ExpressoTS v4 is in preview, and the new site + docs are live.

ExpressoTS v4 is in preview, and the new site + docs are live.

ExpressoTS v4 预览版发布，全新官网及文档正式上线。

After a full 1.4 years of work, v4 is ready for developers, AI builders, and teams shipping SaaS products on Node.js. 经过整整 1.4 年的开发，v4 版本现已面向开发者、AI 构建者以及使用 Node.js 发布 SaaS 产品的团队正式推出。

ExpressoTS gives you a solid backend foundation: DI, interceptors, typed events, guards, testing utilities, and a lightweight core engine designed to keep services structured, maintainable, and production ready. ExpressoTS 为你提供了一个坚实的后端基础：依赖注入（DI）、拦截器、类型化事件、守卫、测试工具，以及一个轻量级的核心引擎，旨在保持服务的结构化、可维护性并使其达到生产就绪状态。

It works for experienced developers who want clean architecture, but also for founders and builders using AI to create products and businesses without ending up with a pile of fragile routes. 它不仅适用于追求整洁架构的资深开发者，也适合那些利用 AI 构建产品和业务的创始人和开发者，帮助他们避免陷入代码中堆积如山、脆弱不堪的路由逻辑。

The headline feature is ExpressoTS Studio: a local developer platform that records every request, maps your architecture from the live DI graph, replays traffic, and scores security from real dev traffic. Nothing leaves your machine. 其核心亮点功能是 ExpressoTS Studio：这是一个本地开发者平台，能够记录每一次请求，根据实时依赖注入图映射你的架构，回放流量，并根据真实的开发流量进行安全评分。所有数据均保留在你的本地机器上。

If you use AI to move fast, Studio is how you see what you shipped before production does. 如果你正在利用 AI 快速迭代，Studio 能让你在代码进入生产环境之前，清晰地看到你所交付的内容。

Try it: npx @expressots/cli@next new my-new-saas-idea 立即尝试：npx @expressots/cli@next new my-new-saas-idea

Docs: https://doc.expresso-ts.com/docs/prologue/release 文档：https://doc.expresso-ts.com/docs/prologue/release

Linkedin: https://www.linkedin.com/company/expresso-ts 领英：https://www.linkedin.com/company/expresso-ts