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add sync load release note
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Signed-off-by: yisaer <disxiaofei@163.com>
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Yisaer committed Nov 9, 2022
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Expand Up @@ -132,6 +132,10 @@ TiDB 版本:6.4.0-DMR

[用户文档](/system-variables.md#tidb-opt-range-max-size-从-v640-版本开始引入)

* 支持统计信息的同步加载(GA特性)[#38841](https://github.com/pingcap/tidb/pull/38841) @[chrysan](https://github.com/chrysan)

v6.4.0 TiDB 正式打开了统计信息同步加载的特性(默认开启),支持执行当前 SQL 语句时将直方图、TopN、CMSketch 等占用空间较大的统计信息同步加载到内存,提高该 SQL 语句优化时统计信息的完整性

### 易用性

* TiKV API V2 GA [#11745](https://github.com/tikv/tikv/issues/11745) @[pingyu](https://github.com/pingyu) **tw@Oreoxmt**
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