rails/rails — comment on commit 80256abb39332dd49996b909d6f0413a15291a90
File: activesupport/lib/active_support/file_update_checker.rb line 55
By josevalim:

Which API from the file update checker are you using in your engines? What do you want to achieve? We should have a public API for whatever you want to do (via Rails.application or Rails::Engine) instead of changing the internals. FileUpdateChecker is an implementation detail.