This slide lists deprecated and desupported features in Oracle Clusterware 21c.
Starting with Oracle Grid Infrastructure 21c, creation of new server pools is eliminated, and policy-managed databases are deprecated and can be desupported in a future release. Server pools will be migrated to the new Oracle Services feature that provides similar functionality.
With the introduction of Oracle Grid Infrastructure 21c, Domain Services Cluster (DSC), which is part of the Oracle Cluster Domain architecture, are deprecated and can be desupported in a future release.
Starting with Oracle Oracle Clusterware 21c , the integration of vendor or third party clusterware with Oracle Clusterware is desupported.
Member Clusters, which are part of the Oracle Cluster Domain architecture, are desupported. However, Domain Services Clusters continue to support Members Clusters in releases previous to Oracle Grid Infrastructure 21c.