LangChain langchain-core==1.5.5 is out. Here's what changed:
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(c
Sourced from GitHub Releases. Published 2026-08-14.