[maddinat0r]

The highest compiler version on CentOS 6 is gcc 4.4, which supports almost none of the C++11 features. Only CentOS 7 (gcc 4.7.x) has proper support for C++11. So only CentOS 7 can run this plugin and I also encourage every server owner to upgrade to CentOS 7 (if you are using CentOS 6 ofc), because not using C++11 features really sucks if you are a plugin developer.