You need at least one \item
diff --git a/Doc/whatsnew/whatsnew25.tex b/Doc/whatsnew/whatsnew25.tex
index 0da9b5a..5e3b3c6 100644
--- a/Doc/whatsnew/whatsnew25.tex
+++ b/Doc/whatsnew/whatsnew25.tex
@@ -790,7 +790,7 @@
 
 \begin{itemize}
 
-% the pickle module no longer uses the deprecated bin parameter.
+\item XXX the pickle module no longer uses the deprecated bin parameter.
 
 \end{itemize}