---
title: "POST /v1/projects/{project}/instances/{instance}/preCheckMajorVersionUpgrade"
method: POST
path: "/v1/projects/{project}/instances/{instance}/preCheckMajorVersionUpgrade"
tags: ["instances"]
---

# POST /v1/projects/{project}/instances/{instance}/preCheckMajorVersionUpgrade

`POST /v1/projects/{project}/instances/{instance}/preCheckMajorVersionUpgrade`

Execute MVU Pre-checks

## Path parameters

- `project` string, required
- `instance` string, required

## Request body

- InstancesPreCheckMajorVersionUpgradeRequest — Request for Pre-checks for MVU
  - `preCheckMajorVersionUpgradeContext` PreCheckMajorVersionUpgradeContext — Pre-check major version upgrade context.
    - `targetDatabaseVersion` 'SQL_DATABASE_VERSION_UNSPECIFIED' | 'MYSQL_5_1' | 'MYSQL_5_5' | 'MYSQL_5_6' | 'MYSQL_5_7' | 'MYSQL_8_0' | 'MYSQL_8_0_18' | 'MYSQL_8_0_26' | 'MYSQL_8_0_27' | 'MYSQL_8_0_28' | 'MYSQL_8_0_29' | 'MYSQL_8_0_30' | 'MYSQL_8_0_31' | 'MYSQL_8_0_32' | 'MYSQL_8_0_33' | 'MYSQL_8_0_34' | 'MYSQL_8_0_35' | 'MYSQL_8_0_36' | 'MYSQL_8_0_37' | 'MYSQL_8_0_39' | 'MYSQL_8_0_40' | 'MYSQL_8_0_41' | 'MYSQL_8_0_42' | 'MYSQL_8_0_43' | 'MYSQL_8_0_44' | 'MYSQL_8_0_45' | 'MYSQL_8_0_46' | 'MYSQL_8_4' | 'MYSQL_9_7' | 'SQLSERVER_2017_STANDARD' | 'SQLSERVER_2017_ENTERPRISE' | 'SQLSERVER_2017_EXPRESS' | 'SQLSERVER_2017_WEB' | 'POSTGRES_9_6' | 'POSTGRES_10' | 'POSTGRES_11' | 'POSTGRES_12' | 'POSTGRES_13' | 'POSTGRES_14' | 'POSTGRES_15' | 'POSTGRES_16' | 'POSTGRES_17' | 'POSTGRES_18' | 'POSTGRES_19' | 'POSTGRES_20' | 'SQLSERVER_2019_STANDARD' | 'SQLSERVER_2019_ENTERPRISE' | 'SQLSERVER_2019_EXPRESS' | 'SQLSERVER_2019_WEB' | 'SQLSERVER_2022_STANDARD' | 'SQLSERVER_2022_ENTERPRISE' | 'SQLSERVER_2022_EXPRESS' | 'SQLSERVER_2022_WEB' | 'SQLSERVER_2025_STANDARD' | 'SQLSERVER_2025_ENTERPRISE' | 'SQLSERVER_2025_EXPRESS' — Required. The target database version to upgrade to.
    - `kind` string — Optional. This is always `sql#preCheckMajorVersionUpgradeContext`.
    - `preCheckResponse` PreCheckResponse[] — Output only. The responses from the precheck operation.
      - `message` string — The message to be displayed to the user.
      - `actionsRequired` string[] — The actions that the user needs to take. Use repeated for multiple actions.
      - `messageType` 'MESSAGE_TYPE_UNSPECIFIED' | 'INFO' | 'WARNING' | 'ERROR' — The type of message whether it is an info, warning, or error.

## Response `200`

Successful response

---

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