langchain-ai · hntrl · Sep 29, 2025 · Sep 29, 2025 · Oct 2, 2025 · Oct 2, 2025
diff --git a/libs/langchain-classic/package.json b/libs/langchain-classic/package.json
@@ -55,6 +55,7 @@
     "@langchain/baidu-qianfan": "workspace:*",
     "@langchain/cloudflare": "workspace:*",
     "@langchain/cohere": "workspace:*",
+    "@langchain/community": "workspace:*",
     "@langchain/core": "workspace:*",
     "@langchain/deepseek": "workspace:*",
     "@langchain/eslint": "workspace:*",
@@ -1243,4 +1244,4 @@
     },
     "./package.json": "./package.json"
   }
-}
+}
diff --git a/libs/langchain-classic/src/agents/agent.ts b/libs/langchain-classic/src/agents/agent.ts
@@ -368,7 +368,6 @@ export class RunnableMultiActionAgent extends BaseMultiActionAgent {
   }
 }
 
-/** @deprecated Renamed to RunnableMultiActionAgent. */
 export class RunnableAgent extends RunnableMultiActionAgent {}
 
 /**
@@ -478,8 +477,6 @@ export interface AgentArgs {
  * @remarks This is driven by an LLMChain. The prompt in the LLMChain *must*
  * include a variable called "agent_scratchpad" where the agent can put its
  * intermediary work.
- *
- * @deprecated Use {@link https://js.langchain.com/docs/modules/agents/agent_types/ | new agent creation methods}.
  */
 export abstract class Agent extends BaseSingleActionAgent {
   llmChain: LLMChain;

diff --git a/libs/langchain-classic/src/agents/chat/index.ts b/libs/langchain-classic/src/agents/chat/index.ts
@@ -17,7 +17,6 @@ const DEFAULT_HUMAN_MESSAGE_TEMPLATE = "{input}\n\n{agent_scratchpad}";
 
 /**
  * Interface for arguments used to create a chat prompt.
- * @deprecated
  */
 export interface ChatCreatePromptArgs {
   /** String to put after the list of tools. */
@@ -35,16 +34,12 @@ export interface ChatCreatePromptArgs {
 /**
  * Type for input data for creating a ChatAgent, extending AgentInput with
  * optional 'outputParser'.
- *
- * @deprecated
  */
 export type ChatAgentInput = Optional<AgentInput, "outputParser">;
 
 /**
  * Agent for the MRKL chain.
  * @augments Agent
- *
- * @deprecated Use the {@link https://api.js.langchain.com/functions/langchain.agents.createStructuredChatAgent.html | createStructuredChatAgent method instead}.
  */
 export class ChatAgent extends Agent {
   static lc_name() {

diff --git a/libs/langchain-classic/src/agents/chat_convo/index.ts b/libs/langchain-classic/src/agents/chat_convo/index.ts
@@ -50,8 +50,6 @@ export type ChatConversationalAgentInput = Optional<AgentInput, "outputParser">;
 /**
  * Agent for the MRKL chain.
  * @augments Agent
- *
- * @deprecated Use the {@link https://api.js.langchain.com/functions/langchain.agents.createStructuredChatAgent.html | createStructuredChatAgent method instead}.
  */
 export class ChatConversationalAgent extends Agent {
   static lc_name() {

diff --git a/libs/langchain-classic/src/agents/format_scratchpad/openai_functions.ts b/libs/langchain-classic/src/agents/format_scratchpad/openai_functions.ts
@@ -13,7 +13,6 @@ import { TEMPLATE_TOOL_RESPONSE } from "../chat_convo/prompt.js";
  * agents that use OpenAI's API. Helpful for passing in previous agent
  * step context into new iterations.
  *
- * @deprecated Use formatToOpenAIFunctionMessages instead.
  * @param steps A list of AgentSteps to format.
  * @returns A list of BaseMessages.
  */

diff --git a/libs/langchain-classic/src/agents/initialize.ts b/libs/langchain-classic/src/agents/initialize.ts
@@ -23,9 +23,6 @@ type AgentType =
   | "chat-zero-shot-react-description"
   | "chat-conversational-react-description";
 
