langgraph 0.2.9

Summary of Changes

• Refactored channel and managed value handling for better integration and performance
• Improved architecture by reducing component coupling and centralizing management code
• Enhanced error handling for interruptions to prevent unnecessary retries in task execution (PR #1413)

Detailed Changes

langgraph.pregel.retry.run_with_retry

• Added special handling for GraphInterrupt exceptions to avoid retry attempts for intentional interruptions (PR #1413)
• This applies to both synchronous and asynchronous versions of the retry function

langgraph.graph.state.StateGraph

• Improved integration of managed values with channels in the compiled graph
• Updated type annotations from ManagedValue to ManagedValueSpec for better precision
• Enhanced channel handling to properly integrate managed values in the compilation process

langgraph.pregel.manager

• New module that provides centralized managers handling both channels and managed values together
• Replaced separate managers from different modules with unified implementations
• Simplified the API for creating and managing channel contexts

langgraph.pregel.loop.PregelLoop

• Restructured to remove direct graph dependencies for better encapsulation
• Added property to store final output directly on the loop instance
• Simplified execution flow and improved how tasks are processed