The Orthodox Church celebrates the Holy Maccabean Martyrs on August 1. The Roman Catholic Church includes them in its official list of saints, assigning them August 1 as their feast day. From the time of the Tridentine Calendar until 1960, they were mentioned through a commemoration within the feast of St. Peter ad Vincula. When, among other second feasts of a single saint, Pope John XXIII suppressed this feast of Saint Peter, the Maccabees continued only to be commemorated, but this time within the Mass of the feria.
What is believed to be the Maccabees' relics - kept in the Maccabees Shrine - is venerated in St. Andrew Church, Cologne, Germany.
Some continue to use this calendar of John XXIII, or indeed an older one, but the General Roman Calendar officially in force since 1969 has omitted this commemoration. The Holy Maccabees are still recognized as saints and martyrs, and as such may be venerated by all Catholics everywhere on their feast and at other times.