Bump version number.
diff --git a/Doc/texinputs/boilerplate.tex b/Doc/texinputs/boilerplate.tex
index 385ae8e..25cbe7b 100644
--- a/Doc/texinputs/boilerplate.tex
+++ b/Doc/texinputs/boilerplate.tex
@@ -7,5 +7,5 @@
 
 \date{\today}			% XXX update before release!
 \release{2.2}			% software release, not documentation
-\setreleaseinfo{a2}		% empty for final release
+\setreleaseinfo{a3}		% empty for final release
 \setshortversion{2.2}		% major.minor only for software