diff --git a/reference/gmp/book.xml b/reference/gmp/book.xml
index 3a917f8712..6bc30c9cbe 100644
--- a/reference/gmp/book.xml
+++ b/reference/gmp/book.xml
@@ -13,9 +13,6 @@
    These functions allow for arbitrary-length integers to be worked with using
    the GNU <acronym>MP</acronym> library.
   </simpara>
-  <simpara>
-   These functions have been added in PHP 4.0.4. 
-  </simpara>
   <note>
    <para>
     Most GMP functions accept GMP number arguments. These are shown in this