Another change came in 2017 when group stage was expanded to 16 teams with whole competition being played in the one year (preliminary stage followed by group stage and later knock-out stage). Each of four groups was hosted by one of teams from the group meaning more countries and teams included. Group winners qualified for the semifinal stage. The semifinals and final were both played on home-away basis. Following success of 2017 season, OFC added quarterfinal round for 2018 edition, meaning the top two teams from each group qualified for the knock-out stage.