diff --git a/pkgs/development/python-modules/google-genai/default.nix b/pkgs/development/python-modules/google-genai/default.nix
index 39a9ee131d4a..92ce14652cea 100644
--- a/pkgs/development/python-modules/google-genai/default.nix
+++ b/pkgs/development/python-modules/google-genai/default.nix
@@ -20,14 +20,14 @@
 
 buildPythonPackage rec {
   pname = "google-genai";
-  version = "1.38.0";
+  version = "1.54.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "googleapis";
     repo = "python-genai";
     tag = "v${version}";
-    hash = "sha256-gJaLEpNKHl6n1MvQDIUW7ynsHYH2eEPGsYso5jSysNg=";
+    hash = "sha256-yN45JvchpG8RJ7p2I5/MQ0gUg7GQDjugP0wrYWWr3ps=";
   };
 
   build-system = [
diff --git a/pkgs/development/python-modules/langchain-aws/default.nix b/pkgs/development/python-modules/langchain-aws/default.nix
index 5b29a60e1384..f58818ba37b2 100644
--- a/pkgs/development/python-modules/langchain-aws/default.nix
+++ b/pkgs/development/python-modules/langchain-aws/default.nix
@@ -4,7 +4,7 @@
   fetchFromGitHub,
 
   # build-system
-  pdm-backend,
+  hatchling,
 
   # dependencies
   boto3,
@@ -24,14 +24,14 @@
 
 buildPythonPackage rec {
   pname = "langchain-aws";
-  version = "1.0.0";
+  version = "1.1.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain-aws";
     tag = "langchain-aws==${version}";
-    hash = "sha256-Y4r9a7EiyOACcU41+1Lo89jguu1QmijWsNeoNqKF3cY=";
+    hash = "sha256-vszpWFKuDZb7DvUhnCROgKJdbyA+slyIhCcIOEuPPhA=";
   };
 
   postPatch = ''
@@ -41,7 +41,7 @@ buildPythonPackage rec {
 
   sourceRoot = "${src.name}/libs/aws";
 
-  build-system = [ pdm-backend ];
+  build-system = [ hatchling ];
 
   dependencies = [
     boto3
diff --git a/pkgs/development/python-modules/langchain-core/default.nix b/pkgs/development/python-modules/langchain-core/default.nix
index bb1ad47775be..6959d502dace 100644
--- a/pkgs/development/python-modules/langchain-core/default.nix
+++ b/pkgs/development/python-modules/langchain-core/default.nix
@@ -15,6 +15,7 @@
   pyyaml,
   tenacity,
   typing-extensions,
+  uuid-utils,
 
   # tests
   blockbuster,
@@ -36,14 +37,14 @@
 
 buildPythonPackage rec {
   pname = "langchain-core";
-  version = "1.1.0";
+  version = "1.1.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-core==${version}";
-    hash = "sha256-uDMex+2wvvNvdFSTHjShsrJeeMymOMKCmfS+AyMMH6c=";
+    hash = "sha256-2wOe9vIqYIxPDh3gXnuHTqcXx1iOtBTCInFieWsL4Ow=";
   };
 
   sourceRoot = "${src.name}/libs/core";
@@ -58,6 +59,7 @@ buildPythonPackage rec {
     pyyaml
     tenacity
     typing-extensions
+    uuid-utils
   ];
 
   pythonImportsCheck = [ "langchain_core" ];
diff --git a/pkgs/development/python-modules/langchain-google-genai/default.nix b/pkgs/development/python-modules/langchain-google-genai/default.nix
index f89cb6787844..5d41f44e971e 100644
--- a/pkgs/development/python-modules/langchain-google-genai/default.nix
+++ b/pkgs/development/python-modules/langchain-google-genai/default.nix
@@ -4,13 +4,13 @@
   fetchFromGitHub,
 
   # build-system
-  pdm-backend,
+  hatchling,
 
   # dependencies
   filetype,
   google-api-core,
   google-auth,
-  google-generativeai,
+  google-genai,
   langchain-core,
   pydantic,
 
@@ -29,19 +29,19 @@
 
 buildPythonPackage rec {
   pname = "langchain-google-genai";
-  version = "3.0.0";
+  version = "4.0.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain-google";
     tag = "libs/genai/v${version}";
-    hash = "sha256-9Z0iRSICApA5/iHB7NTVYGpkktaoynG74W2mvn9zeMg=";
+    hash = "sha256-SVwBJbHcoD8zqBr4r1uP35/gbWZxZsD0ygJuttCdTjY=";
   };
 
   sourceRoot = "${src.name}/libs/genai";
 
