chore(main): release v1.64.0

[hcloud-bot]

Primary IPs assignee_type behavior change

When creating a Primary IP with the primary-ip command, the --assignee-type flag will be required together with the --assignee-id flag. Using the default value (server) for the --assignee-type flag is deprecated. Consider explicitly setting the --assignee-type flag.

As of 1 August 2026, the behavior of the Primary IP assignee_type property will change, and will return unassigned when the Primary IP is not assigned (when assignee_id is null). The goal is to eventually assign Primary IPs to other resource types, not only to server.

See the changelog for more details.

In addition, the Primary IP request body assignee_type property of the operation POST /v1/primary_ips is now optional. Primary IPs created without assignee_type return server until 1 August 2026, after this date, its value will be unassigned.

See the changelog for more details.

Features

• primary-ip: --assignee-type is optional when creating a Primary IP (feat(primary-ip): --assignee-type is optional when creating a Primary IP #1395)

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Release Notes

Prefix / Start

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### Primary IPs `assignee_type` behavior change

When creating a Primary IP with the `primary-ip` command, the `--assignee-type` flag will be required together with the `--assignee-id` flag. Using the default value (`server`) for the `--assignee-type` flag is deprecated. Consider explicitly setting the `--assignee-type` flag.

As of 1 August 2026, the behavior of the Primary IP `assignee_type` property will change, and will return `unassigned` when the Primary IP is not assigned (when `assignee_id` is `null`). The goal is to eventually assign Primary IPs to other resource types, not only to `server`.

See the [changelog](https://docs.hetzner.cloud/changelog#2026-04-27-primary-ips-will-return-unassigned) for more details.

In addition, the Primary IP request body `assignee_type` property of the operation [`POST /v1/primary_ips`](https://docs.hetzner.cloud/reference/cloud#tag/primary-ips/create_primary_ip) is now optional. Primary IPs created without `assignee_type` return `server` until 1 August 2026, after this date, its value will be `unassigned`.

See the [changelog](https://docs.hetzner.cloud/changelog#2026-04-27-primary-ips-make-assignee_type-optional) for more details.

Suffix / End

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