langchain-core==1.5.4

langchain-ai/langchain Releases Developers & Open Source 08/12/2026, 02:03 Score 8/10

Summary

Changes since langchain-core==1.5.3 release(core): 1.5.4 ( #39592 ) fix(core): compat with pydantic 2.14 ( #39328 ) fix(core): stop StructuredPrompt from mutating caller kwargs ( #39174 ) fix(core): preserve flat tool args schema for RootModel runnables ( #39307 ) fix(core): close internally created event loops in streaming tracers ( #39222 ) chore: bump the minor-and-patch group across 3 directories with 7 updates ( #39187 ) fix(core): preserve OpenAI file blocks ( #39205 ) fix(core): document reserved argument names for tools ( #39207 ) fix(core): handle injected args for subclasses of BaseTool ( #39202 ) fix(core): respect include_injected=False with filter_args ( #39200 ) fix(core): redact streaming callback options ( #39179 ) fix(core): type text stream projections ( #39170 ) chore(infra): add missing LICENSE files to publishable packages ( #39146 )

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