hyperdisk-balanced-high-availability not available in 1.16.1

[lindeskar]

I created a bunch of PVCs using a StorageClass with hyperdisk-balanced-high-availability when running 1.31.6-gke.1064001.

After an upgrade to 1.32.2-gke.1297002 the same StorageClass now gives "invalid disk type" for newly created PVCs.

gcp-compute-persistent-disk-csi-driver:v1.14.2-gke.8 was running in 1.31.6 while we now see gcp-compute-persistent-disk-csi-driver:v1.16.1-gke.0 in 1.32.2.

GKE release notes from yesterday say the disk type is available in 1.33 - but I have clear evidence it's also available in 1.31! 🤯

Please help me understand why we see this regression from 1.14.2. 🙏