Actually SS will pay two benefits if both spouses have enough credits from their own work history. It will also pay benefits to disabled children independent of parents work history.
That hasn't changed. What was changed: a once obscure strategy that became popular for married couples:
I may have not have the exact details, but that's the gist of it. There were websites that would take all the information for both spouse's, and run through a simulation of all the possible scenarios and give you the one that yielded the largest total benefit.