[Samba] Replication between 4.12 and 4.14

[Bastien]

Hello,

I'm currently having two Samba DC 4.12.15 with replication between them, 
on CentOS 7.

I'm planning to install two new DC on Red Hat 8 (or equivalent), with 
latest 4.14 version, to replace others.

I'm wondering if replication will works between the old ones and the new 
ones ?
Obviously I will then shutdown the olders.

My plan is :
- install two new Samba DC 4.14 on RHEL 8
- add the new DCs to domain and replication
- transfer FSMO roles to a new DC
- demote the two olders DC

Is this the correct procedure ?

Thanks in advance.

Regards,
Bastien