xixirangrang

tiup: add a ref to limitation on users operation during upgrade using tiup

1

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ticdc: BDR GA

2

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tiup: use tibd operator to rollback tidb

5

### First-time contributors' checklist - [ ] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-tidb-operator) that's required for repo owners to accept my contribution. ### What is changed, added, or deleted? (Required) ###...

cdc: add more detail about the authorization

1

### First-time contributors' checklist - [ ] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ###...

tiup: update TiDB versions for upgrade

3

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Update import-csv-files.md

2

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tiup: update TiDB versions for upgrade

3

### First-time contributors' checklist - [ ] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-cn) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ###...

tiup: use tiup to rollback tidb

7

### First-time contributors' checklist - [ ] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-cn) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ###...

sql: Add support for '(' literal ')' as column default

3

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Add circuit breaker variable

2

### First-time contributors' checklist - [ ] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-cn) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ###...