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Author SHA1 Message Date
Tat Dat Duong dfeb9d3b46 release(langgraph): 0.3.25 2025-04-03 22:12:16 +02:00
David DuongandGitHub 81935a73d8 feat(langgraph): Add UI messages API (#4157) 
Sample usage:

```python
from typing import Annotated, Sequence, TypedDict

from langchain_core.messages import BaseMessage
from langchain_openai import ChatOpenAI
from langgraph.graph import StateGraph
from langgraph.graph.message import add_messages

from langgraph.graph.ui import AnyUIMessage, ui_message_reducer, push_ui_message


class AgentState(TypedDict):  # noqa: D101
    messages: Annotated[Sequence[BaseMessage], add_messages]
    ui: Annotated[Sequence[AnyUIMessage], ui_message_reducer]


async def agent(state: AgentState):  # noqa: D103
    message = await ChatOpenAI(model="gpt-4o-mini", temperature=0).ainvoke(
        state["messages"]
    )

    # Also directly writes the message to `ui`
    push_ui_message("simple", {"hello": "123"}, message=message, state_key="ui")

    return {"messages": [message]}

```
 2025-04-03 22:10:18 +02:00
Tat Dat Duong 615fc8b4ae Update naming 2025-04-03 21:58:16 +02:00
William FHandGitHub 13e6f6cbde Add algolia site verification (#4165) 2025-04-03 12:53:40 -07:00
Vadym BardaandGitHub e89633f30b prebuilt: release 0.1.8 (#4161) prebuilt==0.1.8 2025-04-03 12:01:18 -04:00
Vadym BardaandGitHub 0bbf5829e8 docs: add a how-to guide for managing message history in create_react_agent (#4149) 2025-04-03 16:00:11 +00:00
David DuongandGitHub 7ed5288f8f release(cli): 0.1.84 (#4158) cli==0.1.84 2025-04-03 15:25:12 +02:00
Tat Dat Duong cba240e70e release(cli): 0.1.84 2025-04-03 15:15:52 +02:00
Tat Dat Duong e9b5046076 Update docs to include Python API 2025-04-03 14:39:45 +02:00
Tat Dat Duong af6552a17e Move to langgraph/graph 2025-04-03 14:13:26 +02:00
Tat Dat Duong e38c30a434 Other docstring changes 2025-04-03 14:13:26 +02:00
Tat Dat Duong e41dea4cf9 Remove unnecessary return value 2025-04-03 14:13:26 +02:00
Tat Dat Duong f9f8c19ec4 Update docstrings 2025-04-03 14:13:26 +02:00
Tat Dat Duong 64ab3217f6 Add UI messages API 2025-04-03 14:13:26 +02:00
David DuongandGitHub 9af243d138 feat(cli): pass ui and ui config to inmem server, handle Docker setup for UI (#4100) 2025-04-03 14:11:30 +02:00
David DuongandGitHub 3f1d440aee fix(sdk-js): send accepts any input (#4099) 2025-04-03 14:00:31 +02:00
Tat Dat Duong 78901599e6 Add test for UI config 2025-04-03 13:48:14 +02:00
Tat Dat Duong 958c0df2d7 Install Node.js runtime and run the build process to get the UI 2025-04-03 13:48:14 +02:00
Tat Dat Duong 6919de8b3e feat(cli): pass ui and ui config to inmem server 2025-04-03 13:48:14 +02:00
Nuno CamposandGitHub e9a66cef46 Update jinja2 dev dep (#4150) sdk==0.1.61 2025-04-02 16:02:25 -07:00
Nuno CamposandGitHub 728679e48e Bump langchain-core from 0.3.0 to 0.3.15 in /libs/checkpoint-sqlite (#3978) 
Bumps [langchain-core](https://github.com/langchain-ai/langchain) from
0.3.0 to 0.3.15.
<details>
<summary>Commits</summary>
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<li><a
href="https://github.com/langchain-ai/langchain/commit/25a103187137077d4331e7153fe119e1c0c3ffb6"><code>25a1031</code></a>
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href="https://github.com/langchain-ai/langchain/commit/0172d938b4bf1e9da9f3b796dbfce64c565ce565"><code>0172d93</code></a>
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 2025-04-02 15:57:14 -07:00
Nuno CamposandGitHub f90c81f280 Bump langchain-core from 0.2.38 to 0.2.43 in /libs/checkpoint (#3979) 
Bumps [langchain-core](https://github.com/langchain-ai/langchain) from
0.2.38 to 0.2.43.
<details>
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href="https://github.com/langchain-ai/langchain/commit/9fdeb74d9965258ad077d535681d9bae84b58e08"><code>9fdeb74</code></a>
