With the Decree Cum sanctissima of 22 February 2020, the Congregation for the Doctrine of the Faith, which since January 2019 deals with those matters formerly assigned to the Pontifical Commission "Ecclesia Dei", completed the work initiated several years earlier by that Commission in order to fulfill the mandate given by Pope Benedict XVI to facilitate the celebration of more recently canonized Saints according to the forma extraordinaria of the Roman Rite. Indeed, since the Sanctoral of the forma extraordinaria is determined by the liturgical books in force in 1962, Saints canonized thereafter were not included therein.