add v8.5.5 release notes#22190

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qiancai merged 76 commits intopingcap:masterfrom

qiancai:add-8.5.5-rn

Jan 15, 2026

Commits on Dec 16, 2025

Create release-8.5.5.md
qiancai
committed

Commits on Dec 17, 2025

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hfxsd
authored

Commits on Dec 29, 2025

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Commits on Dec 31, 2025

Compatibility changes: add tidb_index_lookup_pushdown_policy
Oreoxmt
authored
add improvements and bug fixes for coprocessor/TiKV /engine/raft

qiancai
and
hbisheng
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Commits on Jan 6, 2026

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benmeadowcroft
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lilin90
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Commits on Jan 7, 2026

Commits on Jan 10, 2026

add readpool.cpu-threshold
qiancai
authored

Commits on Jan 14, 2026

Commits on Jan 15, 2026