Ruby 2.4.2 was released today which contains security fixes. When can we see this available in CircleCI builds?
Build-agent version 0.0.4188-9ab0127 (2017-09-14T11:51:16+0000)
Starting container circleci/ruby:2.4.2-node
image cache not found on this host, downloading circleci/ruby:2.4.2-node
Error response from daemon: manifest for circleci/ruby:2.4.2-node not found