release(langgraph): 1.0.0-alpha.3 (#6094)

basically - for conditional edges, we use this to merge the updates from
state with the state object (before the actual update really occurs in
the tick.after)

otherwise - an emphemeral value will actually last through the logic in
the conditional edge of the node after

.github/workflows/_integration_test.yml

@@ -87,3 +87,27 @@ jobs:
         working-directory: libs/cli/js-examples
         run: |
           langgraph build -t langgraph-test-e
+
+      - name: Build JS monorepo service
+        if: steps.changed-files.outputs.all
+        working-directory: libs/cli/js-monorepo-example
+        run: |
+          langgraph build -t langgraph-test-f -c apps/agent/langgraph.json --build-command "yarn run turbo build" --install-command "yarn install"
+
+      - name: Build Python monorepo service
+        if: steps.changed-files.outputs.all
+        working-directory: libs/cli/python-monorepo-example
+        run: |
+          langgraph build -t langgraph-test-g -c apps/agent/langgraph.json
+          cp apps/agent/.env.example apps/agent/.env
+          if [ -n "${{ secrets.LANGSMITH_API_KEY }}" ]; then echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> apps/agent/.env; fi
+          timeout 60 python ../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-g -c apps/agent/langgraph.json
+
+      - name: Build and test prerelease reqs service
+        if: steps.changed-files.outputs.all
+        working-directory: libs/cli/examples/graph_prerelease_reqs
+        run: |
+          langgraph build -t langgraph-test-h
+          cp ../.env.example .env
+          if [ -n "${{ secrets.LANGSMITH_API_KEY }}" ]; then echo "LANGSMITH_API_KEY=${{ secrets.LANGSMITH_API_KEY }}" >> .env; fi
+          timeout 60 python ../../../../.github/scripts/run_langgraph_cli_test.py -t langgraph-test-h

.github/workflows/_test.yml

@@ -17,7 +17,6 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"

.github/workflows/_test_langgraph.yml

@@ -12,7 +12,6 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"

.github/workflows/_test_release.yml

@@ -16,7 +16,6 @@ permissions:
 
 jobs:
   build:
-    if: github.ref == 'refs/heads/main'
     runs-on: ubuntu-latest
 
     outputs:

.github/workflows/release.yml

@@ -16,7 +16,6 @@ env:
 
 jobs:
   build:
-    if: github.ref == 'refs/heads/main'
     runs-on: ubuntu-latest
 
     outputs:

.github/workflows/uv_lock_ugprade.yml

@@ -22,7 +22,7 @@ jobs:
         uses: astral-sh/setup-uv@v6
         with:
           # use minimum supported Python version
-          python-version: "3.9"
+          python-version: "3.10"
           enable-cache: true
           cache-suffix: "uv-lock-upgrade"
           

docs/docs/cloud/deployment/cloud.md

@@ -99,8 +99,8 @@ Starting from the `LangGraph Platform` view...
 1. In the top-right corner, select the gear icon (`Deployment Settings`).
 1. Update the `Git Branch` to the desired branch.
 1. Check/uncheck checkbox to `Automatically update deployment on push to branch`.
-    1. Branch creation/deletion and tag creation/deletion events will not trigger an update. Only pushes to an existing branch will trigger an update.
-    1. Pushes in quick succession to a branch will not trigger subsequent updates. In the future, this functionality may be changed/improved.
+1. Branch creation/deletion and tag creation/deletion events will not trigger an update. Only pushes to an existing branch will trigger an update.
+1. Pushes in quick succession to a branch will queue subsequent updates. Once a build completes, the most recent commit will begin building and the other queued builds will be skipped.
 
 ## Add or Remove GitHub Repositories
 

docs/docs/cloud/reference/api/openapi.json

@@ -29,6 +29,10 @@
       "name": "Store",
       "description": "Store is an API for managing persistent key-value store (long-term memory) that is available from any thread."
     },
+    {
+      "name": "A2A",
+      "description": "Agent-to-Agent Protocol related endpoints for exposing assistants as A2A-compliant agents."
+    },
     {
       "name": "MCP",
       "description": "Model Context Protocol related endpoints for exposing an agent as an MCP server."
@@ -1550,6 +1554,29 @@
             },
             "name": "Last-Event-ID",
             "in": "header"
+          },
+          {
+            "required": false,
+            "schema": {
+              "anyOf": [
+                {
+                  "type": "string",
+                  "enum": ["lifecycle", "run_modes", "state_update"]
+                },
+                {
+                  "type": "array",
+                  "items": {
+                    "type": "string",
+                    "enum": ["lifecycle", "run_modes", "state_update"]
+                  }
+                }
+              ],
+              "default": ["run_modes"],
+              "title": "Stream Modes",
+              "description": "Stream modes to control which events are returned. 'lifecycle' returns only run start/end events, 'run_modes' returns all run events (default behavior), 'state_update' returns only state update events."
+            },
+            "name": "stream_modes",
+            "in": "query"
           }
         ],
         "responses": {
@@ -3159,6 +3186,195 @@
         }
       }
     },
+    "/a2a/{assistant_id}": {
+      "post": {
+        "operationId": "post_a2a",
+        "summary": "A2A Post",
+        "description": "Communicate with an assistant using the Agent-to-Agent Protocol.\nSends a JSON-RPC 2.0 message to the assistant.\n\n- **Request**: Provide an object with `jsonrpc`, `id`, `method`, and optional `params`.\n- **Response**: Returns a JSON-RPC response with task information or error.\n\n**Supported Methods:**\n- `message/send`: Send a message to the assistant\n- `tasks/get`: Get the status and result of a task\n\n**Notes:**\n- Supports threaded conversations via thread context\n- Messages can contain text and data parts\n- Tasks run asynchronously and return completion status\n",
+        "parameters": [
+          {
+            "name": "assistant_id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "format": "uuid"
+            },
+            "description": "The ID of the assistant to communicate with"
+          },
+          {
+            "name": "Accept",
+            "in": "header",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "enum": ["application/json"]
+            },
+            "description": "Must be application/json"
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "jsonrpc": {
+                    "type": "string",
+                    "enum": ["2.0"],
+                    "description": "JSON-RPC version"
+                  },
+                  "id": {
+                    "type": "string",
+                    "description": "Request identifier"
+                  },
+                  "method": {
+                    "type": "string",
+                    "enum": ["message/send", "tasks/get"],
+                    "description": "The method to invoke"
+                  },
+                  "params": {
+                    "type": "object",
+                    "description": "Method parameters",
+                    "oneOf": [
+                      {
+                        "title": "Message Send Parameters",
+                        "properties": {
+                          "message": {
+                            "type": "object",
+                            "properties": {
+                              "role": {
+                                "type": "string",
+                                "enum": ["user", "assistant"],
+                                "description": "Message role"
+                              },
+                              "parts": {
+                                "type": "array",
+                                "items": {
+                                  "oneOf": [
+                                    {
+                                      "title": "Text Part",
+                                      "type": "object",
+                                      "properties": {
+                                        "kind": {
+                                          "type": "string",
+                                          "enum": ["text"]
+                                        },
+                                        "text": {
+                                          "type": "string"
+                                        }
+                                      },
+                                      "required": ["kind", "text"]
+                                    },
+                                    {
+                                      "title": "Data Part", 
+                                      "type": "object",
+                                      "properties": {
+                                        "kind": {
+                                          "type": "string",
+                                          "enum": ["data"]
+                                        },
+                                        "data": {
+                                          "type": "object"
+                                        }
+                                      },
+                                      "required": ["kind", "data"]
+                                    }
+                                  ]
+                                },
+                                "description": "Message parts"
+                              },
+                              "messageId": {
+                                "type": "string",
+                                "description": "Unique message identifier"
+                              }
+                            },
+                            "required": ["role", "parts", "messageId"]
+                          },
+                          "thread": {
+                            "type": "object",
+                            "properties": {
+                              "threadId": {
+                                "type": "string",
+                                "description": "Thread identifier for conversation context"
+                              }
+                            },
+                            "description": "Optional thread context"
+                          }
+                        },
+                        "required": ["message"]
+                      },
+                      {
+                        "title": "Task Get Parameters",
+                        "properties": {
+                          "taskId": {
+                            "type": "string",
+                            "description": "Task identifier to retrieve"
+                          }
+                        },
+                        "required": ["taskId"]
+                      }
+                    ]
+                  }
+                },
+                "required": ["jsonrpc", "id", "method"]
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "JSON-RPC response",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "jsonrpc": {
+                      "type": "string",
+                      "enum": ["2.0"]
+                    },
+                    "id": {
+                      "type": "string"
+                    },
+                    "result": {
+                      "type": "object",
+                      "description": "Success result containing task information or task details"
+                    },
+                    "error": {
+                      "type": "object",
+                      "properties": {
+                        "code": {
+                          "type": "integer"
+                        },
+                        "message": {
+                          "type": "string"
+                        }
+                      },
+                      "description": "Error information if request failed"
+                    }
+                  },
+                  "required": ["jsonrpc", "id"]
+                }
+              }
+            }
+          },
+          "400": {
+            "description": "Bad request - invalid JSON-RPC or missing Accept header"
+          },
+          "404": {
+            "description": "Assistant not found"
+          },
+          "500": {
+            "description": "Internal server error"
+          }
+        },
+        "tags": [
+          "A2A"
+        ]
+      }
+    },
     "/mcp/": {
       "post": {
         "operationId": "post_mcp",
@@ -4413,6 +4629,17 @@
             "title": "Checkpoint During",
             "description": "Whether to checkpoint during the run.",
             "default": false
+          },
+          "durability": {
+            "type": "string",
+            "enum": [
+              "sync",
+              "async",
+              "exit"
+            ],
+            "title": "Durability",
+            "description": "Durability level for the run. Must be one of 'sync', 'async', or 'exit'.",
+            "default": "async"
           }
         },
         "type": "object",
@@ -4649,6 +4876,17 @@
             "title": "Checkpoint During",
             "description": "Whether to checkpoint during the run.",
             "default": false
+          },
+          "durability": {
+            "type": "string",
+            "enum": [
+              "sync",
+              "async",
+              "exit"
+            ],
+            "title": "Durability",
+            "description": "Durability level for the run. Must be one of 'sync', 'async', or 'exit'.",
+            "default": "async"
           }
         },
         "type": "object",
@@ -4777,6 +5015,12 @@
       },
       "ThreadSearchRequest": {
         "properties": {
+          "ids": {
+            "type": "array",
+            "items": {"type": "string", "format": "uuid"},
+            "title": "Ids",
+            "description": "List of thread IDs to include. Others are excluded."
+          },
           "metadata": {
             "type": "object",
             "title": "Metadata",
@@ -5017,11 +5261,30 @@
             "type": "object",
             "title": "Metadata",
             "description": "Metadata to merge with existing thread metadata."
+          },
+          "ttl": {
+            "type": "object",
+            "title": "TTL",
+            "description": "The time-to-live for the thread.",
+            "properties": {
+              "strategy": {
+                "type": "string",
+                "enum": [
+                  "delete"
+                ],
+                "description": "The TTL strategy. 'delete' removes the entire thread.",
+                "default": "delete"
+              },
+              "ttl": {
+                "type": "number",
+                "description": "The time-to-live in minutes from now until thread should be swept."
+              }
+            }
           }
         },
         "type": "object",
         "title": "ThreadPatch",
-        "description": "Payload for creating a thread."
+        "description": "Payload for updating a thread."
       },
       "ThreadStateCheckpointRequest": {
         "properties": {

docs/docs/cloud/reference/cli.md

@@ -483,19 +483,19 @@ The LangGraph CLI requires a JSON configuration file that follows this [schema](
 
     RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 pip install --no-cache-dir -c /api/constraints.txt langchain_community langchain_anthropic langchain_openai wikipedia scikit-learn
 
-    ADD ./graphs /deps/__outer_graphs/src
+    ADD ./graphs /deps/outer-graphs/src
     RUN set -ex && \
         for line in '[project]' \
                     'name = "graphs"' \
                     'version = "0.1"' \
                     '[tool.setuptools.package-data]' \
                     '"*" = ["**/*"]'; do \
-            echo "$line" >> /deps/__outer_graphs/pyproject.toml; \
+            echo "$line" >> /deps/outer-graphs/pyproject.toml; \
         done
 
     RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 pip install --no-cache-dir -c /api/constraints.txt -e /deps/*
 
-    ENV LANGSERVE_GRAPHS='{"agent": "/deps/__outer_graphs/src/agent.py:graph", "storm": "/deps/__outer_graphs/src/storm.py:graph"}'
+    ENV LANGSERVE_GRAPHS='{"agent": "/deps/outer-graphs/src/agent.py:graph", "storm": "/deps/outer-graphs/src/storm.py:graph"}'
     ```
 
