Facilitating the spread of knowledge and innovation in professional software development



Choose your language

InfoQ Homepage News IronRuby 1.0 Released

IronRuby 1.0 Released


Three years after the first official announcement it's done: IronRuby 1.0 has been released.

IronRuby 1.0 is compatible with Ruby 1.8.6. According to current plans, 1.0 will be the last IronRuby version to support 1.8.x; starting with the IronRuby 1.1, the IronRuby team will target Ruby 1.9.x

How compatible is IronRuby 1.0 to Ruby? shows the latest test run results. The answer to the big question is "Yes" - IronRuby runs Rails up to version 2.3.5.

One issue right now with only supporting 1.8.6: Rails 3 won't run because it requires Ruby 1.8.7 or Ruby 1.9. Since the final release of Rails 3 is a few months away, that shouldn't be a major issue just yet, particularly since the IronRuby 1.x stream will gain Ruby 1.9 features soon.

One new way to use IronRuby is on Microsoft's upcoming Windows Phone 7 platform, which is programmed with Silverlight. Tomas Matousek shows how to use IronRuby on Windows Phone 7, and also explains some of the limitations. One issue is the lack Reflection.Emit on the Windows Phone 7 version of Silverlight - which means IronRuby can't JIT Ruby code. The only way to run IronRuby programs is to always run in the interpreter, which isn't going yield the best performance. This issue is similar to JRuby on Android, which also has to run in interpreter-only mode on Android.

A look at proposed IronRuby projects for the Ruby Summer of Code shows some of the areas where work is needed to improve IronRuby or its library and tool support.

For more information on IronRuby, IronRuby team member Jimmy Schementi's blog is a good starting point, as well as InfoQ's IronRuby tag.

Rate this Article


Hello stranger!

You need to Register an InfoQ account or or login to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Community comments

  • IronRuby 1.0 and Rails 3

    by Jörg W Mittag,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    There's a good chance that future maintenance releases of IronRuby 1.0 might run Rails 3. Even though IronRuby implements Ruby 1.8.6 and Rails 3 requires Ruby 1.8.7, Rails doesn't actually use every feature of Ruby 1.8.7. It's possible that the subset of 1.8.7 features Rails actually uses will be implemented in a future maintenance release of IronRuby 1.0, guarded by a commandline switch. There's been some discussion about this on the mailinglist and the IronRuby maintainers are open to that idea. (Especially if someone else does the actual work of writing the patches ...)

  • Re: IronRuby 1.0 and Rails 3

    by Werner Schuster,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    Looking at the mailing list discussions (the ones I linked to), I gathered that any 1.8.7 or 1.9.x changes would only come in the 1.1 stream, ie. not in maintenance releases of 1.0.

  • Tutorial on running on IIS without installing Ruby first

    by Jeremy Durham,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    I'd love to see *the* definitive article on deploying a Rails 2.3.x app to IIS without first having to install Ruby on the box. Something akin to warbler, where you can run a rake task, and your app is fully packaged into something that runs on IIS. Is the article out there already? It is a pipe dream? If so, what will it take to make that a reality?

  • Re: IronRuby 1.0 and Rails 3

    by Jörg W Mittag,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    You're right. I completely mis-interpreted the second half of that thread. Wishful thinking, I guess!

    Sorry for the confusion. Is there any way to delete or edit comments?

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p


Is your profile up-to-date? Please take a moment to review and update.

Note: If updating/changing your email, a validation request will be sent

Company name:
Company role:
Company size:
You will be sent an email to validate the new email address. This pop-up will close itself in a few moments.