Use versionadded for new features
diff --git a/Doc/lib/liburllib2.tex b/Doc/lib/liburllib2.tex
index deea3a4..ae25e53 100644
--- a/Doc/lib/liburllib2.tex
+++ b/Doc/lib/liburllib2.tex
@@ -250,11 +250,13 @@
\begin{methoddesc}[Request]{add_unredirected_header}{key, header}
Add a header that will not be added to a redirected request.
+\versionadded{2.4}
\end{methoddesc}
\begin{methoddesc}[Request]{has_header}{header}
Return whether the instance has the named header (checks both regular
and unredirected).
+\versionadded{2.4}
\end{methoddesc}
\begin{methoddesc}[Request]{get_full_url}{}
@@ -637,6 +639,8 @@
\subsection{HTTPErrorProcessor Objects \label{http-error-processor-objects}}
+\versionadded{2.4}
+
\begin{methoddesc}[HTTPErrorProcessor]{unknown_open}{}
Process HTTP error responses.