Changelog for gdm-3.28.2-23.el7.i686.rpm :

* Wed May 06 2020 Ray Strode - 3.28.2-23- Support exotic keyboard layouts better Related: #1734143
* Tue Oct 29 2019 Ray Strode - 3.28.2-22- Fix PostSession on reboot too- Fix spew in log on shutdown Related: #1547158