From 36bb671a2b7d0769223e8162313710c9b7330f87 Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Tue, 28 Apr 2026 12:55:00 -0700
Subject: [PATCH 1/4] python3Packages.langchain-anthropic: fix changelog link

---
 pkgs/development/python-modules/langchain-anthropic/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/langchain-anthropic/default.nix b/pkgs/development/python-modules/langchain-anthropic/default.nix
index af748fb30dea..c35a5debb7cd 100644
--- a/pkgs/development/python-modules/langchain-anthropic/default.nix
+++ b/pkgs/development/python-modules/langchain-anthropic/default.nix
@@ -75,7 +75,7 @@ buildPythonPackage (finalAttrs: {
   };
 
   meta = {
-    changelog = "https://github.com/langchain-ai/langchain-anthropic/releases/tag/${finalAttrs.src.tag}";
+    changelog = "https://github.com/langchain-ai/langchain/releases/tag/${finalAttrs.src.tag}";
     description = "Build LangChain applications with Anthropic";
     homepage = "https://github.com/langchain-ai/langchain/tree/master/libs/partners/anthropic";
     license = lib.licenses.mit;

From a85cee2e313ebcb63bb3970297de607f5fb12b64 Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Tue, 28 Apr 2026 12:57:29 -0700
Subject: [PATCH 2/4] python3Packages.langchain-perplexity: migrate to
 finalAttrs

---
 .../python-modules/langchain-perplexity/default.nix    | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/python-modules/langchain-perplexity/default.nix b/pkgs/development/python-modules/langchain-perplexity/default.nix
index 00c410464b0a..15f1c51a091d 100644
--- a/pkgs/development/python-modules/langchain-perplexity/default.nix
+++ b/pkgs/development/python-modules/langchain-perplexity/default.nix
@@ -21,7 +21,7 @@
   gitUpdater,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "langchain-perplexity";
   version = "1.1.0";
   pyproject = true;
@@ -29,11 +29,11 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain";
-    tag = "langchain-perplexity==${version}";
+    tag = "langchain-perplexity==${finalAttrs.version}";
     hash = "sha256-bm7sIa62CIvsYNDdaN+XZKpRnCv5bg9kPZ1Ym8utFcM=";
   };
 
-  sourceRoot = "${src.name}/libs/partners/perplexity";
+  sourceRoot = "${finalAttrs.src.name}/libs/partners/perplexity";
 
   build-system = [ hatchling ];
 
@@ -69,7 +69,7 @@ buildPythonPackage rec {
   };
 
   meta = {
-    changelog = "https://github.com/langchain-ai/langchain-perplexity/releases/tag/${src.tag}";
+    changelog = "https://github.com/langchain-ai/langchain-perplexity/releases/tag/${finalAttrs.src.tag}";
     description = "Build LangChain applications with Perplexity";
     homepage = "https://github.com/langchain-ai/langchain/tree/master/libs/partners/perplexity";
     license = lib.licenses.mit;
@@ -77,4 +77,4 @@ buildPythonPackage rec {
       sarahec
     ];
   };
-}
+})

From 6a07a01894265816a6cb964050d5904d2a9ed0c5 Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Tue, 28 Apr 2026 13:01:49 -0700
Subject: [PATCH 3/4] python3Packages.langchain-perplexity: fix changelog link

---
 .../development/python-modules/langchain-perplexity/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/langchain-perplexity/default.nix b/pkgs/development/python-modules/langchain-perplexity/default.nix
index 15f1c51a091d..8704e3615b8f 100644
--- a/pkgs/development/python-modules/langchain-perplexity/default.nix
+++ b/pkgs/development/python-modules/langchain-perplexity/default.nix
@@ -69,7 +69,7 @@ buildPythonPackage (finalAttrs: {
   };
 
   meta = {
-    changelog = "https://github.com/langchain-ai/langchain-perplexity/releases/tag/${finalAttrs.src.tag}";
+    changelog = "https://github.com/langchain-ai/langchain/releases/tag/${finalAttrs.src.tag}";
     description = "Build LangChain applications with Perplexity";
     homepage = "https://github.com/langchain-ai/langchain/tree/master/libs/partners/perplexity";
     license = lib.licenses.mit;

From 7fa538f8b4ab04b24dbedbb2ddb0806ea88d2c56 Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Tue, 28 Apr 2026 13:03:57 -0700
Subject: [PATCH 4/4] python3Packages.langchain-xai: fix changelog link

---
 pkgs/development/python-modules/langchain-xai/default.nix | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/langchain-xai/default.nix b/pkgs/development/python-modules/langchain-xai/default.nix
index ab01b237473e..36fc76d6557f 100644
--- a/pkgs/development/python-modules/langchain-xai/default.nix
+++ b/pkgs/development/python-modules/langchain-xai/default.nix
@@ -1,6 +1,5 @@
 {
   lib,
-  stdenvNoCC,
   buildPythonPackage,
   fetchFromGitHub,
 
@@ -72,7 +71,7 @@ buildPythonPackage (finalAttrs: {
   };
 
   meta = {
-    changelog = "https://github.com/langchain-ai/langchain-xai/releases/tag/${finalAttrs.src.tag}";
+    changelog = "https://github.com/langchain-ai/langchain/releases/tag/${finalAttrs.src.tag}";
     description = "Build LangChain applications with X AI";
     homepage = "https://github.com/langchain-ai/langchain/tree/master/libs/partners/xai";
     license = lib.licenses.mit;