# langgraph-sdk==0.4.3

Category: agent-infrastructure
Published: 2026-08-19T18:05:32Z
Source: [LangGraph releases](https://github.com/langchain-ai/langgraph/releases/tag/sdk%3D%3D0.4.3)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-19T00:17:31.556Z
Tags: langgraph, workflow, durable-execution

## Human Summary
LangGraph releases published langgraph-sdk==0.4.3. Changes since sdk==0.4.2 release(sdk-py): 0.4.3 ( 8657) feat(sdk-py): add decrypt replacement result ( 8598) release(langgraph): 1.2.11 ( 8595) chore(deps): bump the minor-and-patch group across 1 directory with 5 updates ( 8532) release(checkpoint): 4.2.0 ( 8563) chore: enforce PLC0415 in tests for the…

## Agent Summary
Treat langgraph-sdk==0.4.3 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
LangGraph releases published langgraph-sdk==0.4.3. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Changes since sdk==0.4.2 release(sdk-py): 0.4.3 ( 8657) feat(sdk-py): add decrypt replacement result ( 8598) release(langgraph): 1.2.11 ( 8595) chore(deps): bump the minor-and-patch group across 1 directory with 5 updates ( 8532) release(checkpoint): 4.2.0 ( 8563) chore: enforce PLC0415 in tests for the remaining packages ( 8547) release(langgraph): 1.2.10 ( 8462) chore(deps): bump websockets from 15.0.1 to 16.0 in /libs/sdk-py in the major group ( 8253) fix(sdk-py): support clearing cron end time via update(end time=None) ( 8334) release(langgraph): 1.2.9 ( 8316) release(langgraph): 1.2.8 ( 8292) chore(deps): bump websockets from 15.0.1 to 16.0 in /libs/langgraph in the major group ( 8256) chore(deps): bump the minor-and-patch group in /libs/sdk-py with 9 updates ( 8252) release(langgraph): 1.2.7 ( 8223) chore(deps-dev): bump starlette from 1.0.1 to 1.3.1 in /libs/sdk-py ( 8104)…

## Recommended actions
- Review the official LangGraph releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## 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.