-/**
- * @deprecated See {@link https://js.langchain.com/docs/modules/agents/agent_types/ | new agent creation docs}.
- */
 export const initializeAgentExecutor = async (
   tools: ToolInterface[],
   llm: BaseLanguageModelInterface,
@@ -103,7 +100,6 @@ export type InitializeAgentExecutorOptionsStructured =
 
 /**
  * Initialize an agent executor with options.
- * @deprecated See {@link https://js.langchain.com/docs/modules/agents/agent_types/ | new agent creation docs}.
  * @param tools Array of tools to use in the agent
  * @param llm LLM or ChatModel to use in the agent
  * @param options Options for the agent, including agentType, agentArgs, and other options for AgentExecutor.fromAgentAndTools
@@ -114,13 +110,11 @@ export async function initializeAgentExecutorWithOptions(
   llm: BaseLanguageModelInterface,
   options: InitializeAgentExecutorOptionsStructured
 ): Promise<AgentExecutor>;
-/** @deprecated See {@link https://js.langchain.com/docs/modules/agents/agent_types/ | new agent creation docs}. */
 export async function initializeAgentExecutorWithOptions(
   tools: ToolInterface[],
   llm: BaseLanguageModelInterface,
   options?: InitializeAgentExecutorOptions
 ): Promise<AgentExecutor>;
-/** @deprecated See {@link https://js.langchain.com/docs/modules/agents/agent_types/ | new agent creation docs}. */
 export async function initializeAgentExecutorWithOptions(
   tools: StructuredToolInterface[] | ToolInterface[],
   llm: BaseLanguageModelInterface,

diff --git a/libs/langchain-classic/src/agents/load.ts b/libs/langchain-classic/src/agents/load.ts
@@ -5,7 +5,6 @@ import { loadFromHub } from "../util/hub.js";
 import { FileLoader, loadFromFile } from "../util/load.js";
 import { parseFileConfig } from "../util/parse.js";
 
-/** @deprecated */
 const loadAgentFromFile: FileLoader<Agent> = async (
   file: string,
   path: string,
@@ -15,7 +14,6 @@ const loadAgentFromFile: FileLoader<Agent> = async (
   return Agent.deserialize({ ...serialized, ...llmAndTools });
 };
 
-/** @deprecated */
 export const loadAgent = async (
   uri: string,
   llmAndTools?: { llm?: BaseLanguageModelInterface; tools?: ToolInterface[] }

