KubeVirt v1.8.1 is a maintenance release focused on operator-facing defect fixes. The available release information points to fixes for virt-handler domain-notify server restarts and VMExport failures involving long PVC names.
Source ↗Releases
AI-analyzed release notes for CNCF graduated and incubating projects.
A broad operator-facing feature and maintenance release with API and behavior changes, dependency updates, deprecations, and removals. Monitoring and configuration changes include recording-rule and feature-gate updates, alongside scheduling and security-related behavior changes; no security advisories are reported.
Check if affected (7)
breakingNetwork attachment definition get permissions in the
virt-controllerClusterRole, removedApplicability is not stated in the release notes.
Network attachment definition get permissions are removed from the
virt-controllerClusterRolewhen conditioned by a feature gate.breakingStop requests for paused VMIs, rejected
Applies if you run paused VMIs.
Stop requests for paused VMIs are rejected.
breakingThe
EnableVirtioFsConfigVolumesfeature, graduated to GAApplies if you use the
EnableVirtioFsConfigVolumesfeature gate.The
EnableVirtioFsConfigVolumesfeature has graduated to GA and no longer requires its associated feature gate to be enabled.- + 4 more on the release page
Plan ahead (4)
deprecatedThe
DisableMDEVConfigurationfeature gate, deprecatedremoval date not announcedApplies if you use the
DisableMDEVConfigurationfeature gate.The
DisableMDEVConfigurationfeature gate is deprecated ahead of removal in a future release.deprecatedThe
kubevirt_vmi_migration_data_total_bytesmetric, deprecatedApplies if you use the
kubevirt_vmi_migration_data_total_bytesmetric.The
kubevirt_vmi_migration_data_total_bytesmetric is deprecated in favor ofkubevirt_vmi_migration_data_bytes_total.deprecatedThe
MultiArchitecturefeature gate, deprecatedApplies if you use the
MultiArchitecturefeature gate.The
MultiArchitecturefeature gate is deprecated.- + 1 more on the release page
A maintenance release with operator-facing behavior fixes across backup handling, VMI updates, storage migration, and monitoring. It also updates the quiescing status indication used by KubeVirt.
Action needed (1)
breakingThe
QuiesceFailedindication replaced byQuiesceTimeoutThe
QuiesceFailedindication was replaced withQuiesceTimeout.
A maintenance release with a disclosed security fix, an indication rename for Windows VSS handling, and correctness, behavior, and observability updates. Most changes require no operator action beyond upgrading.
Action needed (1)
securityhighCVE-2025-47913 remediation
The release adds a replace directive that points
golang/x/cryptoto the patchedopenshift/golang-cryptomodule to remediate CVE-2025-47913.
Check if affected (2)
breaking
QuiesceFailedindication renamed toQuiesceTimeoutApplies if you use Windows VSS.
The release replaces the
QuiesceFailedindication withQuiesceTimeoutand adds a 60-second Velero pre-backup hook timeout to better handle Windows VSS limitations.breaking
DefaultVirtWebhookClient{QPS,Burst}values alignedApplicability is not stated in the release notes.
The release aligns the
DefaultVirtWebhookClient{QPS,Burst}values withDefaultVirtWebhookClient{QPS,Burst}to help avoid saturating the webhook client during mass eviction events.