Is IronRuby Dead?

I am .Net programmer who is looking to branch out and possibly use some Ruby in my current and future web applications. Looking on the Iron Ruby Website the last release was nearly a year ago: March 13, 2011. No announcements have have been made on their website since that time either.

With all of this, a several questions come to mind:

1. Is IronRuby Dead?
2. If the project is dead, are there any alternatives that are integrated in .Net?
3. If it's alive, is it still an actively maintained project? Where can I find the most recent release?
4. Am I barking up the wrong tree? Should I leave ruby as just ruby and .Net as .Net, two separate entities never to meet in the same project?

I've seen questions regarding IronRuby on stackoverflow recently, so obviously folks are using it. I'm not sure if they're supporting legacy applications or doing new development work.

Pro-tip: developers hate making announcements. We're antisocial creatures. IronRuby was last committed to 5 days ago (as of the time of this post). So it's very much alive.

https://github.com/IronLanguages/main/tree/master/Languages/Ruby