Changelog for libpng-devel-1.6.34-2.3.i586.rpm :

* Sun Oct 29 2017 akien 2:1.6.34-1.mga6+ Revision: 1174795- Version 1.6.34
* Sun Mar 26 2017 akien 2:1.6.29-1.mga6+ Revision: 1094889- Version 1.6.29
* Fri Mar 24 2017 akien 2:1.6.28-1.mga6+ Revision: 1094709- Version 1.6.28
* Thu Dec 29 2016 tv 2:1.6.27-1.mga6+ Revision: 1078607- 1.6.27
* Wed Nov 02 2016 luigiwalser 2:1.6.26-1.mga6+ Revision: 1064761- 1.6.26
* Fri Sep 23 2016 luigiwalser 2:1.6.25-1.mga6+ Revision: 1055588- 1.6.25
* Thu Aug 18 2016 luigiwalser 2:1.6.24-1.mga6+ Revision: 1046920- 1.6.24
* Fri Jun 03 2016 luigiwalser 2:1.6.22-1.mga6+ Revision: 1020136- 1.6.22
* Mon Jan 25 2016 luigiwalser 2:1.6.21-1.mga6+ Revision: 927167- 1.6.21
* Mon Dec 07 2015 luigiwalser 2:1.6.20-1.mga6+ Revision: 908674- 1.6.20 (fixes CVE-2015-8472)
* Mon Nov 16 2015 luigiwalser 2:1.6.19-1.mga6+ Revision: 903695- 1.6.19 (fixes CVE-2015-8126)