language: ruby
sudo: false
cache: bundler

services:
  - mongodb

rvm:
  - 2.2.8
  - 2.3.5
  - 2.4.2
  - 2.5.3
  - ruby-head

matrix:
  allow_failures:
    - rvm: ruby-head

language: ruby
sudo: false
cache: bundler

services:
  - mongodb

rvm:
  - 2.3.5
  - 2.4.3
  - 2.5.3
  - 2.6.0
  - ruby-head

matrix:
  allow_failures:
    - rvm: ruby-head

Test against 2.6.0 and remove support for 2.2.8
Test against 2.6.0 and remove support for 2.2.8
