Iimos is an AI agent application that ships as a single chat box and can rewrite its own code, UI, and system prompt in response to user requests. Everything runs locally on the user's machine with their choice of LLM endpoint, and changes are version-controlled with automatic rollback on failure.
Next.js 16.4 introduces Cache Components as the default programming model, offering fast initial loads, instant client navigations, and declarative, opt-in caching. The release includes performance improvements like reduced memory usage, smaller bundles, and React 19.3 support, with new agentic tooling to help existing apps migrate.