How about The Catechism of the Catholic Church (1994, revised 1997) on faith, evolution and science which states: 159. Faith and science: "...methodical research in all branches of knowledge, provided it is carried out in a truly scientific manner and does not override moral laws, can never conflict with the faith, because the things of the world and the things of faith derive from the same God. The humble and persevering investigator of the secrets of nature is being led, as it were, by the hand of God in spite of himself, for it is God, the conserver of all things, who made them what they are." (Vatican II GS 36:1) 283. The question about the origins of the world and of man has been the object of many scientific studies which have splendidly enriched our knowledge of the age and dimensions of the cosmos, the development of life-forms and the appearance of man. These discoveries invite us to even greater admiration for the greatness of the Creator, prompting us to give him thanks for all his works and for the understanding and wisdom he gives to scholars and researchers.... 284. The great interest accorded to these studies is strongly stimulated by a question of another order, which goes beyond the proper domain of the natural sciences. It is not only a question of knowing when and how the universe arose physically, or when man appeared, but rather of discovering the meaning of such an origin....
Paragraph 283 has been noted as making a positive comment regarding the theory of evolution, with the clarification that "many scientific studies" which have enriched knowledge of "the development of life-forms and the appearance of man" refers to mainstream science and not to "creation science".
Look at the Catechism again. Does it really say anything all that different or more “advanced” then Pius XII?
No.
Also, the use of the term “Creator” and “provided it is carried out in a truly scientific manner and does not override moral laws” show the authors and editors of the Catechism were hedging their bets.