---
title: "Database Migration Service release notes"
slug: "dms-releasenote"
tags: ["Database Migration Service", "DMS", "Release note", "release notes"]
updated: 2026-10-08T07:10:35Z
published: 2026-10-08T07:10:36Z
canonical: "guide.ncloud-docs.com/dms-releasenote"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Database Migration Service release notes

Available in VPC

 

Keep track of changes to the Database Migration Service user guide. The release notes include:

- New
  - Initial release
- Update
  - Added: New features
  - Changed: Feature enhancements
  - Fixed: Bug fixes
  - Deprecated: Feature deprecations or service shutdown
  - Miscellaneous: Documentation changes

Read on for detailed descriptions of each release.

### September 17, 2026

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | - Improved migration error guidance - Provides cause logs, cause/resolution guidance, and a troubleshooting guide link in the View Error popup. - Parallel data recovery for Standby Master and Slave in high availability configurations - Reduced importing run time | - [Database Migration Service troubleshooting](/docs/en/dms-troubleshoot) - [Migration Management](/docs/en/dms-migrationmanagement) |
| Update - Added | Support migration of the Source DB caching_sha2_password account | [Endpoint Management](/docs/en/dms-endpointmanagement) |

### July 23, 2026

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | Expansion of the migration data capacity limit (3 TB → 6 TB) | [Database Migration Service prerequisites](/docs/en/dms-spec) |

### June 25, 2026

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Added | Provided post-migration data consistency validation feature. | [Check table status](/docs/en/dms-migrationmanagement#%ED%85%8C%EC%9D%B4%EB%B8%94-%ED%98%84%ED%99%A9-%EC%A0%90%EA%B2%80) |
| Update - Changed | - Automatically adjusted myloader options when the source DB contains 5,000 or more tables. - Improved Test Connection Definer validation by excluding system accounts and schemas. | - [Migration Management](/docs/en/dms-migrationmanagement) - [Endpoint Management](/docs/en/dms-endpointmanagement) |

### April 23, 2026

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Added | Added the **[Skip replication errors]** feature during the Replication stage. | [Migration Management](/docs/en/dms-migrationmanagement) |
| Update - Changed | Allowed special character ($) in DB passwords when creating an endpoint. | [Endpoint Management](/docs/en/dms-endpointmanagement) |

### January 22, 2026

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | - Removed password length and special character restrictions for Source DB in Endpoint Management. - Restricted point-in-time recovery for Cloud DB for MySQL to times prior to completion or abnormal termination when deleting Database Migration Service tasks. - When a migration is abnormally terminated and then deleted, the Target DB Standby Master is always reinstalled. - Improved migration compatibility when the Target DB is Cloud DB for MySQL 8.4. | - [Migration Management](/docs/en/dms-migrationmanagement) - [Endpoint Management](/docs/en/dms-endpointmanagement) |
| Update - Added | When AWS RDS/Aurora is specified as the source, a mysqldump client that accounts for permission restrictions is applied automatically. | - [Migration Management](/docs/en/dms-migrationmanagement) - [Endpoint Management](/docs/en/dms-endpointmanagement) |

### July 17, 2025

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Added | Added optional features to select target DB for migration. | - |

### April 17, 2025

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | - Displayed the backup method and the number of threads selected by the user on the console. - Set the upper thread limit per server specification. | - |

### March 20, 2025

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | Upgraded to mydumper-0.17.2-19. | - |

### October 17, 2024

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Added | Display the progress status (Preparing/Completing/Deleting) on the task details page. | [Migration Management](/docs/en/dms-migrationmanagement) |
| Update - Changed | Upgraded to mydumper-0.16.3-6. | [Migration Management](/docs/en/dms-migrationmanagement) |

### July 23, 2024

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Miscellaneous | Provided troubleshooting guide. | [Database Migration Service troubleshooting](/docs/en/dms-troubleshoot) |

### June 20, 2024

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Added | Introduced mydumper in a multi-threaded backup method. | [Migration Management](/docs/en/dms-migrationmanagement) |

### August 22, 2023

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | - Output the details of permission insufficiency notifications during test connection. - Added a log_slave_updates configuration check item during test connection. | [Migration Management](/docs/en/dms-migrationmanagement) |

### May 25, 2023

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Added | - Added MariaDB to MySQL migration feature. - Improved collation defense logic during test connection. | [Migration Management](/docs/en/dms-migrationmanagement) |

### April 20, 2023

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Changed | - Improved Test Connection error message notifications. - Improved migration recovery speed. - Applied innodb_doublewrite ON/OFF settings. - Expanded application of innodb_flush_log_at_trx_commit setting. | [Migration Management](/docs/en/dms-migrationmanagement) |

### November 22, 2022

| Type | Change | Go to page |
| --- | --- | --- |
| Update - Miscellaneous | Reorganized user guide composition and content. | [Database Migration Service overview](/docs/en/dms-overview) |