Here is nice tutorial how to move your project from rails 1.2.x to 2.0

• upgrade the gems: http://wiki.rubyonrails.org/rails/pages/HowtoUpgrade

  • gem update --system

• http://macournoyer.wordpress.com/2007/10/28/moving-to-rails-20/
  • nice task to find the deprecated elements: “rake -T deprecated”, 10x!