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releases notes: add 5.1.2 release notes #7149

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Sep 27, 2021
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releases notes: add 5.1.2 release notes #7149

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releases: add tidb 5.1.2-10-06-33 release notes
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Update releases/release-5.1.2.md 
Co-authored-by: Enwei <jinenwei@pingcap.com>
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@TomShawn @en-jin19
TomShawn and en-jin19 authored Sep 27, 2021
commit 635394ec2f9be1bdc6c41aef08ca9c3d06b69888
8 changes: 4 additions & 4 deletions releases/release-5.1.2.md
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Expand Up @@ -36,15 +36,15 @@ TiDB 版本：5.1.2

+ TiKV

- 支持动态更改 CDC (Change Data Capture) 配置项 [#10686] (https://github.com/tikv/tikv/pull/10686)
- 减少 Resolved TS 的消息大小，以节省网络带宽 [#2448](https://github.com/pingcap/ticdc/issues/2448)
- 支持限制每个 Store 发送的心跳包信息中 peer 状态（PeerStat）信息的数量 [#10621](https://github.com/tikv/tikv/pull/10621)
- 支持动态更改 TiCDC 配置项 [#10645] (https://github.com/tikv/tikv/issues/10645)
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- 减少 Resolved TS 消息的大小以节省网络带宽 [#2448](https://github.com/pingcap/ticdc/issues/2448)
- 支持限制每个 Store 发送的心跳包信息中 peer stats 的数量 [#10621](https://github.com/tikv/tikv/pull/10621)

+ PD

- 允许空 Region 被调度在 scatter range 调度器，并可以在该调度器中使用单独的 tolerance 配置项 [#4117](https://github.com/tikv/pd/pull/4117)
- 提升 PD 之间同步 Region 信息的性能 [#3933](https://github.com/tikv/pd/pull/3933)
- 支持根据 Operator 的生成情况动态调整 Store 的重试次数 [#4048](https://github.com/tikv/pd/pull/4048)
- 支持根据 Operator 的生成情况动态调整 Store 的重试次数 [#3744](https://github.com/tikv/pd/issues/3744)

+ TiFlash

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