What’s New in 4.22.0.0

Apache CloudStack 4.22.0.0 is a LTS release with 10 new features, around 15 improvements and more than 140 bug fixes since the 4.21.0.0 release. Some of the highlights include:

  • Enhanced Backup and Disaster Recovery

  • SSL Offloading for Load Balancers

  • Baremetal/MaaS Extension

  • CSI Driver for CKS

  • Console Access for Proxmox in Extensions Framework

  • VMware-to-KVM Migration Enhancements

  • Snapshot/Backup Schedule Listing

  • Per-Zone Console Proxy Configuration

  • Direct Volume Migrations by-passing Secondary Storage

  • Persistent domain for unmanaged KVM instances from CS

  • Support for User Data on System VMs

  • EL10 & OpenSUSE 15.6 Platform Support

  • Stronger Checksum Algorithm (SHA-512)

  • Enable KVM Volume and VM snapshot by default

  • Support XZ compression format for template registration with KVM

  • Support for Shared Filesystem on Networks with Config Drive

Known Issues

  • Starting 4.21 VM snapshots are supported for instances on KVM hosts. However, volume snapshots and VM snapshots cannot coexist. Restoring a volume snapshot will remove any existing VM snapshots and may lead to data loss. There is a UI issue where error messages in such scenarios may not clearly indicate the problem.

  • When managing and unmanaging UEFI-based VMs on KVM hosts, migration of such VMs may fail in certain scenarios. This typically occurs when a VM that was unmanaged and later re-imported is started on a different host and then migrated back to its original host. The migration fails because the VM domain still exists on the original host, resulting in a conflict. As a workaround, manually remove the old domain from the original host before attempting the migration again.

The full list of new features can be found in the project release notes at https://docs.cloudstack.apache.org/en/4.22.0.0/releasenotes/changes.html