PHYLIPNEW includes programs to carry out parsimony, distance matrix methods, maximum likelihood, and other methods on a variety of types of data, including DNA and RNA sequences, protein sequences, restriction sites, 0/1 discrete characters data, gene frequencies, continuous characters and distance matrices. It may be the most widely-distributed phylogeny package, with about 29,000 registered users, some of them satisfied. It is third after PAUP* and MrBayes in the competition to be the program responsible for the most published trees. It has been distributed since October, 1980 and has celebrated its 30th anniversary, as the oldest distributed phylogeny package.