12 May
2015
12 May
'15
10:48 a.m.
As mentioned here, code can be ported to Qt5 while retaining compatibility with Qt4: http://blog.qt.io/blog/2012/12/19/qt-5-0/
If/when we do port to Qt5, we should maintain compatibility with Qt4.
For example, RHEL 7 & CentOS 7 include Qt4, but not Qt5. Qt5 is available from EPEL, but EPEL makes Qt5 follow EPEL's rolling-release model. So to reduce risk to our users, we should keep the EL7 builds on Qt4.