# langgraph-sdk==0.4.5

Category: agent-infrastructure
Published: 2026-09-21T14:43:09Z
Source: [LangGraph releases](https://github.com/langchain-ai/langgraph/releases/tag/sdk%3D%3D0.4.5)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-21T16:17:23.707Z
Tags: langgraph, workflow, durable-execution

## Human Summary
langgraph-sdk 0.4.5 released alongside dependency updates and LangGraph's support for a response schema in interrupt().

## Agent Summary
LangGraph releases langgraph-sdk==0.4.5 and langgraph==1.2.12, introducing a response schema to interrupt() and updating dependencies including anyio and websockets.

## Body
This release updates langgraph-sdk to version 0.4.5 and langgraph to version 1.2.12. Key changes include adding a response schema to the interrupt() function in langgraph (PR 8886) alongside several dependency maintenance updates: bumping anyio in /libs/sdk-py and /libs/cli, and updating websockets from 16.0 to 16.1.1 in /libs/sdk-py.

## Recommended actions
- Upgrade langgraph-sdk to 0.4.5 and langgraph to 1.2.12 if utilizing the new response schema for interrupt().
- Verify compatibility with bumped dependencies including anyio (up to 4.15.1) and websockets 16.1.1.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.