Bump version number; record 2.3 release date

Doc/whatsnew/whatsnew23.tex

@@ -3,7 +3,7 @@
 % $Id$
 
 \title{What's New in Python 2.3}
-\release{0.90}
+\release{1.00}
 \author{A.M.\ Kuchling}
 \authoraddress{\email{amk@amk.ca}}
 
@@ -11,8 +11,8 @@
 \maketitle
 \tableofcontents
 
-This article explains the new features in Python 2.3.  The 
-release date of Python 2.3 is currently scheduled for August 2003.
+This article explains the new features in Python 2.3.  Python 2.3 was
+released on July 29, 2003.
 
 The main themes for Python 2.3 are polishing some of the features
 added in 2.2, adding various small but useful enhancements to the core