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Through several searches in the last few days regarding modularization of applications with Rails, I found vast material regarding Engines in Rails 3.x, but practically nothing referring to Rails 4. I asked for references to a friend and he told me that in version 4 of the framework, modularization shall be made exclusively through Gems. I found it kind of absurd, given the apparent ease that the Engines provide.
Question:
In Rails 4 the use of Engines takes place in the same way as its previous versions (3.x)?