2007-03-14 Ruby 1.8.6, Rails 1.2.3 Ruby Rails http://www.ruby-lang.org/ja/news/2007/03/12/ruby-1-8-6-release/ http://weblog.rubyonrails.com/2007/3/14/rails-1-2-3-compatible-with-ruby-1-8-6-and-other-fixes 乗り遅れてるなあ。