It wasn't terribly different. Old apps are still recognizable as rails. It is just more polished now, and a few head scratchers have died off like RJS and compo

It wasn't terribly different. Old apps are still recognizable as rails. It is just more polished now, and a few head scratchers have died off like RJS and components, and a lot has been refined. The biggest differnces are probably the asset pipeline, bundler, and UJS. Production hosting was an absolute nightmare. I never did understand it. Thankfully, it got better quickly.