There seems to be a never ending controversy regarding the status of the Second Vatican Council.
I extracted several paragraphs from some of the documents:
Bishops who teach in communion with the Roman Pontiff are to be revered by all as witnesses of divine and Catholic truth; the faithful, for their part, are obliged to submit to their bishops’ decision, made in the name of Christ, in matters of faith and morals, and to adhere to it with a ready and respectful allegiance of mind. This loyal submission of the will and intellect must be given, in a special way, to the authentic teaching authority of the Roman Pontiff, even when he does not speak ex cathedra in such wise, indeed, that his supreme teaching authority be acknowledged with respect, and sincere assent be given to decisions made by him, conformably with his manifest mind and intention, which is made known principally either by the character of the documents in question, or by the frequency with which a certain doctrine is proposed, or by the manner in which the doctrine is formulated.
Note: This document is called “Dogmatic Constitution of The Church, so it’s infallibility is obvious just by the title itself.
Each and all these matters which are set forth in this Decree have been favorably voted on by the Fathers of the Council. And We, by the apostolic authority given Us by Christ and in union with the Fathers, approve, decree and establish them in the Holy Spirit and command that they be promulgated for the glory of God.
The entire text and all the individual elements which have been set forth in this Constitution have pleased the Fathers. And by the Apostolic power conferred on us by Christ, we, together with the Venerable Fathers, in the Holy Spirit, approve, decree and enact them; and we order that what has been thus enacted in Council be promulgated, to the glory of God.
Each and all these matters which are set forth in this decree have been favorably voted on by the Fathers of the Council. And we, by the apostolic authority given us by Christ and in union with the Fathers, approve, decree and establish them in the Holy Spirit and command that they be promulgated for the glory of God.
The entire text and all the individual elements which have been set forth in this Declaration have pleased the Fathers. And by the Apostolic power conferred on us by Christ, we, together with the Venerable Fathers, in the Holy Spirit, approve, decree and enact them; and we order that what has been thus enacted in Council be promulgated, to the glory of God.
Pope Paul VI’s Closing Speech:
*At last all which regards the holy ecumenical council has, with the help of God, been accomplished and all the constitutions, decrees, declarations and votes have been approved by the deliberation of the synod and promulgated by us. Therefore we decided to close for all intents and purposes, with our apostolic authority, this same ecumenical council called by our predecessor, Pope John XXIII, which opened October 11, 1962, and which was continued by us after his death.
We decided moreover that all that has been established synodally is to be religiously observed by all the faithful, for the glory of God and the dignity of the Church and for the tranquillity and peace of all men. We have approved and established these things, decreeing that the present letters are and remain stable and valid, and are to have legal effectiveness, so that they be disseminated and obtain full and complete effect, and so that they may be fully convalidated by those whom they concern or may concern now and in the future; and so that, as it be judged and described, all efforts contrary to these things by whomever or whatever authority, knowingly or in ignorance be invalid and worthless from now on.*
Now, there is indeed a lot of controversy going on today and much if not all of it is blamed on the council itself. But it seems that while The Church is indeed more open to “renewal” and “revision”, like for example on The Sacred Liturgy, she did not advance the abuses that go on today in the NO Mass. It would seem that the current problem is not with the council but with people abusing the openness and humility with which the Church has expressed herself in this council.
From the documents of the council themselves we can deduce that they are infallible and demand obedience from everyone.
Ecumenism has been causing a lot of confusion so here is a good document about it which was declared as infallible by the current Pope:
Have a good one and God Bless,