Originally Posted by ATOBTTR

Perhaps, but for the average person searching, a distinction without a major difference? If it's more accurate to say "DL.com now returning itineraries with layovers greater than 4 hours" then so be it, but point being that I'm seeing domestic itineraries returned with greater than 4 hour connection times right now. That wasn't the case, even with broken fares, when searching DL.com just a couple days ago even (as you note, you could still find such itineraries searching through other sites like ITA Matrix and even use the Book with Matrix to generate the code to book it via DL.com, or you could find such itineraries through other OTAs or build such itineraries via Multi-City booking but the standard booking tool wouldn't return such itineraries).