language: ruby
rvm:
  - 2.1.10
  - 2.2.7
  - 2.3.3
  - 2.4.0

language: ruby
rvm:
  - 2.1.10
  - 2.2.7
  - 2.3.3
  - 2.4.0
  - 2.5.3
  - 2.6.0

Add 2.6 (and 2.5) to the build matrix
Add 2.6 (and 2.5) to the build matrix