diff --git a/libs/langchain-classic/src/agents/mrkl/index.ts b/libs/langchain-classic/src/agents/mrkl/index.ts
@@ -55,8 +55,6 @@ export type ZeroShotAgentInput = Optional<AgentInput, "outputParser">;
  *   input: `Who is Olivia Wilde's boyfriend? What is his current age raised to the 0.23 power?`,
  * });
  * ```
- *
- * @deprecated Use the {@link https://api.js.langchain.com/functions/langchain.agents.createReactAgent.html | createReactAgent method instead}.
  */
 export class ZeroShotAgent extends Agent {
   static lc_name() {

diff --git a/libs/langchain-classic/src/agents/openai_functions/index.ts b/libs/langchain-classic/src/agents/openai_functions/index.ts
@@ -94,8 +94,6 @@ export interface OpenAIAgentCreatePromptArgs {
  * Class representing an agent for the OpenAI chat model in LangChain. It
  * extends the Agent class and provides additional functionality specific
  * to the OpenAIAgent type.
- *
- * @deprecated Use the {@link https://api.js.langchain.com/functions/langchain.agents.createOpenAIFunctionsAgent.html | createOpenAIFunctionsAgent method instead}.
  */
 export class OpenAIAgent extends Agent {
   static lc_name() {

diff --git a/libs/langchain-classic/src/agents/structured_chat/index.ts b/libs/langchain-classic/src/agents/structured_chat/index.ts
@@ -61,7 +61,6 @@ export type StructuredChatAgentInput = Optional<AgentInput, "outputParser">;
 /**
  * Agent that interoperates with Structured Tools using React logic.
  * @augments Agent
- * @deprecated Use the {@link https://api.js.langchain.com/functions/langchain.agents.createStructuredChatAgent.html | createStructuredChatAgent method instead}.
  */
 export class StructuredChatAgent extends Agent {
   static lc_name() {

diff --git a/libs/langchain-classic/src/agents/toolkits/conversational_retrieval/tool.ts b/libs/langchain-classic/src/agents/toolkits/conversational_retrieval/tool.ts
@@ -7,7 +7,6 @@ import {
 } from "@langchain/core/tools";
 import { formatDocumentsAsString } from "../../../util/document.js";
 
-/** @deprecated Use "@langchain/classic/tools/retriever" instead. */
 export function createRetrieverTool(
   retriever: BaseRetrieverInterface,
   input: Omit<DynamicStructuredToolInput, "func" | "schema">

diff --git a/libs/langchain-classic/src/agents/toolkits/json/json.ts b/libs/langchain-classic/src/agents/toolkits/json/json.ts
@@ -35,8 +35,6 @@ export class JsonToolkit extends BaseToolkit {
 }
 
 /**
- * @deprecated Create a specific agent with a custom tool instead.
- *
  * Creates a JSON agent using a language model, a JSON toolkit, and
  * optional prompt arguments. It creates a prompt for the agent using the
  * JSON tools and the provided prefix and suffix. It then creates a

diff --git a/libs/langchain-classic/src/agents/toolkits/openapi/openapi.ts b/libs/langchain-classic/src/agents/toolkits/openapi/openapi.ts
@@ -77,8 +77,6 @@ export class OpenApiToolkit extends RequestsToolkit {
 }
 
 /**
- * @deprecated Create a specific agent with a custom tool instead.
- *
  * Creates an OpenAPI agent using a language model, an OpenAPI toolkit,
  * and optional prompt arguments. It creates a prompt for the agent using
  * the OpenAPI tools and the provided prefix and suffix. It then creates a

diff --git a/libs/langchain-classic/src/agents/toolkits/vectorstore/vectorstore.ts b/libs/langchain-classic/src/agents/toolkits/vectorstore/vectorstore.ts
@@ -95,7 +95,6 @@ export class VectorStoreRouterToolkit extends BaseToolkit {
   }
 }
 
-/** @deprecated Create a specific agent with a custom tool instead. */
 export function createVectorStoreAgent(
   llm: BaseLanguageModelInterface,
   toolkit: VectorStoreToolkit,
@@ -124,7 +123,6 @@ export function createVectorStoreAgent(
   });
 }
 
-/** @deprecated Create a specific agent with a custom tool instead. */
 export function createVectorStoreRouterAgent(
   llm: BaseLanguageModelInterface,
   toolkit: VectorStoreRouterToolkit,

diff --git a/libs/langchain-classic/src/agents/xml/index.ts b/libs/langchain-classic/src/agents/xml/index.ts
@@ -34,8 +34,6 @@ export interface XMLAgentInput {
 
 /**
  * Class that represents an agent that uses XML tags.
- *
- * @deprecated Use the {@link https://api.js.langchain.com/functions/langchain.agents.createXmlAgent.html | createXmlAgent method instead}.
  */
 export class XMLAgent extends BaseSingleActionAgent implements XMLAgentInput {
   static lc_name() {

diff --git a/libs/langchain-classic/src/chains/conversational_retrieval_chain.ts b/libs/langchain-classic/src/chains/conversational_retrieval_chain.ts
@@ -33,9 +33,6 @@ export interface ConversationalRetrievalQAChainInput extends ChainInputs {
 }
 
 /**
- * @deprecated This class will be removed in 1.0.0. See below for an example implementation using
- * `createRetrievalChain`.
- *
  * Class for conducting conversational question-answering tasks with a
  * retrieval component. Extends the BaseChain class and implements the
  * ConversationalRetrievalQAChainInput interface.

diff --git a/libs/langchain-classic/src/chains/llm_chain.ts b/libs/langchain-classic/src/chains/llm_chain.ts
@@ -72,9 +72,6 @@ function _getLanguageModel(llmLike: RunnableInterface): BaseLanguageModel {
 }
 
 /**
- * @deprecated This class will be removed in 1.0.0. Use the LangChain Expression Language (LCEL) instead.
- * See the example below for how to use LCEL with the LLMChain class:
- *
  * Chain to run queries against LLMs.
  *
  * @example

diff --git a/libs/langchain-classic/src/chains/load.ts b/libs/langchain-classic/src/chains/load.ts
@@ -29,8 +29,6 @@ const loadChainFromFile: FileLoader<BaseChain> = async (
  * import { loadChain } from "@langchain/classic/chains/load";
  * const chain = await loadChain("/path/to/chain.json");
  * ```
- *
- * @deprecated Use newer {@link https://api.js.langchain.com/functions/langchain.load.load.html | load method}.
  */
 export const loadChain = async (
   uri: string,

