---
title: "Unpin Feature Compatibility Version for One Cluster in One Project"
method: POST
path: "/api/atlas/v2/groups/{groupId}/clusters/{clusterName}:unpinFeatureCompatibilityVersion"
tags: ["Clusters"]
---

# Unpin Feature Compatibility Version for One Cluster in One Project

`POST /api/atlas/v2/groups/{groupId}/clusters/{clusterName}:unpinFeatureCompatibilityVersion`

Unpins the current fixed Feature Compatibility Version (FCV). This feature is not available for clusters on rapid release.

## Path parameters

- `groupId` string, required
- `clusterName` string, required

## Query parameters

- `envelope` boolean
- `pretty` boolean

## Response `204`

No Content

## Other responses

- `400` — Bad Request.
- `401` — Unauthorized.
- `402` — Payment Required.
- `403` — Forbidden.
- `404` — Not Found.
- `409` — Conflict.
- `429` — Too Many Requests.
- `500` — Internal Server Error.

---

[API](https://skmtc.dev/mongodb/apis/atlas-admin-api.md) · [All operations](https://skmtc.dev/mongodb/apis/atlas-admin-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/mongodb/atlas-admin-api/revisions/e37e8ef8429f/schema)