Hey folks :)
I am just in the process of upgrading my cluster from version 6 to 7.
The upgrade from 5 to 6 was quite easy, in adding the new nodes as replicas and then failing over.
For version 7 this does not seem to work. When I try to add the version 7 nodes to the cluster, it does only try a handshake and then removes the node again. tcpdump shows that connectivity is there though 🤔
Does anybody have experience with that upgrade path?