-  build-system = [ pdm-backend ];
+  build-system = [ hatchling ];
 
   pythonRelaxDeps = [
     # Each component release requests the exact latest core.
@@ -53,7 +53,7 @@ buildPythonPackage rec {
     filetype
     google-api-core
     google-auth
-    google-generativeai
+    google-genai
     langchain-core
     pydantic
   ];
diff --git a/pkgs/development/python-modules/langchain-mistralai/default.nix b/pkgs/development/python-modules/langchain-mistralai/default.nix
index 78984d407e34..fb5812ecbd34 100644
--- a/pkgs/development/python-modules/langchain-mistralai/default.nix
+++ b/pkgs/development/python-modules/langchain-mistralai/default.nix
@@ -24,14 +24,14 @@
 
 buildPythonPackage rec {
   pname = "langchain-mistralai";
-  version = "1.0.1";
+  version = "1.1.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-mistralai==${version}";
-    hash = "sha256-o9xIIcqsuTgWMeluk3EMY3hbB3wGjhYYfzbHizpNTo8=";
+    hash = "sha256-dmuDgKQW1yAz/8tjQx7LaUiuz5Sh4cAyd9nt33mCPbI=";
   };
 
   sourceRoot = "${src.name}/libs/partners/mistralai";
diff --git a/pkgs/development/python-modules/langchain-mongodb/default.nix b/pkgs/development/python-modules/langchain-mongodb/default.nix
index bf8e928a4ef9..ec1d410d2046 100644
--- a/pkgs/development/python-modules/langchain-mongodb/default.nix
+++ b/pkgs/development/python-modules/langchain-mongodb/default.nix
@@ -14,7 +14,9 @@
   lark,
   numpy,
   pymongo,
+  pymongo-search-utils,
 
+  # test
   freezegun,
   httpx,
   langchain-community,
@@ -33,14 +35,14 @@
 
 buildPythonPackage rec {
   pname = "langchain-mongodb";
-  version = "0.8.0";
+  version = "0.9.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain-mongodb";
     tag = "libs/langchain-mongodb/v${version}";
-    hash = "sha256-TpEiTQe4nZEhb7yWdm73oKaHGr58Ej3cNeD1sP5pAxA=";
+    hash = "sha256-g2FEowzGvP7a/zx/qn8EUxj5s6j/miMlzkRJEE64G0k=";
   };
 
   sourceRoot = "${src.name}/libs/langchain-mongodb";
@@ -61,6 +63,7 @@ buildPythonPackage rec {
     langchain-text-splitters
     numpy
     pymongo
+    pymongo-search-utils
   ];
 
   nativeCheckInputs = [
diff --git a/pkgs/development/python-modules/langchain-openai/default.nix b/pkgs/development/python-modules/langchain-openai/default.nix
index 3d2727d403af..41d4d63df586 100644
--- a/pkgs/development/python-modules/langchain-openai/default.nix
+++ b/pkgs/development/python-modules/langchain-openai/default.nix
@@ -33,14 +33,14 @@
 
 buildPythonPackage rec {
   pname = "langchain-openai";
-  version = "1.1.0";
+  version = "1.1.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain-openai==${version}";
-    hash = "sha256-dmuDgKQW1yAz/8tjQx7LaUiuz5Sh4cAyd9nt33mCPbI=";
+    hash = "sha256-WAYzgAWw0y86rBjb2JqLNeBCjVn3o7UfLoQvmQ4SKGU=";
   };
 
   sourceRoot = "${src.name}/libs/partners/openai";
diff --git a/pkgs/development/python-modules/langchain/default.nix b/pkgs/development/python-modules/langchain/default.nix
index 4994b47aa043..e7349f80a194 100644
--- a/pkgs/development/python-modules/langchain/default.nix
+++ b/pkgs/development/python-modules/langchain/default.nix
@@ -28,6 +28,7 @@
   blockbuster,
   freezegun,
   httpx,
+  langchain-tests,
   lark,
   pandas,
   pytest-asyncio,
@@ -45,14 +46,14 @@
 
