Upgrade druid from 0.20.0 to 24 version

Hi,

I’m using druid version 0.20.0 with 20 node in cluster and would like to upgrade to 24 version. Please let me the procedure or step by step to upgrade

Regards
LongNC

Aloha @aloha199x (LongNC),
Is this a production cluster you are planning on upgrading? Does this cluster have active ingestion in progress?
I’m trying to understand what your concern is before the upgrade?

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Thank you @vsevall
I have a lot of ingestion realtime task from kafka, i think maybe lost data. And in my cluster i seted up MiddleManager and Historical in same Node, how to rolling upgrade them in saparate ?