This Christmas Ruby 2.5.0 was announced. It’s new and nice, but not everyone can move to the latest Ruby version right away. We found the method you can try Ruby 2.5.0 without installing it permanently! This is the tutorial on using Ruby 2.5.0 with Docker.
Docker makes it easy to run containers. And in this tutorial Docker is used for trying the features of the new version of Ruby. Go to the tutorial and try the new features included in Ruby 2.5.0.