Errata

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The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By Corrected
Printed Page 57
Paragraph under heading "Stay Current"

URL http://dev/rubyonrails.org/timeline appears to be out of
date. https://rails.lighthouseapp.com/timeline seems to require
more than simple registration. Is there a good place to
find this now?

Note from the Author or Editor:
URL has changed since the publication of the book, and it looks like the Rails folks didn't redirect. The correct URL now is https://rails.lighthouseapp.com/projects/8994-ruby-on-rails.

 Mike Cannon 
Printed Page 150
Footnote

Footnote says: "...treat series of server response times as i.i.d. random variables."

What does 'i.i.d.' mean/stand for?

Note from the Author or Editor:
Change "i.i.d." to "i.i.d. (independent and identically distributed)"

 Anonymous 

"Advanced Rails covers quite a bit of territory, going for breadth rather than depth most of the time. Each chapter covers a classic, pivotal development concern..."
--Ben Munat, Slashdot.org