  This paper presents the main features of a new and updated version of the
program PArthENoPE, which the community has been using for many years for
computing the abundances of light elements produced during Big Bang
Nucleosynthesis. This is the third release of the PArthENoPE code, after the
2008 and the 2018 ones, and will be distributed from the code's website,
http://parthenope.na.infn.it. Apart from minor changes, the main improvements
in this new version include a revisited implementation of the nuclear rates for
the most important reactions of deuterium destruction, H2(p,gamma)He3, H2(d,
n)He3 and H2(d, p)H3, and a re-designed GUI, which extends the functionality of
the previous one. The new GUI, in particular, supersedes the previous tools for
running over grids of parameters with a better management of parallel runs, and
it offers a brand-new set of functions for plotting the results.
