title: Does Ruby 2.2 Have Memory Issues on Heroku?
body: <p>Many people experienced issues with memory usage when switching their Rails app from Ruby 2.0 to Ruby 2.1 on Heroku. For example, see <a href="https://stackoverflow.com/questions/27102565/memory-usage-increase-with-ruby-2-1-versus-ruby-2-0-or-1-9">Memory usage increase with Ruby 2.1 versus Ruby 2.0 or 1.9</a>. Are these issues resolved with Ruby 2.2?</p>