  pynucastro is a python library that provides visualization and analyze
techniques to classify, construct, and evaluate nuclear reaction rates and
networks. It provides tools that allow users to determine the importance of
each rate in the network, based on a specified list of thermodynamic
properties. Additionally, pynucastro can output a network in C++ or python for
use in simulation codes, include the AMReX-Astrophysics simulation suite. We
describe the changes in pynucastro since the last major release, including new
capabilities that allow users to generate reduced networks and thermodynamic
tables for conditions in nuclear statistical equilibrium.
