A trapezoidal area behind each goal net has been introduced. The goaltender can play the puck only within the trapezoid or in front of the goal line; if the goaltender plays the puck behind the goal line and outside the trapezoidal area, a two-minute minor penalty for delay of game is assessed. The rule is unofficially nicknamed the "Martin Brodeur rule".
Since the 2013–14 season, the league trimmed the goal frames by 4 inches (10 cm) on each side and reduced the size of the goalies' leg pads..
Source : Wiki