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releases: add TiDB 5.4.0 release notes #8061

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releases: add TiDB 5.4.0 release notes
TomShawn Dec 27, 2021
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Merge branch 'master' into 5.4.0-release-notes
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2 changes: 2 additions & 0 deletions TOC.md
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Expand Up @@ -666,6 +666,8 @@
- 版本发布历史
- [发布版本汇总](/releases/release-notes.md)
- [版本发布时间线](/releases/release-timeline.md)
- v5.4
- [5.4.0](/releases/release-5.4.0.md)
- v5.3
- [5.3.0](/releases/release-5.3.0.md)
- v5.2
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207 changes: 207 additions & 0 deletions releases/release-5.4.0.md
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---
TiDB 5.4 Release Notes
---

# TiDB 5.4 Release Notes

发版日期:2022 年 x 月 x 日
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TiDB 版本:5.4.0

在 v5.4.0 版本中,你可以获得以下关键特性:

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+
+
+


## 兼容性变化

> **注意:**
>
> 当从一个早期的 TiDB 版本升级到 TiDB v5.4.0 时,如需了解所有中间版本对应的兼容性更改说明,请查看对应版本的 [Release Notes](/releases/release-notes.md)。

### 系统变量

| 变量名 | 修改类型 | 描述 |
| :---------- | :----------- | :----------- |
| | | |
| | | |
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| | | |

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### 配置文件参数

| 配置文件 | 配置项 | 修改类型 | 描述 |
| :---------- | :----------- | :----------- | :----------- |
| | | |
| | | |
| | | |

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### 其他

-
-
-
-

## 新功能

### SQL

- **功能 1**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

- **功能 2**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

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<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

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### 事务

- **功能 3**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

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<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

- **功能 4**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

### 安全

- **功能 5**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

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<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

### 性能

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- **功能 6**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

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<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

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### 稳定性

- **功能 7**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

## 高可用和容灾

- **功能 8**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

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### 数据迁移

- **功能 9**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

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<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

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### 问题诊断效率

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- **功能 10**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

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### TiDB 数据共享订阅

- **功能 11**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

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### 部署及运维

- **功能 12**
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<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

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<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

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<如果功能限制或此功能特定的兼容性问题,需要提及>

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[用户文档](/)

## 遥测

- **功能 13**

<功能描述 (功能是什么 + 能给用户带来什么好处 + 需要用户注意什么)>

<功能支持情况,告诉用户 TiDB 默认开始还是关闭此功能,如果默认关闭,如何开启>

<如果功能限制或此功能特定的兼容性问题,需要提及>

[用户文档](/)

## 提升改进

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## Bug 修复


4 changes: 4 additions & 0 deletions releases/release-notes.md
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Expand Up @@ -7,6 +7,10 @@ aliases: ['/docs-cn/dev/releases/release-notes/','/docs-cn/dev/releases/rn/']

TiDB 历史版本发布声明如下:

## 5.4

- [5.4.0](/releases/release-5.4.0.md)

## 5.3

- [5.3.0](/releases/release-5.3.0.md)
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1 change: 1 addition & 0 deletions releases/release-timeline.md
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Expand Up @@ -9,6 +9,7 @@ summary: 了解 TiDB 的版本发布时间线。

| 版本 | 发布日期 |
| :--- | :--- |
| [5.4.0](/releases/release-5.4.0.md) | 2022-x-x |
| [5.0.6](/releases/release-5.0.6.md) | 2021-12-31 |
| [4.0.16](/releases/release-4.0.16.md) | 2021-12-17 |
| [5.1.3](/releases/release-5.1.3.md) | 2021-12-03 |
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