What new dogmas were presented which were binding?
Lumen Gentium §21 contains a dogmatic definition of the sacramentality of the episcopate:
And the Sacred Council teaches that by episcopal consecration the fullness of the sacrament of Orders is conferred, that fullness of power, namely, which both in the Church's liturgical practice and in the language of the Fathers of the Church is called the high priesthood, the supreme power of the sacred ministry.
How do you reconcile this statement with what Cardinal Ratzinger said in 1988:
"The Second Vatican Council has not been treated as a part of the entire living Tradition of the Church, but as an end of Tradition, a new start from zero. The truth is that this particular council defined no dogma at all, and deliberately chose to remain on a modest level, as a merely pastoral council; and yet many treat it as though it had made itself into a sort of superdogma which takes away the importance of all the rest."
I was basing it on what Fr. Congar said. Ratzinger appears to have a different view: "We cannot find anything of such a nature in these texts… The passage which approaches closest to a dogmatic definition is the one which treats of the sacramental character of the bishop’s office – but as there is no indication of its origin in Revelation, we cannot look upon it as a statement of dogma, but rather as upon the expression of the Council’s unanimous viewpoint on a doctrinal matter…" (qtd. in Catholic Counter-Reformation Jan. 1972).