Add versionadded info
diff --git a/Doc/api/init.tex b/Doc/api/init.tex
index 67f74a1..91a5c52 100644
--- a/Doc/api/init.tex
+++ b/Doc/api/init.tex
@@ -276,6 +276,7 @@
Return a string representing the Subversion revision that this Python
executable was built from. This number is a string because it may contain a
trailing 'M' if Python was built from a mixed revision source tree.
+ \versionadded{2.5}
\end{cfuncdesc}
\begin{cfuncdesc}{const char*}{Py_GetPlatform}{}
diff --git a/Doc/lib/libsys.tex b/Doc/lib/libsys.tex
index 7ffa35d..f8f015d 100644
--- a/Doc/lib/libsys.tex
+++ b/Doc/lib/libsys.tex
@@ -31,6 +31,7 @@
A string representing the Subversion revision that this Python executable
was built from. This number is a string because it may contain a trailing
'M' if Python was built from a mixed revision source tree.
+ \versionadded{2.5}
\end{datadesc}
\begin{datadesc}{builtin_module_names}