Here we are. RubyMine 4 release candidate is ready! We have fixed a couple of speed regression problems (thanks for your reports and snapshots sent to us) and have polished the release features a little bit more. You can also now choose a Rake task to launch it automatically before any of your run/debug configurations starts. So with this feature as the last one we definitely freeze the release version and focus on last fixes.
Expect the final release next week.
Develop with pleasure!
JetBrains RubyMine Team