0.5.0

🚀 Overview

This release upgrades langchain-pymupdf4llm to full compatibility with LangChain v1.0+ and modern Python packaging standards.
It updates all dependencies, refreshes the Poetry configuration, and modernizes the documentation while preserving backward-compatible APIs.

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🔧 Key Changes

Core

• Updated langchain-core dependency to >=1.0.0,<2.0.0
• Updated pymupdf4llm to >=0.1.0,<0.2.0
• Verified all loader and parser imports against LangChain v1.0+ APIs
• Maintained backward compatibility with previous loader behavior

Packaging / Poetry

• Modernized pyproject.toml and poetry.lock for Poetry 2.x
• Clean dependency graph and explicit Python 3.11+ requirement
• Removed unused or redundant dependencies (e.g., LangGraph)

Testing

• Upgraded testing stack:

  • pytest 8.4.2
  • pytest-asyncio 1.2.0
  • langchain-tests 1.0.1

• 18 unit & integration tests all passing ✅

• Verified under Python 3.11.14 inside Docker

Documentation

• Updated README.md with:

  • LangChain v1.0+ badge & compatibility notice
  • Updated installation and usage examples
  • Clear Docker-based development instructions
  • Contribution and build guidelines

Versioning

• Bumped package version: 0.4.1 → 0.5.0
• Ready for publication to PyPI

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🧪 Verification Results

Check	Status
Tests run with poetry run pytest -v	✅ 18/18 passed
Poetry install / lock clean	✅
Package build (poetry build)	✅
Docker dev environment	✅ Python 3.11 / Poetry 2.2.1

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📦 Upgrade Instructions

pip install -U langchain-pymupdf4llm
# or via poetry
poetry add langchain-pymupdf4llm@^0.5.0

Requires:

• Python ≥ 3.11
• LangChain Core ≥ 1.0.0
• PyMuPDF4LLM ≥ 0.1.0