VATICAN CITY — Pope Benedict XVI has approved a document that relaxes restrictions on celebrating the Latin Mass used by the Roman Catholic Church for centuries until the modernizing reforms of the 1960s, the Vatican said Thursday.

Benedict discussed the decision with top officials in a meeting on Wednesday and the document will be published in the next few days, the statement said. The meeting was called to "illustrate the content and the spirit" of the document, which will be sent to all bishops accompanied by a personal letter from the pope.

The decision comes after months of debate. Some cardinals, bishops and Jewish leaders have opposed any change, voicing complaints about everything from the text of the old Mass to concerns that the move will lead to further changes to the reforms approved by 1962-65 Second Vatican Council.

The 16th century Tridentine Mass was sidelined by the New Mass that followed the council. The reforms called for Mass to be said in local languages, for the priest to face the congregation and not the altar with his back to worshippers and for the use of lay readers.

To celebrate the Latin Mass now, a priest must obtain permission from the local bishop. Church leaders are anxiously awaiting the details of Benedict's decision, to see how far he will go in easing that rule.

Benedict's move is widely seen as an attempt to reach out to the ultra-traditionalist Society of St. Pius X.