Upgrading Rails 3.2 to Rails 5
<p>I have a Rails 3.2 project that has 30 models and about 20 controllers. It's not a super huge codebase and its pretty much an idiomatic Rails site.</p>

<p>Is there any advantage to just doing <code>rails new</code> and controller by controller, model by model, gem by gem just copy and pasting things in and getting everything running on a fresh Rails 5 instance?</p>

<p>I just see some pain trying to do an upgrade version by version. Is this a viable way to upgrade a project where I have written all the code and know the project well?</p>