langchain-anthropic==1.4.3

LangChain Releases / 5/4/2026

📰 NewsDeveloper Stack & InfrastructureTools & Practical Usage

Key Points

  • langchain-anthropic version 1.4.3 was released, updating changes from 1.4.2.
  • The release includes a refactor in langchain-classic to retarget deprecations to the create_agent API, along with other maintenance changes.
  • A documentation-related change updates X (Twitter) handle references.
  • A fix in the anthropic integration adds a guard for httpx finalizers to improve stability/cleanup behavior.

Changes since langchain-anthropic==1.4.2

release(anthropic): 1.4.3 (#37166)
refactor(langchain-classic): retarget deprecations to create_agent, other chores (#37164)
chore(docs): update x handle references (#37081)
fix(anthropic): guard httpx finalizers (#37064)