     ???+ note "Updating your langgraph.json file"

docs/docs/concepts/low_level.md

@@ -1040,7 +1040,7 @@ def node_a(state: State, runtime: Runtime[ContextSchema]):
     ...
 ```
 
-See [this guide](../how-tos/graph-api.ipynb#add-runtime-configuration) for a full breakdown on configuration.
+See [this guide](../how-tos/graph-api.md#add-runtime-configuration) for a full breakdown on configuration.
 :::
 
 :::js

libs/cli/examples/graph_prerelease_reqs/agent.py

@@ -0,0 +1,95 @@
+from collections.abc import Sequence
+from typing import Annotated, Literal, TypedDict
+
+from langchain.chat_models import init_chat_model
+from langchain_community.tools.tavily_search import TavilySearchResults
+from langchain_core.messages import BaseMessage
+from langchain_openai import ChatOpenAI
+from langgraph.graph import END, StateGraph, add_messages
+from langgraph.prebuilt import ToolNode
+
+tools = [TavilySearchResults(max_results=1)]
+
+model_anth = init_chat_model("claude-3-7-sonnet-20250219", model_provider="anthropic")
+model_oai = ChatOpenAI(temperature=0)
+
+model_anth = model_anth.bind_tools(tools)
+model_oai = model_oai.bind_tools(tools)
+
+
+class AgentState(TypedDict):
+    messages: Annotated[Sequence[BaseMessage], add_messages]
+
+
+# Define the function that determines whether to continue or not
+def should_continue(state):
+    messages = state["messages"]
+    last_message = messages[-1]
+    # If there are no tool calls, then we finish
+    if not last_message.tool_calls:
+        return "end"
+    # Otherwise if there is, we continue
+    else:
+        return "continue"
+
+
+# Define the function that calls the model
+def call_model(state, config):
+    if config["configurable"].get("model", "anthropic") == "anthropic":
+        model = model_anth
+    else:
+        model = model_oai
+    messages = state["messages"]
+    response = model.invoke(messages)
+    # We return a list, because this will get added to the existing list
+    return {"messages": [response]}
+
+
+# Define the function to execute tools
+tool_node = ToolNode(tools)
+
+
+class ContextSchema(TypedDict):
+    model: Literal["anthropic", "openai"]
+
+
+# Define a new graph
+workflow = StateGraph(AgentState, context_schema=ContextSchema)
+
+# Define the two nodes we will cycle between
+workflow.add_node("agent", call_model)
+workflow.add_node("action", tool_node)
+
+# Set the entrypoint as `agent`
+# This means that this node is the first one called
+workflow.set_entry_point("agent")
+
+# We now add a conditional edge
+workflow.add_conditional_edges(
+    # First, we define the start node. We use `agent`.
+    # This means these are the edges taken after the `agent` node is called.
+    "agent",
+    # Next, we pass in the function that will determine which node is called next.
+    should_continue,
+    # Finally we pass in a mapping.
+    # The keys are strings, and the values are other nodes.
+    # END is a special node marking that the graph should finish.
+    # What will happen is we will call `should_continue`, and then the output of that
+    # will be matched against the keys in this mapping.
+    # Based on which one it matches, that node will then be called.
+    {
+        # If `tools`, then we call the tool node.
+        "continue": "action",
+        # Otherwise we finish.
+        "end": END,
+    },
+)
+
+# We now add a normal edge from `tools` to `agent`.
+# This means that after `tools` is called, `agent` node is called next.
+workflow.add_edge("action", "agent")
+
+# Finally, we compile it!
+# This compiles it into a LangChain Runnable,
+# meaning you can use it as you would any other runnable
+graph = workflow.compile()

libs/cli/examples/graph_prerelease_reqs/langgraph.json

@@ -0,0 +1,11 @@
+{
+    "python_version": "3.12",
+    "dependencies": [
+      "."
+    ],
+    "graphs": {
+      "agent": "./agent.py:graph"
+    },
+    "env": "../.env"
+  }
+  

libs/cli/examples/graph_prerelease_reqs/requirements.txt

@@ -0,0 +1,6 @@
+requests
+langchain_anthropic
+langchain_openai
+langchain_community
+langchain
+langgraph==1.0.0a2

libs/cli/js-monorepo-example/.eslintrc.cjs

@@ -0,0 +1,62 @@
+module.exports = {
+  extends: [
+    "eslint:recommended",
+    "prettier",
+    "plugin:@typescript-eslint/recommended",
+  ],
+  parserOptions: {
+    ecmaVersion: 12,
+    parser: "@typescript-eslint/parser",
+    project: "./tsconfig.json",
+    sourceType: "module",
+  },
+  plugins: ["import", "@typescript-eslint", "no-instanceof"],
+  ignorePatterns: [
+    ".eslintrc.cjs",
+    "scripts",
+    "src/utils/lodash/*",
+    "node_modules",
+    "dist",
+    "dist-cjs",
+    "*.js",
+    "*.cjs",
+    "*.d.ts",
+  ],
+  rules: {
+    "no-process-env": 2,
+    "no-instanceof/no-instanceof": 2,
+    "@typescript-eslint/explicit-module-boundary-types": 0,
+    "@typescript-eslint/no-empty-function": 0,
+    "@typescript-eslint/no-shadow": 0,
+    "@typescript-eslint/no-empty-interface": 0,
+    "@typescript-eslint/no-use-before-define": ["error", "nofunc"],
+    "@typescript-eslint/no-unused-vars": ["warn", { args: "none" }],
+    "@typescript-eslint/no-floating-promises": "error",
+    "@typescript-eslint/no-misused-promises": "error",
+    camelcase: 0,
+    "class-methods-use-this": 0,
+    "import/extensions": [2, "ignorePackages"],
+    "import/no-extraneous-dependencies": [
+      "error",
+      { devDependencies: ["**/*.test.ts"] },
+    ],
+    "import/no-unresolved": 0,
+    "import/prefer-default-export": 0,
+    "keyword-spacing": "error",
+    "max-classes-per-file": 0,
+    "max-len": 0,
+    "no-await-in-loop": 0,
+    "no-bitwise": 0,
+    "no-console": 0,
+    "no-restricted-syntax": 0,
+    "no-shadow": 0,
+    "no-continue": 0,
+    "no-underscore-dangle": 0,
+    "no-use-before-define": 0,
+    "no-useless-constructor": 0,
+    "no-return-await": 0,
+    "consistent-return": 0,
+    "no-else-return": 0,
+    "new-cap": ["error", { properties: false, capIsNew: false }],
+  },
+};

libs/cli/js-monorepo-example/apps/agent/langgraph.json

@@ -0,0 +1,7 @@
+{
+  "node_version": "20",
+  "graphs": {
+    "agent": "./src/graph.ts:graph"
+  },
+  "env": "../../.env"
+}

libs/cli/js-monorepo-example/apps/agent/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "@js-monorepo-example/agent",
+  "version": "0.0.1",
+  "type": "module",
+  "main": "src/graph.ts",
+  "scripts": {
+    "build": "tsc",
+    "clean": "rm -rf dist"
+  },
+  "dependencies": {
+    "@js-monorepo-example/shared": "*",
+    "@langchain/core": "^0.3.2",
+    "@langchain/langgraph": "^0.2.5"
+  },
+  "devDependencies": {
+    "typescript": "^5.3.3"
+  }
+}

libs/cli/js-monorepo-example/apps/agent/src/graph.ts

@@ -0,0 +1,47 @@
+/**
+ * Simple LangGraph.js example for monorepo testing
+ */
+import { StateGraph } from "@langchain/langgraph";
+import { RunnableConfig } from "@langchain/core/runnables";
+import { StateAnnotation } from "./state.js";
+import { getGreeting } from "@js-monorepo-example/shared";
+
+/**
+ * Simple node that uses the shared library
+ */
+const callModel = async (
+  state: typeof StateAnnotation.State,
+  _config: RunnableConfig,
+): Promise<typeof StateAnnotation.Update> => {
+  // Use functions from the shared library
+  const greeting = getGreeting();
+
+  return {
+    messages: [
+      {
+        role: "assistant",
+        content: `${greeting}`,
+      },
+    ],
+  };
+};
+
+/**
+ * Simple routing function
+ */
+export const route = (
+  state: typeof StateAnnotation.State,
+): "__end__" | "callModel" => {
+  if (state.messages.length > 0) {
+    return "__end__";
+  }
+  return "callModel";
+};
+
+// Create the graph
+const builder = new StateGraph(StateAnnotation)
+  .addNode("callModel", callModel)
+  .addEdge("__start__", "callModel")
+  .addConditionalEdges("callModel", route);
+
+export const graph = builder.compile();

libs/cli/js-monorepo-example/apps/agent/src/state.ts

@@ -0,0 +1,15 @@
+import { BaseMessage, BaseMessageLike } from "@langchain/core/messages";
+import { Annotation, messagesStateReducer } from "@langchain/langgraph";
+
+/**
+ * Simple state annotation for the agent
+ */
+export const StateAnnotation = Annotation.Root({
+  /**
+   * Messages track the primary execution state of the agent.
+   */
+  messages: Annotation<BaseMessage[], BaseMessageLike[]>({
+    reducer: messagesStateReducer,
+    default: () => [],
+  }),
+});

libs/cli/js-monorepo-example/apps/agent/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "rootDir": "./src"
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}

libs/cli/js-monorepo-example/libs/shared/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "@js-monorepo-example/shared",
+  "version": "0.0.1",
+  "type": "module",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "clean": "rm -rf dist"
+  },
+  "devDependencies": {
+    "typescript": "^5.3.3"
+  }
+}

libs/cli/js-monorepo-example/libs/shared/src/index.ts

@@ -0,0 +1,6 @@
+/**
+ * Simple utility functions for monorepo testing
+ */
+export function getGreeting(): string {
+  return "Hello from shared library!";
+}

libs/cli/js-monorepo-example/libs/shared/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "rootDir": "./src"
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}

libs/cli/js-monorepo-example/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "js-monorepo-example",
+  "version": "0.0.1",
+  "packageManager": "yarn@1.22.22",
+  "description": "A simple monorepo example for LangGraph integration testing.",
+  "private": true,
+  "workspaces": [
+    "libs/*",
+    "apps/*"
+  ],
+  "type": "module",
+  "scripts": {
+    "build": "turbo build",
+    "clean": "turbo clean",
+    "test": "turbo test",
+    "format": "prettier --write .",
+    "lint": "eslint 'apps/**/*.ts' 'libs/**/*.ts'"
+  },
+  "devDependencies": {
+    "turbo": "^2.5.0",
+    "typescript": "^5.3.3",
+    "@tsconfig/recommended": "^1.0.7",
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.9.1",
+    "eslint": "^8.41.0",
+    "eslint-config-prettier": "^8.8.0",
+    "eslint-plugin-import": "^2.27.5",
+    "eslint-plugin-no-instanceof": "^1.0.1",
+    "eslint-plugin-prettier": "^4.2.1",
+    "@typescript-eslint/eslint-plugin": "^5.59.8",
+    "@typescript-eslint/parser": "^5.59.8",
+    "prettier": "^3.3.3"
+  }
+}

libs/cli/js-monorepo-example/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "extends": "@tsconfig/recommended",
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "node",
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "declaration": true,
+    "outDir": "./dist"
+  },
+  "include": ["apps/**/*", "libs/**/*"],
+  "exclude": ["node_modules", "dist"]
+}

libs/cli/js-monorepo-example/turbo.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://turbo.build/schema.json",
+  "tasks": {
+    "build": {
+      "dependsOn": ["^build"],
+      "outputs": ["dist/**"]
+    },
+    "clean": {
+      "dependsOn": ["^clean"]
+    },
+    "test": {
+      "dependsOn": ["^test"]
+    }
+  }
+}

libs/cli/langgraph_cli/__init__.py

@@ -1 +1 @@
-__version__ = "0.3.8"
+__version__ = "0.4.2"

libs/cli/langgraph_cli/cli.py

@@ -303,6 +303,8 @@ def _build(
     pull: bool,
     tag: str,
     passthrough: Sequence[str] = (),
+    install_command: Optional[str] = None,
+    build_command: Optional[str] = None,
 ):
     # pull latest images
     if pull:
@@ -322,22 +324,38 @@ def _build(
         "-t",
         tag,
     ]
+    # determine build context: use current directory for JS projects, config parent for Python
+    is_js_project = config_json.get("node_version") and not config_json.get(
+        "python_version"
+    )
+    # build/install commands only apply to JS projects for now
+    # without install/build command, JS projects will follow the old behavior
+    if is_js_project and (build_command or install_command):
+        build_context = str(pathlib.Path.cwd())
+    else:
+        build_context = str(config.parent)
+
     # apply config
     stdin, additional_contexts = langgraph_cli.config.config_to_docker(
-        config, config_json, base_image, api_version
+        config,
+        config_json,
+        base_image,
+        api_version,
+        install_command,
+        build_command,
+        build_context,
     )
     # add additional_contexts
     if additional_contexts:
         for k, v in additional_contexts.items():
             args.extend(["--build-context", f"{k}={v}"])
-    # run docker build
     runner.run(
         subp_exec(
             "docker",
             "build",
             *args,
             *passthrough,
-            str(config.parent),
+            build_context,
             input=stdin,
             verbose=True,
         )
@@ -366,6 +384,14 @@ def _build(
     "\n    --base-image langchain/langgraph-server:0.2  # Pin to a minor version (Python)",
 )
 @OPT_API_VERSION
+@click.option(
+    "--install-command",
+    help="Custom install command to run from the build context root. If not provided, auto-detects based on package manager files.",
+)
+@click.option(
+    "--build-command",
+    help="Custom build command to run from the langgraph.json directory. If not provided, uses default build process.",
+)
 @click.argument("docker_build_args", nargs=-1, type=click.UNPROCESSED)
 @cli.command(
     help="📦 Build LangGraph API server Docker image.",
@@ -381,6 +407,8 @@ def build(
     api_version: Optional[str],
     pull: bool,
     tag: str,
+    install_command: Optional[str],
+    build_command: Optional[str],
 ):
     with Runner() as runner, Progress(message="Pulling...") as set:
         if shutil.which("docker") is None:
@@ -397,6 +425,8 @@ def build(
             pull,
             tag,
             docker_build_args,
+            install_command,
+            build_command,
         )
 
 

libs/cli/langgraph_cli/config.py

@@ -357,6 +357,8 @@ class HttpConfig(TypedDict, total=False):
 
     You can include or exclude headers as configurable values to condition your
     agent's behavior or permissions on a request's headers."""
+    logging_headers: Optional[ConfigurableHeaderConfig]
+    """Optional. Defines which headers are excluded from logging."""
 
 
 class Config(TypedDict, total=False):
@@ -911,10 +913,10 @@ def _assemble_local_deps(config_path: pathlib.Path, config: Config) -> LocalDeps
                         "Rename the directory to use it as flat-layout package."
                     )
                 check_reserved(resolved.name, local_dep)
-                container_path = f"/deps/__outer_{resolved.name}/{resolved.name}"
+                container_path = f"/deps/outer-{resolved.name}/{resolved.name}"
             else:
                 # src layout
-                container_path = f"/deps/__outer_{resolved.name}/src"
+                container_path = f"/deps/outer-{resolved.name}/src"
                 for file in files:
                     rfile = resolved / file
                     if (
@@ -1254,7 +1256,7 @@ def python_config_to_docker(
         else:
             pip_installer = "pip"
     if pip_installer == "uv":
-        install_cmd = "uv pip install --system"
+        install_cmd = "uv pip install --system --prerelease=allow"
     elif pip_installer == "pip":
         install_cmd = "pip install"
     else:
@@ -1284,7 +1286,7 @@ def python_config_to_docker(
     if local_deps.pip_reqs:
         pip_reqs_str = os.linesep.join(
             (
-                f"COPY --from=__outer_{reqpath.name} requirements.txt {destpath}"
