From 2a137bf49133b94e13e9dad7507fc141eba62056 Mon Sep 17 00:00:00 2001
From: Sydney Runkle <54324534+sydney-runkle@users.noreply.github.com>
Date: Wed, 11 Mar 2026 18:18:08 -0400
Subject: [PATCH] release(langchain_v1): 1.2.12 (#35770)

---
 libs/langchain_v1/langchain/__init__.py |  2 +-
 libs/langchain_v1/pyproject.toml        |  4 ++--
 libs/langchain_v1/uv.lock               | 10 +++++-----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/libs/langchain_v1/langchain/__init__.py b/libs/langchain_v1/langchain/__init__.py
index 29ce3675a59..d8ac216dcf9 100644
--- a/libs/langchain_v1/langchain/__init__.py
+++ b/libs/langchain_v1/langchain/__init__.py
@@ -1,3 +1,3 @@
 """Main entrypoint into LangChain."""
 
-__version__ = "1.2.11"
+__version__ = "1.2.12"
diff --git a/libs/langchain_v1/pyproject.toml b/libs/langchain_v1/pyproject.toml
index 5b5c3ab5106..9ac0f0ddfd4 100644
--- a/libs/langchain_v1/pyproject.toml
+++ b/libs/langchain_v1/pyproject.toml
@@ -21,11 +21,11 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 
-version = "1.2.11"
+version = "1.2.12"
 requires-python = ">=3.10.0,<4.0.0"
 dependencies = [
     "langchain-core>=1.2.10,<2.0.0",
-    "langgraph>=1.1.0,<1.3.0",
+    "langgraph>=1.1.1,<1.2.0",
     "pydantic>=2.7.4,<3.0.0",
 ]
 
diff --git a/libs/langchain_v1/uv.lock b/libs/langchain_v1/uv.lock
index 682f831db46..75bad71437d 100644
--- a/libs/langchain_v1/uv.lock
+++ b/libs/langchain_v1/uv.lock
@@ -1875,7 +1875,7 @@ wheels = [
 
 [[package]]
 name = "langchain"
-version = "1.2.11"
+version = "1.2.12"
 source = { editable = "." }
 dependencies = [
     { name = "langchain-core" },
@@ -1983,7 +1983,7 @@ requires-dist = [
     { name = "langchain-perplexity", marker = "extra == 'perplexity'" },
     { name = "langchain-together", marker = "extra == 'together'" },
     { name = "langchain-xai", marker = "extra == 'xai'" },
-    { name = "langgraph", specifier = ">=1.1.0,<1.3.0" },
+    { name = "langgraph", specifier = ">=1.1.1,<1.2.0" },
     { name = "pydantic", specifier = ">=2.7.4,<3.0.0" },
 ]
 provides-extras = ["community", "anthropic", "openai", "azure-ai", "google-vertexai", "google-genai", "fireworks", "ollama", "together", "mistralai", "huggingface", "groq", "aws", "deepseek", "xai", "perplexity"]
@@ -2535,7 +2535,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.1.0"
+version = "1.1.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "langchain-core" },
@@ -2545,9 +2545,9 @@ dependencies = [
     { name = "pydantic" },
     { name = "xxhash" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/c6/de/be274968aa1ce40a109e0e638718d4e31872e97dbc84d3b5c7ab81a18d4e/langgraph-1.1.0.tar.gz", hash = "sha256:2decaef5d6716166dc5c13e0fdf65637e5a1837ef4c94fd82b6bcf2115cb5c78", size = 542647, upload-time = "2026-03-10T12:46:34.156Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6d/1a/6dbad0c87fb39a58e5ced85297511cc4bcad06cc420b20898eecafece2a2/langgraph-1.1.1.tar.gz", hash = "sha256:cd6282efc657c955b41bff6bd9693de58137ad18f7e7f16b4d17c7d2118d53e1", size = 544040, upload-time = "2026-03-11T22:14:47.845Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/61/0c/4920a1c5d2d1059f706b547019091e4da74ab30cd95fe114af737a89236f/langgraph-1.1.0-py3-none-any.whl", hash = "sha256:7d29e01312340c9c7c09eb0178db5edd0514c3f35929fa5b32a247fcd9a9cd65", size = 167249, upload-time = "2026-03-10T12:46:32.546Z" },
+    { url = "https://files.pythonhosted.org/packages/dc/c1/572187bb61a534050ef2d5030e7abe46b19694ec106604fe12ddcb8672c7/langgraph-1.1.1-py3-none-any.whl", hash = "sha256:d0cc8d347131cbfc010e65aad9b0f1afbd0e151f470c288bec1f3df8336c50c6", size = 167502, upload-time = "2026-03-11T22:14:46.121Z" },
 ]
 
 [[package]]