AI updates
LangChain 1.0 released
LangChain reached 1.0. The release notes list the final changes before it: new middleware (shell, file search, tool retry), an injectable ToolRuntime, state-schema options for create_agent, and Python 3.14 support.
- The 1.0 release notes centre on the agent API (create_agent) and middleware around tool calls.
- Tool retry, shell and file-search middleware arrived in the run-up to 1.0.