SF_12.0, SF_12.1, SF_12.2, SF_13.0, SF_13.1, SF_13.2, SF_13.3, SF_14.0, SF_14.1, SF_14.2, SF_14.3 - https://www.progress.com/documentation/sitefinity-cms/configure-multi-regional-deployment

MultiRegSystemConfig2.xml

<?xml version="1.0" encoding="utf-8"?>
<systemConfig xmlns:config="urn:telerik:sitefinity:configuration" xmlns:type="urn:telerik:sitefinity:configuration:type" disableBackendUI="True" >
    <loadBalancingConfig>
        <replicationSyncSettings Enabled="True">
            <Transporter>
                <add ConnectionString="***************" Prefix="sf-replication" TypeName="Telerik.Sitefinity.LoadBalancing.Replication.RedisMessageTransporter" config:flags="1" />
            </Transporter>
        </replicationSyncSettings>
    </loadBalancingConfig>
</systemConfig>