I recently upgraded a rails 1.6 project to 1.2.2. I looked around rubyonrails.org and the apis and didn't find any reference on how to upgrade. I searched the web and found that "rake rails:update" should be called so I tried that with no luck. I then started poking around the project files and found the RAILS_GEM_VERSION property in environment.rb and changed it to 1.2.2 and ran rake again which appears to have worked.
Are these the proper steps to take when upgrading an existing Rails project? Does anyone know where this is actually documented? I'm new to rails and I'm assuming I overlooked some release notes or upgrade guide that you typically find bundled with a release.
Eric