# langchain==1.4.8

Category: agent-infrastructure
Published: 2026-11-02T15:45:02Z
Source: [LangChain releases](https://github.com/langchain-ai/langchain/releases/tag/langchain%3D%3D1.4.8)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-11-02T18:17:49.845Z
Tags: langchain, tools, orchestration

## Human Summary
LangChain released v1.4.8 with dependency updates and issued a deprecation warning that Python 3.10 support will be dropped in langchain 1.5.0 and langchain-core 1.8.0.

## Agent Summary
LangChain v1.4.8 published with multiple dependency bumps (including fastmcp, authlib, and joserfc) and a deprecation warning for Python 3.10 planned for langchain 1.5.0 / langchain-core 1.8.0.

## Body
LangChain version 1.4.8 has been released. The release issues an explicit warning stating that Python 3.10 support will be dropped in langchain 1.5.0 and langchain-core 1.8.0, urging users to upgrade to Python 3.11+. Changes include bumping langchain-core, updating multiple dependencies (such as fastmcp to 4.1.2, opentelemetry-api to 1.45.1, authlib to 1.9.1, joserfc to 1.7.6, and pyasn1 to 0.6.5), relaxing third-party dependency upper bounds, and addressing integration dependency patches.

## Recommended actions
- Prepare environments for upcoming deprecation by upgrading Python runtime to 3.11 or later ahead of langchain 1.5.0 and langchain-core 1.8.0.
- Update project dependencies to langchain==1.4.8 to incorporate recent dependency bumps and relaxed upper bounds.

## 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.