The explanation of the main changes in the canonical process that Pope Francis made in the year 2015 is centered on the content of the Motu Proprio Mitis Iudex Dominus Iesus, for the reform of the processes in the Catholic Church of the Latin Rite. The report makes a reference to the fundamental motives of this procedural reform, the willingness to make shorter and free the processes, and above everything, to the most important changes: the new rules about the jurisdiction of ecclesiastical courts, the abolition of the automated appeal of the first ruling that reveals the nullity, the invalidity of the canonical marriage and, finally, in the new process called shorter „brevior” for certain very clear situations of nullity. Parole chiave: riforma, processo canonico, nullità matrimoniale, competenza, appello.