+                f"COPY --from=outer-{reqpath.name} requirements.txt {destpath}"
                 if reqpath.parent in local_deps.additional_contexts
                 else f"ADD {reqpath.relative_to(config_path.parent)} {destpath}"
             )
@@ -1303,7 +1305,7 @@ def python_config_to_docker(
     faux_pkgs_str = f"{os.linesep}{os.linesep}".join(
         (
             f"""# -- Adding non-package dependency {fullpath.name} --
-COPY --from=__outer_{fullpath.name} . {destpath}"""
+COPY --from=outer-{fullpath.name} . {destpath}"""
             if fullpath in local_deps.additional_contexts
             else f"""# -- Adding non-package dependency {fullpath.name} --
 ADD {relpath} {destpath}"""
@@ -1318,7 +1320,7 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_{fullpath.name}/pyproject.toml; \\
+        echo "$line" >> /deps/outer-{fullpath.name}/pyproject.toml; \\
     done
 # -- End of non-package dependency {fullpath.name} --"""
         for fullpath, (relpath, destpath) in local_deps.faux_pkgs.items()
@@ -1421,7 +1423,7 @@ ADD {relpath} /deps/{name}
         if p in local_deps.real_pkgs:
             name = local_deps.real_pkgs[p][1]
         elif p in local_deps.faux_pkgs:
-            name = f"__outer_{p.name}"
+            name = f"outer-{p.name}"
         else:
             raise RuntimeError(f"Unknown additional context: {p}")
         additional_contexts[name] = str(p)
@@ -1434,9 +1436,28 @@ def node_config_to_docker(
     config: Config,
     base_image: str,
     api_version: Optional[str] = None,
+    install_command: Optional[str] = None,
+    build_command: Optional[str] = None,
+    build_context: Optional[str] = None,
 ) -> tuple[str, dict[str, str]]:
-    faux_path = f"/deps/{config_path.parent.name}"
-    install_cmd = _get_node_pm_install_cmd(config_path, config)
+    # Calculate paths for monorepo support
+    if build_context:
+        relative_workdir = _calculate_relative_workdir(config_path, build_context)
+        container_name = pathlib.Path(build_context).name
+        if relative_workdir:
+            faux_path = f"/deps/{container_name}/{relative_workdir}"
+        else:
+            faux_path = f"/deps/{container_name}"
+    else:
+        # Backward compatibility: use the original behavior
+        faux_path = f"/deps/{config_path.parent.name}"
+
+    # Use custom install command or auto-detect
+    if install_command:
+        install_cmd = install_command
+    else:
+        install_cmd = _get_node_pm_install_cmd(config_path, config)
+
     image_str = docker_tag(config, base_image, api_version)
 
     env_vars: list[str] = []
@@ -1463,20 +1484,35 @@ def node_config_to_docker(
 
     env_vars.append(f"ENV LANGSERVE_GRAPHS='{json.dumps(config['graphs'])}'")
 
+    # For monorepo support, we need to handle install and build commands differently
+    if build_context:
+        # Monorepo case: install from root, build from config directory
+        container_root = f"/deps/{pathlib.Path(build_context).name}"
+        install_step = f"RUN cd {container_root} && {install_cmd}"
+
+        if build_command:
+            build_step = f"RUN cd {faux_path} && {build_command}"
+        else:
+            build_step = 'RUN (test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not found, skipping") || tsx /api/langgraph_api/js/build.mts'
+    else:
+        # Original behavior: everything happens in the same directory
+        install_step = f"RUN cd {faux_path} && {install_cmd}"
+        build_step = 'RUN (test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not found, skipping") || tsx /api/langgraph_api/js/build.mts'
+
     docker_file_contents = [
         f"FROM {image_str}",
         "",
         os.linesep.join(config["dockerfile_lines"]),
         "",
-        f"ADD . {faux_path}",
+        f"ADD . {faux_path if not build_context else container_root}",
         "",
-        f"RUN cd {faux_path} && {install_cmd}",
+        install_step,
         "",
         os.linesep.join(env_vars),
         "",
         f"WORKDIR {faux_path}",
         "",
-        'RUN (test ! -f /api/langgraph_api/js/build.mts && echo "Prebuild script not found, skipping") || tsx /api/langgraph_api/js/build.mts',
+        build_step,
     ]
 
     return os.linesep.join(docker_file_contents), {}
@@ -1524,16 +1560,42 @@ def docker_tag(
     return f"{base_image}:{full_tag}"
 
 
+def _calculate_relative_workdir(config_path: pathlib.Path, build_context: str) -> str:
+    """Calculate the relative path from build context to langgraph.json directory."""
+    config_dir = config_path.parent.resolve()
+    build_context_path = pathlib.Path(build_context).resolve()
+
+    try:
+        relative_path = config_dir.relative_to(build_context_path)
+        return str(relative_path) if str(relative_path) != "." else ""
+    except ValueError as _:
+        raise ValueError(
+            f"Configuration file {config_path} is not under the build context {build_context}. "
+            f"Please run the command from a directory that contains your langgraph.json file, "
+        ) from None
+
+
 def config_to_docker(
     config_path: pathlib.Path,
     config: Config,
     base_image: Optional[str] = None,
     api_version: Optional[str] = None,
+    install_command: Optional[str] = None,
+    build_command: Optional[str] = None,
+    build_context: Optional[str] = None,
 ) -> tuple[str, dict[str, str]]:
     base_image = base_image or default_base_image(config)
 
     if config.get("node_version") and not config.get("python_version"):
-        return node_config_to_docker(config_path, config, base_image, api_version)
+        return node_config_to_docker(
+            config_path,
+            config,
+            base_image,
+            api_version,
+            install_command,
+            build_command,
+            build_context,
+        )
 
     return python_config_to_docker(config_path, config, base_image, api_version)
 

libs/cli/pyproject.toml

@@ -19,8 +19,8 @@ dependencies = [
 path = "langgraph_cli/__init__.py"
 [project.optional-dependencies]
 inmem = [
-    "langgraph-api>=0.2.120,<0.4.0 ; python_version >= '3.11'",
-    "langgraph-runtime-inmem>=0.6.8 ; python_version >= '3.11'",
+    "langgraph-api>=0.3,<0.5.0 ; python_version >= '3.11'",
+    "langgraph-runtime-inmem>=0.7 ; python_version >= '3.11'",
     "python-dotenv>=0.8.0",
 ]
 

libs/cli/python-monorepo-example/apps/agent/langgraph.json

@@ -0,0 +1,7 @@
+{
+  "dependencies": [".", "../../libs/shared", "../../libs/common"],
+  "graphs": {
+    "agent": "./src/agent/graph.py:graph"
+  },
+  "env": ".env"
+}

libs/cli/python-monorepo-example/apps/agent/pyproject.toml

@@ -0,0 +1,19 @@
+[project]
+name = "agent"
+version = "0.0.1"
+description = "Agent for the Python monorepo"
+authors = [
+    { name = "Developer", email = "dev@example.com" },
+]
+license = { text = "MIT" }
+requires-python = ">=3.11,<4.0"
+
+[build-system]
+requires = ["setuptools>=73.0.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+packages = ["agent"]
+
+[tool.setuptools.package-dir]
+"agent" = "src/agent"

libs/cli/python-monorepo-example/apps/agent/src/agent/__init__.py

@@ -0,0 +1 @@
+"""Agent package."""

libs/cli/python-monorepo-example/apps/agent/src/agent/graph.py

@@ -0,0 +1,40 @@
+"""Simple LangGraph agent for monorepo testing."""
+
+from common import get_common_prefix
+from langchain_core.messages import AIMessage
+from langgraph.graph import END, START, StateGraph
+from shared import get_dummy_message
+
+from agent.state import State
+
+
+def call_model(state: State) -> dict:
+    """Simple node that uses the shared libraries."""
+    # Use functions from both shared packages
+    dummy_message = get_dummy_message()
+    prefix = get_common_prefix()
+
+    message = AIMessage(content=f"{prefix} Agent says: {dummy_message}")
+
+    return {"messages": [message]}
+
+
+def should_continue(state: State):
+    """Conditional edge - end after first message."""
+    messages = state["messages"]
+    if len(messages) > 0:
+        return END
+    return "call_model"
+
+
+# Build the graph
+workflow = StateGraph(State)
+
+# Add the node
+workflow.add_node("call_model", call_model)
+
+# Add edges
+workflow.add_edge(START, "call_model")
+workflow.add_conditional_edges("call_model", should_continue)
+
+graph = workflow.compile()

libs/cli/python-monorepo-example/apps/agent/src/agent/state.py

@@ -0,0 +1,13 @@
+"""State definition for the agent."""
+
+from collections.abc import Sequence
+from typing import Annotated, TypedDict
+
+from langchain_core.messages import BaseMessage
+from langgraph.graph.message import add_messages
+
+
+class State(TypedDict):
+    """The state of the agent."""
+
+    messages: Annotated[Sequence[BaseMessage], add_messages]

libs/cli/python-monorepo-example/libs/common/__init__.py

@@ -0,0 +1,5 @@
+"""Common helper functions package."""
+
+from .helpers import get_common_prefix
+
+__all__ = ["get_common_prefix"]

libs/cli/python-monorepo-example/libs/common/helpers.py

@@ -0,0 +1,6 @@
+"""Common helper functions."""
+
+
+def get_common_prefix() -> str:
+    """Get a common prefix for messages."""
+    return "[COMMON]"

libs/cli/python-monorepo-example/libs/shared/pyproject.toml

@@ -0,0 +1,20 @@
+[project]
+name = "shared"
+version = "0.0.1"
+description = "Shared utilities for the Python monorepo"
+authors = [
+    { name = "Developer", email = "dev@example.com" },
+]
+license = { text = "MIT" }
+requires-python = ">=3.11,<4.0"
+dependencies = []
+
+[build-system]
+requires = ["setuptools>=73.0.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+packages = ["shared"]
+
+[tool.setuptools.package-dir]
+"shared" = "src/shared"

libs/cli/python-monorepo-example/libs/shared/src/shared/__init__.py

@@ -0,0 +1,5 @@
+"""Shared utilities package."""
+
+from .utils import get_dummy_message
+
+__all__ = ["get_dummy_message"]

libs/cli/python-monorepo-example/libs/shared/src/shared/utils.py

@@ -0,0 +1,6 @@
+"""Shared utility functions."""
+
+
+def get_dummy_message() -> str:
+    """Get a dummy message for testing."""
+    return "Hello from shared library!"

libs/cli/python-monorepo-example/pyproject.toml

@@ -0,0 +1,46 @@
+[project]
+name = "python-monorepo-example"
+version = "0.0.1"
+description = "A Python monorepo example with LangGraph agents and shared packages"
+authors = [
+    { name = "Developer", email = "dev@example.com" },
+]
+license = { text = "MIT" }
+requires-python = ">=3.11,<4.0"
+dependencies = [
+    "langgraph>=0.6.0,<0.7.0",
+    "langchain-core>=0.2.14",
+]
+
+[tool.uv.workspace]
+members = ["apps/*", "libs/shared"]
+
+[tool.uv.sources]
+shared = { workspace = true }
+
+[project.optional-dependencies]
+dev = ["mypy>=1.11.1", "ruff>=0.6.1"]
+
+[build-system]
+requires = ["setuptools>=73.0.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.ruff]
+lint.select = [
+    "E",    # pycodestyle
+    "F",    # pyflakes
+    "I",    # isort
+    "D",    # pydocstyle
+    "UP",
+]
+lint.ignore = [
+    "D100",  # Missing docstring in public module
+    "D101",  # Missing docstring in public class
+    "D102",  # Missing docstring in public method
+    "D103",  # Missing docstring in public function
+    "D104",  # Missing docstring in public package
+    "D105",  # Missing docstring in magic method
+]
+
+[tool.ruff.lint.pydocstyle]
+convention = "google"

libs/cli/schemas/schema.json

@@ -576,6 +576,17 @@
         "disable_threads": {
           "type": "boolean",
           "description": "Optional. If True, /threads routes are removed.\n\nDefault is False.\n"
+        },
+        "logging_headers": {
+          "anyOf": [
+            {
+              "$ref": "#/$defs/ConfigurableHeaderConfig"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Optional. Defines which headers are excluded from logging."
         }
       },
       "required": []

libs/cli/schemas/schema.v0.json

@@ -576,6 +576,17 @@
         "disable_threads": {
           "type": "boolean",
           "description": "Optional. If True, /threads routes are removed.\n\nDefault is False.\n"
+        },
+        "logging_headers": {
+          "anyOf": [
+            {
+              "$ref": "#/$defs/ConfigurableHeaderConfig"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Optional. Defines which headers are excluded from logging."
         }
       },
       "required": []

libs/cli/tests/unit_tests/cli/test_cli.py

@@ -15,7 +15,7 @@ from langgraph_cli.docker import DEFAULT_POSTGRES_URI, DockerCapabilities, Versi
 from langgraph_cli.util import clean_empty_lines
 
 FORMATTED_CLEANUP_LINES = _get_pip_cleanup_lines(
-    install_cmd="uv pip install --system",
+    install_cmd="uv pip install --system --prerelease=allow",
     to_uninstall=("pip", "setuptools", "wheel"),
     pip_installer="uv",
 )
@@ -149,7 +149,7 @@ services:
                 COPY --from=cli_1 . /deps/cli_1
                 # -- End of local package ../../.. --
                 # -- Installing all local dependencies --
-                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
                 # -- End of local dependencies install --
                 ENV LANGSERVE_GRAPHS='{{"agent": "agent.py:graph"}}'
 {textwrap.indent(textwrap.dedent(FORMATTED_CLEANUP_LINES), "                ")}
@@ -570,7 +570,7 @@ def test_build_generate_proper_build_context():
                 catch_exceptions=True,
             )
 
-        build_context_pattern = re.compile(r"--build-context\s+(\w+)=([^\s]+)")
+        build_context_pattern = re.compile(r"--build-context\s+([\w-]+)=([^\s]+)")
 
         build_contexts = re.findall(build_context_pattern, result.output)
         assert len(build_contexts) == 2, (

libs/cli/tests/unit_tests/test_config.py

@@ -20,7 +20,7 @@ from langgraph_cli.config import (
 from langgraph_cli.util import clean_empty_lines
 
 FORMATTED_CLEANUP_LINES = _get_pip_cleanup_lines(
-    install_cmd="uv pip install --system",
+    install_cmd="uv pip install --system --prerelease=allow",
     to_uninstall=("pip", "setuptools", "wheel"),
     pip_installer="uv",
 )
@@ -421,14 +421,14 @@ def test_config_to_docker_simple():
     expected_docker_stdin = f"""\
 FROM langchain/langgraph-api:3.11
 # -- Installing local requirements --
-COPY --from=__outer_requirements.txt requirements.txt /deps/__outer_graphs_reqs_a/graphs_reqs_a/requirements.txt
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -r /deps/__outer_graphs_reqs_a/graphs_reqs_a/requirements.txt
+COPY --from=outer-requirements.txt requirements.txt /deps/outer-graphs_reqs_a/graphs_reqs_a/requirements.txt
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -r /deps/outer-graphs_reqs_a/graphs_reqs_a/requirements.txt
 # -- End of local requirements install --
 # -- Adding local package ../../examples --
 COPY --from=examples . /deps/examples
 # -- End of local package ../../examples --
 # -- Adding non-package dependency unit_tests --
-ADD . /deps/__outer_unit_tests/unit_tests
+ADD . /deps/outer-unit_tests/unit_tests
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "unit_tests"' \\
@@ -438,11 +438,11 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
     done
 # -- End of non-package dependency unit_tests --
 # -- Adding non-package dependency graphs_reqs_a --
-COPY --from=__outer_graphs_reqs_a . /deps/__outer_graphs_reqs_a/graphs_reqs_a
+COPY --from=outer-graphs_reqs_a . /deps/outer-graphs_reqs_a/graphs_reqs_a
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "graphs_reqs_a"' \\
