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langchain-core==1.5.5

Updated September 26, 2026 · 2:47 PM · source date August 14, 2026

Summary

langchain-core==1.5.5 langchain-ai / langchain Public Notifications You must be signed in to change notification settings Fork 24.6k Star 147k langchain-core==1.5.5 github-actions released this 14 Aug 18:56 langchain-core==1.5.5 c197a7b This commit was created on GitHub.com and signed with GitHub’s verified signature . GPG key ID: B5690EEEBB952194 Verified Learn about vigilant mode .

Why it matters

This Other is relevant to the technology intelligence record because it involves Meta, Anthropic, GitHub. The source article should remain the factual reference for follow-up coverage.

Key facts
  • langchain-ai / langchain Public Notifications You must be signed in to change notification settings Fork 24.6k Star 147k langchain-core==1.5.5 github-actions released this 14 Aug 18:56 langchain-core==1.5.5 c197a7b This commit was created on GitHub.com and signed with GitHub’s verified signature .
  • GPG key ID: B5690EEEBB952194 Verified Learn about vigilant mode .
  • Changes since langchain-core==1.5.4 release(core): 1.5.5 ( #39655 ) fix(core): make abatch_iterate consistent with batch_iterate for None and zero size ( #39367 ) fix(core): respect pydantic aliases when validating tool inputs ( #39572 ) fix(core): issues in merging chunks ( #39535 ) fix(core): handle v1 base model validation in async path ( #39576 ) fix(core): handle tool descriptions for infer_schema=False ( #39573 ) fix(core): clear usage metadata callback on exceptions in context manager ( #39616 ) fix(core): handle falsy LLM and chat model caches ( #39283 ) chore(core): add httpx as an explicit dep ( #39612 ) fix(core): preserve non-str/non-dict items in DictPromptTemplate list values ( #39588 ) fix(core): raise ValueError when explicit tool_outputs length mismatches tool_calls in tool_example_to_messages ( #39142 ) fix(core): guard malformed Anthropic content blocks ( #38670 ) Assets 4 Loading Uh oh!
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