Biblical canon
The "Nova Vulgata" does not contain some books that were included in the earlier editions but omitted by the Biblical canon promulgated by the Council of Trent. Those omitted books are the Prayer of Manasses, the 3rd and 4th Book of Esdras (sometimes known by different names: see naming conventions of Esdras), Psalm 151, and the Epistle to the Laodiceans.