Update version number to match Include/patchlevel.h.
diff --git a/Doc/texinputs/boilerplate.tex b/Doc/texinputs/boilerplate.tex
index 9d216f3..61576e7 100644
--- a/Doc/texinputs/boilerplate.tex
+++ b/Doc/texinputs/boilerplate.tex
@@ -6,6 +6,6 @@
}
\date{\today} % XXX update before release!
-\release{2.2} % software release, not documentation
-\setreleaseinfo{+} % empty for final release
-\setshortversion{2.2} % major.minor only for software
+\release{2.3} % software release, not documentation
+\setreleaseinfo{a0} % empty for final release
+\setshortversion{2.3} % major.minor only for software