@@ -452,21 +452,21 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_graphs_reqs_a/pyproject.toml; \\
+        echo "$line" >> /deps/outer-graphs_reqs_a/pyproject.toml; \\
     done
 # -- End of non-package dependency graphs_reqs_a --
 # -- Installing all local dependencies --
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
 ENV LANGGRAPH_HTTP='{{"app": "/deps/examples/my_app.py:app"}}'
-ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 {FORMATTED_CLEANUP_LINES}
-WORKDIR /deps/__outer_unit_tests/unit_tests\
+WORKDIR /deps/outer-unit_tests/unit_tests\
 """
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
 
     assert additional_contexts == {
-        "__outer_graphs_reqs_a": str(
+        "outer-graphs_reqs_a": str(
             (pathlib.Path(__file__).parent / "../../examples/graphs_reqs_a").resolve()
         ),
         "examples": str((pathlib.Path(__file__).parent / "../../examples").resolve()),
@@ -484,7 +484,7 @@ def test_config_to_docker_outside_path():
         """\
 FROM langchain/langgraph-api:3.11
 # -- Adding non-package dependency unit_tests --
-ADD . /deps/__outer_unit_tests/unit_tests
+ADD . /deps/outer-unit_tests/unit_tests
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "unit_tests"' \\
@@ -494,11 +494,11 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
     done
 # -- End of non-package dependency unit_tests --
 # -- Adding non-package dependency tests --
-COPY --from=__outer_tests . /deps/__outer_tests/tests
+COPY --from=outer-tests . /deps/outer-tests/tests
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "tests"' \\
@@ -508,22 +508,22 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_tests/pyproject.toml; \\
+        echo "$line" >> /deps/outer-tests/pyproject.toml; \\
     done
 # -- End of non-package dependency tests --
 # -- Installing all local dependencies --
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
-ENV LANGSERVE_GRAPHS='{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}'
+ENV LANGSERVE_GRAPHS='{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}'
 """
         + FORMATTED_CLEANUP_LINES
         + """
-WORKDIR /deps/__outer_unit_tests/unit_tests\
+WORKDIR /deps/outer-unit_tests/unit_tests\
 """
     )
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
     assert additional_contexts == {
-        "__outer_tests": str(pathlib.Path(__file__).parent.parent.absolute()),
+        "outer-tests": str(pathlib.Path(__file__).parent.parent.absolute()),
     }
 
 
@@ -545,7 +545,7 @@ def test_config_to_docker_pipconfig():
 FROM langchain/langgraph-api:3.11
 ADD pipconfig.txt /pipconfig.txt
 # -- Adding non-package dependency unit_tests --
-ADD . /deps/__outer_unit_tests/unit_tests
+ADD . /deps/outer-unit_tests/unit_tests
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "unit_tests"' \\
@@ -555,17 +555,17 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
     done
 # -- End of non-package dependency unit_tests --
 # -- Installing all local dependencies --
-RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
-ENV LANGSERVE_GRAPHS='{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}'
+ENV LANGSERVE_GRAPHS='{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}'
 """
         + FORMATTED_CLEANUP_LINES
         + """
-WORKDIR /deps/__outer_unit_tests/unit_tests\
+WORKDIR /deps/outer-unit_tests/unit_tests\
 """
     )
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
@@ -607,7 +607,7 @@ def test_config_to_docker_local_deps():
     expected_docker_stdin = f"""\
 FROM langchain/langgraph-api-custom:3.11
 # -- Adding non-package dependency graphs --
-ADD ./graphs /deps/__outer_graphs/src
+ADD ./graphs /deps/outer-graphs/src
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "graphs"' \\
@@ -617,13 +617,13 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_graphs/pyproject.toml; \\
+        echo "$line" >> /deps/outer-graphs/pyproject.toml; \\
     done
 # -- End of non-package dependency graphs --
 # -- Installing all local dependencies --
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
-ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_graphs/src/agent.py:graph"}}'
+ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-graphs/src/agent.py:graph"}}'
 {FORMATTED_CLEANUP_LINES}\
 """
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
@@ -657,7 +657,7 @@ dependencies = ["langchain"]"""
 ADD . /deps/unit_tests
 # -- End of local package . --
 # -- Installing all local dependencies --
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
 ENV LANGSERVE_GRAPHS='{"agent": "/deps/unit_tests/graphs/agent.py:graph"}'
 """
@@ -689,9 +689,9 @@ def test_config_to_docker_end_to_end():
 ARG meow
 ARG foo
 ADD pipconfig.txt /pipconfig.txt
-RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt langchain langchain_openai
+RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt langchain langchain_openai
 # -- Adding non-package dependency graphs --
-ADD ./graphs/ /deps/__outer_graphs/src
+ADD ./graphs/ /deps/outer-graphs/src
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "graphs"' \\
@@ -701,13 +701,13 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_graphs/pyproject.toml; \\
+        echo "$line" >> /deps/outer-graphs/pyproject.toml; \\
     done
 # -- End of non-package dependency graphs --
 # -- Installing all local dependencies --
-RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PIP_CONFIG_FILE=/pipconfig.txt PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
-ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_graphs/src/agent.py:graph"}}'
+ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-graphs/src/agent.py:graph"}}'
 {FORMATTED_CLEANUP_LINES}"""
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
     assert additional_contexts == {}
@@ -797,7 +797,7 @@ def test_config_to_docker_gen_ui_python():
     expected_docker_stdin = f"""FROM langchain/langgraph-api:3.11
 RUN /storage/install-node.sh
 # -- Adding non-package dependency unit_tests --
-ADD . /deps/__outer_unit_tests/unit_tests
+ADD . /deps/outer-unit_tests/unit_tests
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "unit_tests"' \\
@@ -807,21 +807,21 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
     done
 # -- End of non-package dependency unit_tests --
 # -- Installing all local dependencies --
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
 ENV LANGGRAPH_UI='{{"agent": "./graphs/agent.ui.jsx"}}'
 ENV LANGGRAPH_UI_CONFIG='{{"shared": ["nuqs"]}}'
-ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 # -- Installing JS dependencies --
 ENV NODE_VERSION=20
-RUN cd /deps/__outer_unit_tests/unit_tests && npm i && tsx /api/langgraph_api/js/build.mts
+RUN cd /deps/outer-unit_tests/unit_tests && npm i && tsx /api/langgraph_api/js/build.mts
 # -- End of JS dependencies install --
 {FORMATTED_CLEANUP_LINES}
-WORKDIR /deps/__outer_unit_tests/unit_tests"""
+WORKDIR /deps/outer-unit_tests/unit_tests"""
 
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
     assert additional_contexts == {}
@@ -843,7 +843,7 @@ def test_config_to_docker_multiplatform():
     expected_docker_stdin = f"""FROM langchain/langgraph-api:3.11
 RUN /storage/install-node.sh
 # -- Adding non-package dependency unit_tests --
-ADD . /deps/__outer_unit_tests/unit_tests
+ADD . /deps/outer-unit_tests/unit_tests
 RUN set -ex && \\
     for line in '[project]' \\
                 'name = "unit_tests"' \\
@@ -853,19 +853,19 @@ RUN set -ex && \\
                 '[build-system]' \\
                 'requires = ["setuptools>=61"]' \\
                 'build-backend = "setuptools.build_meta"'; do \\
-        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
     done
 # -- End of non-package dependency unit_tests --
 # -- Installing all local dependencies --
-RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
 # -- End of local dependencies install --
-ENV LANGSERVE_GRAPHS='{{"python": "/deps/__outer_unit_tests/unit_tests/multiplatform/python.py:graph", "js": "/deps/__outer_unit_tests/unit_tests/multiplatform/js.mts:graph"}}'
+ENV LANGSERVE_GRAPHS='{{"python": "/deps/outer-unit_tests/unit_tests/multiplatform/python.py:graph", "js": "/deps/outer-unit_tests/unit_tests/multiplatform/js.mts:graph"}}'
 # -- Installing JS dependencies --
 ENV NODE_VERSION=22
-RUN cd /deps/__outer_unit_tests/unit_tests && npm i && tsx /api/langgraph_api/js/build.mts
+RUN cd /deps/outer-unit_tests/unit_tests && npm i && tsx /api/langgraph_api/js/build.mts
 # -- End of JS dependencies install --
 {FORMATTED_CLEANUP_LINES}
-WORKDIR /deps/__outer_unit_tests/unit_tests"""
+WORKDIR /deps/outer-unit_tests/unit_tests"""
 
     assert clean_empty_lines(actual_docker_stdin) == expected_docker_stdin
     assert additional_contexts == {}
@@ -887,7 +887,7 @@ def test_config_to_docker_pip_installer():
     docker_auto, _ = config_to_docker(
         PATH_TO_CONFIG, config_auto, "langchain/langgraph-api:0.2.47"
     )
-    assert "uv pip install --system" in docker_auto
+    assert "uv pip install --system --prerelease=allow" in docker_auto
     assert "rm /usr/bin/uv /usr/bin/uvx" in docker_auto
 
     # Test explicit pip setting
@@ -895,7 +895,7 @@ def test_config_to_docker_pip_installer():
     docker_pip, _ = config_to_docker(
         PATH_TO_CONFIG, config_pip, "langchain/langgraph-api:0.2.47"
     )
-    assert "uv pip install --system" not in docker_pip
+    assert "uv pip install --system --prerelease=allow" not in docker_pip
     assert "pip install" in docker_pip
     assert "rm /usr/bin/uv" not in docker_pip
 
@@ -904,7 +904,7 @@ def test_config_to_docker_pip_installer():
     docker_uv, _ = config_to_docker(
         PATH_TO_CONFIG, config_uv, "langchain/langgraph-api:0.2.47"
     )
-    assert "uv pip install --system" in docker_uv
+    assert "uv pip install --system --prerelease=allow" in docker_uv
     assert "rm /usr/bin/uv /usr/bin/uvx" in docker_uv
 
     # Test auto behavior with older image (should use pip)
@@ -914,7 +914,7 @@ def test_config_to_docker_pip_installer():
     docker_auto_old, _ = config_to_docker(
         PATH_TO_CONFIG, config_auto_old, "langchain/langgraph-api:0.2.46"
     )
-    assert "uv pip install --system" not in docker_auto_old
+    assert "uv pip install --system --prerelease=allow" not in docker_auto_old
     assert "pip install" in docker_auto_old
     assert "rm /usr/bin/uv" not in docker_auto_old
 
@@ -923,7 +923,7 @@ def test_config_to_docker_pip_installer():
     docker_default, _ = config_to_docker(
         PATH_TO_CONFIG, config_default, "langchain/langgraph-api:0.2.47"
     )
-    assert "uv pip install --system" in docker_default
+    assert "uv pip install --system --prerelease=allow" in docker_default
 
 
 def test_config_retain_build_tools():
@@ -984,7 +984,7 @@ def test_config_to_compose_simple_config():
             dockerfile_inline: |
                 FROM langchain/langgraph-api:3.11
                 # -- Adding non-package dependency unit_tests --
-                ADD . /deps/__outer_unit_tests/unit_tests
+                ADD . /deps/outer-unit_tests/unit_tests
                 RUN set -ex && \\
                     for line in '[project]' \\
                                 'name = "unit_tests"' \\
@@ -994,15 +994,15 @@ def test_config_to_compose_simple_config():
                                 '[build-system]' \\
                                 'requires = ["setuptools>=61"]' \\
                                 'build-backend = "setuptools.build_meta"'; do \\
-                        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+                        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
                     done
                 # -- End of non-package dependency unit_tests --
                 # -- Installing all local dependencies --
-                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
                 # -- End of local dependencies install --
-                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 {textwrap.indent(textwrap.dedent(FORMATTED_CLEANUP_LINES), "                ")}
-                WORKDIR /deps/__outer_unit_tests/unit_tests
+                WORKDIR /deps/outer-unit_tests/unit_tests
         """
     actual_compose_stdin = config_to_compose(
         PATH_TO_CONFIG,
@@ -1025,7 +1025,7 @@ def test_config_to_compose_env_vars():
             dockerfile_inline: |
                 FROM langchain/langgraph-api-custom:3.11
                 # -- Adding non-package dependency unit_tests --
-                ADD . /deps/__outer_unit_tests/unit_tests
+                ADD . /deps/outer-unit_tests/unit_tests
                 RUN set -ex && \\
                     for line in '[project]' \\
                                 'name = "unit_tests"' \\
@@ -1035,15 +1035,15 @@ def test_config_to_compose_env_vars():
                                 '[build-system]' \\
                                 'requires = ["setuptools>=61"]' \\
                                 'build-backend = "setuptools.build_meta"'; do \\
-                        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+                        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
                     done
                 # -- End of non-package dependency unit_tests --
                 # -- Installing all local dependencies --
-                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
                 # -- End of local dependencies install --
-                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 {textwrap.indent(textwrap.dedent(FORMATTED_CLEANUP_LINES), "                ")}
-                WORKDIR /deps/__outer_unit_tests/unit_tests
+                WORKDIR /deps/outer-unit_tests/unit_tests
         """
     openai_api_key = "key"
     actual_compose_stdin = config_to_compose(
@@ -1070,7 +1070,7 @@ def test_config_to_compose_env_file():
             dockerfile_inline: |
                 FROM langchain/langgraph-api:3.11
                 # -- Adding non-package dependency unit_tests --
-                ADD . /deps/__outer_unit_tests/unit_tests
+                ADD . /deps/outer-unit_tests/unit_tests
                 RUN set -ex && \\
                     for line in '[project]' \\
                                 'name = "unit_tests"' \\
@@ -1080,15 +1080,15 @@ def test_config_to_compose_env_file():
                                 '[build-system]' \\
                                 'requires = ["setuptools>=61"]' \\
                                 'build-backend = "setuptools.build_meta"'; do \\
-                        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+                        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
                     done
                 # -- End of non-package dependency unit_tests --
                 # -- Installing all local dependencies --
-                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
                 # -- End of local dependencies install --
-                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 {textwrap.indent(textwrap.dedent(FORMATTED_CLEANUP_LINES), "                ")}
-                WORKDIR /deps/__outer_unit_tests/unit_tests
+                WORKDIR /deps/outer-unit_tests/unit_tests
         """
     actual_compose_stdin = config_to_compose(
         PATH_TO_CONFIG,
@@ -1108,7 +1108,7 @@ def test_config_to_compose_watch():
             dockerfile_inline: |
                 FROM langchain/langgraph-api:3.11