 buildPythonPackage rec {
   pname = "langchain";
-  version = "1.0.2";
+  version = "1.1.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langchain";
     tag = "langchain==${version}";
-    hash = "sha256-NQra/L7OfnVyFTbGkSDcG30r8W733eAs9abII53wy4g=";
+    hash = "sha256-oW1Gn7ChRwUThrnkNBcGKn96sqRO84rSf75J2bNdBMY=";
   };
 
   sourceRoot = "${src.name}/libs/langchain_v1";
@@ -96,6 +97,7 @@ buildPythonPackage rec {
     freezegun
     httpx
     lark
+    langchain-tests
     pandas
     pytest-asyncio
     pytest-mock
@@ -129,8 +131,6 @@ buildPythonPackage rec {
   disabledTestPaths = [
     # Their configuration tests don't place nicely with nixpkgs
     "tests/unit_tests/test_pytest_config.py"
-    # comparison to magic time values, fails under load such as on Hydra
-    "tests/unit_tests/agents/middleware/test_tool_retry.py"
   ];
 
   pythonImportsCheck = [ "langchain" ];
diff --git a/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix b/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix
index 6abcb7699fed..931342884770 100644
--- a/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix
+++ b/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix
@@ -26,14 +26,14 @@
 
 buildPythonPackage rec {
   pname = "langgraph-checkpoint-postgres";
-  version = "3.0.1";
+  version = "3.0.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langgraph";
     tag = "checkpointpostgres==${version}";
-    hash = "sha256-bEaBrCsYbBTguNYrY/CibVj1d3SXjFKNToF4iyTj7ZI=";
+    hash = "sha256-V+S53ZYTCsaV7WMwuEMf+/NFyvy+8M6haO5oMf7o6wk=";
   };
 
   postgresqlTestSetupPost = ''
diff --git a/pkgs/development/python-modules/langgraph-checkpoint-sqlite/default.nix b/pkgs/development/python-modules/langgraph-checkpoint-sqlite/default.nix
index 7ffc5b24374d..5adfb6a627ab 100644
--- a/pkgs/development/python-modules/langgraph-checkpoint-sqlite/default.nix
+++ b/pkgs/development/python-modules/langgraph-checkpoint-sqlite/default.nix
@@ -22,14 +22,14 @@
 
 buildPythonPackage rec {
   pname = "langgraph-checkpoint-sqlite";
-  version = "3.0.0";
+  version = "3.0.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langgraph";
     tag = "checkpointsqlite==${version}";
-    hash = "sha256-YjO8KfDx7lZOps+dG7CPsY7LOqhKIBdfCXexPsR2pB4=";
+    hash = "sha256-9RHeTQC62fDUqKF4ZMr+LvxUhOwCch9r7cknW9RBjqw=";
   };
 
   sourceRoot = "${src.name}/libs/checkpoint-sqlite";
diff --git a/pkgs/development/python-modules/langgraph-sdk/default.nix b/pkgs/development/python-modules/langgraph-sdk/default.nix
index 0353c586466f..9873caff5b34 100644
--- a/pkgs/development/python-modules/langgraph-sdk/default.nix
+++ b/pkgs/development/python-modules/langgraph-sdk/default.nix
@@ -18,14 +18,14 @@
 
 buildPythonPackage rec {
   pname = "langgraph-sdk";
-  version = "0.2.12";
+  version = "0.2.15";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langgraph";
     tag = "sdk==${version}";
-    hash = "sha256-RD+P34ksvZj8cCv4GpTGB00mZUQK9sgIzzVZoTmDowk=";
+    hash = "sha256-+T7FBmsSAkteabmhDO475qO46bRJwyAammUBwX2Bo/g=";
   };
 
   sourceRoot = "${src.name}/libs/sdk-py";
diff --git a/pkgs/development/python-modules/langsmith/default.nix b/pkgs/development/python-modules/langsmith/default.nix
index 22fb68f3ea6b..83c26db7bbef 100644
--- a/pkgs/development/python-modules/langsmith/default.nix
+++ b/pkgs/development/python-modules/langsmith/default.nix
@@ -13,6 +13,7 @@
   pydantic,
   requests,
   requests-toolbelt,
+  uuid-utils,
   zstandard,
 
