\section[release-notes]{Release notes}
+\subsection[release-2-06]{Release notes for version~2.06---9/97}
+\input{2-06-notes.lit}
+
+\subsection[release-2-05]{Release notes for version~2.05---7/97}
+%\input{2-05-notes.lit}
+
\subsection[release-2-04]{Release notes for version~2.04---6/97}
\input{2-04-notes.lit}