How do I update the config files?
As you install stuff, some packages are gonna bring in config files. These config files are important as they may have new settings for that package that need to be implemented. I stress that these config files are very very critical to pay attention to. You can change the entire outcome of your computer if you are not careful. Get to know your config files. There is several ways to handle these files, etc-update and dispatch-conf are probably the most popular ways of handling them. A gui for this, etc-proposals. Please handle these files with care. You can’t know these files enough.