Los Panchos

Without checking Wikipedia, I'm curious about Los Panchos. As a group, they've been around for many decades. There must have been many personnel changes over the years. Are they still performing as THE REAL Los Panchos, or have other groups sprung up, claiming to be the real thing....like the Platters in the US?

When we were in Cuba last October, one of the bartenders had dozens of Los Panchos numbers on his smartphone.