langchain-anthropic 1.7.6 declares mid-conversation support
Updated LangChain
Summary
langchain-anthropic 1.7.6, released October 12, 2026, declares mid-conversation support in model profiles and bumps langgraph-sdk and urllib3.
- Tool
- LangChain
- Category
- Frameworks
- Date
- Open source
- Yes
- License
- MIT
- Pricing
- Not stated in the sources we cited.
The langchain-ai/langchain repository published langchain-anthropic 1.7.6 on October 12, 2026. According to the GitHub release notes, the update declares mid-conversation support in model profiles for the core, Anthropic and OpenAI packages, and bumps several dependencies.
Release facts
| Fact | Detail |
|---|---|
| Product | langchain-anthropic (part of the langchain repository) |
| Version | langchain-anthropic==1.7.6 |
| Release date | October 12, 2026 |
| Previous version | langchain-anthropic==1.7.5 |
| License | MIT, as reported by the GitHub API for the repository |
| Where to get it | GitHub release tag on langchain-ai/langchain |
What changed
- Mid-conversation support in model profiles: the release notes list "declare mid-conversation support in model profiles" across core, anthropic and openai (#41180). The notes do not explain the behavior further.
- Model profile data refresh: model profile data was refreshed (#41145).
- Dependency bumps: langgraph-sdk moved from 0.4.2 to 0.4.4 and then to 0.4.6, and urllib3 moved from 2.7.0 to 2.8.0, all in the Anthropic partner package.
- Version release: the release commit is listed as 1.7.6 (#41221).
The release notes contain no breaking-change notes or migration steps.
Questions
Is this release a feature launch or a maintenance update? It mixes both. The release notes include one feat entry about model profiles, while the rest are chores such as the profile data refresh and dependency bumps.
Is langchain open source? The GitHub API reports an MIT license for the langchain-ai/langchain repository. Hosted pricing is not stated in the cited sources.
How do I use Anthropic models with LangChain?
The LangChain docs overview shows installing langchain[anthropic] and calling create_agent with model claude-sonnet-4-6, a tool and a system prompt.
See the langchain tool hub, the frameworks category, and the related adk-python 2.12.0 launch for more.
Alternatives
| Tool | License | Pricing note |
|---|---|---|
LangChainThis launchLangChain is an open-source agent engineering platform and Python framework for building agents. | MIT | Not stated |
LangGraphLangGraph is an open-source orchestration runtime for building stateful, resilient agents. | MIT | Not stated |
CrewAICrewAI is a framework for orchestrating role-playing, autonomous AI agents that work together. | MIT | Not stated |
Pydantic AIPydantic AI is a model-agnostic Python framework for building typed AI agents and applications. | MIT | Not stated |
MastraTypeScript agent framework. Mastra Code is the terminal agent; AgentController is the extracted loop, in @mastra/core 1.47.0 or later. | Open source | Mastra Code and AgentController are announced as open source. No license fee is stated in the posts we cited. |
Questions
What is langchain?
The GitHub repository describes langchain as "The agent engineering platform."
Is langchain open source?
The GitHub API reports an MIT license for langchain-ai/langchain.
How do I create an agent with langchain?
The docs overview shows importing create_agent from langchain.agents and passing a model, tools and a system prompt.
Filed on Agent Radar. Claims in this note are limited to the sources above.