DocBook 5.1: The Definitive Guide

The following is from an Internet search that I did:

DocBook 5.1: The Definitive Guide
by Norman Walsh
Edited by Richard Hamilton
ISBN: 9780596805029, published in conjunction with XML Press. 
Version 1.4.9 for DocBook V5.1b8
Updated: 26 December, 2012
Copyright © 2010, 2011, 2012 Norman Walsh.

I ordered a copy of the DocBook 5: The Definitive Guide from Barnes & Noble. I received a copy with a Copyright of 2010. It has the same ISBN Number. But, I do not think that this copy has been updated (26 December 2012) to reflect the changes for version 1.4.9 for DocBook V5.1b8.

I am somewhat confused since I am new to DocBook! Can someone please clear this matter up for me.

I appreciate any and all assistance in this matter!

1 person has
this question