I guys,

I've read many posts about the issue, but still have some doubts aboute the procedure....

This is my environment:

I have a multiserver install in CentOS 6 64bits of Zimbra Community 8.0.3 with the following config:

Server 1:
zimbra-ldap
zimbra-mta
zimbra-snmp
zimbra-proxy
zimbra-memcached

Server 2:
zimbra-logger
zimbra-snmp
zimbra-store
zimbra-apache
zimbra-spell
zimbra-memcached

Server 3:
zimbra-snmp
zimbra-store
zimbra-apache
zimbra-spell
zimbra-memcached


My doubts in migrating to the network edition are:

1. Since CentOS is now a supported distro do I still need the "platform-override" parameter (the original installation of 8.0.3 needed that)?
2. Do I need to update all servers to the 8.0.7 Community Edtition before the migration to the 8.0.7 Network edition, or can I upgrade straight from the 8.0.3 community to the 8.0.7 network?
3. In which order should I update? Server 1 (the one with LDAP), Server 2 (the one with the logger), Server 3?
4. My certificates are auto-signed and are probably expired (more than one year), will there be any issue with that?

Any other tips?