Bump version number.
diff --git a/Doc/Makefile b/Doc/Makefile
index bc435a3..fe188a4 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -66,7 +66,7 @@
# This is the *documentation* release, and is used to construct the file
# names of the downloadable tarballs.
-RELEASE=2.3a1+
+RELEASE=2.3a2
PYTHON= python
DVIPS= dvips -N0 -t $(PAPER)
diff --git a/Doc/texinputs/boilerplate.tex b/Doc/texinputs/boilerplate.tex
index c872482..d406c0d 100644
--- a/Doc/texinputs/boilerplate.tex
+++ b/Doc/texinputs/boilerplate.tex
@@ -7,5 +7,5 @@
\date{\today} % XXX update before release!
\release{2.3} % software release, not documentation
-\setreleaseinfo{a1+} % empty for final release
+\setreleaseinfo{a2} % empty for final release
\setshortversion{2.3} % major.minor only for software