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LangChainLangChain/LangChain (Python)

LangSmith gateway via env var; tool call token counting fix

langchain-core==1.5.1

July 23, 2026LangChain (Python)View original ↗
1 feature1 fixThis release1 featureNew capabilities1 fixBug fixesAI-tallied from the release notes

Changes since langchain-core==1.5.0

release(core): 1.5.1 (#39042) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(core): use tool_call_schema cache for BaseTool token counting in count_tokens_approximately (#39020)

Fetched July 24, 2026

LangSmith gateway via env var; tool call token counting… — releases.sh