Overall Status

Volume snapshotting has been a GA feature since Kubernetes v1.20.

Supported CSI Spec Versions

1.0-1.9

Minimum Kubernetes version

1.25

Recommended Minimum Kubernetes version

1.25

Container

Not available yet.

Urgent Upgrade Notes

(No, really, you MUST read this before you upgrade)

• The validating logic for VolumeSnapshots, VolumeSnapshotContents, VolumeGroupSnapshots, and
  VolumeGroupSnapshotContents has been replaced by CEL validation rules. The validating webhook
  is now only being used for VolumeSnapshotClasses and VolumeGroupSnapshotClasses to ensure
  that there's at most one class per CSI Driver. The validation webhook is deprecated and will be removed in the next release. (#1091, @leonardoce)

Changes by Kind

API Change

• Update API for group snapshots, easing the restore process. (#1068, @leonardoce)

Feature

• Adds support for ListSnapshots secrets (#252, @bells17)
• Adds validation rules into CRDs. Minimum required Kubernetes version is 1.25 for these validation rules. (#1073, @cici37)
• Link the snapshotted PVCs and the corresponding PVs in VolumeGroupSnapshot and VolumeGroupSnapshotContent to make restoring data easier. (#1069, @leonardoce)

Full Changelog

https://github.com/kubernetes-csi/external-snapshotter/blob/v8.0.0/CHANGELOG/CHANGELOG-8.0.md