From a press release issued by the FIM:

Road Racing World Championship Grand Prix
Decision of the Grand Prix Commission

The Grand Prix Commission, composed of Messrs. Carmelo Ezpeleta (Dorna, Chairman), Claude Danis (FIM), Sito Pons (IRTA), Takanao Tsubouchi (MSMA) and Paul Butler (Secretary), has unanimously approved the following modification to the Road Racing World Championship Grand Prix Regulations for immediate application:

Technical Regulations EExhausts

2.7.4.2 (new text) For safety reasons the exposed edge of the exhaust pipe outlet must be rounded to avoid any sharp edges.