You can do this with the pglogical extension. I asked a similar question about a week ago. — Jay Sent from my iPhone > On Jul 11, 2018, at 10:38 AM, Mariel Cherkassky <mariel.cherkassky@xxxxxxxxx> wrote: > > Hi, > I have in my company 3 postgresql nodes(v9.6) that are configured as one primary and 2 slaves. The repmgr tool is reponsible for the replication. I want to upgrade all the nodes to version 10.4. I know that PostgreSQL doesnt support streaming replication between different major versions. Did someone try this kind of upgrade without having any downtime ? > > Thanks , Mariel.
