From 210af5a299bb8a85aaa88406015efe1479cfb91b Mon Sep 17 00:00:00 2001
From: "Open SWE[bot]" <Open SWE@users.noreply.github.com>
Date: Sun, 15 Feb 2026 22:38:39 +0000
Subject: [PATCH] Add deprecation warning to root README directing users to
 LangGraph

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 2c6d16f5c4f..ed92d1b7295 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,9 @@
   <a href="https://x.com/langchain" target="_blank"><img src="https://img.shields.io/twitter/url/https/twitter.com/langchain.svg?style=social&label=Follow%20%40LangChain" alt="Twitter / X"></a>
 </div>
 
+> [!CAUTION]
+> **This repository is deprecated.** The `langchain` package is no longer actively maintained. We recommend migrating to [LangGraph](https://github.com/langchain-ai/langgraph) for building agents and LLM-powered applications. See the [LangGraph documentation](https://docs.langchain.com/oss/python/langgraph/overview) for more details.
+
 LangChain is a framework for building agents and LLM-powered applications. It helps you chain together interoperable components and third-party integrations to simplify AI application development – all while future-proofing decisions as the underlying technology evolves.
 
 ```bash