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 2025-04-02 15:56:20 -07:00
Nuno Campos f118a61101 Update jinja2 dev dep 2025-04-02 15:56:00 -07:00
dependabot[bot]andNuno Campos 8963bb2b68 Bump langchain-core from 0.3.0 to 0.3.15 in /libs/checkpoint-sqlite 
Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.3.0 to 0.3.15.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
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  dependency-type: indirect
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 2025-04-02 15:50:49 -07:00
dependabot[bot]andNuno Campos 499a1812e8 Bump langchain-core from 0.2.38 to 0.2.43 in /libs/checkpoint 
Bumps [langchain-core](https://github.com/langchain-ai/langchain) from 0.2.38 to 0.2.43.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
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 2025-04-02 15:49:49 -07:00
Nuno Campos 2cb81201b2 0.3.24 0.3.24 checkpoint==2.0.24 2025-04-02 15:45:06 -07:00
Nuno Campos 494cd4f6ad checkpoint 2.0.24 2025-04-02 15:44:58 -07:00
Nuno CamposandGitHub 9226b42150 Add checkpoint migrations for state graph internal channels (#4125) 2025-04-02 15:42:28 -07:00
Eugene YurtsevandGitHub 5e0a843423 sdk-py: release 0.1.61 (#4148) 2025-04-02 15:34:36 -07:00
Eugene YurtsevGitHubWilliam FH
 		6e54f74fa9 sdk-py: Add option to set description via client sdk (#4147) 
Co-authored-by: William FH <13333726+hinthornw@users.noreply.github.com>
 2025-04-02 21:26:14 +00:00
Nuno Campos ffb8400b19 Disable tests in 3.9 2025-04-02 14:05:15 -07:00
Nuno Campos b6b40149a9 Fix 2025-04-02 13:56:29 -07:00
Nuno Campos 5eecd2ac3a Update 2025-04-02 13:31:36 -07:00
Nuno Campos c38f7be89c Migrate quadratic channels too 2025-04-02 13:24:20 -07:00
Nuno Campos 2d406f03a2 Lint 2025-04-02 12:56:09 -07:00
Nuno Campos 1c48ec0aba Lint 2025-04-02 12:48:10 -07:00
Nuno Campos 4dda404da3 Implement checkpoint migration 
- Migrate start:{node} channels to branch:to:{node}
- Migrate {node} channels to branch:to:{node}
 2025-04-02 12:44:59 -07:00
Mahmut CAVDARandGitHub cce9801a8b docs: fixed indentation (#4078) 
"Copy the clipboard" doesn't return valid Python code.
 2025-04-02 13:44:45 -04:00
Vadym BardaandGitHub 67e8f8fc11 prebuilt: add optional pre-model hook that runs before calling LLM in create_react_agent (#4059) 
Example:

```python
from typing import Any
from langchain_openai import ChatOpenAI
from langchain_community.tools.tavily_search import TavilySearchResults
from langchain_core.messages import AnyMessage
from langchain_core.messages.utils import count_tokens_approximately

from langgraph.graph import MessagesState
from langgraph.prebuilt.chat_agent_executor import create_react_agent, AgentState
from langgraph.checkpoint.memory import InMemorySaver

from langmem.short_term import SummarizationNode, RunningSummary


class State(MessagesState):
    context: dict[str, Any]

search = TavilySearchResults(max_results=3)
tools = [search]

model = ChatOpenAI(model="gpt-4o")
summarization_model = model.bind(max_tokens=256)

summarization_node = SummarizationNode(
    token_counter=count_tokens_approximately,
    model=summarization_model,
    max_tokens=2048,
    max_summary_tokens=256,
    output_messages_key="messages"
    # output_messages_key="llm_input_messages"
)

checkpointer = InMemorySaver()


class State(AgentState):
    user_language: str

    # summarization-related keys
    context: dict[str, Any]


def prompt(state):
    language = state["user_language"]
    system_msg = f"Always respond in {language}"
    return [{"role": "system", "content": system_msg}] + state["messages"]


graph = create_react_agent(
    model,
    tools,
    prompt=prompt,
    pre_model_hook=summarization_node,
    state_schema=State,
    checkpointer=checkpointer
)
```
 2025-04-02 15:41:31 +00:00
RohitandGitHub 3a9247728b Fix missing colon in function definition in langchain-ai.github docum… (#4142) 
…entation.

