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mineru-4.0.6-released

stepfun-ai/Step-Audiomineru-4.0.6-releasedSep 22, 2026by myhloli

Upgrading?

What changed from v26.10.0 → mineru-4.0.6-released?What's new in v1.22.0 after mineru-4.0.6-released?

AI Summary

This MinerU release introduces EPUB viewer support in the WebUI and fixes PDF export issues related to CJK paragraphs and text block normalization.

Key Highlights

  • EPUB viewer with section navigation and metadata display
  • Fixed PDF export crashes with CJK paragraphs containing inline formulas
  • Fixed regression where PDF text blocks missing line info were dropped

New Features

  • EPUB viewer in WebUI with section navigation and improved metadata handling
  • Fixed PDF text block normalization for blocks missing line info
  • Fixed PDF export crashes with CJK paragraphs containing inline formulas
  • Added regression tests for the PDF fixes

Full Release Notes

## 更新内容 / What's Changed

**新增 / Features**
- WebUI 新增 EPUB 在线预览：支持章节导航与元数据展示，静态资源经浏览器代理加载 / EPUB viewer in the WebUI with section navigation and improved metadata handling

**改进与修复 / Improvements & Fixes**
- 修复缺少行信息（lines）的 PDF 文本块在归一化时被整块丢弃的回归，增加 bbox 兜底（#5565）/ Fix regression where PDF text blocks missing line info were dropped entirely during normalization, with a bbox fallback (#5565)
- 修复中文段落含行内公式时导出 PDF 的崩溃（reportlab CJK 断行缺陷），并新增回归测试 / Fix crash when exporting PDFs with CJK paragraphs containing inline formulas (reportlab CJK line-breaking), with a regression test

**依赖 / Dependencies**
- docvortex 最低版本提升至 0.4.22 / Require docvortex>=0.4.22

**Full Changelog**: https://github.com/opendatalab/MinerU/compare/mineru-4.0.5-released...mineru-4.0.6-released

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