manual.texi:

  Added note about new version numbers.
configure.in:
  Updated version number.

Sorry, bitkeeper keeps messing up.

Docs/manual.texi

@@ -49652,6 +49652,8 @@ find on the MySQL download page
 (@uref{http://www.mysql.com/downloads/}),
 this means that the version has not yet been released!
 
+@c Please don't add a new version here without also updating ../configure.in!
+
 @menu
 * News-4.0.x::                  Changes in release 4.0.x (Development; Alpha)
 * News-3.23.x::                 Changes in release 3.23.x (Stable)

configure.in

@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # The Docs Makefile.am parses this line!
-AM_INIT_AUTOMAKE(mysql, 4.0.2-alpha)
+AM_INIT_AUTOMAKE(mysql, 4.0.3-alpha)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10