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- (dup): release-9.0.0.md > Improvements> TiDB - Optimize the CPU usage of internal SQL statements in the Distributed eXecution Framework (DXF) [#59344](https://github.com/pingcap/tidb/issues/59344) @[D3Hunter](https://github.com/D3Hunter)
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- Improve the performance of the expression.Contains function [#61373](https://github.com/pingcap/tidb/issues/61373) @[hawkingrei](https://github.com/hawkingrei)
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+ TiKV <!--tw@lilin90: 3 notes-->
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-Introduces CPU-aware scaling for the unified read pool to avoid CPU starvation under hot read workloads.[#18464](https://github.com/tikv/tikv/issues/18464) @[mittalrishabh](https://github.com/mittalrishabh)
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-Adds network latency awareness to slow score to avoid scheduling leaders on TiKV nodes with unstable network conditions.[#18797](https://github.com/tikv/tikv/issues/18797) @[okJiang](https://github.com/okJiang)
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-Optimizes hibernate behavior by allowing leaders to enter hibernation once a majority vote is reached, without waiting for down non-voter peers.[#19070](https://github.com/tikv/tikv/issues/19070) @[jiadebin](https://github.com/jiadebin)
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-Introduce CPU-aware scaling for the unified read pool to avoid CPU starvation under hot read workloads [#18464](https://github.com/tikv/tikv/issues/18464) @[mittalrishabh](https://github.com/mittalrishabh)
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-Add network latency awareness to slow score to avoid scheduling leaders on TiKV nodes with unstable network conditions [#18797](https://github.com/tikv/tikv/issues/18797) @[okJiang](https://github.com/okJiang)
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-Optimize hibernate behavior by allowing leaders to enter hibernation once a majority vote is reached, without waiting for down non-voter peers [#19070](https://github.com/tikv/tikv/issues/19070) @[jiadebin](https://github.com/jiadebin)
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- (dup): release-9.0.0.md > Improvements> TiKV - Throttle BR log restore requests when TiKV memory usage is high to prevent TiKV OOM [#18124](https://github.com/tikv/tikv/issues/18124) @[3pointer](https://github.com/3pointer)
- Fix the issue that TiDB fails to read the latest value of the tidb_mem_quota_binding_cache variable for initialization during the startup process [#65381](https://github.com/pingcap/tidb/issues/65381) @[qw4990](https://github.com/qw4990)
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- Fix the issue that candidate items are incorrectly skipped in extractBestCNFItemRanges, leading to inaccurate query range calculation [#62547](https://github.com/pingcap/tidb/issues/62547) @[hawkingrei](https://github.com/hawkingrei)
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- Fix the issue that `plan replayer` cannot load the binding [#64811](https://github.com/pingcap/tidb/issues/64811) @[hawkingrei](https://github.com/hawkingrei)
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- Fix the issue that `PointGet` fails to reuse chunks even when memory is sufficient, leading to unnecessary memory allocations [#63920](https://github.com/pingcap/tidb/issues/63920) @[hawkingrei](https://github.com/hawkingrei)
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- Fix the issue that `LogicalProjection.DeriveStats` consumes excessive memory during allocation [#63810](https://github.com/pingcap/tidb/issues/63810) @[hawkingrei](https://github.com/hawkingrei)
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- Fix the issue that TiDB fails to dump the plan replayer when a query panics [#64835](https://github.com/pingcap/tidb/issues/64835) @[hawkingrei](https://github.com/hawkingrei)
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- Fix the issue that correlated subqueries might trigger unexpected full table scans when the Plan Cache is enabled [#64645](https://github.com/pingcap/tidb/issues/64645) @[winoros](https://github.com/winoros)
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- Fix the issue that system tables cause incorrect calculation of table health metrics [#57176](https://github.com/pingcap/tidb/issues/57176), [#64080](https://github.com/pingcap/tidb/issues/64080) @[0xPoe](https://github.com/0xPoe)
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- Fix the issue that the `mysql.tidb_ddl_notifier` table cannot be cleaned up when automatic statistics updates are disabled (`tidb_enable_auto_analyze = OFF`) [#64038](https://github.com/pingcap/tidb/issues/64038) @[0xPoe](https://github.com/0xPoe)
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- Fix the issue that columns are redundantly allocated in `newLocalColumnPool`[#63809](https://github.com/pingcap/tidb/issues/63809) @[hawkingrei](https://github.com/hawkingrei)
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- Fix the issue that there are redundant `syncload` failure warning logs [#63880](https://github.com/pingcap/tidb/issues/63880) @[0xPoe](https://github.com/0xPoe)
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- Fix the issue that TiDB might panic and exit unexpectedly when a connection that runs an active transaction is manually terminated [#63956](https://github.com/pingcap/tidb/issues/63956) @[wshwsh12](https://github.com/wshwsh12)
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- Fix the issue that goroutine and memory leaks might occur when a cached table reads from a TiFlash replica [#63329](https://github.com/pingcap/tidb/issues/63329) @[xzhangxian1008](https://github.com/xzhangxian1008)
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- Fix the issue that foreign key is not updated after running `ALTER TABLE child CHANGE COLUMN` to modify a column [#issue](https://github.com/pingcap/tidb/issues/59705) @[fzzf678](https://github.com/fzzf678)<!--tw@hfxsd: the following 16 notes-->
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- Fix the issue that an error occurs when decoding the `RENAME TABLE` job arg from an earlier version [#64413](https://github.com/pingcap/tidb/issues/64413) @[joechenrh](https://github.com/joechenrh)
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- Fix the issue that the auto increment is not rebased if BR restore fails [#60804](https://github.com/pingcap/tidb/issues/60804) @[joechenrh](https://github.com/joechenrh)
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