In an era of expanding conferences, the MAC is headed in the other direction.

In a press release issued Wednesday afternoon, the MAC announced that UMass will be leaving the conference following the completion of the 2015 football season. UMass has been a football-only member of the MAC for the past two seasons, with most of its other sports parked in the Atlantic 10.

Part of the contract between the MAC and UMass when it agreed to join the conference in April of 2011 was that, if the school was offered full membership, it could either accept or remain as a football-only member for two additional years if the offer was turned down. The MAC offered UMass full membership in February and the university declined, leading to the Minuteman’s departure after the next two football seasons.

The conference did not hide its disappointment in UMass’ decision.