  We present the system for versioning two packages: the TAUOLA of tau-lepton
decay and PHOTOS for radiative corrections in decays. The following features
can be chosen in an automatic or semi-automatic way: (1) format of the common
block HEPEVT; (2) version of the physics input (for TAUOLA): as published, as
initialized by the CLEO collaboration, as initialized by the ALEPH
collaboration (it is suggested to use this version only with the help of the
collaboration advice), new optional parametrizations of matrix elements in 4-pi
decay channels; (3) type of application: stand-alone, universal interface based
on the information stored in the HEPEVT common block including longitudinal
spin effects in the elementary Z/gamma* -> tau+ tau- process, extended version
of the standard universal interface including full spin effects in the H/A ->
tau+ tau- decay, interface for KKMC Monte Carlo, (4) random number generators;
(5) compiler options.
