<p>Can i use different versions of cassandra in a single cluster? My goal is to transfer data from one DC(A) to new DC(B) and decommission DC(A), but DC(A) is on version 3.11.3 and DC(B) is going to be *3.11.7+</p>
<p>* I Want to use K8ssandra deployment with metrics and other stuff. The K8ssandra project cannot deploy older versions of cassandra than 3.11.7</p>
<p>Thank you!</p>

<p>K8ssandra itself is purposefully an &quot;opinionated&quot; stack, which is why you can only use certain more recent and not-known to include major issues versions of Cassandra.</p>
<p>But, if you already have the existing cluster, that doesn't mean you can't migrate between them.  Check out this blog for an example of doing that:  <a href="https://k8ssandra.io/blog/tutorials/cassandra-database-migration-to-kubernetes-zero-downtime/" rel="nofollow noreferrer">https://k8ssandra.io/blog/tutorials/cassandra-database-migration-to-kubernetes-zero-downtime/</a></p>
