The OT canon which they proclaimed is still found in Catholic Bibles today ... Church is not alone in accepting the Books which Protestants label as "Apocrypha." The Coptic, Greek and Russian ...
but that are in the Catholic Bible. In one quote from St. Augustine, he even lists the canon of the Old Testament and it includes the books that are considered apocryphal by Protestantism.
Other canons include other books. For example, the Ge'ez (Ethiopic) bible contains the much-prized Book of Enoch. Catholic bibles contain the Apocrypha. Other older bibles may contain other lost books ...