---
title: "GET /v1/projects/{projectsId}/locations/{locationsId}/clusters/{clustersId}:fetchClusterUpgradeInfo"
method: GET
path: "/v1/projects/{projectsId}/locations/{locationsId}/clusters/{clustersId}:fetchClusterUpgradeInfo"
tags: ["projects"]
---

# GET /v1/projects/{projectsId}/locations/{locationsId}/clusters/{clustersId}:fetchClusterUpgradeInfo

`GET /v1/projects/{projectsId}/locations/{locationsId}/clusters/{clustersId}:fetchClusterUpgradeInfo`

## Request

- Base URL: `https://container.googleapis.com`
- URL: `https://container.googleapis.com/v1/projects/{projectsId}/locations/{locationsId}/clusters/{clustersId}:fetchClusterUpgradeInfo`
- Auth: one of:
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/cloud-platform`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/cloud-platform`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/container`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/container`
  - OAuth 2 and OAuth 2
    - Implicit: `https://accounts.google.com/o/oauth2/auth`
    - Scopes: `https://www.googleapis.com/auth/container.read-only`
    - Authorization code: `https://accounts.google.com/o/oauth2/auth`
    - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/container.read-only`

Fetch upgrade information of a specific cluster.

## Path parameters

- `projectsId` string, required
- `locationsId` string, required
- `clustersId` string, required

## Query parameters

- `version` string

## Response `200`

Successful response

- ClusterUpgradeInfo: ClusterUpgradeInfo contains the upgrade information of a cluster.
  - `autoUpgradeStatus` string[]: The auto upgrade status.
  - `endOfExtendedSupportTimestamp` string: The cluster's current minor version's end of extended support timestamp.
  - `endOfStandardSupportTimestamp` string: The cluster's current minor version's end of standard support timestamp.
  - `minorTargetVersion` string: minor_target_version indicates the target version for minor upgrade.
  - `patchTargetVersion` string: patch_target_version indicates the target version for patch upgrade.
  - `pausedReason` string[]: The auto upgrade paused reason.
  - `rollbackSafeUpgradeStatus` RollbackSafeUpgradeStatus: RollbackSafeUpgradeStatus contains the rollback-safe upgrade status of a cluster.
    - `controlPlaneUpgradeRollbackEndTime` string, google-datetime: Output only. The rollback-safe mode expiration time.
    - `mode` 'MODE_UNSPECIFIED' | 'KCP_MINOR_UPGRADE_ROLLBACK_SAFE_MODE': Output only. The mode of the rollback-safe upgrade.
    - `previousVersion` string: Output only. The GKE version that the cluster previously used before step-one upgrade.
  - `upgradeDetails` UpgradeDetails[]: The list of past auto upgrades.
    - `endTime` string, google-datetime: The end timestamp of the upgrade.
    - `initialEmulatedVersion` string: Output only. The emulated version before the upgrade.
    - `initialVersion` string: The version before the upgrade.
    - `startTime` string, google-datetime: The start timestamp of the upgrade.
    - `startType` 'START_TYPE_UNSPECIFIED' | 'AUTOMATIC' | 'MANUAL': The start type of the upgrade.
    - `state` 'UNKNOWN' | 'FAILED' | 'SUCCEEDED' | 'CANCELED' | 'RUNNING': Output only. The state of the upgrade.
    - `targetEmulatedVersion` string: Output only. The emulated version after the upgrade.
    - `targetVersion` string: The version after the upgrade.

## Changes

- **2026-11-03** `649eae563481`: 4 info
  - the security scope `https://www.googleapis.com/auth/cloud-platform` was added to the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/cloud-platform` was added to the endpoint's security scheme `Oauth2c`
  - the security scope `https://www.googleapis.com/auth/container.read-only` was removed from the endpoint's security scheme `Oauth2`
  - the security scope `https://www.googleapis.com/auth/container.read-only` was removed from the endpoint's security scheme `Oauth2c`

[Operation history](https://skmtc.dev/google/apis/container/changes/v1/projects/:projectsId/locations/:locationsId/clusters/:clustersId:fetchClusterUpgradeInfo/get.md)

---

[API](https://skmtc.dev/google/apis/container.md) - [All operations](https://skmtc.dev/google/apis/container/llms.txt) - [OpenAPI document](https://skmtc.dev/google/apis/container/revisions/649eae563481?raw)