I'm paying for a VPS which is running CentOS 7.4:
# rpm --query centos-release
centos-release-7-4.1708.el7.centos.x86_64
# cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)
# uname -a
Linux vps1 2.6.32-042stab120.16 #1 SMP Tue Dec 13 20:58:28 MSK 2016 x86_64 x86_64 x86_64 GNU/Linux
I thought that CentOS 7 is based off of kernel 3.10.
I am fully updated according to yum.