7.1 What's New in Oracle Exadata System Software Release 20.1.0 The following features are new for Oracle Exadata System Software Release 20.1.0: Exadata Secure RDMA Fabric Isolation Smart Flash Log Write-Back Fast In-Memory Columnar Cache Creation Cell-to-Cell Rebalance Preserves PMEM Cache Population Control Persistent Memory Usage for Specific Databases Application Server Update for Management Server Parent topic: New Features for Oracle Exadata System Software Release 20.x