It's a permanent change, but it's also in the process of being updated
We've moved to a new Content Management System. We haven't finished entering all of data, and there are some sections that are new and we have to add things to them (like the new glossary). But everything that was there before will still there. The drop down menu should make it easier to navigate.
We also welcome suggestions, so if you have any problems using it, please let us know so we can check on it. If there's anything you think would be a good addition to the site, please let us know