release(langgraph): 1.2.14 (#9215)

Bumps langgraph from 1.2.13 to 1.2.14.

Raises the minimum `langgraph-sdk` to 0.4.6, which percent-encodes
`thread_id` and `assistant_id` in thread stream requests (#9213). Remote
graph streaming uses those thread stream classes, so this keeps it on a
version with the fix.

Also includes:

- Keep DeltaChannel counters on every `update_state` path (#9142)
- Keep an `update_state` on an older checkpoint out of its other
branches (#9165)
- Fork before replaying an update checkpoint the thread moved past
(#9170)

libs/langgraph/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph"
-version = "1.2.13"
+version = "1.2.14"
 description = "Building stateful, multi-actor applications with LLMs"
 authors = []
 requires-python = ">=3.10"
@@ -26,7 +26,7 @@ classifiers = [
 dependencies = [
     "langchain-core>=1.4.7,<2",
     "langgraph-checkpoint>=4.1.0,<5.0.0",
-    "langgraph-sdk>=0.4.2,<0.5.0",
+    "langgraph-sdk>=0.4.6,<0.5.0",
     "langgraph-prebuilt>=1.1.0,<1.2.0",
     "xxhash>=3.5.0",
     "pydantic>=2.7.4",

libs/langgraph/uv.lock

@@ -1437,7 +1437,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.13"
+version = "1.2.14"
 source = { editable = "." }
 dependencies = [
     { name = "langchain-core" },

libs/prebuilt/uv.lock

@@ -286,7 +286,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.13"
+version = "1.2.14"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },

libs/sdk-py/uv.lock

@@ -301,7 +301,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.13"
+version = "1.2.14"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },