title: New Cassandra nodes in cluster with different version
body: <p>I have a Cassandra cluster with 3 nodes running on v3.11.4</p>
  <p>I want to add 3 more nodes to this cluster. Now, Cassandra v4 is available so i have installed it on the new nodes.</p>
  <p>When i restart Cassandra, the new nodes are unable to join the cluster.</p>
  <p><strong>Error:</strong> There are nodes in the cluster with a different schema version than us</p>
  <p>I even tried added skip_schema options in jvm-server.options file but still the nodes could not join.</p>
  <p>Please help me how can i add the new nodes in the existing cluster. I want to keep v4 for new nodes so i don't have to update these when upgrading older nodes to v4.</p>