Is My mu-plugins folder Now Redundant?

When I originally caught wind of wordpress mu and became a member here, I went crazy loading the majority of mu-plugins to my mu-plugin folder . You name it, its probably in there :slight_smile:

Now that WP has MU built in, is the mu-plugins folder now redundant?

The majority of the mu-plugins I originally installed I don't think I really use and if I do, they haven't been update for a while... certainly not since WP3

I want to reduce the clutter and update the essential (formerly) mu-plugins that I need. Is it simply a case of download the new version, delete the old mu-plugins version, upload the new version and network activate?

I know I'm not being specific here, but as a general guide can you please advise...?