Feel free to give it a go, comment through GitHub and of course contribute as you see fit.
Spree now works with Ruby 2.4.x, 2.3.x and 2.2 (>= 2.2.7)
Big thanks to all Spree contributors, supporters, developers, users. :-) You make the Rails Ecommerce world go round!
We have a community of 1600+ developers on Slack making it a great place to be, chat and learn more about upcoming Spree developments.
Yours Truly,
Spree Core Team