Hi,

In message "Re: [ruby-core:32200] Ruby 2.0 Wish-list?"
    on Thu, 9 Sep 2010 11:49:06 +0900, Rocky Bernstein <rockyb / rubyforge.org> writes:

|Any plans for error messages in languages other than English?

For application internationalization, you can use gettext, etc.
But for Ruby itself, we have no plan, because:

  * for most of Ruby code use English words, so that we can expect
    programmers to recognize English messages.
  * allowing message switch make the interpreter more complex, and
    bloat.

							matz.