On Github: https://github.com/geodynamics/pylith/releases
On Zenodo: All versions
Other:
pylith-1.8.0.tgz [2012-10-24]
Version 1.8.0
petsc-dev-pylith-1.8.0.tgz [2012-10-24]
pylith-installer-1.8.0-0.tgz [2012-10-24]
Installer for version 1.8.0-0. not available for download