I sync’d to the latest Rails code today to get the 1.0 RC2 version. The only issues I had were the ones mentioned in the documentation – rakefile and environment.rb major changes.
I did have to perform some editing to move forward my ActiveRecord patch for multiple databases, but that is to be expected when making that type of change.
My code is running as I expected, and it may even be performing better (I just haven’t got to the point of measuring it yet). I look forward to getting SwitchTower all setup with my virtual server farm in the near future.