chore(main): release v1.30.1

[hcloud-bot]

Datacenter Deprecation

The server.datacenter field is deprecated and will be removed from the API response after July 2026: https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters

To avoid a breaking change in HCCM, we decided to statically map from the old location names to the existing datacenter names for the topology.kubernetes.io/zone label. For new locations we will return the location name without a -dcxx suffix.

Deployments of hcloud-cloud-controller-manager that are not updated when the field is removed from the API will panic with the following error:

"Observed a panic" panic="runtime error: invalid memory address or nil pointer dereference" panicGoValue=""invalid memory address or nil pointer dereference""

We have published an RFC which details how we want to continue utilizing the labels topology.kubernetes.io/zone and topology.kubernetes.io/region: #1146 (comment)

Bug Fixes

• statically map deprecated datacenter names (fix: statically map deprecated datacenter names #1159)

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Release Notes

Prefix / Start

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### Datacenter Deprecation

The `server.datacenter` field is deprecated and will be removed from the API response after July 2026: https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters

To avoid a breaking change in HCCM, we decided to statically map from the old location names to the existing datacenter names for the `topology.kubernetes.io/zone` label. For new locations we will return the location name without a `-dcxx` suffix.

Deployments of `hcloud-cloud-controller-manager` that are not updated when the field is removed from the API will **panic** with the following error:

 "Observed a panic" panic="runtime error: invalid memory address or nil pointer dereference" panicGoValue="\"invalid memory address or nil pointer dereference\""

We have published an RFC which details how we want to continue utilizing the labels `topology.kubernetes.io/zone` and `topology.kubernetes.io/region`: https://github.com/hetznercloud/hcloud-cloud-controller-manager/issues/1146#issuecomment-3919929223

Suffix / End

This will be added to the end of the release notes.