Hi Berman,

You can find the latest supported ranges on our compute requirements.
For Cassandra, DataMiner is compatible with the 4.X ranges including both the 4.0 and 4.1 release branches.
For OpenSearch, DataMiner is compatible with the 2.X range.

If you no longer want to worry about those versions, you can also go for STaaS. Then you don't have to waste time and resources on building and maintaining storage, but you always have a cloud-native, scalable, secure and reliable storage available. More info here: Storage as a Service (STaaS) | DataMiner Docs