KubeVirt

v1.8.0Orchestration & Management

2026年3月25日リンクをコピー

KubeVirt v1.8.0 is a large release (1242 changes, 77 contributors) adding a new VM backup API, VMPool auto-healing, containerpath volumes, and multiple network/storage improvements with several breaking removals.

• breakingRemove SLIRP and Macvtap network bindings before upgrading

  Both core SLIRP and Macvtap bindings are completely removed in v1.8.0. If any VMs in your cluster use these bindings, they will break post-upgrade. Audit your VM specs now with a label/annotation query, migrate affected VMs to passt or bridge bindings, and validate in a non-prod environment before rolling this to production.

• breakingUpdate migration metrics in dashboards before upgrading

  kubevirt_vmi_migration_data_total_bytes is deprecated and will eventually be removed. If you have Grafana dashboards, Prometheus alerts, or recording rules referencing this metric, update them to kubevirt_vmi_migration_data_bytes_total now. Also note the vCPU recording rule rename from kubevirt_vmi_vcpu_count to vmi:kubevirt_vmi_vcpu:count — both need updating together.

• enhancementAdopt explicit feature gate disabling for tighter cluster governance

  You can now explicitly block feature gates via disabledFeatureGates in the KubeVirt config rather than relying on gates simply being absent. For clusters where you want to enforce that certain alpha/beta features stay off (e.g., in regulated environments), add them to the disabled list. This is particularly useful if you're managing KubeVirt configs via GitOps and want auditable gate enforcement.