                 # -- Adding non-package dependency unit_tests --
-                ADD . /deps/__outer_unit_tests/unit_tests
+                ADD . /deps/outer-unit_tests/unit_tests
                 RUN set -ex && \\
                     for line in '[project]' \\
                                 'name = "unit_tests"' \\
@@ -1118,15 +1118,15 @@ def test_config_to_compose_watch():
                                 '[build-system]' \\
                                 'requires = ["setuptools>=61"]' \\
                                 'build-backend = "setuptools.build_meta"'; do \\
-                        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+                        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
                     done
                 # -- End of non-package dependency unit_tests --
                 # -- Installing all local dependencies --
-                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
                 # -- End of local dependencies install --
-                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 {textwrap.indent(textwrap.dedent(FORMATTED_CLEANUP_LINES), "                ")}
-                WORKDIR /deps/__outer_unit_tests/unit_tests
+                WORKDIR /deps/outer-unit_tests/unit_tests
         
         develop:
             watch:
@@ -1155,7 +1155,7 @@ def test_config_to_compose_end_to_end():
             dockerfile_inline: |
                 FROM langchain/langgraph-api:3.11
                 # -- Adding non-package dependency unit_tests --
-                ADD . /deps/__outer_unit_tests/unit_tests
+                ADD . /deps/outer-unit_tests/unit_tests
                 RUN set -ex && \\
                     for line in '[project]' \\
                                 'name = "unit_tests"' \\
@@ -1165,15 +1165,15 @@ def test_config_to_compose_end_to_end():
                                 '[build-system]' \\
                                 'requires = ["setuptools>=61"]' \\
                                 'build-backend = "setuptools.build_meta"'; do \\
-                        echo "$line" >> /deps/__outer_unit_tests/pyproject.toml; \\
+                        echo "$line" >> /deps/outer-unit_tests/pyproject.toml; \\
                     done
                 # -- End of non-package dependency unit_tests --
                 # -- Installing all local dependencies --
-                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --no-cache-dir -c /api/constraints.txt -e /deps/*
+                RUN PYTHONDONTWRITEBYTECODE=1 uv pip install --system --prerelease=allow --no-cache-dir -c /api/constraints.txt -e /deps/*
                 # -- End of local dependencies install --
-                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/__outer_unit_tests/unit_tests/agent.py:graph"}}'
+                ENV LANGSERVE_GRAPHS='{{"agent": "/deps/outer-unit_tests/unit_tests/agent.py:graph"}}'
 {textwrap.indent(textwrap.dedent(FORMATTED_CLEANUP_LINES), "                ")}
-                WORKDIR /deps/__outer_unit_tests/unit_tests
+                WORKDIR /deps/outer-unit_tests/unit_tests
         
         develop:
             watch:

libs/cli/uv.lock

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+version = "0.4.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "cloudpickle", marker = "python_full_version >= '3.11'" },
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 [[package]]
@@ -561,8 +561,8 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "click", specifier = ">=8.1.7" },
-    { name = "langgraph-api", marker = "python_full_version >= '3.11' and extra == 'inmem'", specifier = ">=0.2.120,<0.4.0" },
-    { name = "langgraph-runtime-inmem", marker = "python_full_version >= '3.11' and extra == 'inmem'", specifier = ">=0.6.8" },
+    { name = "langgraph-api", marker = "python_full_version >= '3.11' and extra == 'inmem'", specifier = ">=0.3,<0.5.0" },
+    { name = "langgraph-runtime-inmem", marker = "python_full_version >= '3.11' and extra == 'inmem'", specifier = ">=0.7" },
     { name = "langgraph-sdk", marker = "python_full_version >= '3.11'", specifier = ">=0.1.0" },
     { name = "python-dotenv", marker = "extra == 'inmem'", specifier = ">=0.8.0" },
 ]
@@ -595,7 +595,7 @@ wheels = [
 
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-version = "0.8.0"
+version = "0.9.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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@@ -605,27 +605,27 @@ dependencies = [
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-version = "0.2.2"
+version = "0.2.3"
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+    { url = "https://files.pythonhosted.org/packages/06/51/e6e3eb6b3cbad394d00cad128155781bc01e672ff01c5fc1c8a627b35a92/langgraph_sdk-0.2.3-py3-none-any.whl", hash = "sha256:059edfe2f62708c2e54239e170f5a33f796d456dbdbde64276c16cac8b97ba99", size = 52603, upload-time = "2025-08-21T23:01:05.379Z" },
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 name = "langsmith"
-version = "0.4.15"
+version = "0.4.17"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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@@ -636,9 +636,9 @@ dependencies = [
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 [[package]]
@@ -1256,15 +1256,15 @@ wheels = [
 
 [[package]]
 name = "starlette"
-version = "0.47.2"
+version = "0.47.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio", marker = "python_full_version >= '3.11'" },
     { name = "typing-extensions", marker = "python_full_version >= '3.11' and python_full_version < '3.13'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/04/57/d062573f391d062710d4088fa1369428c38d51460ab6fedff920efef932e/starlette-0.47.2.tar.gz", hash = "sha256:6ae9aa5db235e4846decc1e7b79c4f346adf41e9777aebeb49dfd09bbd7023d8", size = 2583948, upload-time = "2025-07-20T17:31:58.522Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/15/b9/cc3017f9a9c9b6e27c5106cc10cc7904653c3eec0729793aec10479dd669/starlette-0.47.3.tar.gz", hash = "sha256:6bc94f839cc176c4858894f1f8908f0ab79dfec1a6b8402f6da9be26ebea52e9", size = 2584144, upload-time = "2025-08-24T13:36:42.122Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/ce/fd/901cfa59aaa5b30a99e16876f11abe38b59a1a2c51ffb3d7142bb6089069/starlette-0.47.3-py3-none-any.whl", hash = "sha256:89c0778ca62a76b826101e7c709e70680a1699ca7da6b44d38eb0a7e61fe4b51", size = 72991, upload-time = "2025-08-24T13:36:40.887Z" },
 ]
 
 [[package]]
@@ -1335,11 +1335,11 @@ wheels = [
 
 [[package]]
 name = "typing-extensions"
-version = "4.14.1"
+version = "4.15.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/98/5a/da40306b885cc8c09109dc2e1abd358d5684b1425678151cdaed4731c822/typing_extensions-4.14.1.tar.gz", hash = "sha256:38b39f4aeeab64884ce9f74c94263ef78f3c22467c8724005483154c26648d36", size = 107673, upload-time = "2025-07-04T13:28:34.16Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/72/94/1a15dd82efb362ac84269196e94cf00f187f7ed21c242792a923cdb1c61f/typing_extensions-4.15.0.tar.gz", hash = "sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466", size = 109391, upload-time = "2025-08-25T13:49:26.313Z" }
 wheels = [
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 [[package]]

libs/langgraph/.claude/settings.local.json

@@ -5,7 +5,9 @@
       "Bash(python:*)",
       "Bash(grep:*)",
       "Bash(sed:*)",
-      "Bash(awk:*)"
+      "Bash(awk:*)",
+      "Bash(uv run mypy:*)",
+      "Bash(uv run:*)"
     ],
     "deny": []
   }

libs/langgraph/langgraph/graph/state.py

@@ -25,7 +25,7 @@ from typing import (
 
 from langchain_core.runnables import Runnable, RunnableConfig
 from pydantic import BaseModel, TypeAdapter
-from typing_extensions import Self, Unpack, is_typeddict
+from typing_extensions import NotRequired, Required, Self, Unpack, is_typeddict
 
 from langgraph._internal._constants import (
     INTERRUPT,
@@ -1334,6 +1334,12 @@ def _get_channel(
 def _get_channel(
     name: str, annotation: Any, *, allow_managed: bool = True
 ) -> BaseChannel | ManagedValueSpec:
+    # Strip out Required and NotRequired wrappers
+    if hasattr(annotation, "__origin__") and annotation.__origin__ in (
+        Required,
+        NotRequired,
+    ):
+        annotation = annotation.__args__[0]
     if manager := _is_field_managed_value(name, annotation):
         if allow_managed:
             return manager

libs/langgraph/langgraph/pregel/_algo.py

@@ -194,15 +194,12 @@ def local_read(
         for c, v in task.writes:
             if c in select:
                 updated[c].append(v)
-    if fresh and updated:
+    if fresh:
         # apply writes
         local_channels: dict[str, BaseChannel] = {}
         for k in channels:
-            if k in updated:
-                cc = channels[k].copy()
-                cc.update(updated[k])
-            else:
-                cc = channels[k]
+            cc = channels[k].copy()
+            cc.update(updated[k])
             local_channels[k] = cc
         # read fresh values
         values = read_channels(local_channels, select)

libs/langgraph/pyproject.toml

@@ -4,10 +4,10 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph"
-version = "0.6.6"
+version = "1.0.0a3"
 description = "Building stateful, multi-actor applications with LLMs"
 authors = []
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 readme = "README.md"
 license = "MIT"
 license-files = ['LICENSE']
@@ -15,7 +15,7 @@ dependencies = [
     "langchain-core>=0.1",
     "langgraph-checkpoint>=2.1.0,<3.0.0",
     "langgraph-sdk>=0.2.2,<0.3.0",
-    "langgraph-prebuilt>=0.6.0,<0.7.0",
+    "langgraph-prebuilt==0.7.0a2",
     "xxhash>=3.5.0",
     "pydantic>=2.7.4",
 ]
@@ -37,6 +37,7 @@ dev = [
     "jupyter",
     "pytest-xdist[psutil]",
     "pytest-repeat",
+    "langchain-core==1.0.0a1",
     "langgraph-prebuilt",
     "langgraph-checkpoint",
     "langgraph-checkpoint-sqlite",

libs/langgraph/tests/fake_chat.py

@@ -74,17 +74,26 @@ class FakeChatModel(GenericFakeChatModel):
             assert isinstance(content, str)
             content_chunks = cast(list[str], re.split(r"(\s)", content))
 
-            for token in content_chunks:
-                chunk = ChatGenerationChunk(
-                    message=AIMessageChunk(content=token, id=message.id)
-                )
+            for i, token in enumerate(content_chunks):
+                if i == len(content_chunks) - 1:
+                    chunk = ChatGenerationChunk(
+                        message=AIMessageChunk(
+                            content=token, id=message.id, chunk_position="last"
+                        )
+                    )
+                else:
+                    chunk = ChatGenerationChunk(
+                        message=AIMessageChunk(content=token, id=message.id)
+                    )
                 if run_manager:
                     run_manager.on_llm_new_token(token, chunk=chunk)
                 yield chunk
         else:
             args = message.__dict__
             args.pop("type")
-            chunk = ChatGenerationChunk(message=AIMessageChunk(**args))
+            chunk = ChatGenerationChunk(
+                message=AIMessageChunk(**args, chunk_position="last")
+            )
             if run_manager:
                 run_manager.on_llm_new_token("", chunk=chunk)
             yield chunk
@@ -122,17 +131,27 @@ class FakeChatModel(GenericFakeChatModel):
             assert isinstance(content, str)
             content_chunks = cast(list[str], re.split(r"(\s)", content))
 
-            for token in content_chunks:
-                chunk = ChatGenerationChunk(
-                    message=AIMessageChunk(content=token, id=message.id)
-                )
+            for i, token in enumerate(content_chunks):
+                if i == len(content_chunks) - 1:
+                    chunk = ChatGenerationChunk(
+                        message=AIMessageChunk(
+                            content=token, id=message.id, chunk_position="last"
+                        )
+                    )
+                else:
+                    chunk = ChatGenerationChunk(
+                        message=AIMessageChunk(content=token, id=message.id)
+                    )
+
                 if run_manager:
                     run_manager.on_llm_new_token(token, chunk=chunk)
                 yield chunk
         else:
             args = message.__dict__
             args.pop("type")
-            chunk = ChatGenerationChunk(message=AIMessageChunk(**args))
+            chunk = ChatGenerationChunk(
+                message=AIMessageChunk(**args, chunk_position="last")
+            )
             if run_manager:
                 await run_manager.on_llm_new_token("", chunk=chunk)
             yield chunk

libs/langgraph/tests/test_large_cases.py

@@ -1387,6 +1387,7 @@ def test_prebuilt_tool_chat(snapshot: SnapshotAssertion) -> None:
                         "type": "tool_call_chunk",
                     }
                 ],
+                chunk_position="last",
             ),
             {
                 "langgraph_step": 1,
@@ -1446,6 +1447,7 @@ def test_prebuilt_tool_chat(snapshot: SnapshotAssertion) -> None:
                         "type": "tool_call_chunk",
                     },
                 ],
+                chunk_position="last",
             ),
             {
                 "langgraph_step": 3,
@@ -1494,6 +1496,7 @@ def test_prebuilt_tool_chat(snapshot: SnapshotAssertion) -> None:
         (
             _AnyIdAIMessageChunk(
                 content="answer",
+                chunk_position="last",
             ),
             {
                 "langgraph_step": 5,

libs/langgraph/tests/test_large_cases_async.py

@@ -1140,6 +1140,7 @@ async def test_prebuilt_tool_chat() -> None:
                         "type": "tool_call_chunk",
                     }
                 ],
+                chunk_position="last",
             ),
             {
                 "langgraph_step": 1,
@@ -1199,6 +1200,7 @@ async def test_prebuilt_tool_chat() -> None:
                         "type": "tool_call_chunk",
                     },
                 ],
+                chunk_position="last",
             ),
             {
                 "langgraph_step": 3,
@@ -1247,6 +1249,7 @@ async def test_prebuilt_tool_chat() -> None:
         (
             _AnyIdAIMessageChunk(
                 content="answer",
+                chunk_position="last",
             ),
             {
                 "langgraph_step": 5,

libs/langgraph/tests/test_messages_state.py

@@ -20,7 +20,10 @@ from langgraph.graph.message import REMOVE_ALL_MESSAGES, MessagesState, push_mes
 from langgraph.graph.state import StateGraph
 from tests.messages import _AnyIdHumanMessage
 
-_, CORE_MINOR, CORE_PATCH = (int(v) for v in langchain_core.__version__.split("."))
+_, CORE_MINOR, CORE_PATCH = (
+    int("".join(c for c in v if c.isdigit()))
+    for v in langchain_core.__version__.split(".")
+)
 
 
 def test_add_single_message():

libs/langgraph/tests/test_pregel.py

@@ -6597,7 +6597,7 @@ def test_tags_stream_mode_messages() -> None:
         )
     ) == [
         (
-            _AnyIdAIMessageChunk(content="foo"),
+            _AnyIdAIMessageChunk(content="foo", chunk_position="last"),
             {
                 "langgraph_step": 1,
                 "langgraph_node": "call_model",

libs/langgraph/tests/test_pregel_async.py

@@ -7547,7 +7547,7 @@ async def test_tags_stream_mode_messages() -> None:
