This release mostly focus on extending the CI testing and restoring broken backward compatibility.
- Add CI test coverage for Rails 3-6 and Ruby 2.2-2.7 (#72) [@mberlanda]
- Add CI mysql test coverage (#74 #75 #76 #77) [@mberlanda]
- Restore rails < 5 mysql support (#78) [@mberlanda]
- Add CI postgresql test coverage (#79) [@mberlanda]