Gibraltar-Vatican Joint Issue
The Vatican City State issued its first stamps in 1929, the same year that it was established under the Lateran Treaties. It released its first joint issue in 1969. Joint issues of stamps by the Vatican and other countries were uncommon for most of the twentieth century. In 2000, the Vatican and Poland released a joint issue designed by Czeslaw Slania which commemorated the eightieth birthday of John Paul II. However, the early twenty-first century saw a substantial increase in joint issues. In 2003, a set released by the Vatican and Poland celebrated the twenty-fifth anniversary of John Paul II's pontificate. The following year, a joint issue of the same countries commemorated the pope's return visits to Poland. In 2005, five of the eleven stamp sets released by the Vatican were joint issues. There have also been joint issues with Germany since Benedict XVI became Pope. In 2011, the Vatican and Croatia released a joint issue which commemorated the tercentenary of the birth of Rugerius Boscovich (1711 – 1787).
Vatican City
On 22 February 2011, Pope Benedict XVI promulgated a new "Law concerning citizenship, residency and access" to Vatican City, which became effective on 1 March. It replaced the 1929 "Law concerning citizenship and residence". There are 16 articles in the new law, whereas the old law had 33 articles. It updated the old law by incorporating changes made after 1929, such as the 1940 granting of Vatican City citizenship, "durante munere", to the members of the Holy See's diplomatic service. It also created a new category, that of official Vatican "residents", i.e., people living in Vatican City; these are not necessarily Vatican citizens.