Since the financial crisis of 2007-2009 and the subsequent sovereign debt crisis in Europe, the maintenance of financial stability has become a concern of a growing number of actors. Regulators around the world are now trying to monitor the development of so-called systemic risks and control through macro-prudential regulation. The objective of this presentation is to explain what is the macroprudential turn, how it has affected all regulatory bodies and particularly how it led to a reconfiguration of financial regulation in Europe to a paradigm shift.