TAG
#langchain
Stories connected through a shared idea, actor, technology or theme.
LangChain model profiles expose mid-conversation supportThe release declares mid-conversation support in model profiles across the core, Anthropic and OpenAI integrations. This gives applications structured metadata for deciding whether a provider can safely accept model or configuration changes during an active exchange.→LangChain 1.4.3 adds Bedrock Mantle support and agent fixesThe release adds Amazon Bedrock Mantle chat-model support to init_chat_model and recognises GPT-6 structured output without explicit profiles. It also repairs invalid tool calls in create_agent and sanitises cache settings for fallback models.→LangChain publishes experimental type-safe routing middlewarelangchain-typesafe 0.0.1a3 is an initial release containing TypeSafeClassifier, experimental AutoModeMiddleware and experimental ModelRouterMiddleware. It also adds invocation-scoped classifier questions and usage metadata in traces.→LangChain 1.4.0a3 adds native MCP adaptation and human resumptionsLangChain 1.4.0a3 introduces a `langchain.mcp` namespace that adapts MCP servers into LangChain tools from URLs, local scripts, in-process servers or prebuilt clients. Its elicitation interrupt mode surfaces server questions as LangGraph interrupts so a human can answer and resume the run, with optional tool-discovery caching.→