This article, the preface of the document, says how "in the renewal of the Church, tasks of the greatest importance and of ever increasing difficulty" are being given to priests. So the document will speak in detail about the ministry and life of priests

How much of this document is still relevant 50 years later?

Recent articles like Don't mention the war  and Priests say 9 Masses a day - need to ordain married men show the urgent need for an update on "The Ministry and Life of Priests"

Jesus, please move the Vatican to face up to the situation of priests in 2012