On the other hand, making your software work with Ruby 1.9 is something you'll have to do anyway, sooner or later. As long as there are no release-critical bugs

On the other hand, making your software work with Ruby 1.9 is something you'll have to do anyway, sooner or later. As long as there are no release-critical bugs in Ruby-1.9 ... which I guess aren't, because otherwise I don't think Arch would provide them.