What's new in v1

LangGraph v1 is a stability-focused release for the agent runtime. It keeps the core graph APIs and execution model unchanged, while refining type safety, docs, and developer ergonomics.

It’s designed to work hand-in-hand with LangChain v1 (whose create_agent is built on LangGraph) so you can start high-level and drop down to granular control when needed.

Stable core APIs

Graph primitives (state, nodes, edges) and the execution/runtime model are unchanged, making upgrades straightforward.

Reliability, by default

Durable execution with checkpointing, persistence, streaming, and human-in-the-loop continues to be first-class.

Seamless with LangChain v1

LangChain’s create_agent runs on LangGraph. Use LangChain for a fast start; drop to LangGraph for custom orchestration.

To upgrade,

pip

pip install -U langgraph

Deprecation of create_react_agent

The LangGraph create_react_agent prebuilt has been deprecated in favor of LangChain’s create_agent. It provides a simpler interface, and offers greater customization potential through the introduction of middleware.

• For information on the new create_agent API, see the LangChain v1 release notes.
• For information on migrating from create_react_agent to create_agent, see the LangChain v1 migration guide.

Reporting issues

Please report any issues discovered with 1.0 on GitHub using the 'v1' label.

Additional resources

LangGraph 1.0

Read the announcement

Overview

What LangGraph is and when to use it

Graph API

Build graphs with state, nodes, and edges

LangChain Agents

High-level agents built on LangGraph

Migration guide

How to migrate to LangGraph v1

GitHub

Report issues or contribute

See also

• Versioning - Understanding version numbers
• Release policy - Detailed release policies

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