Shlee e326b0dda1 Upgrade CircleCI testing to Ruby 2.4-2.7 (#12800) ...

* Update config.yml

* Update Gemfile

2020-01-10 05:34:25 +01:00

..

config.yml

Upgrade CircleCI testing to Ruby 2.4-2.7 (#12800)

2020-01-10 05:34:25 +01:00