langchain

vlangchain==1.3.3 scope: langchain Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 1d AI Agents & Assistants

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✓ No known CVEs patched in this version

Topics

agents ai ai-agents anthropic chatgpt deepagents

+11 more

enterprise gemini generative-ai langchain langgraph llm multiagent openai pydantic python typescript

Summary

AI summary

Added interrupt_mode and when predicate to HumanInTheLoopMiddleware.

Changes in this release

Type	Severity	Summary	CVE
Feature	Low	Adds interrupt_mode and when predicate to HumanInTheLoopMiddleware Adds interrupt_mode and when predicate to HumanInTheLoopMiddleware Source: llm_adapter@2026-06-02 Confidence: high	—
Feature	Low	Makes project subagent run onto typed run.subagents channel Makes project subagent run onto typed run.subagents channel Source: llm_adapter@2026-06-02 Confidence: high	—
Dependency	Low	Bumps langgraph dependency to 1.2.4 Bumps langgraph dependency to 1.2.4 Source: llm_adapter@2026-06-02 Confidence: high	—
Dependency	Low	Loosens langgraph dependency range Loosens langgraph dependency range Source: llm_adapter@2026-06-02 Confidence: high	—

Full changelog

Changes since langchain==1.3.2

release(langchain): 1.3.3 (#37843)
chore(langchain): bump langgraph to 1.2.4 (#37857)
chore(langchain): loosen langgraph dep range (#37855)
feat(langchain): project subagent runs onto typed run.subagents channel (#37739)
feat(langchain): add interrupt_mode and when predicate to HumanInTheLoopMiddleware (#37579)

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Earlier breaking changes

vlangchain-core==1.4.0 Deletes schema items marked for removal in schemas.py
vlangchain-core==1.4.0 Deletes function_calling.py utils marked for removal
vlangchain-core==1.4.0 Deletes get_relevant_documents function from API
vlangchain-core==1.4.0 Deletes pydantic_v1 module entirely from codebase
vlangchain-core==1.4.0 Deletes BaseMemory module, moved to langchain-classic