What version on Ubuntu should I run my Rails app on?

My host gives me a few choices when it comes to distros. I know I want to run Ubuntu, but What version will give me the best compatibility with a typi开发者_StackOverflow社区cal rails app and the usual libraries I'd be using with Rails.

I have these available to me:

• Ubuntu 8.04.2 LTS (hardy)
• Ubuntu 8.10 (intrepid)
• Ubuntu 9.04 (jaunty)
• Ubuntu 9.10 (karmic)

I'm tempted to just go with 9.10 just because its the newest... is that a good idea?

Because rails/ruby is a fairly rapidly moving platform, I'd recommend going with the latest (9.10).

If the LTS (long term support) aspect is important to you, the next one is out in April (10.04)

I can't imagine any reason to not to do so.. :)

You are still going to need to install a number of libraries regardless of your choice, so I would go with the newest version you have available.

Yes, just go with 9.10. That will give you the longest support period.