Now we know why it has taken so long to come out--the PDF version is about 200 pages long! This is an extensive treatment!
For some perspective, the last major papal document on Scripture was Divino afflante Spiritu, which was released by Pius XII in 1943. Before that the two other major papal documents on Scripture were Leo XIII's landmark Providentissimus Deus (1893) and Benedict XV's, Spiritus Paraclitus(1920). All three of those documents were encyclicals. Again, today's new document is not.
So, today's document is an important milestone--it is the first major papal document on Scripture in 57 years! The last magisterial document which really dealt with Scripture in an extensive way was Dei Verbum (1965), which is one of the documents of the Second Vatican Council. So the last magisterial document treating Scripture extensively is 45 years old!
So today's document is historic! Keep your eyes glued to TheSacredPage.com. We'll have more on this soon!