A fair bit.  If you download the current version of the book online, it comes with an errata.  All errata from page 239 (1.0->1.1) through 244 (1.3 -> 2.0) are changes from the first edition to the second.

Sean


On Jun 30, 2013, at 7:43 PM, Robert Baruch wrote:

> What's different about the 2nd edition relative to the 1st?
> 
> --Rob
> 
> 
> On Sun, Jun 30, 2013 at 1:18 PM, Sean Luke <[log in to unmask]> wrote:
> Also:  If you're coming to GECCO, I'll be bringing a few copies to distribute at cost if you'd like one.
> 
> Sean
> 
> On Jun 30, 2013, at 4:09 PM, Sean Luke wrote:
> 
> > I am proud to announce "Essentials of Metaheuristics, Second Edition".
> >
> > This is significant update to the first edition of the book.  It is available as follows:
> >
> >       - Lulu.com (paperback)  for $20
> >               http://tinyurl.com/essentialslulu
> >
> >       - Amazon.com (paperback) for $25  --- DON'T BUY HERE YET
> >               Please take a few weeks before the second edition shows up on Amazon.
> >               In the meantime, the first edition will still be shown (don't buy that).
> >
> >       - Online for free as Online Version 2.0
> >               http://cs.gmu.edu/~sean/book/metaheuristics/
> >
> > About the Book
> > This is an open set of lecture notes on metaheuristics algorithms, intended for undergraduate students, practitioners, programmers, and other non-experts. It was developed as a series of lecture notes for an undergraduate course I taught at GMU. The chapters are designed to be printable separately if necessary. As it's lecture notes, the topics are short and light on examples and theory. It's best when complementing other texts.
> >
> > Sean Luke
> > George Mason University
> 
> 
> 
> -- 
> The Singularity is near.