[WIP]: add v8.5.4 release notes

releases/release-8.5.4.md

@@ -0,0 +1,147 @@
+---
+title: TiDB 8.5.4 Release Notes
+summary: 了解 TiDB 8.5.4 版本的兼容性变更、改进提升，以及错误修复。
+---
+
+# TiDB 8.5.4 Release Notes
+
+发版日期：2025 年 x 月 x 日
+
+TiDB 版本：8.5.4
+
+试用链接：[快速体验](https://docs.pingcap.com/zh/tidb/v8.5/quick-start-with-tidb) | [生产部署](https://docs.pingcap.com/zh/tidb/v8.5/production-deployment-using-tiup) | [下载离线包](https://cn.pingcap.com/product-community/?version=v8.5.4#version-list)
+
+## 兼容性变更
+
+- note [#issue](https://github.com/pingcap/${repo-name}/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+- (dup): release-7.5.7.md > 兼容性变更 - TiKV 废弃以下配置项，并由新的 [`gc.auto-compaction`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file/#gcauto-compaction) 配置项替代，用于控制自动 compaction 行为 [#18727](https://github.com/tikv/tikv/issues/18727) @[v01dstar](https://github.com/v01dstar)
+
+    - 废弃配置项：[`region-compact-check-interval`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#region-compact-check-interval)、[`region-compact-check-step`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#region-compact-check-step)、[`region-compact-min-tombstones`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#region-compact-min-tombstones)、[`region-compact-tombstones-percent`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#region-compact-tombstones-percent)、[`region-compact-min-redundant-rows`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#region-compact-min-redundant-rows-从-v710-版本开始引入) 和 [`region-compact-redundant-rows-percent`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#region-compact-redundant-rows-percent-从-v710-版本开始引入)。
+    - 新增配置项：[`gc.auto-compaction.check-interval`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#check-interval-从-v757-版本开始引入)、[`gc.auto-compaction.tombstone-num-threshold`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#tombstone-num-threshold-从-v757-版本开始引入)、[`gc.auto-compaction.tombstone-percent-threshold`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#tombstone-percent-threshold-从-v757-版本开始引入)、[`gc.auto-compaction.redundant-rows-threshold`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#redundant-rows-threshold-从-v757-版本开始引入)、[`gc.auto-compaction.redundant-rows-percent-threshold`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#redundant-rows-percent-threshold-从-v757-版本开始引入) 和 [`gc.auto-compaction.bottommost-level-force`](https://docs.pingcap.com/zh/tidb/v7.5/tikv-configuration-file#bottommost-level-force-从-v757-版本开始引入)。
+
+## 改进提升
+
++ TiDB
+
+    - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - (dup): release-9.0.0.md(beta.1) > # SQL 功能 * 支持对分区表的非唯一列创建全局索引 [#58650](https://github.com/pingcap/tidb/issues/58650) @[Defined2014](https://github.com/Defined2014) @[mjonss](https://github.com/mjonss)
+    - (dup): release-9.0.0.md(beta.1) > 改进提升> TiDB - 支持由 `IN` 子查询而来的 Semi Join 使用 `semi_join_rewrite` 的 Hint [#58829](https://github.com/pingcap/tidb/issues/58829) @[qw4990](https://github.com/qw4990)
+
++ TiKV
+
+    - note [#issue](https://github.com/tikv/tikv/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/tikv/tikv/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - (dup): release-7.5.7.md > 改进提升> TiKV - 优化在存在大量 SST 文件的环境中 async snapshot 和 write 的尾延迟 [#18743](https://github.com/tikv/tikv/issues/18743) @[Connor1996](https://github.com/Connor1996)
+
++ PD
+
+    - note [#issue](https://github.com/tikv/pd/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/tikv/pd/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - (dup): release-7.5.7.md > 改进提升> PD - 减少非必要的错误日志 [#9370](https://github.com/tikv/pd/issues/9370) @[bufferflies](https://github.com/bufferflies)
+
++ TiFlash
+
+    - note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - 跳过不必要读取的数据，优化 TableScan 的读取性能 [#9875](https://github.com/pingcap/tiflash/issues/9875) @[gengliqi](https://github.com/gengliqi)
+    - 优化 TiFlash 在宽且稀疏的表上 TableScan 的性能 [#10361](https://github.com/pingcap/tiflash/issues/10361) @[JaySon-Huang](https://github.com/JaySon-Huang)
