news
LangChain Isn't Dead. It's Worse.
Four vendor SDKs shipped in eleven days, commoditizing LangChain's core runtime into a free default. Two products survive: LangSmith and LangGraph. Here's what that means for your stack and the migration math nobody talks about.
news
Every Agent SDK Ships a Runtime. None Ships the Tests.
Anthropic, OpenAI and LangChain shipped agent runtimes in April 2026. None shipped an eval framework. Devs pay the tab.