Kubernetes 1.36 restores a lost guarantee for database backups

In Kubernetes v1.36 the VolumeGroupSnapshot API became generally available: a CSI driver makes one atomic snapshot across all application volumes selected by label selector. This restores the consistency group guarantee lost in the move from storage arrays to per-PVC snapshots and requires no application downtime. Velero already supports the new API.

• VolumeGroupSnapshot is GA with Kubernetes v1.36 (May 2026)
• One atomic snapshot across all volumes without app downtime
• Volumes are selected by label selector, not by listing PVCs
• Velero was among the first to move to the upstream group API