Development

This section contains guides with general information around building apps with LangChain.

📄️ Debugging

If you're building with LLMs, at some point something will break, and you'll need to debug. A model call will fail, or the model output will be misformatted, or there will be some nested model calls and it won't be clear where along the way an incorrect output was created.

📄️ Extending LangChain

Extending LangChain's base abstractions, whether you're planning to contribute back to the open-source repo or build a bespoke internal integration, is encouraged.

📄️ Run LLMs locally

Use case

📄️ Pydantic compatibility

- Pydantic v2 was released in June, 2023 (https://docs.pydantic.dev/2.0/blog/pydantic-v2-final/)