Rails does the code caching - it doesn't have anything to do with
Passenger. Why do you want code changes to be picked up? Are you doing
development? If so, you should switch to using the Rails development
environment. If you really want to do this in the production
environment (which is what Passenger runs by default), edit this line
in production.rb:
config.cache_classes = true
Set it to false. Doing this will make your website significantly
slower though.
-Dan
http://www.dcmanges.com/blog