The Holy See Press Office has released the following note (NLM translation):
Friday 13 May 2011 the Holy See Press Office will make public the Instruction Universæ Ecclesiæ by the Pontifical Commission Ecclesia Dei about the implementation of the Apostolic Letter "Motu Proprio data" Summorum Pontificum of H. H. Benedict XVI. The Instruction will be published in the afternoon edition of the Osservatore Romano, dated 14 May.
The text of the Instruction - in Latin, Italian, French, English, German, Spanish and Portoguese - will be at the disposal of accredited journalists from 10 a.m. on Friday 13 May, being under embargo until noon. Together with the text of the Instruction, an editorial note will be provided.