The Updates forum is simply a place where mods, File of the Week Helpers, and Staff File Makers can link to recent files they've created, member files that they think deserve to be really looked at (file of the weeks), site-wide activities such as contests, and anything else that is deserving of the attention of the entire site.
There are no replies in this forum, just single topics. That way, every time you see that there's a new post here, you know there's something you should check out. It's our version of a home page. It's more or less just a portal to things you should be checking out. Though there's no replies allowed here, feel free to talk as much as you want in the linked-to places!
If you're new to r21freak and just happened to stumble here since it was the first thing at the top of the page, then I recommend you go here first instead.