There has been a lot of confusion about this, but this is not true[1]. `find_by_xxx` and `find_by_xxx!` are not part of the deprecation. 1. http://edgeguides.r

There has been a lot of confusion about this, but this is not true[1]. `find_by_xxx` and `find_by_xxx!` are not part of the deprecation. 1. http://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.html#upgrading-from-rails-3-2-to-rails-4-0-active-record http://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.ht...