What’s New in 4.21.0.0

Apache CloudStack 4.21.0.0 is a 4.21 Regular release with 15 new features, around 40 improvements and more than 150 bug fixes since the 4.20.1.0 release. Some of the highlights include:

  • CloudStack Extensions Framework and Orchestrate Anything extension, with built-in extensions for Proxmox and Hyper-V

  • GPU Integration with KVM in CloudStack (Technical Preview)

  • Netris Network Plugin Integration

  • Cloudian HyperStore Object Store Plugin Integration

  • CloudStack Kubernetes Service (CKS) Enhancements

  • Create Instance from Backup

  • Instance Lease (Automatic Stop/Deletion)

  • Backup and Object Storage Limits

  • Virtual Trusted Platform Module (vTPM) Support

  • Support for KVM on s390x (IBM Z and LinuxONE) architecture

  • Management Server Maintenance Mode

  • Incremental Volume Snapshots for KVM

  • File-Based Disk-Only Instance Snapshots with KVM

  • Reconciliation of VM and Volume Copy/Migrate operations for KVM agent

  • Storage Access Groups

  • Volume Allocation Algorithm Support

  • VMware to KVM migration improvements

  • Storage plugins - Ceph, PowerFlex, StorPool, Linstor related fixes and improvements

  • Several UI fixes and improvements, including Deploy Instance Form, Announcement Banner, etc

Known Issues

  • Usage data for Instance Backups does not update after the final backup of an Instance is deleted

The full list of new features can be found in the project release notes at https://docs.cloudstack.apache.org/en/4.21.0.0/releasenotes/changes.html