Debian question ...

[Michael Hipp]

From:
http://os.newsforge.com/article.pl?sid=04/11/23/1933211

"Installing new applications and configuring old ones in Debian 
GNU/Linux is a breeze. You do not have to worry about dependencies, 
library problems, or even former configuration files."

How does it handle custom-edited config files such that you don't have 
to worry about them? Is this true even across dist-upgrade?

Michael