CentOS

Hello.
Quick question.

I have customer running Centos 6.10, and is looking for a newer version of Samba. (> 4.5)
I did not see any newer versions of Samba in the CentOS mirror repository, only saw the version 4.2.10 in the os repo. Is this something I need to retrieve myself directly from samba.org?

Thank you.
Dawne

CentOS 6 only has samba 3. CentOS 7 has a version of samba 4 but I think it lacks functionality.