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releases: add TiDB 5.1.1 release notes #6030

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Jul 30, 2021
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add two dumpling notes
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TomShawn committed Jul 28, 2021
commit 599de7a31df38e6913903657b45331cedcc1cb9b
5 changes: 5 additions & 0 deletions releases/release-5.1.1.md
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Expand Up @@ -79,6 +79,11 @@ TiDB version: 5.1.1

- Add retry for restoring schemas [#1294](https://github.com/pingcap/br/pull/1294)

+ Dumpling

- Always split tables using _tidb_rowid when the upstream is a TiDB v3.x cluster, which helps reduce TiDB's memory [#308](https://github.com/pingcap/dumpling/pull/308)
- Reduce dumpling accessing database and information_schema usage and improve dumpling's stability. [#315](https://github.com/pingcap/dumpling/pull/315)

## Bug fixes

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+ TiDB
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