magic is read in. Reading in magic files of the older formats will not work.
+    
+    Also, some textual representations of the mime types has changed, for instance for PHP would be "PHP script, ASCII text" instead of "PHP script text" returned.
+   </para>
+  </warning>
+ </refsect1>
+ 
  <refsect1 role="examples">
   &reftitle.examples;
   <example>