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@github-actions github-actions released this 13 Nov 01:19
checkpoint==2.0.3
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langgraph-checkpoint 2.0.3

Summary of Changes

  • Fixed an issue to prevent duplicate writes in the in-memory checkpoint saver (#2399)
  • Added serialization support for objects implementing the CommandProtocol interface

Detailed Changes

langgraph.checkpoint.memory.InMemorySaver

  • Fixed an issue to avoid duplicating writes to the same channel by adding a check to skip writing when a key already exists (#2399)

langgraph.checkpoint.serde.jsonplus.JsonPlusSerializer

  • Added serialization support for objects implementing the CommandProtocol interface in both JSON and MessagePack formats
  • Updated the serializer to properly handle command objects by encoding their attributes

langgraph.checkpoint.serde.types

  • Added a new CommandProtocol interface that mirrors the Command type from langgraph, providing serialization capabilities for command objects that include update and send operations
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