Deploying Rails book

Hi all,

With the fast changing rails, it is always hard to know how up to date Ruby books are. As far as I could tell, Rails recipes is basically obsolete and Advanced Rails recipes is a better choice. But what about the Rails Deployment book from Pragmatic Bookshelf from May2008. Would you say it's still up to date?

Cheers,

It doesn't talk about mod_passenger, but is an excellent book for deploying using mongrel (alone or in cluster configuration) and it has many good tips.