         )
     ] == [
         (
-            _AnyIdAIMessageChunk(content="foo"),
+            _AnyIdAIMessageChunk(content="foo", chunk_position="last"),
             {
                 "langgraph_step": 1,
                 "langgraph_node": "call_model",

libs/langgraph/tests/test_state.py

@@ -10,6 +10,7 @@ from langchain_core.runnables import RunnableConfig
 from pydantic import BaseModel
 from typing_extensions import NotRequired, Required, TypedDict
 
+from langgraph.channels.binop import BinaryOperatorAggregate
 from langgraph.graph.state import StateGraph, _get_node_name, _warn_invalid_state_schema
 
 
@@ -137,7 +138,7 @@ def test_state_schema_optional_values(total_: bool):
     class InputState(SomeParentState, total=total_):  # type: ignore
         val1: str
         val2: Optional[str]
-        val3: Required[str]
+        val3: Required[Annotated[dict, operator.or_]]
         val4: NotRequired[dict]
         val5: Annotated[Required[str], "foo"]
         val6: Annotated[NotRequired[str], "bar"]
@@ -159,6 +160,8 @@ def test_state_schema_optional_values(total_: bool):
     graph = builder.compile()
     json_schema = graph.get_input_jsonschema()
 
+    assert isinstance(graph.channels["val3"], BinaryOperatorAggregate)
+
     if total_ is False:
         expected_required = set()
         expected_optional = {"val2", "val1"}

libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py

@@ -34,7 +34,7 @@ from langchain_core.runnables import (
 )
 from langchain_core.tools import BaseTool
 from pydantic import BaseModel
-from typing_extensions import Annotated, NotRequired, TypedDict
+from typing_extensions import Annotated, NotRequired, TypedDict, deprecated
 
 from langgraph._internal._runnable import RunnableCallable, RunnableLike
 from langgraph._internal._typing import MISSING
@@ -52,13 +52,12 @@ from langgraph.warnings import LangGraphDeprecatedSinceV10
 
 StructuredResponse = Union[dict, BaseModel]
 StructuredResponseSchema = Union[dict, type[BaseModel]]
-F = TypeVar("F", bound=Callable[..., Any])
 
 
-# We create the AgentState that we will pass around
-# This simply involves a list of messages
-# We want steps to return messages to append to the list
-# So we annotate the messages attribute with `add_messages` reducer
+@deprecated(
+    "AgentState has been moved to langchain.agents. Please update your import to 'from langchain.agents import AgentState'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class AgentState(TypedDict):
     """The state of the agent."""
 
@@ -67,6 +66,10 @@ class AgentState(TypedDict):
     remaining_steps: NotRequired[RemainingSteps]
 
 
+@deprecated(
+    "AgentStatePydantic has been moved to langchain.agents. Please update your import to 'from langchain.agents import AgentStatePydantic'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class AgentStatePydantic(BaseModel):
     """The state of the agent."""
 
@@ -75,12 +78,20 @@ class AgentStatePydantic(BaseModel):
     remaining_steps: RemainingSteps = 25
 
 
+@deprecated(
+    "AgentStateWithStructuredResponse has been moved to langchain.agents. Please update your import to 'from langchain.agents import AgentStateWithStructuredResponse'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class AgentStateWithStructuredResponse(AgentState):
     """The state of the agent with a structured response."""
 
     structured_response: StructuredResponse
 
 
+@deprecated(
+    "AgentStateWithStructuredResponsePydantic has been moved to langchain.agents. Please update your import to 'from langchain.agents import AgentStateWithStructuredResponsePydantic'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class AgentStateWithStructuredResponsePydantic(AgentStatePydantic):
     """The state of the agent with a structured response."""
 
@@ -245,6 +256,10 @@ def _validate_chat_history(
     raise ValueError(error_message)
 
 
+@deprecated(
+    "create_react_agent has been moved to langchain.agents. Please update your import to 'from langchain.agents import create_agent'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 def create_react_agent(
     model: Union[
         str,

libs/prebuilt/langgraph/prebuilt/interrupt.py

@@ -1,8 +1,14 @@
 from typing import Literal, Optional, Union
 
-from typing_extensions import TypedDict
+from typing_extensions import TypedDict, deprecated
+
+from langgraph.warnings import LangGraphDeprecatedSinceV10
 
 
+@deprecated(
+    "HumanInterruptConfig has been moved to langchain.agents.interrupt. Please update your import to 'from langchain.agents.interrupt import HumanInterruptConfig'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class HumanInterruptConfig(TypedDict):
     """Configuration that defines what actions are allowed for a human interrupt.
 
@@ -21,6 +27,10 @@ class HumanInterruptConfig(TypedDict):
     allow_accept: bool
 
 
+@deprecated(
+    "ActionRequest has been moved to langchain.agents.interrupt. Please update your import to 'from langchain.agents.interrupt import ActionRequest'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class ActionRequest(TypedDict):
     """Represents a request for human action within the graph execution.
 
@@ -35,6 +45,10 @@ class ActionRequest(TypedDict):
     args: dict
 
 
+@deprecated(
+    "HumanInterrupt has been moved to langchain.agents.interrupt. Please update your import to 'from langchain.agents.interrupt import HumanInterrupt'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class HumanInterrupt(TypedDict):
     """Represents an interrupt triggered by the graph that requires human intervention.
 

libs/prebuilt/langgraph/prebuilt/tool_node.py

@@ -69,13 +69,14 @@ from langchain_core.tools.base import (
     get_all_basemodel_annotations,
 )
 from pydantic import BaseModel
-from typing_extensions import Annotated, get_args, get_origin
+from typing_extensions import Annotated, deprecated, get_args, get_origin
 
 from langgraph._internal._runnable import RunnableCallable
 from langgraph.errors import GraphBubbleUp
 from langgraph.graph.message import REMOVE_ALL_MESSAGES
 from langgraph.store.base import BaseStore
 from langgraph.types import Command, Send
+from langgraph.warnings import LangGraphDeprecatedSinceV10
 
 INVALID_TOOL_NAME_ERROR_TEMPLATE = (
     "Error: {requested_tool} is not a valid tool, try one of [{available_tools}]."
@@ -236,6 +237,10 @@ def _infer_handled_types(handler: Callable[..., str]) -> tuple[type[Exception],
     return (Exception,)
 
 
+@deprecated(
+    "ToolNode has been moved to langchain.agents.tool_node. Please update your import to 'from langchain.agents.tool_node import ToolNode'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class ToolNode(RunnableCallable):
     """A node that runs the tools called in the last AIMessage.
 
@@ -851,6 +856,10 @@ def tools_condition(
     return "__end__"
 
 
+@deprecated(
+    "InjectedState has been moved to langchain.agents.tool_node. Please update your import to 'from langchain.agents.tool_node import InjectedState'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class InjectedState(InjectedToolArg):
     """Annotation for injecting graph state into tool arguments.
 
@@ -925,6 +934,10 @@ class InjectedState(InjectedToolArg):
         self.field = field
 
 
+@deprecated(
+    "InjectedStore has been moved to langchain.agents.tool_node. Please update your import to 'from langchain.agents.tool_node import InjectedStore'.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class InjectedStore(InjectedToolArg):
     """Annotation for injecting persistent store into tool arguments.
 

libs/prebuilt/langgraph/prebuilt/tool_validator.py

@@ -32,8 +32,10 @@ from langchain_core.utils.pydantic import is_basemodel_subclass
 from pydantic import BaseModel, ValidationError
 from pydantic.v1 import BaseModel as BaseModelV1
 from pydantic.v1 import ValidationError as ValidationErrorV1
+from typing_extensions import deprecated
 
 from langgraph._internal._runnable import RunnableCallable
+from langgraph.warnings import LangGraphDeprecatedSinceV10
 
 
 def _default_format_error(
@@ -45,6 +47,10 @@ def _default_format_error(
     return f"{repr(error)}\n\nRespond after fixing all validation errors."
 
 
+@deprecated(
+    "ValidationNode is deprecated. Please use create_react_agent from langchain.agents with custom tool error handling.",
+    category=LangGraphDeprecatedSinceV10,
+)
 class ValidationNode(RunnableCallable):
     """A node that validates all tools requests from the last AIMessage.
 

libs/prebuilt/pyproject.toml

@@ -4,10 +4,10 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph-prebuilt"
-version = "0.6.4"
+version = "0.7.0a2"
 description = "Library with high-level APIs for creating and executing LangGraph agents and tools."
 authors = []
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 readme = "README.md"
 license = "MIT"
 license-files = ['LICENSE']
@@ -28,6 +28,7 @@ dev = [
     "pytest-mock",
     "pytest-watcher",
     "mypy",
+    "langchain-core",
     "langgraph",
     "langgraph-checkpoint",
     "langgraph-checkpoint-sqlite",

libs/prebuilt/uv.lock

@@ -1,6 +1,6 @@
 version = 1
 revision = 2
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 
 [[package]]
 name = "aiosqlite"
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@@ -298,7 +273,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "0.3.68"
+version = "1.0.0a1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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@@ -309,14 +284,14 @@ dependencies = [
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     { name = "typing-extensions" },
 ]
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 ]
 
 [[package]]
 name = "langgraph"
-version = "0.6.6"
+version = "1.0.0a3"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },
@@ -341,6 +316,7 @@ requires-dist = [
 dev = [
     { name = "httpx" },
     { name = "jupyter" },
+    { name = "langchain-core", specifier = "==1.0.0a1" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
     { name = "langgraph-checkpoint-postgres", editable = "../checkpoint-postgres" },
     { name = "langgraph-checkpoint-sqlite", editable = "../checkpoint-sqlite" },
@@ -462,7 +438,7 @@ dev = [
 
 [[package]]
 name = "langgraph-prebuilt"
-version = "0.6.4"
+version = "0.7.0a2"
 source = { editable = "." }
 dependencies = [
     { name = "langchain-core" },
@@ -472,6 +448,7 @@ dependencies = [
 [package.dev-dependencies]
 dev = [
     { name = "codespell" },
+    { name = "langchain-core" },
     { name = "langgraph" },
     { name = "langgraph-checkpoint" },
     { name = "langgraph-checkpoint-postgres" },
@@ -494,6 +471,7 @@ requires-dist = [
 [package.metadata.requires-dev]
 dev = [
     { name = "codespell" },
+    { name = "langchain-core" },
     { name = "langgraph", editable = "../langgraph" },
     { name = "langgraph-checkpoint", editable = "../checkpoint" },
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libs/sdk-py/langgraph_sdk/__init__.py

@@ -1,6 +1,6 @@
 from langgraph_sdk.auth import Auth
 from langgraph_sdk.client import get_client, get_sync_client
 
-__version__ = "0.2.3"
+__version__ = "0.2.6"
 
 __all__ = ["Auth", "get_client", "get_sync_client"]

libs/sdk-py/langgraph_sdk/auth/types.py

@@ -400,6 +400,20 @@ class AuthContext(BaseAuthContext):
     """
 
 
+class ThreadTTL(typing.TypedDict, total=False):
+    """Time-to-live configuration for a thread.
+
+    Matches the OpenAPI schema where TTL is represented as an object with
+    an optional strategy and a time value in minutes.
+    """
+
+    strategy: typing.Literal["delete"]
+    """TTL strategy. Currently only 'delete' is supported."""
+
+    ttl: int
+    """Time-to-live in minutes from now until the thread should be swept."""
+
+
 class ThreadsCreate(typing.TypedDict, total=False):
     """Parameters for creating a new thread.
 
@@ -422,6 +436,9 @@ class ThreadsCreate(typing.TypedDict, total=False):
     if_exists: OnConflictBehavior
     """Behavior when a thread with the same ID already exists."""
 
+    ttl: ThreadTTL
+    """Optional TTL configuration for the thread."""
+
 
 class ThreadsRead(typing.TypedDict, total=False):
     """Parameters for reading thread state or run information.
@@ -489,6 +506,9 @@ class ThreadsSearch(typing.TypedDict, total=False):
     offset: int
     """Offset for pagination."""
 
+    ids: Sequence[UUID] | None
+    """typing.Optional list of thread IDs to filter by."""
+
     thread_id: UUID | None
     """typing.Optional thread ID to filter by."""
 

libs/sdk-py/langgraph_sdk/client.py

@@ -15,6 +15,7 @@ import logging
 import os
 import re
 import sys
+import warnings
 from collections.abc import AsyncIterator, Iterator, Mapping, Sequence
 from types import TracebackType
 from typing import (
@@ -45,6 +46,7 @@ from langgraph_sdk.schema import (
     CronSelectField,
     CronSortBy,
     DisconnectMode,
+    Durability,
     GraphSchema,
     IfNotExists,
     Item,
@@ -69,6 +71,7 @@ from langgraph_sdk.schema import (
     ThreadSortBy,
     ThreadState,
     ThreadStatus,
+    ThreadStreamMode,
     ThreadUpdateStateResponse,
 )
 from langgraph_sdk.sse import SSEDecoder, aiter_lines_raw, iter_lines_raw
@@ -154,27 +157,38 @@ def get_client(
     headers: Mapping[str, str] | None = None,
     timeout: TimeoutTypes | None = None,
 ) -> LangGraphClient:
-    """Get a LangGraphClient instance.
+    """Create and configure a LangGraphClient.
+
+    The client provides programmatic access to a LangGraph Platform deployment. It supports
+    both remote servers and local in-process connections (when running inside a LangGraph server).
 
     Args:
-        url: The URL of the LangGraph API.
-        api_key: The API key. If not provided, it will be read from the environment.
-            Precedence:
-                1. explicit argument
-                2. LANGGRAPH_API_KEY
-                3. LANGSMITH_API_KEY
-                4. LANGCHAIN_API_KEY
-        headers: Optional custom headers
-        timeout: Optional timeout configuration for the HTTP client.
-            Accepts an httpx.Timeout instance, a float (seconds), or a tuple of timeouts.
-            Tuple format is (connect, read, write, pool)
-            If not provided, defaults to connect=5s, read=300s, write=300s, and pool=5s.
+        url:
+            Base URL of the LangGraph API.
+            – If `None`, the client first attempts an in-process connection via ASGI transport.
+              If that fails, it falls back to `http://localhost:8123`.
+        api_key:
+            API key for authentication. If omitted, the client reads from environment
+            variables in the following order:
+              1. Function argument
+              2. `LANGGRAPH_API_KEY`
+              3. `LANGSMITH_API_KEY`
+              4. `LANGCHAIN_API_KEY`
+        headers:
+            Additional HTTP headers to include in requests. Merged with authentication headers.
+        timeout:
+            HTTP timeout configuration. May be:
+              – `httpx.Timeout` instance
+              – float (total seconds)
+              – tuple `(connect, read, write, pool)` in seconds
+            Defaults: connect=5, read=300, write=300, pool=5.
 
     Returns:
-        LangGraphClient: The top-level client for accessing AssistantsClient,
-        ThreadsClient, RunsClient, and CronClient.
+        LangGraphClient:
+            A top-level client exposing sub-clients for assistants, threads,
