I want to upgrade my 3 node redis sentinel server groups and 6 node cluster server groups. There will be major version changes for both sides. For example, I have server groups with versions 5, 6 and 7 for seperate groups, I will upgrade them to 8. How should I do the order for these? Should I upgrade the slaves or masters first? When I tried to upgrade the major version before, the cluster status failed due to version mismatch. I came across your post while doing research. Can you help me with that? Thanks in advanve!