Yes, this similar language was used in many different docuмents of the time. Pope St Pius V wrote Quo Primum, but he turned around and revised his own docuмent a few years later! About 5 popes have revised Quo Primum since then, ending with the most recent, John XXIII. However, a revision is not the same thing as overturning the law, or making substantial changes. The language used at the end of the docuмent prohibits substantial, essential changes; it does not prohibit minor, non-essential revisions.
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The real question on Quo Primum is this: 1) Is this law still in force? 2) Did Pope Paul VI make Quo Primum null and void? The answers are "yes" and "no".
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Further questions and answers:
3) Did Paul VI have the right, and papal authority to make QP null and void? Yes.
4) Did he use this power to make QP null and void? No. Pope Benedict said in his "motu proprio" that QP was still in force.
5) Is Paul VI's Apostolic Constitution only a revision of QP? No, it is a new and separate law. +Benedict confirmed this in his "motu proprio".
6) Is then, the new mass a revision of QP? No, it is a new liturgy, separate from QP and separate from all of the 2,000 years of Church Tradition.
7) Is the Tridentine (i.e. from Trent) liturgy still allowed by QP? Yes, in perpetuity. This was confirmed by +Benedict's "motu" when he said the latin mass "was always allowed".
8) Is the Tridentine mass obligatory and commanded to be used by QP? Yes, under pain of sin.
9) Does Quo Primum allow any edits, revisions, additions or changes to the Tridentine liturgy? No. Unless authorized by the pope himself and only if non-essential.
10) Then is the new mass contrary to the law of QP, which does not allow any other rite to be used, except the Tridentine right? Yes, the new mass is a grave sin against QP's law.