🚀 Release v0.3.0: LangChain v1 Migration & Enhanced Deep Agent#1
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…attern Major refactoring to support LangChain v1 with modern middleware API: - Replace `modify_model_request` with `wrap_model_call` and `awrap_model_call` - Update ModelProviderMiddleware to use new middleware pattern - Change provider registration to use "openai-compatible" instead of "openai" - Update all examples and documentation to use `system_prompt` parameter - Bump version to 0.3.0 to reflect breaking changes - Update dependencies: langchain>=1.0.0, langchain-dev-utils>=0.1.24 - Add langchain-anthropic>=1.0.0 dependency - Update all test cases to use new middleware API - Replace Qwen/Qwen3-8B with THUDM/glm-4-9b-chat in examples - Add comprehensive LangChain v1 migration notes in README Breaking Changes: - Middleware now uses `wrap_model_call` instead of `modify_model_request` - Provider registration uses "openai-compatible" for custom providers - Full async/await support throughout middleware layer
… signature and fix test fixtures - Update create_deep_agent call to match latest signature (model as first parameter) - Remove autouse=True from mock_openai_key fixture to prevent interference with integration tests - Switch default model from GLM-4.5 to DeepSeek-V3.2-Exp via SiliconFlow - Update test expectations to match new parameter ordering - All unit and integration tests passing
- Update version in pyproject.toml and uv.lock to 0.3.0 - Modify README badges to reflect new version and LangChain v1.0 - Enhance README content to clarify middleware updates and compatibility with LangChain v1.0 - Document key changes in middleware pattern and state management improvements This commit reflects the transition to LangChain v1.0 and ensures the documentation is up-to-date with the latest changes.
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- Bump version of deepagents from 0.1.0 to 0.1.1 in uv.lock and sample-deep-agent's pyproject.toml. - Upgrade iniconfig from 2.1.0 to 2.3.0 in uv.lock. - Update langchain-dev-utils from 0.1.24 to 1.0.0 in uv.lock and langgraph-up-devkits' pyproject.toml. - Increase uvicorn version from 0.37.0 to 0.38.0 in uv.lock. - Ensure all dependencies are aligned with the latest versions for improved stability and performance.
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Summary
This release (v0.3.0) represents a major upgrade to the official LangChain v1.0 and LangGraph v1.0 ecosystem with significant architectural improvements and enhanced deep agent capabilities.
🎯 Release Highlights
🔄 LangChain v1.0 & LangGraph v1.0 Migration
modify_model_requestwithwrap_model_callandawrap_model_callrequest.runtime.contextfor model specifications🤖 Deep Agent Enhancement
sample-deep-agentto use correctcreate_deep_agentsignatureasync_create_deep_agenttocreate_deep_agentinstructionstosystem_promptsiliconflow:deepseek-ai/DeepSeek-V3.2-Expdeepagentsto v0.1.1🛠️ Development Tools Enhancement
deep_web_searchwith timestamp-based file organizationFileDatastructure with ISO timestamps📚 Documentation Updates
📦 Components Updated
Core Dependencies (Official v1.0 Releases)
langchain: 1.0 (official stable release)langgraph: 1.0 (official stable release)langchain-dev-utils: 1.0.0deepagents: 0.1.1uvicorn: 0.38.0iniconfig: 2.3.0Libraries
libs/langgraph-up-devkits/:Applications
apps/sample-deep-agent/:create_deep_agentwith correct signatureRoot Project
🔧 Technical Changes
Breaking Changes
async_create_deep_agent→create_deep_agentinstructionsparameter →system_promptmodify_model_request→wrap_model_call/awrap_model_callMigration Path
✅ Testing & Quality
📊 Statistics
🎉 Why This Upgrade Matters
Production Ready
Developer Benefits
🚀 Next Steps
After merging:
🔗 Related Resources
🤖 Generated with Claude Code
Co-Authored-By: Claude noreply@anthropic.com