 newly-created files, not within your existing code.
Your app will keep working, even if you haven't refactored code to use Octane's features yet.
Making new files in the Octane style is good place to start, but eventually you should refactor existing code so that your app follows one main programming model, not a mixture of Octane and Classic.
Following a refactoring plan will help with onboarding new developers, and minimize flipping back and forth between different versions of the Ember Guides.</p>
<p>Th