See https://github.com/geodynamics/pythia/commits/master for the complete log of changes made to Pythia/Pyre.
- Switch from CppUnit to Catch2 for C++ testing.
- Update Python requirement to version 3.8 or later.
Merged pythia and nemesis into a single repository.
- Moved MPI C source files to nemesis directory.
- Moved journal C++ files to libsrc/pythia/journal.
- Use autotools for build.
- Use --enable-mpi to turn on installing nemesis.
Updates for Python 3 compatibility. Requires Python 3.6 or later.