Again, I am digging around looking for information on revisions of versions. The New American Bible has had several. It was published first in 1970. In 1986 the New Testament was revised. The Psalms were revised in 1991, I think making some gender changes in the language. In 2000(?) the New Testament and Psalms were revised for liturgical use. These changes will probably show up in the lectionary, though have not been included in a Bible. In 2009 a revised Old Testament is expected to be published (this last note was found here.
If you know of changes made in these various versions, please e-mail me or leave a comment here. When I find some, I will post them as well.