Changelog for qt-qvfb-4.8.7-50.fc31.x86_64.rpm :

* Fri Jul 26 2019 Fedora Release Engineering - 1:4.8.7-50- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Sat Apr 20 2019 Rex Dieter - 4.8.7-49- re-enable javascript-jit
* Tue Apr 02 2019 Rex Dieter - 4.8.7-48- rebuild
* Fri Mar 22 2019 Than Ngo - 4.8.7-47- fixed #1691638 - CVE-2018-19872 qt: malformed PPM image causing division by zero and crash in qppmhandler.cpp
* Thu Feb 28 2019 Rex Dieter - 1:4.8.7-46- backport qforeach.patch from qt5- -no-javascript-jit on f30 to workaround gcc9 FTBFS for now
* Sat Feb 02 2019 Fedora Release Engineering - 1:4.8.7-45- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
* Fri Oct 19 2018 Kevin Kofler - 1:4.8.7-44- fix QAudio hardcoding hw:0,0 on ALSA1.1 (patch by Jaroslav Škarvada, #1641151)- disable OpenSSL 1.1 patch for F27, keep building against compat-openssl10 (It really does not make sense to switch over the F27 package at this point.)
* Fri Sep 21 2018 Owen Taylor - 1:4.8.7-43- Disable qtchooser for Flatpak builds