Add API v4.89.1 Changelog

Author: bbiggerr

src/content/changelog/4-89-1-2021-04-14.md

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+---
+title: '4.89.1: 2021-04-14'
+date: 2021-04-14T04:00:00.000Z
+version: 4.89.1
+changelog:
+  - API
+---
+
+### Changed
+
+- The VLANs List ([GET /networking/vlans](https://www.linode.com/docs/api/networking/#vlans-list)) beta endpoint description has been updated with the following:
+  - Clearer instructions on how to detach a Linode from a VLAN.
+  - A note that VLANs cannot be renamed.
+  - A note that VLANs cannot be manually deleted. VLANs that are not attached to any Linodes are automatically deleted within a short timeframe.
+
+### Fixed
+
+- A bug was fixed that prevented `public` purpose VLAN interfaces that weren't configured for eth0 from working. This bug has been fixed, and the request body descriptions for the `purpose` property have been updated accordingly for the following endpoints:
+  - Linode Create ([POST /linode/instances](https://www.linode.com/docs/api/linode-instances/#linode-create))
+  - Configuration Profile Create ([POST /linode/instances/{linodeId}/configs](https://www.linode.com/docs/api/linode-instances/#configuration-profile-create))
+  - Configuration Profile Update ([PUT /linode/instances/{linodeId}/configs/{configId}](https://www.linode.com/docs/api/linode-instances/#configuration-profile-update))
+
+- Previously, the Configuration Profile Update ([PUT /linode/instances/{linodeId}/configs/{configId}](https://www.linode.com/docs/api/linode-instances/#configuration-profile-update)) endpoint erroneously stated the `label` and `devices` properties as required and the `interfaces.purpose` property as optional. The `label` and `devices` properties are now stated as optional, while the `interfaces.purpose` property is now stated as required.