Changelog for pngcheck-extras-2.3.0-4.fc31.x86_64.rpm :

* Fri Nov 13 2020 Benjamin A. Beasley - 2.3.0-4- Fix buffer overflow (RHBZ #1897485)
* Wed Oct 28 2020 Benjamin A. Beasley - 2.3.0-3- Add _hardened_build macro for EPEL
* Wed Oct 28 2020 Benjamin A. Beasley - 2.3.0-2- Work around Makefile.unx not actually using LDFLAGS; this fixes hardened build (PIE)
* Thu Oct 15 2020 Benjamin A. Beasley - 2.3.0-1- Initial import (#1886858)