language: ruby
rvm:
  - 2.1.8
  - 2.2.4
  - 2.3.4
  - 2.4.1
sudo: false
env:
  - COVERAGE=true
branches:
  only:
    - master
notifications:
  email: false

language: ruby
rvm:
  - 2.1.8
  - 2.2.8
  - 2.3.5
  - 2.4.2
sudo: false
env:
  - COVERAGE=true
branches:
  only:
    - master
notifications:
  email: false

Update build matrix to use the latest patch for each Ruby version
Update build matrix to use the latest patch for each Ruby version
