The much-awaited instruction on the implementation of Summorum pontificum is titled (i.e,. begins with the words) Universae ecclesiae and will be released on Friday, and then on Saturday will appear in L'Osservatore Romano. It is significant that it is being made public on May 13 (first apparition of Our Lady at Fatima). May Our Lady of Fatima use this document ad laudem et gloriam nominis Dei, ad utilitatem quoque nostram, totiusque Ecclesiae suae sanctae!
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Link to the official announcement on the Vatican website.