State which version systemtap @cast available in.

diff --git a/doc/SystemTap_Beginners_Guide/en-US/ScriptConstructs.xml b/doc/SystemTap_Beginners_Guide/en-US/ScriptConstructs.xml
index 2fb0a95b04cbb98a20e021cbe4d7f7d1e78e483c..565f89c5f98d0a7e9553da24afb89889dcaad84a 100644 (file)
--- a/doc/SystemTap_Beginners_Guide/en-US/ScriptConstructs.xml
+++ b/doc/SystemTap_Beginners_Guide/en-US/ScriptConstructs.xml
@@ -259,7 +259,8 @@ and limits the string to <replaceable>n</replaceable> bytes.
        Also the typing information available within a probe handler is not
        available within a function;
        SystemTap functions arguments use a long in place of a typed pointer.
-       SystemTap's <command>@cast</command> operator can be used to indicate
+       SystemTap's <command>@cast</command> operator (first available in 
+       SystemTap 0.9) can be used to indicate
        the correct type of the object.
 </para>