language: ruby
rvm:
  - 2.1.10
  - 2.2.6
  - 2.3.3
script:
  - rspec spec
sudo: false

language: ruby
rvm:
  - 2.1.10
  - 2.2.6
  - 2.3.3
  - 2.4.0
script:
  - rspec spec
sudo: false

Add Ruby 2.4 as test target
Add Ruby 2.4 as test target
