Yes. They introduced a thing several months (maybe a year now) ago which gives you five inboxes instead of one. There's one for Social that catches all the stupid emails social networking things send you. There's one for Promotions that catches commercial email (at least, whatever isn't spam-boxed instead). There's one poorly defined one called Updates which is supposed to be for receipts, statements, bills, and confirmations - email related to stuff you bought or business you are involved in, as opposed to Store X's weekly email which is in promotions. And one for Forums is meant to be email from mailing lists. There is also the Primary inbox for everything else, which is meant to be just the real email from friends and such after everything else goes into the other boxes.
This never worked well. The social filter is pretty good. But I am on one mailing list which ends up in Promotions about 2/3 of the time, despite my repeatedly telling GMail to deliver it to Forums instead, and despite the mailing list having no commercial content whatsoever. The filter for Updates is really whacked; anything can end up in here, and the stuff that should go here can end up in Forums, Promotions, or Primary instead.
The new thing sounds similar, but on steroids. More like using labels (which are GMail's equivalent of folders to file email into, except that emails can have more than one label and so the folders aren't exclusive), but letting Google determine the labels by itself. We'll see how good that works.