Page "Roman Missal" Paragraph 5

Some corrections to Pope Pius V's text proved necessary, and Pope Clement VIII replaced it with a new typical edition of the Roman Missal on 7 July 1604.

( In this context, the word " typical " means that the text is the one to which all other printings must conform .).

A further revised typical edition was promulgated by Pope Urban VIII on 2 September 1634.