apache · harikrishna-patnala · Nov 10, 2025 · Nov 7, 2025 · Nov 9, 2025 · Nov 10, 2025
diff --git a/source/_global.rst b/source/_global.rst
@@ -25,20 +25,20 @@
 
 .. Latest version systemvm template name
 
-.. |sysvm64-version|     replace:: 4.20.2
-.. |sysvm64-name-xen|    replace:: systemvm-xenserver-4.20.2-x86_64
-.. |sysvm64-name-kvm|    replace:: systemvm-kvm-4.20.2-x86_64
-.. |sysvm64-name-vmware| replace:: systemvm-vmware-4.20.2-x86_64
-.. |sysvm64-name-hyperv| replace:: systemvm-hyperv-4.20.2-x86_64
-.. |sysvm64-name-ovm|    replace:: systemvm-ovm-4.20.2-x86_64
+.. |sysvm64-version|     replace:: 4.22.0
+.. |sysvm64-name-xen|    replace:: systemvm-xenserver-4.22.0-x86_64
+.. |sysvm64-name-kvm|    replace:: systemvm-kvm-4.22.0-x86_64
+.. |sysvm64-name-vmware| replace:: systemvm-vmware-4.22.0-x86_64
+.. |sysvm64-name-hyperv| replace:: systemvm-hyperv-4.22.0-x86_64
+.. |sysvm64-name-ovm|    replace:: systemvm-ovm-4.22.0-x86_64
 
 .. Latest version systemvm template URL
-.. |sysvm64-url-xen|            replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.20.2-x86_64-xen.vhd.bz2
-.. |sysvm64-url-kvm|            replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.20.2-x86_64-kvm.qcow2.bz2
-.. |sysvm64-url-kvm-aarch64|    replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.20.2-aarch64-kvm.qcow2.bz2
-.. |sysvm64-url-vmware|         replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.20.2-x86_64-vmware.ova
-.. |sysvm64-url-hyperv|         replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.20.2-x86_64-hyperv.vhd.zip
-.. |sysvm64-url-ovm|            replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.20.2-x86_64-ovm.raw.bz2
+.. |sysvm64-url-xen|            replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.22.0-x86_64-xen.vhd.bz2
+.. |sysvm64-url-kvm|            replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.22.0-x86_64-kvm.qcow2.bz2
+.. |sysvm64-url-kvm-aarch64|    replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.22.0-aarch64-kvm.qcow2.bz2
+.. |sysvm64-url-vmware|         replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.22.0-x86_64-vmware.ova
+.. |sysvm64-url-hyperv|         replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.22.0-x86_64-hyperv.vhd.zip
+.. |sysvm64-url-ovm|            replace:: http://download.cloudstack.org/systemvm/4.20/systemvmtemplate-4.22.0-x86_64-ovm.raw.bz2
 
 .. Images
 

diff --git a/source/conf.py b/source/conf.py
@@ -24,9 +24,9 @@
 author = 'Apache CloudStack Project'
 
 # The short X.Y version
-version = '4.21'
+version = '4.22'
 # The full version, including alpha/beta/rc tags
-release = '4.21.0.0'
+release = '4.22.0.0'
 
 rst_epilog = """
 .. include:: /_global.rst 

diff --git a/source/releasenotes/about.rst b/source/releasenotes/about.rst
@@ -17,34 +17,40 @@
 What's New in |release|
 =======================
 
-Apache CloudStack |release| 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.
+Apache CloudStack |release| is a 4.22 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:
 
-• 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
+Support for NAS Backup & Restore with Ceph and Shared MountPoint
+Configurable backup and backup-schedule during instance deployment
+Instance creation from backup in another zone (DRaaS use-case)
+SSL offloading support in VR-based load balancers
+Baremetal support with built-in Canonical/MaaS extension
+Support for noVNC and External Console within the Extensions Framework, including built-in Proxmox extension
+VMware-to-KVM migration improvements
+Overview UI page and related APIs for scheduled snapshots
+Allow per-zone Console Proxy configuration
+Bypass secondary storage during the volume migration from one primary storage pool to another in the same cluster
+Make KVM domains persistent upon unmanaging them
+Support for userdata on System VMs - use case: rsyslog-based centralized logging for System VMs and VRs
+Support for EL10 (Oracle Linux, AlmaLinux, Rocky Linux, RHEL) and openSUSE 15.6 as Management Server and KVM host distributions
+Replace md5sum with sha512sum for improved security
+Support for CloudStack CSI driver to dynamically provision and manage the volumes and snapshots
+Enable KVM volume and VM snapshot by default
+Support xz format for template registration
+Support for shared Filesystem on Config Drive Networks
 
 Known Issues
 ------------
 
-• Usage data for Instance Backups does not update after the final backup of an Instance is deleted
+• 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/4.21.0.0/releasenotes/changes.html
+https://docs.cloudstack.apache.org/en/4.22.0.0/releasenotes/changes.html