I don’t know when this went live, but it’s a welcome modification. The old site was really showing its age in design terms, it was a mess.
The new design has a much tidier header area, everything has been made clearer. The search bar now takes up far more of the screen, making it easier to locate and get to. The ‘go’ button has a nice colour contrast, the navigation in it’s entirety has been simplified and tidied massively, it’s leagues ahead of the old site in terms of ease of navigation. The clutter has gone.
Now, if they could use the same thinking on the areas of the site other than the header (and started using web standards properly) I’d be delighted.