In #OracleSolaris 11.4.69, the default/etc/ssh/sshd_config file has added "Include /etc/ssh/sshd_config.d/*.conf" so you can just drop new config fragments in that directory via IPS/ansible/puppet/etc. instead of having to edit the existing configs. The equivalent was also done for the ssh_config file, if you need to do things like enable old algorithms to ssh to hosts running older ssh versions.