January 2026 Patch 1 Release

This patch improves system reliability, enhances security, and fixes critical issues that affect Private Cloud Director operations. This includes support for self-hosted deployments.

Enhancements

Automatic Naming for Storage-Backed VM Volumes

Volumes created for volume-backed VMs are now automatically named using the VM name as a prefix (for example, <vm-name>-volume1). Previously, these volumes appeared without a name in the Storage page.

Upgrade Notes

• VM HA control plane deployment needs to be scaled down to 0 replicas to prevent inadvertent host evacuation during the host upgrade process.

• When the control plane is upgraded, but hosts are not, VM traffic may be impacted. Mixed-version environments may not function as expected due to the upgrade from OVN to Caracal. When the ovn-controller package is reinstalled, and the OVN controller process restarts, a brief VM traffic disruption, including transient packet drops, may be observed. Traffic recovers automatically once the service is back up and flows are reprogrammed. It is recommended to complete all host upgrades before validating workloads or testing network connectivity.

Bug Fixes

Infrastructure Management

• Resolved an issue where tenant creation failed with an HTTP 500 error in self-hosted deployments.

• Resolved an issue where network bridge connectivity was lost on hypervisor hosts after upgrading the operating system from Ubuntu 22.04 to 24.04.

• Resolved an issue with support bundle generation request timing out from the UI.

Networking Service

• Resolved an issue with allocation pool validation that incorrectly rejected valid IP ranges on subnets larger than /24 when the start address' last octet exceeded the end address' last octet across octets (for example, 10.0.0.100–10.0.255.50 in a /16 subnet).

• Resolved an issue causing available IP address counts for networks with allocation pools to be calculated using all IPs in the subnet, not only those within the defined pool. This caused counts to appear as negative and blocked VM creation even when allocation pool addresses remained available.

Compute and Image Service

• Resolved a boot failure on Ubuntu 24.04 that prevented UEFI-enabled VMs using the Q35 machine type (hw_machine_type=q35) from spawning due to KeyError: 'nvram-template' .

• Resolved an issue that caused cold migration failures for VMs configured with multiple GPU PCI passthrough aliases.

• Resolved an issue that caused cold migration of GPU-enabled VMs to fail with a PCI resource claim error on the destination host, even when sufficient GPU resources were available.

Known Issues and Limitations

• After a region-specific backup and restore operation on self-hosted deployment, the Image service becomes unavailable. VM creation is blocked until the Image service is restored.

• Running airctl start on a region resets all service deployment and StatefulSet replica counts to 1, reducing service availability and potentially causing unintended API outages on on-premises deployments. Avoid running airctl start on regions where HA replica counts have been configured.

• Some on-premises users experience errors when creating multiple snapshots concurrently due to database read conflicts.

The list of known issues and limitations noted in the January 2026 release of Private Cloud Director also applies to this patch release.