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Rails 2.3.6 tutorial upgrade

May 23, 2010 • posted by Michael Hartl

I've released a new version of the Ruby on Rails Tutorial book to bring it up to date with the recently released Rails 2.3.6. The differences are essentially cosmetic—amounting to little more than changing occurrences of '2.3.5' to '2.3.6'—but it's part of my commitment to change the tutorial as Rails itself changes. Readers shouldn't have any problems with the new version (at least, my test suite still passes), but please let me know if you run into any trouble.

Of course, the upgrade to Rails 3 will require more extensive changes to the book, and I plan to turn my full attention to that task soon. Expect to see a Rails 2.3.6 version of Chapter 12 drop some time this week, with an updated Rails 3 tutorial available around the same time that Rails 3 ships, probably around a month from now.

Michael Hartl

I’m Michael Hartl—author, educator, and entrepreneur. I’m probably best known as the creator of the Ruby on Rails Tutorial, a book and screencast series that together constitute one of the leading introductions to web development. Once called his “favorite book” by Wikipedia founder Jimmy Wales, the Ruby on Rails Tutorial currently has over 150 5-star reviews at Amazon. I’m also (in)famous for creating Tau Day and The Tau Manifesto, which have inspired an international movement dedicated to the proposition that “pi is wrong.” (For example, as a result of The Tau Manifesto, MIT releases their admissions decisions each year at “Tau Time” (6:28 p.m.), and typing tau/2 at Google yields 3.14159…) Finally, I’m a founder of Softcover, a publishing system and sales platform for technical authors, which among other things powers both The Tau Manifesto and the Ruby on Rails Tutorial.

I’m a graduate of Harvard College and have a Ph.D. in Physics from Caltech, where I studied black hole dynamics and was an award-winning instructor in theoretical and computational physics. I’m also an alumnus of Y Combinator, the entrepreneur program that has produced companies such as Dropbox and Airbnb. (Alas, my own Y Combinator startup was neither Dropbox nor Airbnb.)