   # tests
@@ -31,14 +32,14 @@
 
 buildPythonPackage rec {
   pname = "langsmith";
-  version = "0.4.49";
+  version = "0.4.58";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langsmith-sdk";
     tag = "v${version}";
-    hash = "sha256-LOqSXL261+7xWRS8WI+uY3Ij4NemnIyfp3r+XJdmD+U=";
+    hash = "sha256-2Cxb7zQDUqAfzR59oVx7r33R88ISTmOSLsoU3Wf9HSQ=";
   };
 
   sourceRoot = "${src.name}/python";
@@ -53,6 +54,7 @@ buildPythonPackage rec {
     pydantic
     requests
     requests-toolbelt
+    uuid-utils
     zstandard
   ];
 
diff --git a/pkgs/development/python-modules/pymongo-search-utils/default.nix b/pkgs/development/python-modules/pymongo-search-utils/default.nix
new file mode 100644
index 000000000000..5702d09294f0
--- /dev/null
+++ b/pkgs/development/python-modules/pymongo-search-utils/default.nix
@@ -0,0 +1,43 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  hatchling,
+  pymongo,
+}:
+
+buildPythonPackage rec {
+  pname = "pymongo-search-utils";
+  version = "0.1.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "mongodb-labs";
+    repo = "pymongo-search-utils";
+    tag = version;
+    hash = "sha256-R0GYfVeLc0zfzfEGBil/AHyt20Y0bEo+eQ9wtdNwJL8=";
+  };
+
+  build-system = [
+    hatchling
+  ];
+
+  dependencies = [
+    pymongo
+  ];
+
+  # tests require mongodb running in the background
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "pymongo_search_utils"
+  ];
+
+  meta = {
+    description = "Vector Search utilities for PyMongo";
+    homepage = "https://github.com/mongodb-labs/pymongo-search-utils/";
+    changelog = "https://github.com/mongodb-labs/pymongo-search-utils/releases/tag/${src.tag}";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ sarahec ];
+  };
+}
diff --git a/pkgs/development/python-modules/uuid-utils/default.nix b/pkgs/development/python-modules/uuid-utils/default.nix
new file mode 100644
index 000000000000..122b3ee47087
--- /dev/null
+++ b/pkgs/development/python-modules/uuid-utils/default.nix
@@ -0,0 +1,57 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  maturin,
+  pytestCheckHook,
+  rustPlatform,
+}:
+
+buildPythonPackage rec {
+  pname = "uuid-utils";
+  version = "0.12.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "aminalaee";
+    repo = "uuid-utils";
+    tag = version;
+    hash = "sha256-oH+TA4UWet3ES247cQbl77hImcO5onfdn7uOIh2To4g=";
+  };
+
+  cargoDeps = rustPlatform.fetchCargoVendor {
+    inherit pname src version;
+    hash = "sha256-go032hrp47RlCIMkpUu8trIIRJX6g5yMHELH5l/KG7E=";
+  };
+
+  nativeBuildInputs = with rustPlatform; [
+    cargoSetupHook
+    maturinBuildHook
+  ];
+
+  build-system = [
+    maturin
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # AssertionError comparing node numbers
+    # https://github.com/aminalaee/uuid-utils/issues/99
+    "test_getnode"
+  ];
+
+  pythonImportsCheck = [
+    "uuid_utils"
+  ];
+
+  meta = {
+    description = "Python bindings to Rust UUID";
+    homepage = "https://github.com/aminalaee/uuid-utils";
+    changelog = "https://github.com/aminalaee/uuid-utils/releases/tag/${src.tag}";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ sarahec ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 31fa5a190bf3..b091bd7ce673 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -13832,6 +13832,8 @@ self: super: with self; {
 
   pymongo-inmemory = callPackage ../development/python-modules/pymongo-inmemory { };
 
+  pymongo-search-utils = callPackage ../development/python-modules/pymongo-search-utils { };
+
   pymonoprice = callPackage ../development/python-modules/pymonoprice { };
 
   pymoo = callPackage ../development/python-modules/pymoo { };
@@ -20045,6 +20047,8 @@ self: super: with self; {
 
   utitools = callPackage ../development/python-modules/utitools { };
 
+  uuid-utils = callPackage ../development/python-modules/uuid-utils { };
+
   uuid6 = callPackage ../development/python-modules/uuid6 { };
 
   uv = callPackage ../development/python-modules/uv { inherit (pkgs) uv; };