langgraph 0.2.10

Summary of Changes

• Improved streaming output handling in the Pregel execution model to ensure more consistent processing
• Enhanced debug output to include error and interrupt information
• Fixed a bug where streamed output might be lost when a task completes execution

Detailed Changes

langgraph.pregel.Pregel

• Refactored streaming mechanism for better output handling in stream and astream methods
• Moved stream handling to ensure outputs are properly emitted even after loop context exit
• Changed how tasks and their results are processed in the streaming pipeline

langgraph.pregel.debug.TaskResultPayload

• Added new fields to enhance debug information:
  • error: Optional[str]: Captures any error that occurred during task execution
  • interrupts: list[dict]: Records any interrupts that were triggered

langgraph.pregel.debug.map_debug_task_results

• Updated function signature to accept task-writes pairs instead of just tasks
• Improved handling of stream keys to support both string and sequence formats
• Enhanced output to include error information and interrupts

langgraph.pregel.loop.PregelLoop

• Added stream_keys as a class attribute to better manage streaming outputs
• Enhanced put_writes method to automatically stream updates and debug information
• Simplified tick method by removing redundant parameters

langgraph.pregel.loop.SyncPregelLoop and AsyncPregelLoop

• Updated constructor signatures to support the new streaming architecture
• Aligned with changes in the base PregelLoop class

langgraph.pregel.io.map_output_updates

• Modified to handle the new task-writes tuple format
• Added filtering to exclude ERROR and INTERRUPT keys from regular output streams