[WIP]: add v7.5.8 release notes - #23757
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Included review availability: Your plan provides up to 4 included reviews per hour; 1 remains after this review. 📝 WalkthroughWalkthroughThe release page adds TiDB 7.5.8 metadata, one PD improvement, and bug fixes across TiDB, TiKV, PD, TiFlash, and TiCDC. ChangesTiDB 7.5.8 release notes
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to This release-notes update documents TiDB 7.5.8 improvements and fixes without changing runtime behavior. No merge-readiness risk remains. Suggested reviewers: 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Description checkExplanation The description explains the change, target versions, branch context, and reference file. It omits the AI agent involvement section and selects master and v8.5 instead of v7.5, which does not match the TiDB 7.5.8 release notes described by the pull request. ✨ Finishing Touches🧪 Generate unit tests (beta)
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releases/release-7.5.8.md
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Co-authored-by: lidezhu <47731263+lidezhu@users.noreply.github.com>
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Co-authored-by: JaySon <tshent@qq.com>
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LGTM for the planner part
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| - Fix the issue that TiKV might panic with `txn record found but not expected` due to a race between external SST ingestion and foreground writes [#19891](https://github.com/tikv/tikv/issues/19891) @[gengliqi](https://github.com/gengliqi) <!-- component: tikv --> <!-- pr: https://github.com/tikv/tikv/pull/19914 --> | ||
| - Fix the issue that BR leaves stale GC service safepoints after a log backup task is stopped, which might block garbage collection from progressing as expected [#19832](https://github.com/tikv/tikv/issues/19832) @[Leavrth](https://github.com/Leavrth) <!-- component: br --> <!-- pr: https://github.com/tikv/tikv/pull/19913 --> |
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| - Fix the issue that BR leaves stale GC service safepoints after a log backup task is stopped, which might block garbage collection from progressing as expected [#19832](https://github.com/tikv/tikv/issues/19832) @[Leavrth](https://github.com/Leavrth) <!-- component: br --> <!-- pr: https://github.com/tikv/tikv/pull/19913 --> | |
| - Fix the issue that BR leaves stale GC service safepoints after a log backup task is stopped, which might block GC from progressing as expected [#19832](https://github.com/tikv/tikv/issues/19832) @[Leavrth](https://github.com/Leavrth) <!-- component: br --> <!-- pr: https://github.com/tikv/tikv/pull/19913 --> |
| - Fix the issue that BR leaves stale GC service safepoints after a log backup task is stopped, which might block garbage collection from progressing as expected [#19832](https://github.com/tikv/tikv/issues/19832) @[Leavrth](https://github.com/Leavrth) <!-- component: br --> <!-- pr: https://github.com/tikv/tikv/pull/19913 --> | ||
| - Fix the issue that stale connections between TiKV and TiCDC might not be fully cleaned up after TiCDC restarts or network failures, exhausting the TiKV CDC memory quota and causing changefeeds to stall [#18169](https://github.com/tikv/tikv/issues/18169) [#19610](https://github.com/tikv/tikv/issues/19610) @[asddongmen](https://github.com/asddongmen) @[wk989898](https://github.com/wk989898) <!-- component: cdc --> <!-- pr: https://github.com/tikv/tikv/pull/18864 --> <!-- pr: https://github.com/tikv/tikv/pull/19689 --> | ||
| - Fix the issue that TiKV throughput might continue to drop during a TiKV I/O hang because PD-related work is blocked by I/O operations [#17939](https://github.com/tikv/tikv/issues/17939) @[LykxSassinator](https://github.com/LykxSassinator) <!-- component: tikv --> <!-- pr: https://github.com/tikv/tikv/pull/18969 --> | ||
| - Fix the issue that foreground writes are blocked during external SST ingestion, increasing write latency during ingestion [#19954](https://github.com/tikv/tikv/issues/19954) @[gengliqi](https://github.com/gengliqi) <!-- component: tikv --> <!-- pr: https://github.com/tikv/tikv/pull/19978 --> |
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| - Fix the issue that foreground writes are blocked during external SST ingestion, increasing write latency during ingestion [#19954](https://github.com/tikv/tikv/issues/19954) @[gengliqi](https://github.com/gengliqi) <!-- component: tikv --> <!-- pr: https://github.com/tikv/tikv/pull/19978 --> |
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What is changed, added or deleted? (Required)
releases/release-7.5.8.mdfor the TiDB 7.5.8 patch release notes.release-8.5because the release-notes directory is maintained there and will be cherry-picked tomaster.Which TiDB version(s) do your changes apply to? (Required)
What is the related PR or file link(s)?
doc_4afdcdb19e49_release-7.5.8-updated-by-ai.mdDo your changes match any of the following descriptions?
Summary by CodeRabbit
Documentation
Bug Fixes