I have a cluster that has ES 6.8.15 install and see that 6.8.18 is there to upgrade to. This should be a straight forward upgrade correct. Everything is currently working in our cluster, but I wanted to make sure there were no gotchas that I’m overlooking before updating. Eventually, we will move to 7.x but that another day update.
Also, just for my knowledge. Let’s say I have my current nodes at 6.8.15 and add a new node that’s at 6.8.18… Will that break the cluster cause one node is at a higher version?
Also, to upgrade, I should be able to simply upgrade the nodes and reboot the cluster correct (I don’t have to do a rolling upgrade, I can bring it down temporarily). Is my thinking correct?