This commit fixes a syntax error in the "langchain-ai.github"
documentation. The function called "some_node_inside_alice" was missing
a colon (:) after the function, which is required for valid Python
syntax.
 2025-04-02 08:04:22 -07:00
ZapironGitHubEugene Yurtsev
 		33766eb2ff docs: add missing MemorySaver import for unexpanded example (#4133) 
Import `MemorySaver` for the code to run without expanding the example

---------

Co-authored-by: Eugene Yurtsev <eugene@langchain.dev>
 2025-04-02 14:37:51 +00:00
Nuno CamposandNuno Campos 6fe319ed1b WIP: Add migrate_checkpoint 2025-04-02 07:24:55 -07:00
Andrew NguonlyandGitHub 3878addbe0 docs: Refactor content for new LangGraph Platform deployment options (#4118) 
### Summary
This is a large refactor of the content for the LangGraph Platform
deployment options. Although there are a lot of changes, I do feel
fairly confident that this is safe to merge and won't have any negative
impact related to confusion around deployment options. However, please
review thoroughly (i.e. run the docs locally).

### Goals and Non-Goals
Just wanted to explicitly state goals and non-goals so that we're clear
about what needs to be done now versus what can be done in a smaller
follow-up PR.

Goals
1. Add new content for the new deployment options (Self-Hosted Data
Plane, Self-Hosted Control Plane).
1. Hide old content for deprecated deployment options (BYOC).
1. Create a pair of "conceptual" and "how-to" pages for each deployment
option. As much as possible, the pages should have consistent headings.
1. Introduce the terms "control plane" and "data plane" and define them
plainly without hiding/abstracting information.

Non-Goals
1. Do not change the navigation of the existing deployment options. As
much as possible, update content in-place or add new pages. Changing the
navigation is a bigger task that can be done later.
1. Do not remove old content for deprecated deployment options. We may
need to refer to this later. There are only ~2 pages (I think).

### Next Steps
1. Update the architecture diagrams for each deployment option. Commit
Excalidraw file to source control.
1. Create a "how-to" page for the Control Plane UI. This page pertains
to 3/4 deployment options. Most of the content lives in the "how-to"
page for Cloud SaaS deployment.
1. Document required RBAC permissions for K8s for Self-Hosted Data Plane
and Self-Hosted Control Plane (and update links).
1. Figure out how to consolidate plan information.
1. Figure out where to document licensing, telemetry, custom
Postgres/Redis.
1. Update autoscaling content.
 2025-04-02 06:51:14 -07:00
Vadym BardaandGitHub 55f922cf2f langgraph: release 0.3.23 (#4141) 0.3.23 2025-04-02 09:50:18 -04:00
William FHandGitHub 9a5dc5d8f2 Update link (#4131) 2025-04-01 23:18:54 -07:00
William FHandGitHub 90b3da5959 TTL How-to (#4129) 
Signed-off-by: William Fu-Hinthorn <13333726+hinthornw@users.noreply.github.com>
 2025-04-01 22:54:31 -07:00
William FHandGitHub d2275a6727 Update cli.md to mention ttl (#4128) 
Signed-off-by: William Fu-Hinthorn <13333726+hinthornw@users.noreply.github.com>
 2025-04-01 22:21:55 -07:00
Nuno CamposandGitHub 0c590afb27 Maintain checkpoint LATEST_VERSION constant in langgraph lib (#4126) 
- This should be controlled by the langgraph version, not the version of
langgraph-checkpoint installed
 2025-04-01 21:53:12 -07:00
Nuno Campos 6efeefe424 Maintain checkpoint LATEST_VERSION constant in langgraph lib 
- This should be controlled by the langgraph version, not the version of langgraph-checkpoint installed
 2025-04-01 21:46:38 -07:00
William FHandGitHub da8b8c606a Release CLI (#4124) 
Signed-off-by: William Fu-Hinthorn <13333726+hinthornw@users.noreply.github.com>
cli==0.1.83 		2025-04-01 21:28:58 -07:00