(VERSION): Add and use it where the the version

lispref/ChangeLog

+2001-10-17  Gerd Moellmann  <gerd@gnu.org>
+
+	* Makefile.in (VERSION): Set to 2.8.
+	(manual): Use `manual-21'.
+
+	* elisp.texi (VERSION): Add and use it where the the version
+	number was used.  Set it to 2.8.
+
+	* intro.texi: Likewise.
+
 2001-10-13  Eli Zaretskii  <eliz@is.elta.co.il>
 
 	* files.texi (File Name Completion): Document the significance of

lispref/intro.texi

@@ -4,6 +4,9 @@
 @c See the file elisp.texi for copying conditions.
 @setfilename ../info/intro
 
+@c Versino of the manual.
+@set VERSION 2.8
+
 @node Introduction, Lisp Data Types, Top, Top
 @comment  node-name,  next,  previous,  up
 @chapter Introduction
@@ -34,7 +37,7 @@ Lisp that have counterparts in many programming languages, and later
 chapters describe features that are peculiar to Emacs Lisp or relate
 specifically to editing.
 
-  This is edition 2.6.
+  This is edition @value{VERSION}.
 
 @menu
 * Caveats::             Flaws and a request for help.