Fedora EPEL 7 and enabling devtoolset

Hi, I'm starting to hit more and more challenges in the OpenVPN 3 Linux project with the RHEL-7 GCC version (which is 4.8.5), especially when it comes to C++ building. I've tried to keep the project compatible with RHEL-7 as the oldest supported distro, but it is getting harder and harder. In addition to newer C++ standards making the development of the project easier. I do see that RHEL/CentOS 7 has the needed compiler versions in the devtoolset. I also stumbled across this blog post: <https://smoogespace.blogspot.com/2018/03/using-red-hat-developer-toolset-... But ... a) Is that blog post still relevant? I couldn't find anything in the Fedora packaging guidelines giving any further advice. b) By adding the devtoolset as a build dependency, is that enough? Will the final .rpm need anything else installed to function? Like a newer libstdc++? c) Which other traps may I be facing using a devtoolset for EPEL-7 builds? -- kin d regards, David Sommerseth