language: ruby
rvm:
  - 2.2
  - 2.3
  - 2.4
  - 2.5

before_install:
  - gem install bundler

script: "script/cibuild"

notifications:
  email: false

cache: bundler
sudo: false

language: ruby
rvm:
  - 2.4
  - 2.5
  - 2.6

before_install:
  - gem install bundler

script: "script/cibuild"

notifications:
  email: false

cache: bundler
sudo: false

Upgrade ruby versions to 2.4 through 2.6
Upgrade ruby versions to 2.4 through 2.6
