The text of the hymns in the post-conciliar breviary is a great deal better than in the 1962 breviary; many texts have been restored to what they were before Urban VIII classicised them in the 1620s. So the new texts are in line with the Sarum and Benedictine usages of the Roman Rite. They are, many of them, in their original forms. But the coetus which redacted them in 1968 did make some alterations of its own'.
Disastrously, the coetus proposed to omit, in the Fifth Century Ascension hymn Aeterne rex, altissime, the glorious words 'culpat caro, purgat caro, regnat Deus Dei caro' ('flesh sins [in Adam], flesh cleanses [in Christ], God [the Son] rules [so what rules is] the flesh of God'. English Hymnal - i.e. the superb Anglican hymnographer J M Neale - renders it (141) 'That flesh hath purged what flesh had stained, and God, the flesh of God, hath reigned'). The coetus found these words 'vel obscuros vel nimio lusu verborum expressos': 'too much playing around with words'.
Fortunately, somebody stood up against this philistinism. and the lines survived; unfortunately, in a bowdlerised form: '...regnat caro Verbum Dei' ('flesh reigns, [which is] the Word of God'). This still slightly shies away from the divinely glorious boldness of saying (crisply and epigrammatically) that the God who reigns above the highest heavens is nothing other than the Flesh which the Incarnate Second Person assumed of that Palestinian Girl.