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CHANGELOG.md
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格式基于 [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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项目遵循 [语义化版本](https://semver.org/spec/v2.0.0.html) 规范。
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+## [2.4.2] - 2026-02-23
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+
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+### 🐛 Bug 修复
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+- **pyarrow 依赖缺失** - 补入 `pyarrow>=10.0.0` 为必须依赖,修复 `pip install simtradelab` 后 Parquet 读写报 `ImportError` 的问题
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+### 📦 升级指南
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+```bash
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+pip install --upgrade simtradelab==2.4.2
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+```
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+**兼容性:** ✅ API 接口无 breaking change。
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+---
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## [2.4.1] - 2026-02-23
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### 🐛 Bug 修复
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