We’re excited to announce that we’ve published the first alpha release for LangChain & LangGraph v1! There are a few key points:
LangGraph is largely the same as before, no breaking changes. We’ve heard good feedback about LangGraph and are excited to move to 1.0
New standard content blocks on messages in LangChain Core. Message formats are evolving, and so is LangChain. Backwards compatible
LangChain itself - high level agents and chains - is greatly changed. You should think of LangChain 1.0 as a new package - focused around a central agent abstraction, built on top of LangGraph
New docs site!
Note that these are alpha releases (and docs), so you can expect some rough edges and breaking changes throughout the alpha period (if you encounter any issues, please open an issue!). We’re working on publishing the stable release for 1.0 in late October. To get started with v1, head on over to the quickstart guide or read the blog post
Have beenfollowing and a avid user from v0.0.1 to create-react agent move from langchain to langraph to langmem and bigtols and supervisor agents to init chat model and finally now
As a Senior PHP Engineer with extensive experience in building large-scale web applications, I’m curious to know how feasible it is to build frameworks similar to LangChain and LangGraph in PHP. Considering PHP’s ecosystem, concurrency model, and integration capabilities, do you see realistic opportunities for implementing such agentic workflows and graph-based orchestration in PHP, or would it be more practical to interface with existing Python/TypeScript implementations instead?