Update version numbers.

Doc/texinputs/boilerplate.tex

@@ -7,5 +7,5 @@
 
 \date{\today}			% XXX update before release!
 \release{2.3}			% software release, not documentation
-\setreleaseinfo{a0}		% empty for final release
+\setreleaseinfo{a1}		% empty for final release
 \setshortversion{2.3}		% major.minor only for software

Doc/texinputs/license.tex

@@ -51,7 +51,7 @@ direction to make these releases possible.
 
 \section{Terms and conditions for accessing or otherwise using Python}
 
-\centerline{\strong{PSF LICENSE AGREEMENT FOR PYTHON 2.2}}
+\centerline{\strong{PSF LICENSE AGREEMENT FOR PYTHON 2.3}}
 
 \begin{enumerate}
 \item