Added descriptions of \versionadded and \versionchanged.
diff --git a/Doc/doc/doc.tex b/Doc/doc/doc.tex
index 05ea40d..13bc7ed 100644
--- a/Doc/doc/doc.tex
+++ b/Doc/doc/doc.tex
@@ -571,6 +571,26 @@
\macro{release} in the preamble.
\end{macrodesc}
+ \begin{macrodesc}{versionadded}{\p{version}}
+ The version of Python which added the described feature to the
+ library or C API. This is typically added to the end of the
+ first paragraph of the description before any availability
+ notes. The location should be selected so the explanation makes
+ sense and may vary as needed.
+ \end{macrodesc}
+
+ \begin{macrodesc}{versionchanged}{\op{explanation}\p{version}}
+ The version of Python in which the named feature was changed in
+ some way (new parameters, changed side effects, etc.).
+ \var{explanation} should be a \emph{brief} explanation of the
+ change consisting of a non-capitalized sentence fragment; a
+ period will be appended by the formatting process.
+ This is typically added to the end of the first paragraph of the
+ description before any availability notes and after
+ \macro{versionadded}. The location should be selected so the
+ explanation makes sense and may vary as needed.
+ \end{macrodesc}
+
\subsection{Module-specific Markup}