Updating Apache Druid across a cluster of many nodes

I have many nodes in my production cluster of Apache Druid.
All versions are 0.20.1.
If I update the cluster, node by node, to the latest version, will it be OK during the update?
Because it takes time updating each node. And I want to node, during the process of updating, is that OK for other nodes that are behind in version? Until they get updated too.

I know it MUST be ȮK, as the updating is not major but is MINOR. But still, I thought asking community might give more insight

Now, my question is that, is it possible for me

Relates to Apache Druid 0.20.1

You should be fine having nodes on different versions. You could follow the order recommended here:

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