It is a new model for the Yugoslavs. Featured a bent bolt (M24 and M24/47s didn't), sight hood (M24s didn't), and the later ones started going for stamped parts instead of milled.

There was countries adopting new models of Mausers after that point as well such as the Brazilianicon M954. I personally wouldn't say when the final Mauser was adopted, as there is always some new variation that someone else could pull out.