There are differences: the previous guidelines are very down on saturated fat, for example. But I feel like a lot of people are imagining that this is replacing the old food pyramid with the huge grain section at the bottom bigger than everything else, when that's been gone for over a decade.
Realistically I don't think these guidelines really have much effect at all, except maybe things like school lunch programs that may be downstream of them.
The literal food pyramid that’s printed god knows where and that is recommended in many countries due to US recommendations.
Have you been to the site OP linked?