Federer has since switched to a larger, 97 sq inch headsize racket for the 2014 season, and such the ProStaff line is expecting a major update in the design of the racket. Federer's new Prostaff removes the box beam in favor of a modern, angular beam. However, Wilson claims the same production and materials have been used in this racket line, blending the iconic Prostaff's graphite and kevlar blend with a modern design process. The new line of Prostaff is expected to be released fall 2014.