As you have obviously noticed, we've had some serious issues over the past few days. We made core changes to our sites framework to optimize on load, and it seemed to do the opposite. For the last 72 hours we've been working very hard to determine the problem and get the site back to its former glory, and we're hopefully there now.
We've fixed as many bugs as we could, and have implemented several new features that we hope you'll enjoy. We have also had to tone down a few pages, such as the "Updated Files (New Versions)" page. It no longer shows the update type, or the version number, instead you just get to see what was actually updated.
If you run across any issues feel free to let us know, and have fun updating your files for the latest version of World of Warcraft :)