mail_replica equivalent to replicator_host/replicator_port

[Laura Smith via dovecot]

Silly question but regarding https://wiki.dovecot.org/Replication, is the 
mail_replica parameter shown in the docs equivalent to replicator_host and 
replicator_port in 2.3.3 ?

2.3.3 doesn't seem to like the mail_replica param (and indeed doveconf -a 
doesn't show it as an option)

Thanks !