diff --git a/libs/langchain-classic/src/chains/retrieval_qa.ts b/libs/langchain-classic/src/chains/retrieval_qa.ts
@@ -23,8 +23,6 @@ export interface RetrievalQAChainInput extends Omit<ChainInputs, "memory"> {
 }
 
 /**
- * @deprecated This class will be removed in 1.0.0. See below for an example implementation using
- * `createRetrievalChain`:
  * Class representing a chain for performing question-answering tasks with
  * a retrieval component.
  * @example

diff --git a/libs/langchain-classic/src/chains/sequential_chain.ts b/libs/langchain-classic/src/chains/sequential_chain.ts
@@ -16,10 +16,6 @@ function formatSet(input: Set<string>) {
 
 /**
  * Interface for the input parameters of the SequentialChain class.
- *
- * @deprecated
- * Switch to expression language: https://js.langchain.com/docs/expression_language/
- * Will be removed in 0.2.0
  */
 export interface SequentialChainInput extends ChainInputs {
   /** Array of chains to run as a sequence. The chains are run in order they appear in the array. */
@@ -77,10 +73,6 @@ export interface SequentialChainInput extends ChainInputs {
  * });
  * console.log(chainExecutionResult);
  * ```
- * 
- * @deprecated
- * Switch to {@link https://js.langchain.com/docs/expression_language/ | expression language}.
- * Will be removed in 0.2.0
  */
 export class SequentialChain extends BaseChain implements SequentialChainInput {
   static lc_name() {
@@ -244,7 +236,6 @@ export class SequentialChain extends BaseChain implements SequentialChainInput {
 }
 
 /**
- * @deprecated Switch to expression language: https://js.langchain.com/docs/expression_language/
  * Interface for the input parameters of the SimpleSequentialChain class.
  */
 export interface SimpleSequentialChainInput extends ChainInputs {
@@ -255,7 +246,6 @@ export interface SimpleSequentialChainInput extends ChainInputs {
 }
 
 /**
- * @deprecated Switch to expression language: https://js.langchain.com/docs/expression_language/
  * Simple chain where a single string output of one chain is fed directly into the next.
  * @augments BaseChain
  * @augments SimpleSequentialChainInput

diff --git a/libs/langchain-classic/src/chains/transform.ts b/libs/langchain-classic/src/chains/transform.ts
@@ -9,10 +9,6 @@ import { ChainInputs, BaseChain } from "./base.js";
  * Interface that extends the `ChainInputs` interface and defines the
  * fields required for a transform chain. It includes the `transform`
  * function, `inputVariables`, and `outputVariables` properties.
- *
- * @deprecated
- * Switch to expression language: https://js.langchain.com/docs/expression_language/
- * Will be removed in 0.2.0
  */
 export interface TransformChainFields<
   I extends ChainValues,
@@ -28,10 +24,6 @@ export interface TransformChainFields<
  * class and implements the `TransformChainFields` interface. It provides
  * a way to transform input values to output values using a specified
  * transform function.
- *
- * @deprecated
- * Switch to {@link https://js.langchain.com/docs/expression_language/ | expression language}.
- * Will be removed in 0.2.0
  */
 export class TransformChain<
   I extends ChainValues,

diff --git a/libs/langchain-classic/src/chains/vector_db_qa.ts b/libs/langchain-classic/src/chains/vector_db_qa.ts
@@ -14,10 +14,6 @@ export type LoadValues = Record<string, any>;
  * input fields required for a VectorDBQAChain. It includes properties