+            runs, and cron operations.
 
-    ???+ example "Example"
+    ???+ example "Connect to a remote server:"
 
         ```python
         from langgraph_sdk import get_client
@@ -185,6 +199,21 @@ def get_client(
         # example usage: client.<model>.<method_name>()
         assistants = await client.assistants.get(assistant_id="some_uuid")
         ```
+
+    ???+ example "Connect in-process to a running LangGraph server:"
+
+        ```python
+        from langgraph_sdk import get_client
+
+        client = get_client(url=None)
+
+        async def my_node(...):
+            subagent_result = await client.runs.wait(
+                thread_id=None,
+                assistant_id="agent",
+                input={"messages": [{"role": "user", "content": "Foo"}]},
+            )
+        ```
     """
 
     transport: httpx.AsyncBaseTransport | None = None
@@ -1176,6 +1205,7 @@ class ThreadsClient:
         if_exists: OnConflictBehavior | None = None,
         supersteps: Sequence[dict[str, Sequence[dict[str, Any]]]] | None = None,
         graph_id: str | None = None,
+        ttl: int | Mapping[str, Any] | None = None,
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
     ) -> Thread:
@@ -1190,6 +1220,9 @@ class ThreadsClient:
             supersteps: Apply a list of supersteps when creating a thread, each containing a sequence of updates.
                 Each update has `values` or `command` and `as_node`. Used for copying a thread between deployments.
             graph_id: Optional graph ID to associate with the thread.
+            ttl: Optional time-to-live in minutes for the thread. You can pass an
+                integer (minutes) or a mapping with keys `ttl` and optional
+                `strategy` (defaults to "delete").
             headers: Optional custom headers to include with the request.
             params: Optional query parameters to include with the request.
 
@@ -1231,6 +1264,11 @@ class ThreadsClient:
                 }
                 for s in supersteps
             ]
+        if ttl is not None:
+            if isinstance(ttl, (int, float)):
+                payload["ttl"] = {"ttl": ttl, "strategy": "delete"}
+            else:
+                payload["ttl"] = ttl
 
         return await self.http.post(
             "/threads", json=payload, headers=headers, params=params
@@ -1241,6 +1279,7 @@ class ThreadsClient:
         thread_id: str,
         *,
         metadata: Mapping[str, Any],
+        ttl: int | Mapping[str, Any] | None = None,
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
     ) -> Thread:
@@ -1249,6 +1288,9 @@ class ThreadsClient:
         Args:
             thread_id: ID of thread to update.
             metadata: Metadata to merge with existing thread metadata.
+            ttl: Optional time-to-live in minutes for the thread. You can pass an
+                integer (minutes) or a mapping with keys `ttl` and optional
+                `strategy` (defaults to "delete").
             headers: Optional custom headers to include with the request.
             params: Optional query parameters to include with the request.
 
@@ -1262,12 +1304,19 @@ class ThreadsClient:
             thread = await client.threads.update(
                 thread_id="my-thread-id",
                 metadata={"number":1},
+                ttl=43_200,
             )
             ```
         """  # noqa: E501
+        payload: dict[str, Any] = {"metadata": metadata}
+        if ttl is not None:
+            if isinstance(ttl, (int, float)):
+                payload["ttl"] = {"ttl": ttl, "strategy": "delete"}
+            else:
+                payload["ttl"] = ttl
         return await self.http.patch(
             f"/threads/{thread_id}",
-            json={"metadata": metadata},
+            json=payload,
             headers=headers,
             params=params,
         )
@@ -1306,6 +1355,7 @@ class ThreadsClient:
         *,
         metadata: Json = None,
         values: Json = None,
+        ids: Sequence[str] | None = None,
         status: ThreadStatus | None = None,
         limit: int = 10,
         offset: int = 0,
@@ -1320,6 +1370,7 @@ class ThreadsClient:
         Args:
             metadata: Thread metadata to filter on.
             values: State values to filter on.
+            ids: List of thread IDs to filter by.
             status: Thread status to filter on.
                 Must be one of 'idle', 'busy', 'interrupted' or 'error'.
             limit: Limit on number of threads to return.
@@ -1353,6 +1404,8 @@ class ThreadsClient:
             payload["metadata"] = metadata
         if values:
             payload["values"] = values
+        if ids:
+            payload["ids"] = ids
         if status:
             payload["status"] = status
         if sort_by:
@@ -1682,6 +1735,53 @@ class ThreadsClient:
             params=params,
         )
 
+    async def join_stream(
+        self,
+        thread_id: str,
+        *,
+        last_event_id: str | None = None,
+        stream_mode: ThreadStreamMode | Sequence[ThreadStreamMode] = "run_modes",
+        headers: Mapping[str, str] | None = None,
+        params: QueryParamTypes | None = None,
+    ) -> AsyncIterator[StreamPart]:
+        """Get a stream of events for a thread.
+
+        Args:
+            thread_id: The ID of the thread to get the stream for.
+            last_event_id: The ID of the last event to get.
+            headers: Optional custom headers to include with the request.
+            params: Optional query parameters to include with the request.
+
+        Returns:
+            Iterator[StreamPart]: An iterator of stream parts.
+
+        ???+ example "Example Usage"
+
+            ```python
+
+            for chunk in client.threads.join_stream(
+                thread_id="my_thread_id",
+                last_event_id="my_event_id",
+            ):
+                print(chunk)
+            ```
+
+        """  # noqa: E501
+        query_params = {
+            "stream_mode": stream_mode,
+        }
+        if params:
+            query_params.update(params)
+        return self.http.stream(
+            f"/threads/{thread_id}/stream",
+            "GET",
+            headers={
+                **({"Last-Event-ID": last_event_id} if last_event_id else {}),
+                **(headers or {}),
+            },
+            params=query_params,
+        )
+
 
 class RunsClient:
     """Client for managing runs in LangGraph.
@@ -1772,7 +1872,7 @@ class RunsClient:
         context: Context | None = None,
         checkpoint: Checkpoint | None = None,
         checkpoint_id: str | None = None,
-        checkpoint_during: bool | None = None,
+        checkpoint_during: bool | None = None,  # deprecated
         interrupt_before: All | Sequence[str] | None = None,
         interrupt_after: All | Sequence[str] | None = None,
         feedback_keys: Sequence[str] | None = None,
@@ -1785,6 +1885,7 @@ class RunsClient:
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
         on_run_created: Callable[[RunCreateMetadata], None] | None = None,
+        durability: Durability | None = None,
     ) -> AsyncIterator[StreamPart]:
         """Create a run and stream the results.
 
@@ -1804,7 +1905,7 @@ class RunsClient:
             context: Static context to add to the assistant.
                 !!! version-added "Supported with langgraph>=0.6.0"
             checkpoint: The checkpoint to resume from.
-            checkpoint_during: Whether to checkpoint during the run (or only at the end/interruption).
+            checkpoint_during: (deprecated) Whether to checkpoint during the run (or only at the end/interruption).
             interrupt_before: Nodes to interrupt immediately before they get executed.
             interrupt_after: Nodes to Nodes to interrupt immediately after they get executed.
             feedback_keys: Feedback keys to assign to run.
@@ -1822,6 +1923,10 @@ class RunsClient:
             headers: Optional custom headers to include with the request.
             params: Optional query parameters to include with the request.
             on_run_created: Callback when a run is created.
+            durability: The durability to use for the run. Values are "sync", "async", or "exit".
+                "async" means checkpoints are persisted async while next graph step executes, replaces checkpoint_during=True
+                "sync" means checkpoints are persisted sync after graph step executes, replaces checkpoint_during=False
+                "exit" means checkpoints are only persisted when the run exits, does not save intermediate steps
 
         Returns:
             AsyncIterator[StreamPart]: Asynchronous iterator of stream results.
@@ -1857,6 +1962,13 @@ class RunsClient:
             ```
 
         """  # noqa: E501
+        if checkpoint_during is not None:
+            warnings.warn(
+                "`checkpoint_during` is deprecated and will be removed in a future version. Use `durability` instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+
         payload = {
             "input": input,
             "command": (
@@ -1881,6 +1993,7 @@ class RunsClient:
             "on_disconnect": on_disconnect,
             "on_completion": on_completion,
             "after_seconds": after_seconds,
+            "durability": durability,
         }
         endpoint = (
             f"/threads/{thread_id}/runs/stream"
@@ -1971,7 +2084,7 @@ class RunsClient:
         context: Context | None = None,
         checkpoint: Checkpoint | None = None,
         checkpoint_id: str | None = None,
-        checkpoint_during: bool | None = None,
+        checkpoint_during: bool | None = None,  # deprecated
         interrupt_before: All | Sequence[str] | None = None,
         interrupt_after: All | Sequence[str] | None = None,
         webhook: str | None = None,
@@ -1982,6 +2095,7 @@ class RunsClient:
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
         on_run_created: Callable[[RunCreateMetadata], None] | None = None,
+        durability: Durability | None = None,
     ) -> Run:
         """Create a background run.
 
@@ -2001,7 +2115,7 @@ class RunsClient:
             context: Static context to add to the assistant.
                 !!! version-added "Supported with langgraph>=0.6.0"
             checkpoint: The checkpoint to resume from.
-            checkpoint_during: Whether to checkpoint during the run (or only at the end/interruption).
+            checkpoint_during: (deprecated) Whether to checkpoint during the run (or only at the end/interruption).
             interrupt_before: Nodes to interrupt immediately before they get executed.
             interrupt_after: Nodes to Nodes to interrupt immediately after they get executed.
             webhook: Webhook to call after LangGraph API call is done.
@@ -2015,6 +2129,10 @@ class RunsClient:
                 Use to schedule future runs.
             headers: Optional custom headers to include with the request.
             on_run_created: Optional callback to call when a run is created.
+            durability: The durability to use for the run. Values are "sync", "async", or "exit".
+                "async" means checkpoints are persisted async while next graph step executes, replaces checkpoint_during=True
+                "sync" means checkpoints are persisted sync after graph step executes, replaces checkpoint_during=False
+                "exit" means checkpoints are only persisted when the run exits, does not save intermediate steps
 
         Returns:
             Run: The created background run.
@@ -2090,6 +2208,12 @@ class RunsClient:
             }
             ```
         """  # noqa: E501
+        if checkpoint_during is not None:
+            warnings.warn(
+                "`checkpoint_during` is deprecated and will be removed in a future version. Use `durability` instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
         payload = {
             "input": input,
             "command": (
@@ -2112,6 +2236,7 @@ class RunsClient:
             "if_not_exists": if_not_exists,
             "on_completion": on_completion,
             "after_seconds": after_seconds,
+            "durability": durability,
         }
         payload = {k: v for k, v in payload.items() if v is not None}
 
@@ -2209,7 +2334,7 @@ class RunsClient:
         context: Context | None = None,
         checkpoint: Checkpoint | None = None,
         checkpoint_id: str | None = None,
-        checkpoint_during: bool | None = None,
+        checkpoint_during: bool | None = None,  # deprecated
         interrupt_before: All | Sequence[str] | None = None,
         interrupt_after: All | Sequence[str] | None = None,
         webhook: str | None = None,
@@ -2222,6 +2347,7 @@ class RunsClient:
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
         on_run_created: Callable[[RunCreateMetadata], None] | None = None,
+        durability: Durability | None = None,
     ) -> list[dict] | dict[str, Any]:
         """Create a run, wait until it finishes and return the final state.
 
@@ -2237,7 +2363,7 @@ class RunsClient:
             context: Static context to add to the assistant.
                 !!! version-added "Supported with langgraph>=0.6.0"
             checkpoint: The checkpoint to resume from.
-            checkpoint_during: Whether to checkpoint during the run (or only at the end/interruption).
+            checkpoint_during: (deprecated) Whether to checkpoint during the run (or only at the end/interruption).
             interrupt_before: Nodes to interrupt immediately before they get executed.
             interrupt_after: Nodes to Nodes to interrupt immediately after they get executed.
             webhook: Webhook to call after LangGraph API call is done.
@@ -2253,6 +2379,10 @@ class RunsClient:
                 Use to schedule future runs.
             headers: Optional custom headers to include with the request.
             on_run_created: Optional callback to call when a run is created.
+            durability: The durability to use for the run. Values are "sync", "async", or "exit".
+                "async" means checkpoints are persisted async while next graph step executes, replaces checkpoint_during=True
+                "sync" means checkpoints are persisted sync after graph step executes, replaces checkpoint_during=False
+                "exit" means checkpoints are only persisted when the run exits, does not save intermediate steps
 
         Returns:
             Union[list[dict], dict[str, Any]]: The output of the run.
@@ -2306,6 +2436,12 @@ class RunsClient:
             ```
 
         """  # noqa: E501
+        if checkpoint_during is not None:
+            warnings.warn(
+                "`checkpoint_during` is deprecated and will be removed in a future version. Use `durability` instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
         payload = {
             "input": input,
             "command": (
@@ -2326,6 +2462,7 @@ class RunsClient:
             "on_disconnect": on_disconnect,
             "on_completion": on_completion,
             "after_seconds": after_seconds,
+            "durability": durability,
         }
         endpoint = (
             f"/threads/{thread_id}/runs/wait" if thread_id is not None else "/runs/wait"
@@ -4241,6 +4378,7 @@ class SyncThreadsClient:
         if_exists: OnConflictBehavior | None = None,
