A recognitio from the Holy See following a vote from the US Bishops, was received allowing for a clarification that all the covenants God made with the Jewish people are fulfilled in Jesus Christ.
Don't think this is change is revisionist theology or fancy foot work on the part of the Holy See or the US Bishops. Rather, it is standard theology and it is what the Church has consistently taught for a very, very long time. The editors of the Adult Catechism slipped up by being a bit imprecise in their work, shall we say. Of course, the statement announcing the clarification notes that the Adult Catechism is a catechetical work and not a theological text. True enough, we know...but this rationalization is a bit much. Does that mean we have to check each and every fact in the second printing of the AC, too? The Bishops' Conference statement is here.