fighters who changed their style over the years?

Im wondering which boxers have been successful by changing their style.? lets start. how many styles there are? all i know for now, are that there are: offensive or defensive fighters, their are aggressors or counter punchers, boxer or puncher, inside or outside fighters, textbook style or unorthodox, volume style or precision, head hunter or body puncher, knockout artist or points accumalator? i understand some fighter need to adjust their style to certain opponents, but lets say for the most part, they stood by a certain style for the long run until eventualy changin it up i know the most popular answers are: mayweather : early career, he was knocking guys out, throwing more punches, but later after moving up in weight, he became more counterpuncher boxer type. pacquio, : early he was very raw, throwing bombs after bombs, middle stage, he threw bombs in combos like grendae uzis, offense is defense type, but later, settled on boxer puncher, more tactful. any other boxers who evolve their game?