Hello, I am evaluating the upgrade from 3.11.x to 4.0.x and as per CASSANDRA-14197 <https://issues.apache.org/jira/browse/CASSANDRA-14197> we don't need to run upgradesstables any more. We have tested this in a test environment and see that setting "-Dcassandra.automatic_sstable_upgrade=true" takes care of the upgrading sstables to the new format. Since my actual cluster has a very high data size and more datacenters, I would like to know the general guidance on the upgradesstables option. Is this option guaranteed to take care of upgradesstables or it's a best case scenario and expects the users to run the upgradesstables (as I see some posts still run upgradesstables for 4.x upgrade). If it's taken care of automatically, is there a way I can see the progress/ time it takes or does the user need not worry about how long it takes but can just proceed with the upgrade on all the data centers sequentially one after another?
Thanks in advance.
