Pope Francis released a Motu Proprio entitled TRADITIONIS CUSTODES ("Guardians of Tradition") (and accompanying letter) on July 16, 2021 which has, for all intents and purposes, nuked the Traditionalist movement within the Catholic Church. Pope Francis has identified a cancer in the Church and he is taking drastic measures to excise it.
Pope Francis has completely abrogated Summorum Pontificum released by Pope Benedict XVI in 2007, as can be seen in the above quote. SP established two forms of the Mass: Ordinary Form (the Mass promulgated by Pope St. Paul VI in 1970) and Extraordinary Form (given to the Church by Pope St. Pius X at the time of the Reformation and revised by Pope St. John XXIII in 1962). Pope Francis has now decreed that there in only one form of the Mass. The Traditional Latin Mass is no longer considered a form of the Roman Rite:
Art. I. The liturgical books promulgated by Saint Paul VI and Saint John Paul II, in conformity with the decrees of Vatican Council II, are the unique expression of the lex orandi of the Roman Rite.
