RubyMine 8.5 EAP Build 144.3143
With the new build you may also run your app, tests, Rake tasks or any other run/debug configurations from a project list while indexing is still in progress:
More blog posts about the EAP features are coming soon. Please note that EAP builds are pre-beta software and may contain issues, which we ask you to report to our issue tracker.
The RubyMine Team