  * such as `vectorstore`, `combineDocumentsChain`,
  * `returnSourceDocuments`, `k`, and `inputKey`.
- *
- * @deprecated
- * Switch to {@link https://js.langchain.com/docs/modules/chains/ | createRetrievalChain}
- * Will be removed in 0.2.0
  */
 export interface VectorDBQAChainInput extends Omit<ChainInputs, "memory"> {
   vectorstore: VectorStoreInterface;
@@ -32,10 +28,6 @@ export interface VectorDBQAChainInput extends Omit<ChainInputs, "memory"> {
  * class and implements the `VectorDBQAChainInput` interface. It performs
  * a similarity search using a vector store and combines the search
  * results using a specified combine documents chain.
- *
- * @deprecated
- * Switch to {@link https://js.langchain.com/docs/modules/chains/ | createRetrievalChain}
- * Will be removed in 0.2.0
  */
 export class VectorDBQAChain extends BaseChain implements VectorDBQAChainInput {
   static lc_name() {

diff --git a/libs/langchain-classic/src/load/tests/data/important_imports.json b/libs/langchain-classic/src/load/tests/data/important_imports.json
@@ -1,6 +1,6 @@
 {
   "langchain/prompts/chat/BaseMessagePromptTemplate": "langchain_core/prompts/chat/BaseMessagePromptTemplate",
-  "@langchain/classic/output_parsers/list/CommaSeparatedListOutputParser": "langchain_core/output_parsers/list/CommaSeparatedListOutputParser",
+  "langchain/output_parsers/list/CommaSeparatedListOutputParser": "langchain_core/output_parsers/list/CommaSeparatedListOutputParser",
   "langchain/prompts/few_shot_with_templates/FewShotPromptWithTemplates": "langchain_core/prompts/few_shot_with_templates/FewShotPromptWithTemplates",
   "langchain/prompts/base/StringPromptTemplate": "langchain_core/prompts/string/StringPromptTemplate",
   "langchain/prompts/chat/BaseStringMessagePromptTemplate": "langchain_core/prompts/chat/BaseStringMessagePromptTemplate",

diff --git a/libs/langchain-classic/src/schema/prompt_template.ts b/libs/langchain-classic/src/schema/prompt_template.ts
@@ -2,7 +2,6 @@ import { Document } from "@langchain/core/documents";
 import { BasePromptTemplate } from "@langchain/core/prompts";
 
 /**
- * @deprecated
  * Formats a document using a given prompt template.
  *
  * @async

diff --git a/libs/langchain-classic/src/schema/query_constructor.ts b/libs/langchain-classic/src/schema/query_constructor.ts
@@ -2,7 +2,6 @@
  * A simple data structure that holds information about an attribute. It
  * is typically used to provide metadata about attributes in other classes
  * or data structures within the LangChain framework.
- * @deprecated
  */
 export class AttributeInfo {
   constructor(

diff --git a/libs/langchain-classic/src/tools/chain.ts b/libs/langchain-classic/src/tools/chain.ts
@@ -2,7 +2,6 @@ import { DynamicTool, DynamicToolInput } from "@langchain/core/tools";
 import { BaseChain } from "../chains/base.js";
 
 /**
- * @deprecated Wrap in a DynamicTool instead.
  * Interface for the input parameters of the ChainTool constructor.
  * Extends the DynamicToolInput interface, replacing the 'func' property
  * with a 'chain' property.
@@ -12,7 +11,6 @@ export interface ChainToolInput extends Omit<DynamicToolInput, "func"> {
 }
 
 /**
- * @deprecated Wrap in a DynamicTool instead.
  * Class that extends DynamicTool for creating tools that can run chains.
  * Takes an instance of a class that extends BaseChain as a parameter in
  * its constructor and uses it to run the chain when its 'func' method is