Hello everyone,
We welcome you to download the new RubyMine 4.0 EAP build!
There is no limit for better performance and our team is struggling for faster RubyMine all the time. But we are glad to announce the next build of RubyMine 4.0 EAP that is much faster than any previous one. And now we can not only talk about performance improvements but also show the numbers!
Take a look on benchmark results for ‘Inspect Code’ run on two example projects (Radiant and Diaspora). The results are the time, so the smaller the better:

As you can see RubyMine is now working significantly faster and subsequent runs are also better. But you can also become a little bit faster with the latest IDE additions, such as Go to Class by full class name and mnemonics for Go to Related Files. Find Usages function has also been improved.
For those who like to be on the cutting edge we are glad to say that compilation for CoffeeScript files is now available right from the IDE. Just run ‘Compile cofeescript file’ from the context menu and see the corresponding JavaScript code in the same window to compare:
More details and screenshots are available in the full changelog. We welcome you to try and tell us what do you think about it.
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Develop with pleasure!
JetBrains RubyMine Team

Is Ruby plugin updated as well?
Sergei, we’ll publish updated plugin version in next couple of days, most probably tomorrow.
Cool! How do you go to a class by full class name? I don’t see it in the Navigation menu, and Go to Class appears not to understand a namespace.
Xavier, Go to Class should understand full class name, it may need more letters of actual class you are looking for due to filtering mechanism limitations (for example, AR::B is not enough, but AR::Bas is good)
There is one important thing (at least for me) you haven’t mentioned in this post, a brand new colour picker which finally works as it suppose to and it allows to specify colours by copy and paste of the hex values.
The previous one was a total pain to use. Who these days is using RGB values to specify their editor colours ??
Very nice release!
Thanks for front-end improve.
Where did the alt+shift+n shortcut go? Supposed to be goto model/helper/view/test, now it does nothing. (mac osx) Disappeared from the menu as well.
Csaba, now it could be found in the menu Navigate->Related files (Ctrl+Alt+Home). We’re planning to get back Alt+Shift+N for that.
Thanks Tatiana!
I use that binding all the time, couldn’t you set an easier key combination? Or – can I configure that myself? Thanks!
Daniele, you can configure it yourself in Settings | Keymap. Just find the action Main menu->Navigate->Related File and add your own shortcut or change an existing one.
Praise allah! This is exactly the update I’ve been waiting for…you’ve already got a great product, except for the fact it was difficult to bear the slowness on our enormous project. Thanks for listening.
Thanks for the new release!
Just wanted if I am the only one that has the problem where when I run the server and then stop it it does not stop the ruby process which runs in the background. I have to open task manager to stop the ruby.exe process before I can ran the server inside rubymin
Maybe only in my case, but TAB button make wrong indentation (double sized).
Artem,
Could you please create an issue at the RubyMine issue tracker http://youtrack.jetbrains.net/issues/RUBY and specify for what files it occurs.