What's new in Red Hat OpenShift Virtualization 4.21

What's new in Red Hat OpenShift Virtualization 4.21 Simplified VM admin management Physical network creation user interface Virtual VM network creation wizard Red Hat OpenShift Lightspeed generative AI assistance Support for UI plugins for third-party integration Optimize your infrastructure Mitigate between clusters with zero downtime Change block tracking (Tech Preview) MIG vGPU support for VMs Expansion to Google Cloud Microsoft Windows Server Failover Cluster with multipath failover Networking enhancements Workload migration is now even faster More Resources Upstream project and community Become a certified specialist Red Hat OpenShift Virtualization Engine | Product Trial About the authors Courtney Grosch Peter Lauterbach More like this Modernize virtual machines on Google Cloud with Red Hat OpenShift Virtualization Beyond the move: Introducing the Virtualization Migration Assessment Expanded Keep exploring Browse by channel Automation Artificial intelligence Open hybrid cloud Security Edge computing Infrastructure Applications Virtualization Share Red Hat OpenShift Virtualization 4.21 is now Generally Available. The release of Red Hat OpenShift Virtualization 4.21 introduces new capabilities that simplify virtual machine (VM) management, enhance operational efficiency, and expand deployment flexibility across hybrid and multi-cloud environments. This release brings streamlined VM administration with multi-cluster management, guided networking configuration through new physical and virtual network creation workflows, and generative AI–powered assistance with OpenShift Lightspeed integrated directly into virtualization operations. Additional highlights include cross-cluster live migration with zero downtime, storage-agnostic incremental backups through change block tracking, MIG vGPU support for shared GPU resources, expanded availability on Google Cloud bare metal, and enhanced networking and high-availability capabilities for mission-critical workloads. Read below to learn more about this release. Managing VMs at scale often involves operational tasks that can slow teams down, introducing complexity. With simplified VM administrator capabilities, OpenShift Virtualization streamlines common lifecycle operations such as provisioning, configuration, and ongoing management directly within the OpenShift Console. Red Hat OpenShift Virtualization 4.21 includes new multi-cluster management capabilities and Advanced Cluster Management right-sizing recommendations that provide centralized visibility and operational control across multiple clusters, allowing administrators to manage VM workloads from a unified console. Configuring physical networking for VMs can traditionally require complex manual setup and deep networking expertise. With the new physical network creation interface, OpenShift Virtualization introduces guided workflows that simplify how admins can define and configure host-level networking directly within the UI. By simplifying network configuration, teams can accelerate deployments and reduce configuration errors. This is important when you're migrating workloads with specific networking requirements, because it helps ensure reliable connectivity from day one.