Ducs de Dijon have lost their license to participate in the 2017-18 due to financial problems. They will be relegated to Division 2 after also failing to meet the conditions to play in Division 1.

Dijon will be replaced in the league by Chamonix who, playing as Pionniers de Chamonix-Morzine last season, had been relegated at the end of last season. It seems that the Chamonix and Morzine-Avoriaz merger is over with Euro Hockey suggesting that Morzine-Avoriaz will compete in Division 3. Chamonix's place in Division 1 will be filled by Cergy Pontoise.

Mulhouse joins the Ligue Magnus after winning last seasons Division 1 competition.