You can call the UpgradeDBInstanceEngineVersion operation to upgrade the major engine version of an ApsaraDB RDS for MySQL instance.

Note The fee that you must pay after the upgrade varies based on the instance types and storage types of the original instance and the new instance.

If the instance is a primary instance to which read-only instances or disaster recovery instances are attached, you must upgrade the major engine versions of the read-only instances or disaster recovery instances before you upgrade the major engine version of the primary instance.

Before you call this operation, make sure that the following requirements are met:

  • The instance is in the Running state.
  • The original instance runs RDS MySQL 5.6 or RDS MySQL 5.5.

You can call the UpgradeDBInstanceMajorVersion operation to upgrade the major engine version of an ApsaraDB RDS for PostgreSQL instance.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes UpgradeDBInstanceEngineVersion

The operation that you want to perform. The operation that you want to perform. Set the value to UpgradeDBInstanceEngineVersion.

ClientToken String No ETnLKlblzczshOTUbOCzxxxxxxxxxx

The client token that is used to ensure the idempotence of the request. You can use the client to generate the value, but you must make sure that it is unique among different requests. The token can only contain ASCII characters and cannot exceed 64 characters in length.

DBInstanceId String Yes rm-uf6wjk5xxxxxxx

The ID of the instance.

EngineVersion String Yes 5.7

The major engine version that the new instance runs. Valid values:

  • 5.7
  • 5.6
EffectiveTime String No Immediate

The time when you want the change to take effect. Valid values:

  • Immediate: The change immediately takes effect.
  • MaintainTime: The change is applied during the specified maintenance window. For more information, see ModifyDBInstanceMaintainTime.

Default value: Immediate.

Response parameters

Parameter Type Example Description
TaskId String 10254125

The ID of the task.

RequestId String 65BDA532-28AF-4122-AA39-B382721EEE64

The ID of the request.


Sample requests

&<Common request parameters>

Sample success responses

XML format

HTTP/1.1 200 OK

<?xml version="1.0" encoding="UTF-8" ?>
	<RequestId> 65BDA532-28AF-4122-AA39-B382721EEE64</RequestId>

JSON format

HTTP/1.1 200 OK

  "RequestId" : " 65BDA532-28AF-4122-AA39-B382721EEE64",
  "TaskId" : "10254125"

Error codes

For a list of error codes, visit the API Error Center.