checkpoint==1.0.3

langgraph-checkpoint 1.0.3

Summary of Changes

• Improved type hints in BaseCheckpointSaver.put and aput to specify that new_versions is of type ChannelVersions instead of generic dict (#1277)
• Enhanced JsonPlusSerializer with support for additional Python data types, making serialization more robust (#1277)

Detailed Changes

langgraph.checkpoint.base.BaseCheckpointSaver

• Improved documentation for put and aput methods to specify that the new_versions parameter is of type ChannelVersions rather than a generic dict, providing better type clarity (#1277)

langgraph.checkpoint.serde.jsonplus.JsonPlusSerializer

• Added serialization support for many new Python types (#1277):
  • pathlib.Path objects
  • Regular expressions (re.Pattern)
  • decimal.Decimal values
  • deque collections
  • IP address types: IPv4Address, IPv4Interface, IPv4Network, IPv6Address, IPv6Interface, IPv6Network
  • Time-related types: date, time, ZoneInfo
• Improved error handling in the deserialization process to gracefully handle missing modules or attributes, returning None instead of raising exceptions