What significant change occurred in the 1992 Barcelona Olympics regarding basketball?

The significant change that occurred in the 1992 Barcelona Olympics regarding basketball was the inclusion of professional players in the competition. This was the first time that the Olympics allowed professional athletes to participate, which notably transformed the basketball event. The decision to allow professional players led to the formation of the United States men's basketball team known as the "Dream Team," which featured some of the best players in the NBA. This had a profound impact on the sport, elevating its profile globally and showcasing a level of talent that had never been seen before in Olympic competition.

This shift marked a pivotal moment in Olympic history, as it set a precedent for allowing professional athletes from other sports to participate in future Games, thus changing the landscape of the Olympics in various disciplines.