Two factors led to the creation of three new forms of the epact in the Fifteenth and Sixteenth centuries. The first was the increasing error of computistical techniques, which led to the introduction of a new Julian epact around 1478, to be used for practical computations of the phase of the Moon for medical or astrological purposes. With the Gregorian reform of the calendar in 1582, two additional epacts came into use. The first was the Lillian epact, developed by Aloisius Lilius as an element of the ecclesiastical computations using the Gregorian calendar. The Lillian epact included corrections for the motions of the Sun and the Moon that broke the fixed relationship between the epact and the golden number. The second new epact was a simple adjustment of the practical Julian epact to account for the ten-day change produced by the Gregorian Calendar. 
Quite distinct from the classic Café de Paris sauce are various compound butters commonly referred to as Café de Paris butter. These typically contain a mixture of herbs, spices, and other condiments such as mustard , marjoram , dill , rosemary , tarragon , paprika , capers , chives , curry powder , parsley , shallot , garlic , Worcestershire sauce , and anchovies , all whipped into the butter. The resulting compound butter is shaped into a roll using aluminium foil and chilled. When the dish is served, a piece of the butter is sliced off and allowed to melt on the hot meat.