From a20969101ddb151073ecdbb999799a634bac7502 Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Wed, 19 Nov 2025 11:53:13 -0800
Subject: [PATCH] python3Packages.langchain-community: 0.3.27 -> 0.4.1

---
 .../langchain-community/default.nix           | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/pkgs/development/python-modules/langchain-community/default.nix b/pkgs/development/python-modules/langchain-community/default.nix
index fdc3b7b8bd3f..e3cbd8ec56a3 100644
--- a/pkgs/development/python-modules/langchain-community/default.nix
+++ b/pkgs/development/python-modules/langchain-community/default.nix
@@ -10,7 +10,7 @@
   aiohttp,
   dataclasses-json,
   httpx-sse,
-  langchain,
+  langchain-classic,
   langchain-core,
   langsmith,
   numpy,
@@ -42,39 +42,30 @@
 
 buildPythonPackage rec {
   pname = "langchain-community";
-  version = "0.3.27";
+  version = "0.4.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain-community";
     tag = "libs/community/v${version}";
-    hash = "sha256-rGU8AYe7993+zMAtHLkNiK+wA+UtZnGkUQsOPMtUQ8w=";
+    hash = "sha256-N92YDmej2shQQlktr0veFOKyGFWemFj0hdJIYu1rYSc=";
   };
 
   sourceRoot = "${src.name}/libs/community";
 
   build-system = [ pdm-backend ];
 
+  # Only needed for mixed python 3.12/3.13 builds
   pythonRelaxDeps = [
-    # Each component release requests the exact latest langchain and -core.
-    # That prevents us from updating individual components.
-    "langchain"
-    "langchain-core"
     "numpy"
-    "pydantic-settings"
-    "tenacity"
-  ];
-
-  pythonRemoveDeps = [
-    "bs4"
   ];
 
   dependencies = [
     aiohttp
     dataclasses-json
     httpx-sse
-    langchain
+    langchain-classic
     langchain-core
     langsmith
     numpy