Now you're even excommunicating people, Papa?
Pope Pius IV’s Bull Benedictus Deus (26 January 1564). The Bull, which confirms the decrees of the Council of Trent, imposes a latae sententiae (automatic) excommunication on anyone who, without the approval of the Holy See, presumes “to publish in any form any commentaries, glosses, annotations, scholia on, or any kind of interpretation whatsoever of the decrees of this council.”
There ya go, Ladi!