I was trying last couple of days to move my app from Rails v1.2.3 to the newest Rails v2.1.0. Without success.
The gem, ruby, rails update was successful immediately I could generate a new rails v2.1 test app an run it.
But the big problem was to port my existing rails app: some plugins are not compatible (yet) with v2.1 like ActiveScaffold and Simple Localization. After a couple of days trying, sitting on forums I’ve realized is better to wait for becoming my used plugins compatible with Rails v2.1 then restart porting.
