Upgrade to Ruby 2.4.x
To facilitate code review, Ruby should be upgraded to the latest stable release of version 2.4 in a separate pull request. This version will not be deployed to production.
Closing, since we’ve decided to jump right to 2.6 without the in-between pull requests.
Ariana [9:34 PM]
(Interesting, the `key not found: :ciphers` error I’m getting locally is due to the version of `rest-client` required by `tire` not being compatible with Ruby 2.4.1 which we know doesn’t work anyway - I’ll stop messing about and install 2.3.x, just leaving this here in case someone else sees that error)