Typo in documentation, JBoss 4.2 is named instead of JBoss 5

typographical error

Administration And Configuration Guide for JBoss Version 5.

In chapter "What this Book Covers"

The primary focus of this book is the presentation of the standard JBoss 4.2 architecture components from both the perspective of their configuration and architecture.

By reading Doc for JBoss 5 I expect to see JBoss 5 and not 4.2