Hello Visu,
Thank you for your excellent question. Yes, we have a [somewhat short] chapter devoted to the new features and migration concerns when moving from Spring Security 2 to Spring Security 3. Although we don't cover implementation of the individual new features in that chapter, we provide pointers to the other places in the book where these features are covered as part of the normal course of our coverage of the Spring Security 3 framework.
Packt has kindly made this chapter available on their web site here:
Migration to Spring Security 3. Note that the content was reformatted for the web site, so it's not as nicely laid out as the book, nor does it have the chapter references I mention, but it should give you the idea
Hope that answers your question!
Best,
Peter
Author, Spring Security 3 (the Book), Packt Publishing, 2010
SCJP, OCP