added a missing +\versionadded{2.2} tag
diff --git a/Doc/lib/libsimplexmlrpc.tex b/Doc/lib/libsimplexmlrpc.tex
index e4ca0ea..a25cabf 100644
--- a/Doc/lib/libsimplexmlrpc.tex
+++ b/Doc/lib/libsimplexmlrpc.tex
@@ -6,6 +6,7 @@
 \moduleauthor{Brian Quinlan}{brianq@activestate.com}
 \sectionauthor{Fred L. Drake, Jr.}{fdrake@acm.org}
 
+\versionadded{2.2}
 
 The \module{SimpleXMLRPCServer} module provides a basic server
 framework for XML-RPC servers written in Python.  Servers can either