github langchain-ai/langchain langchain-core==0.3.20

Changes since langchain-core==0.3.19

core[patch]: release 0.3.20 (#28293)
core[patch]: support final AIMessage responses in tool_example_to_messages (#28267)
core: add space at end of error message link (#28270)
core[minor]: Add other langgraph packages to sys_info (#28190)
standard-tests: rename langchain_standard_tests to langchain_tests, release 0.3.2 (#28203)
multiple: langchain-standard-tests -> langchain-tests (#28139)

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