         supersteps: Sequence[dict[str, Sequence[dict[str, Any]]]] | None = None,
         graph_id: str | None = None,
+        ttl: int | Mapping[str, Any] | None = None,
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
     ) -> Thread:
@@ -4255,6 +4393,9 @@ class SyncThreadsClient:
             supersteps: Apply a list of supersteps when creating a thread, each containing a sequence of updates.
                 Each update has `values` or `command` and `as_node`. Used for copying a thread between deployments.
             graph_id: Optional graph ID to associate with the thread.
+            ttl: Optional time-to-live in minutes for the thread. You can pass an
+                integer (minutes) or a mapping with keys `ttl` and optional
+                `strategy` (defaults to "delete").
             headers: Optional custom headers to include with the request.
 
         Returns:
@@ -4296,6 +4437,11 @@ class SyncThreadsClient:
                 }
                 for s in supersteps
             ]
+        if ttl is not None:
+            if isinstance(ttl, (int, float)):
+                payload["ttl"] = {"ttl": ttl, "strategy": "delete"}
+            else:
+                payload["ttl"] = ttl
 
         return self.http.post("/threads", json=payload, headers=headers, params=params)
 
@@ -4304,6 +4450,7 @@ class SyncThreadsClient:
         thread_id: str,
         *,
         metadata: Mapping[str, Any],
+        ttl: int | Mapping[str, Any] | None = None,
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
     ) -> Thread:
@@ -4312,7 +4459,11 @@ class SyncThreadsClient:
         Args:
             thread_id: ID of thread to update.
             metadata: Metadata to merge with existing thread metadata.
+            ttl: Optional time-to-live in minutes for the thread. You can pass an
+                integer (minutes) or a mapping with keys `ttl` and optional
+                `strategy` (defaults to "delete").
             headers: Optional custom headers to include with the request.
+            params: Optional query parameters to include with the request.
 
         Returns:
             Thread: The created thread.
@@ -4324,12 +4475,19 @@ class SyncThreadsClient:
             thread = client.threads.update(
                 thread_id="my-thread-id",
                 metadata={"number":1},
+                ttl=43_200,
             )
             ```
         """  # noqa: E501
+        payload: dict[str, Any] = {"metadata": metadata}
+        if ttl is not None:
+            if isinstance(ttl, (int, float)):
+                payload["ttl"] = {"ttl": ttl, "strategy": "delete"}
+            else:
+                payload["ttl"] = ttl
         return self.http.patch(
             f"/threads/{thread_id}",
-            json={"metadata": metadata},
+            json=payload,
             headers=headers,
             params=params,
         )
@@ -4367,6 +4525,7 @@ class SyncThreadsClient:
         *,
         metadata: Json = None,
         values: Json = None,
+        ids: Sequence[str] | None = None,
         status: ThreadStatus | None = None,
         limit: int = 10,
         offset: int = 0,
@@ -4381,6 +4540,7 @@ class SyncThreadsClient:
         Args:
             metadata: Thread metadata to filter on.
             values: State values to filter on.
+            ids: List of thread IDs to filter by.
             status: Thread status to filter on.
                 Must be one of 'idle', 'busy', 'interrupted' or 'error'.
             limit: Limit on number of threads to return.
@@ -4410,6 +4570,8 @@ class SyncThreadsClient:
             payload["metadata"] = metadata
         if values:
             payload["values"] = values
+        if ids:
+            payload["ids"] = ids
         if status:
             payload["status"] = status
         if sort_by:
@@ -4733,6 +4895,54 @@ class SyncThreadsClient:
             params=params,
         )
 
+    def join_stream(
+        self,
+        thread_id: str,
+        *,
+        stream_mode: ThreadStreamMode | Sequence[ThreadStreamMode] = "run_modes",
+        last_event_id: str | None = None,
+        headers: Mapping[str, str] | None = None,
+        params: QueryParamTypes | None = None,
+    ) -> Iterator[StreamPart]:
+        """Get a stream of events for a thread.
+
+        Args:
+            thread_id: The ID of the thread to get the stream for.
+            last_event_id: The ID of the last event to get.
+            headers: Optional custom headers to include with the request.
+            params: Optional query parameters to include with the request.
+
+        Returns:
+            Iterator[StreamPart]: An iterator of stream parts.
+
+        ???+ example "Example Usage"
+
+            ```python
+
+            for chunk in client.threads.join_stream(
+                thread_id="my_thread_id",
+                last_event_id="my_event_id",
+                stream_mode="run_modes",
+            ):
+                print(chunk)
+            ```
+
+        """  # noqa: E501
+        query_params = {
+            "stream_mode": stream_mode,
+        }
+        if params:
+            query_params.update(params)
+        return self.http.stream(
+            f"/threads/{thread_id}/stream",
+            "GET",
+            headers={
+                **({"Last-Event-ID": last_event_id} if last_event_id else {}),
+                **(headers or {}),
+            },
+            params=query_params,
+        )
+
 
 class SyncRunsClient:
     """Synchronous client for managing runs in LangGraph.
@@ -4823,7 +5033,7 @@ class SyncRunsClient:
         context: Context | None = None,
         checkpoint: Checkpoint | None = None,
         checkpoint_id: str | None = None,
-        checkpoint_during: bool | None = None,
+        checkpoint_during: bool | None = None,  # deprecated
         interrupt_before: All | Sequence[str] | None = None,
         interrupt_after: All | Sequence[str] | None = None,
         feedback_keys: Sequence[str] | None = None,
@@ -4836,6 +5046,7 @@ class SyncRunsClient:
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
         on_run_created: Callable[[RunCreateMetadata], None] | None = None,
+        durability: Durability | None = None,
     ) -> Iterator[StreamPart]:
         """Create a run and stream the results.
 
@@ -4855,7 +5066,7 @@ class SyncRunsClient:
             context: Static context to add to the assistant.
                 !!! version-added "Supported with langgraph>=0.6.0"
             checkpoint: The checkpoint to resume from.
-            checkpoint_during: Whether to checkpoint during the run (or only at the end/interruption).
+            checkpoint_during: (deprecated) Whether to checkpoint during the run (or only at the end/interruption).
             interrupt_before: Nodes to interrupt immediately before they get executed.
             interrupt_after: Nodes to Nodes to interrupt immediately after they get executed.
             feedback_keys: Feedback keys to assign to run.
@@ -4872,6 +5083,11 @@ class SyncRunsClient:
                 Use to schedule future runs.
             headers: Optional custom headers to include with the request.
             on_run_created: Optional callback to call when a run is created.
+            durability: The durability to use for the run. Values are "sync", "async", or "exit".
+                "async" means checkpoints are persisted async while next graph step executes, replaces checkpoint_during=True
+                "sync" means checkpoints are persisted sync after graph step executes, replaces checkpoint_during=False
+                "exit" means checkpoints are only persisted when the run exits, does not save intermediate steps
+
 
         Returns:
             Iterator[StreamPart]: Iterator of stream results.
@@ -4904,6 +5120,12 @@ class SyncRunsClient:
             StreamPart(event='end', data=None)
             ```
         """  # noqa: E501
+        if checkpoint_during is not None:
+            warnings.warn(
+                "`checkpoint_during` is deprecated and will be removed in a future version. Use `durability` instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
         payload = {
             "input": input,
             "command": (
@@ -4928,6 +5150,7 @@ class SyncRunsClient:
             "on_disconnect": on_disconnect,
             "on_completion": on_completion,
             "after_seconds": after_seconds,
+            "durability": durability,
         }
         endpoint = (
             f"/threads/{thread_id}/runs/stream"
@@ -5018,7 +5241,7 @@ class SyncRunsClient:
         context: Context | None = None,
         checkpoint: Checkpoint | None = None,
         checkpoint_id: str | None = None,
-        checkpoint_during: bool | None = None,
+        checkpoint_during: bool | None = None,  # deprecated
         interrupt_before: All | Sequence[str] | None = None,
         interrupt_after: All | Sequence[str] | None = None,
         webhook: str | None = None,
@@ -5029,6 +5252,7 @@ class SyncRunsClient:
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
         on_run_created: Callable[[RunCreateMetadata], None] | None = None,
+        durability: Durability | None = None,
     ) -> Run:
         """Create a background run.
 
@@ -5048,7 +5272,7 @@ class SyncRunsClient:
             context: Static context to add to the assistant.
                 !!! version-added "Supported with langgraph>=0.6.0"
             checkpoint: The checkpoint to resume from.
-            checkpoint_during: Whether to checkpoint during the run (or only at the end/interruption).
+            checkpoint_during: (deprecated) Whether to checkpoint during the run (or only at the end/interruption).
             interrupt_before: Nodes to interrupt immediately before they get executed.
             interrupt_after: Nodes to Nodes to interrupt immediately after they get executed.
             webhook: Webhook to call after LangGraph API call is done.
@@ -5062,6 +5286,10 @@ class SyncRunsClient:
                 Use to schedule future runs.
             headers: Optional custom headers to include with the request.
             on_run_created: Optional callback to call when a run is created.
+            durability: The durability to use for the run. Values are "sync", "async", or "exit".
+                "async" means checkpoints are persisted async while next graph step executes, replaces checkpoint_during=True
+                "sync" means checkpoints are persisted sync after graph step executes, replaces checkpoint_during=False
+                "exit" means checkpoints are only persisted when the run exits, does not save intermediate steps
 
         Returns:
             Run: The created background run.
@@ -5137,6 +5365,12 @@ class SyncRunsClient:
             }
             ```
         """  # noqa: E501
+        if checkpoint_during is not None:
+            warnings.warn(
+                "`checkpoint_during` is deprecated and will be removed in a future version. Use `durability` instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
         payload = {
             "input": input,
             "command": (
@@ -5159,6 +5393,7 @@ class SyncRunsClient:
             "if_not_exists": if_not_exists,
             "on_completion": on_completion,
             "after_seconds": after_seconds,
+            "durability": durability,
         }
         payload = {k: v for k, v in payload.items() if v is not None}
 
@@ -5254,7 +5489,7 @@ class SyncRunsClient:
         metadata: Mapping[str, Any] | None = None,
         config: Config | None = None,
         context: Context | None = None,
-        checkpoint_during: bool | None = None,
+        checkpoint_during: bool | None = None,  # deprecated
         checkpoint: Checkpoint | None = None,
         checkpoint_id: str | None = None,
         interrupt_before: All | Sequence[str] | None = None,
@@ -5269,6 +5504,7 @@ class SyncRunsClient:
         headers: Mapping[str, str] | None = None,
         params: QueryParamTypes | None = None,
         on_run_created: Callable[[RunCreateMetadata], None] | None = None,
+        durability: Durability | None = None,
     ) -> list[dict] | dict[str, Any]:
         """Create a run, wait until it finishes and return the final state.
 
@@ -5284,7 +5520,7 @@ class SyncRunsClient:
             context: Static context to add to the assistant.
                 !!! version-added "Supported with langgraph>=0.6.0"
             checkpoint: The checkpoint to resume from.
-            checkpoint_during: Whether to checkpoint during the run (or only at the end/interruption).
+            checkpoint_during: (deprecated) Whether to checkpoint during the run (or only at the end/interruption).
             interrupt_before: Nodes to interrupt immediately before they get executed.
             interrupt_after: Nodes to Nodes to interrupt immediately after they get executed.
             webhook: Webhook to call after LangGraph API call is done.
@@ -5301,6 +5537,10 @@ class SyncRunsClient:
             raise_error: Whether to raise an error if the run fails.
             headers: Optional custom headers to include with the request.
             on_run_created: Optional callback to call when a run is created.
+            durability: The durability to use for the run. Values are "sync", "async", or "exit".
+                "async" means checkpoints are persisted async while next graph step executes, replaces checkpoint_during=True
+                "sync" means checkpoints are persisted sync after graph step executes, replaces checkpoint_during=False
+                "exit" means checkpoints are only persisted when the run exits, does not save intermediate steps
 
         Returns:
             Union[list[dict], dict[str, Any]]: The output of the run.
@@ -5355,6 +5595,12 @@ class SyncRunsClient:
             ```
 
         """  # noqa: E501
+        if checkpoint_during is not None:
+            warnings.warn(
+                "`checkpoint_during` is deprecated and will be removed in a future version. Use `durability` instead.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
         payload = {
             "input": input,
             "command": (
@@ -5376,6 +5622,7 @@ class SyncRunsClient:
             "on_completion": on_completion,
             "after_seconds": after_seconds,
             "raise_error": raise_error,
+            "durability": durability,
         }
 
         def on_response(res: httpx.Response):

libs/sdk-py/langgraph_sdk/schema.py

@@ -38,6 +38,14 @@ Represents the status of a thread:
 - "error": An exception occurred during task processing.
 """
 
+ThreadStreamMode = Literal["run_modes", "lifecycle", "state_update"]
+"""
+Defines the mode of streaming:
+- "run_modes": Stream the same events as the runs on thread, as well as run_done events.
+- "lifecycle": Stream only run start/end events.
+- "state_update": Stream state updates on the thread.
+"""
+
 StreamMode = Literal[
     "values",
     "messages",
@@ -91,6 +99,12 @@ Defines action after completion:
 - "keep": Retain resources after completion.
 """
 
+Durability = Literal["sync", "async", "exit"]
+"""Durability mode for the graph execution.
+- `"sync"`: Changes are persisted synchronously before the next step starts.
+- `"async"`: Changes are persisted asynchronously while the next step executes.
+- `"exit"`: Changes are persisted only when the graph exits."""
+
 All = Literal["*"]
 """Represents a wildcard or 'all' selector."""