langchain-anthropic==1.4.2

📅 Apr 28, 2026📦 langchainView on GitHub →

✨ 1 features🐛 1 fixes🔧 2 symbols

Summary

This release for langchain-anthropic (1.4.2) restores cache control functionality and introduces content-block-centric streaming (v2) in the core library, alongside bumping minimum dependency versions.

Migration Steps

Bump minimum required versions for core dependencies.

✨ New Features

Add content-block-centric streaming (v2) to core.

🐛 Bug Fixes

Restore `cache_control` on non-direct subclasses in langchain-anthropic.

Affected Symbols

langchain-anthropic core