SEPM Upgrade from 12.1.4 to 12.1.5 using SQL do I have to delete replication or not??

Hi I have read all the docs and its not clear do you have to delete replication before the upgrade if I am upgrading from 12.1.4 to 12.1.5 using a remote SQL server as the DB?

Or is it enough to just stop the service on my prod and DR servers and do the upgrade?

Some docs says you only have to delete replication on 11.x to 12.x but then all docs talk about enabling replication after the upgrade...

Any help ASAP would be great as I am doing the CR tonight!

Cheers,

Packetboy.