Centos 7 updated kernel to kernel-3.10.0-862 using YUM

Within /etc/yum.repos.d, you should see a repo called CentOS-CR.repo which will be disabled. Set enabled to 1 and then yum list available | grep kernel and you'll see the kernel packages for 3.10.0-862.

After that, you can yum update or yum install kernel* to get the new kernel packages.

I just ran yum update on my Centos 7.4 text box and everything seems to be working okay with the usual tasks after 3.10.0-862 was installed.