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update the index.md for 5.3 #838

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Nov 25, 2021
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update the index.md for 5.3 #838

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1 change: 1 addition & 0 deletions en/TOC.md
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- About DM
- [What is DM?](overview.md)
- [5.3 Release Notes](releases/5.3.0.md)
- Basic Features
- [Table Routing](key-features.md#table-routing)
- [Block and Allow Lists](key-features.md#block-and-allow-table-lists)
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9 changes: 1 addition & 8 deletions en/_index.md
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Expand Up @@ -8,17 +8,10 @@ aliases: ['/docs/tidb-data-migration/dev/']

[TiDB Data Migration](https://github.com/pingcap/ticdc/tree/master/dm) (DM) is a convenient data migration tool, which supports data migration from MySQL-compatible databases (such as MySQL, MariaDB, and Aurora MySQL) into TiDB. It can help to reduce the operation cost of data migration.

The latest stable version of DM is v5.3.

**What's new in DM 5.3:**

- Compact multiple updates on a single row into one statement and merge batch updates of multiple rows into one statement to make sure low-latency replication from MySQL to TiDB.
- Add [DM OpenAPI](open-api.md) to better maintain DM clusters (experimental).

**Notes**

- DM's GitHub repository has been moved to [https://github.com/pingcap/ticdc/tree/master/dm](https://github.com/pingcap/ticdc/tree/master/dm). You can go to the new repository to submit issues for follow-up feedback.
- The DM release schedule will be aligned with [TiCDC](https://docs.pingcap.com/tidb/stable/ticdc-overview), so its version number also keeps up with TiCDC. Since v2.1.0, the DM version number is changed to v5.3.0.
- As of DM v2.0, DM uses a TiDB-independent version number; after DM v2.0, DM uses the same version number as TiDB. Therefore, the next version of DM v2.0 is DM v5.3. There are no compatibility changes from DM v2.0 to v5.3, and the upgrade process is no different from a normal upgrade, only an increase in version number.

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1 change: 1 addition & 0 deletions zh/TOC.md
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- 关于 DM
- [什么是 DM？](overview.md)
- [5.3 Release Notes](releases/5.3.0.md)
- 基本功能
- [Table routing](key-features.md#table-routing)
- [Block & Allow Lists](key-features.md#block--allow-table-lists)
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5 changes: 0 additions & 5 deletions zh/_index.md
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[TiDB Data Migration](https://github.com/pingcap/ticdc/tree/master/dm) (DM) 是一款便捷的数据迁移工具，支持从与 MySQL 协议兼容的数据库（MySQL、MariaDB、Aurora MySQL）到 TiDB 的数据迁移。DM 工具旨在降低数据迁移的运维成本。

DM 最新稳定版本是 5.3，相比 2.0 版本支持了以下特性：

- 合并单行数据的多次变更，将点查更新合并为批量操作，实现以更低的延迟将数据从 MySQL 同步数据到 TiDB。
- 增加 [DM OpenAPI](open-api.md) 以更方便地管理集群（实验特性）。

**重要说明**

- 由于某些原因，DM 的 GitHub 仓库已移到 [https://github.com/pingcap/ticdc/tree/master/dm](https://github.com/pingcap/ticdc/tree/master/dm)。请到新的仓库提交问题，以获得后续反馈。
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