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 MP library.
-
- These functions have been added in PHP 4.0.4.
-
Most GMP functions accept GMP number arguments. These are shown in this