diff --git a/appendices/ini.xml b/appendices/ini.xml
index b1a877094f..01df38fe9d 100644
--- a/appendices/ini.xml
+++ b/appendices/ini.xml
@@ -4893,9 +4893,10 @@ include_path=".;c:\php\includes"
         automatically inherited.
        </para>
        <para>
-        The restriction specified with <option>open_basedir</option> is actually a
-        prefix, not a directory name.  This means that "<literal>open_basedir
-        = /dir/incl</literal>" also allows access to "<literal>/dir/include</literal>" and
+        The restriction specified with <option>open_basedir</option> is a
+        directory name since PHP 5.2.16 and 5.3.4. Previous versions used it
+        as a prefix. This means that "<literal>open_basedir
+        = /dir/incl</literal>" also allowed access to "<literal>/dir/include</literal>" and
         "<literal>/dir/incls</literal>" if they exist. When you want to restrict access
         to only the specified directory, end with a slash. For example:
         <literal>open_basedir = /dir/incl/</literal>