# langgraph-checkpoint==4.3.0

Category: agent-infrastructure
Published: 2026-10-12T22:26:41Z
Source: [LangGraph releases](https://github.com/langchain-ai/langgraph/releases/tag/checkpoint%3D%3D4.3.0)
Agent usefulness: 72/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-13T00:17:38.999Z
Tags: langgraph, workflow, durable-execution

## Human Summary
LangGraph releases published langgraph-checkpoint==4.3.0. Changes since checkpoint==4.2.0 fix(checkpoint): default InMemorySaver delta history to the latest checkpoint ( 9257) test(checkpoint): run the delta conformance suite against InMemorySaver in CI ( 9261) fix(checkpoint,checkpoint-postgres,checkpoint-sqlite): validate namespace labels before store…

## Agent Summary
Treat langgraph-checkpoint==4.3.0 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-checkpoint==4.3.0. This automated 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 checkpoint==4.2.0 fix(checkpoint): default InMemorySaver delta history to the latest checkpoint ( 9257) test(checkpoint): run the delta conformance suite against InMemorySaver in CI ( 9261) fix(checkpoint,checkpoint-postgres,checkpoint-sqlite): validate namespace labels before store dispatch ( 9217) fix(checkpoint): keep serialized data when an object can't be rebuilt ( 9251) fix(langgraph): replay a resumed exit-mode run's delta writes in live order ( 9114) fix: order delta channel replay by task path ( 8544) chore(deps): bump the minor-and-patch group in /libs/checkpoint with 4 updates ( 9148) chore(deps): bump urllib3 from 2.7.0 to 2.8.0 in /libs/checkpoint ( 9131) chore(deps): bump anyio from 4.12.1 to 4.14.2 in /libs/checkpoint ( 8995) chore(deps): bump the minor-and-patch group in /libs/checkpoint with 4 updates ( 8777) fix(checkpoint): widen Store put value type to…

## 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.