+    - 优化当集群存在大量表时，添加向量索引时的 TiFlash CPU 开销 [#10357](https://github.com/pingcap/tiflash/issues/10357) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
+    - 减少不必要的处理 raft commands 时的日志 [#10467](https://github.com/pingcap/tiflash/issues/10467) @[JaySon-Huang](https://github.com/JaySon-Huang)
+
++ Tools
+
+    + Backup & Restore (BR)
+
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiCDC
+
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiDB Data Migration (DM)
+
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiDB Lightning
+
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + Dumpling
+
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiUP
+
+        - note [#issue](https://github.com/pingcap/tiup/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tiup/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+## 错误修复
+
++ TiDB
+
+    - 修复当 `tidb_isolation_read_engines` 设置为 "tiflash" 时，`use index` hint 无法生效的问题 [#60869](https://github.com/pingcap/tidb/issues/60869) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
+    - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - 修复了 `max_execution_time` 对 `SELECT FOR UPDATE` 语句不生效的问题. [#62960](https://github.com/pingcap/tidb/issues/62960) @[ekexium](https://github.com/ekexium)
+    - (dup): release-7.5.7.md > 错误修复> TiDB - 修复估算跨月或跨年的行数时，结果可能过分偏大的问题 [#50080](https://github.com/pingcap/tidb/issues/50080) @[terry1purcell](https://github.com/terry1purcell)
+    - 修复预处理语句中处理 decimal 与 mysql 不一致的问题 [#62602](https://github.com/pingcap/tidb/issues/62602) @[ChangRui-Ryan](https://github.com/ChangRui-Ryan)
+    - 修复 `truncate` 函数中短路径处理错误的问题 [#57608](https://github.com/pingcap/tidb/issues/57608) @[xzhangxian1008](https://github.com/xzhangxian1008)
+    - 修复当 `Out Of Quota For Local Temporary Space` 触发时，spill 文件可能未被全部删除的问题 [#63216](https://github.com/pingcap/tidb/issues/63216) @[xzhangxian1008](https://github.com/xzhangxian1008)
+
++ TiKV
+
+    - note [#issue](https://github.com/tikv/tikv/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/tikv/tikv/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
++ PD
+
+    - note [#issue](https://github.com/tikv/pd/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/tikv/pd/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - (dup): release-9.0.0.md(beta.1) > 错误修复> PD - 修复 PD Client 重试策略没有正确初始化的问题 [#9013](https://github.com/tikv/pd/issues/9013) @[rleungx](https://github.com/rleungx)
+
++ TiFlash
+
+    - note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - note [#issue](https://github.com/pingcap/tiflash/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+    - 修复当查询的列存储大量 `NULL` 值时，可能导致查询失败的问题 [#10340](https://github.com/pingcap/tiflash/issues/10340) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
+    - 修复 TiFlash 消耗超过预期的 RU 的问题 [#10380](https://github.com/pingcap/tiflash/issues/10380) @[JinheLin](https://github.com/JinheLin)
+    - 修复存算分离架构下，在存在慢查询时 TiFlash 容易发生 OOM 的问题 [#10278](https://github.com/pingcap/tiflash/issues/10278) @[JaySon-Huang](https://github.com/JaySon-Huang)
+    - 修复存算分离架构下，TiFlash 遇到与 S3 网络分区时可能无限重试的问题 [#10424](https://github.com/pingcap/tiflash/issues/10424) @[JaySon-Huang](https://github.com/JaySon-Huang)
+    - 修复了当参数为 `decimal` 类型时，`floor` 和 `ceil` 函数结果可能不正确的问题 [#10365](https://github.com/pingcap/tidb/issues/10365) @[ChangRui-Ryan](https://github.com/ChangRui-Ryan) 
+
++ Tools
+
+    + Backup & Restore (BR)
+
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiCDC
+
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiDB Data Migration (DM)
+
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tiflow/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiDB Lightning
+
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + Dumpling
+
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tidb/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+
+    + TiUP
+
+        - note [#issue](https://github.com/pingcap/tiup/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})
+        - note [#issue](https://github.com/pingcap/tiup/issues/${issue-id}) @[贡献者 GitHub ID](https://github.com/${github-id})